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 Megger is a company with a justified reputation for high quality instruments and have a wide range of equipment which covers all aspects of Installation, maintenance and servicing, from insulation testers to communications equipment. Glanford Electronics Limited are approved Distributors and service agents for the range of Avo™ - Megger™ products. We can supply, calibrate, certify and repair equipment in our workshops.
Megger provides a full service solution to meet your electrical test and measurement needs.
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Megger™ products provide testing solutions in the most critical maintenance areas including cable fault locating, protective relay testing, on-line monitoring of substation apparatus, and power quality testing. With such a diverse product offering, they are the single source for electrical test and measuring instruments. Manufacturing insulation testers from 1kV to 10kV is where Megger started, and the Megger brand name is so well known
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today that maintenance professionals often incorrectly use it as a verb when they refer to doing an insulation test on wiring. This famous brand name dates back to 1889, when the first portable insulation tester was introduced with the MEGGER brand name on it. The firm enjoys an outstanding reputation in the areas of ground testing, oil testing and a wide variety of electrical contractor maintenance tools such as multimeters portable appliance testers and clamp-on
meters. |
MEGGER CM500 Combined Installation Tester
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[Read Less] C/w Free Calibration Certificate worth £65
The Megger CM500 Multifunction Installation Tester combines all the functions required to fully test domestic, commercial, and industrial fixed wiring, in accordance with international standards. The CM500 is the first installation tester with a non-tripping loop tester guaranteed not to trip any RCD rated 30 mA or above. Its memory and storage capability offers all data to display, download to a PC and on unique on-site print facility.
| Features Include: |
- Combines the function of several instruments in one package
- Non-tripping loop test for tests on RCD protected cicuits
- RCD ramp test features actual tripping current
- Stores approximately 750 different test results in internal memory
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MEGGER DCM300E Earth Leakage Clamp
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[Read Less] C/w Free Calibration Certificate worth £26
The DCM300E Earth Leakage Clamp designed primarily to check earth leakage
currents with a dedicated 30 mA range providing resolution down to 10 µA. The capabilities of the DCM300E extend to measuring currents of up to 300 A ac, making it a highly versatile instrument capable of taking current measurements in a wide variety of situations and applications. A typical application for the DCM300E would be the measurement of earth leakage current in a circuit where the GFCI repeatedly trips out.  The measured result will quickly identify whether an excessive leakage current is causing the GFCI to trip, or if the GFCI itself is faulty. The DCM300E has 4 ranges: 30 mA, 300 mA, 30 A and 300 A with a best resolution of 0.01 mA. The analog-style bargraph of the DCM300E is very useful when monitoring changes, allowing the operator to easily interpret the rapidly changing bargraph rather than the digital display. Other key functions include the "Data Hold" feature which aids in measurements where there is a problem with accessibility or poor lighting, and the automatic power off feature that extends the battery life. This clampmeter was also designed with safety in mind and exceeds the latest safety design standards
IEC1010-2-32 and EMC requirements. Extra safety features have been designed into the DCM300E to provide a safer working environment for the user
| Features Include: |
- 0.01 mA resolution
- EMC and EN1010-2-32 compliance
- 30 mA, 300 mA, 30 A and 300 A range
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MEGGER DET62D Earth Electrode Tester
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[Read Less] C/w Free Calibration Certificate worth £26
The MEGGER® DET62D is a fully automatic, three terminal instrument built into a rugged, water resistant case giving protection for outdoor use. The instrument is suitable for the testing of single earth electrodes such as lightning conductors and other small earthing systems. The resistance of conductors such as conduit coupling joints can also be measured.
| Features Include: |
- Weatherproof case, protection to IP54
- Three terminal measurement for earth electrode testing
- Simple, fully automatic operation
- Digital display
- Noise rejection to 40 V
- High tolerance to spike resistance helps testing in urban areas
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Megger MFT1500 Series Multifunction Tester
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[Read Less] C/w Free Calibration Certificate worth £65

The MFT1500 is available in 3 options, the standard MFT1501/2 the MFT1502/2 which includes useful additional facilities such as backlit display and range switches, plus the unique Megger illuminated switched probe, and the MFT1552 which has an automatic RCD test feature.
The unique modern styling of the instruments allows it to be operated whilst stood on the floor, a ledge, hung around the neck with the supplied neck strap, or held in the hand.
The MFT1500 Series instruments use the patented Megger digital/analogue arc display. The analogue arc provides an indication of fluctuating readings, while the digital readout providing the ability to record accurate results.
All test functions are selectable from the main panel, with no hidden ranges or functions to forget.
| Main Features Include: |
- Combined 17th Edition testing
- Guaranteed non-tripping loop test range
- Backlit display and selector ranges
- Automatic RCD testing (MFT1552 only)
- Illuminated switch probe
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- Selectable touch voltage
- Touch (fault) voltage and display
- Calibrated earth loop test lead
- Calibration certificate
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MEGGER MFT1553 Multifunction Tester
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[Read Less] C/w Free Calibration Certificate worth £65
The MFT1553 is the latest version of the class-leading Megger multifunction testers. Since they were launched they have changed the way the trade works. With all the testing you need in one tough, easy to use, good value machine. Electricians all over the country have opted to change to the all-in-one solution for their testing.
The new MFT1553 now allows you to transfer the test readings from the tester to a storage device wirelessly. When you have PowerSuite On-site, on your mobile device, like a smart-phone or a PDA, you can complete certificates as you go, there, on-site.
 When you get back from a job the last thing you want is to have to settle down and transfer your readings from your notes.
Well now you don't have to, your full days work is stored as a completed certificate on your mobile device, smart-phone, PDA or laptop. All you have to do is print it sign it and make out the invoice.
| Main Features Include: |
- Bluetooth communication
- Automatic RCD testing
- Combined 16th Edition testing
- Guaranteed non-tripping loop test range
- Backlit display and selector ranges
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- Illuminated switch probe
- Selectable touch voltage
- Touch (fault) voltage and display
- Calibrated earth loop test lead
- Calibration certificate
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Megger MFT1710, MFT1720, MFT1730 Multifunction Tester Data[Read More]
[Read Less] C/w Free Calibration Certificate worth £65

The MFT1700 series is a range of 3 instruments for testing low voltage electrical installations to BS7671. They provide all the tests required to complete the necessary electrical certification for industrial, commercial and domestic fixed wiring installations. The MFT1720 - The most popular of the range of 17th Edition testers offering all the benefits of the MFT1710, plus auto RCD testing, phase rotation, programmable and 3-phase RCD testing and current measurement with the optional clamp.
All instruments are IEC 61010 CAT IV 300 V rated for connection to low voltage systems with no protective device, so safe for connection anywhere on the system right up to the source transformer without risk of damage from large transient spikes.
The unique modern styling allows it to be operated while stood on the floor, a ladder-shelf or platform, hung around the neck or handheld. Dual TEST and LOCK buttons one pair at each end makes the testers easy to operate left or right handed.
Quick to pick up and use, the controls are colour coded to make range selection easy and fast. They also reduce the chance of using the wrong function or range. The large crystal clear backlit display uses the patented Megger digital/analogue arc, providing indication of fluctuating readings while the dual digital readout shows precise values of key measurements simultaneously with the test parameters, such as the output voltage on insulation testing as well as the resistance value in MÙ.
Visible and audible safety warnings are paramount when testing high-energy systems and the MFT1700 series includes full input protection and safety warnings when a hazardous voltage is present. If live voltages exist on a circuit during insulation or continuity testing, the voltage is displayed on the screen. If this voltage exceeds a safe level, further testing is inhibited and a warning beep sounds.
The MFT1730 features internally rechargeable batteries and charger with a charge time of less than 4 hrs, so reducing the cost of ownership.
Fully compliant with all requirements of IEC 60364 derived standards including VDE 0100 and BS 7671, the new MFT includes all the latest measurement technology in a light-weight compact design, fully protected and usable on single phase and 3 phase installations.
New measurement functions include two wire non-trip loop test technology for fast repeatable results, comprehensive testing of RCDs including type B, and integrated 3-terminal techniques for earth electrode testing.
| Features
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- System voltage and frequency measurement (TRMS)*
- Insulation test at 100 V*, 250 V, 500 V and 1000 V*
Including input protection against live circuits up to 600 V even when insulation test is locked-on
- Continuity resistance at 200 mA or 15 mA*
Automatic start no need to press TEST so leaving both hands free to hold probes
- Resistance range up to 100 kΩ
With fast continuity buzzer at selectable thresholds
- 2-wire loop test
Non-trip (RCD) and high-current testing Including Phase-to-Phase
- Prospective fault current measurement
Up to 20 kA
- RCD testing including:
Type AC, A, S, B* and programmable RCDs 3-phase RCDs* Auto-test routine Fault (Touch) voltage display
- * Model dependant
- 3-pole earth testing
- Large bright LCD display showing dual parameters - loop resistance and fault current, insulation resistance and test voltage
- Phase rotation indication for verification of rotating machinery
- 3-phase RCD testing for industrial applications with no earth
- 3-terminal earth test for electrode resistance measurement
- On-board data storage and Bluetooth® download
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MEGGER MIT200 Insulation tester for Electricians
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[Read Less] C/w Free Calibration Certificate worth £26
The MIT200 is one of the smallest insulation testers available on the market today. With options of a two and three test voltage instruments, the MIT200 instruments offer a range of safety and operation features.
The display offers a combination of digital readout and analogue display, using Megger's patented DART display
technology, which include the benefits of an LCD display, such as robust, clear and accurate measurement, with an
analogue pointer response for evaluating circuit charge and discharge characteristics.

The instrument housing is in tough ABS, designed to withstand the rigours of hard use, and is small enough to drop
into your pocket when not in use. Battery requirements are 6 AA batteries of either standard
alkaline or nickel metal hydride (NiMH) rechargeable type. A low battery warning indicator gives advanced warning of
exhausted batteries.
Continuity testing
Automatic continuity testing is performed at 200 mA to ensure compliance with international requirements. No need to press the test button.
All instruments will measure up to 100Ohms on continuity, of which 0-10Ohms is performed at greater than 200 mA to meet international electrical testing requirements.
| Main Features Include: |
- Insulation testing to 1000 MOhms
- Continuity testing at 200 mA down to 0.01Ohms
- Live circuit warning (voltage display) and test inhibit
- Digital/Analogue display
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- Alkaline or rechargeable batteries
- 10ºC to +55ºC operating temperature
- CATIII 600 V
- Conforms to EN61557-1
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MEGGER MIT310 Insulation tester for Electricians
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[Read Less] C/w Free Calibration Certificate worth £26
Developed, after extensive customer research, specifically to meet the needs of today's electrical contractors, the new MIT300 range of insulation and continuity testers from Megger is not only durable and easy to use, but also incorporates a comprehensive set of features designed to ensure operator safety, even under conditions of accidental misuse. The range includes four models, ensuring an exact match for the needs of every user, all of which offer automatic discharge of the circuit after testing, audible and visual warning if the test probes are applied to a live circuit, and a test inhibit feature which operates automatically under live circuit conditions.  The units also conform fully to IEC 61010-1 for use in Category III 600V applications, and provide all of the facilities needed to meet insulation testing requirements relating to the current edition of the IEE Wiring Regulations. In line with other products in Megger's comprehensive new contractor range, MIT300 insulation testers feature rugged construction, with an impact-resistant rubber-overmoulded case, and innovative circuitry which guarantees high accuracy combined with stability of calibration. All instruments in the new range provide indication of insulation resistance up to 999Mohms, 200mA continuity testing, a fast-reacting continuity buzzer, and facilities for nulling the resistance of the test leads. The entry-level MIT300 offers insulation test voltages of 250V and 500V, while the remaining models allow testing at 250V, 500V and 1,000V.In addition to the basic features, the mid-range MIT310 adds a default voltmeter function, while the MIT320 supplements these facilities with an a backlit display, illuminated range panel, insulation limit alarm, resistance measurement, and an adjustable threshold for the continuity buzzer. The MIT320 is also supplied with a switched test probe to speed hands free testing. An illuminated switched test probe is available as an optional extra for use with the MIT320. The MIT310, and MIT320 testers incorporate dual solid-state displays which simultaneously show the test results numerically, and in the form of a moving-arc bar graph that accurately simulates the operation of an analogue meter. All testers come complete with a full calibration certificate. For users who prefer a true analogue device, however, Megger is offering the MIT310A which has features similar to those of the MIT310, but with a conventional moving-coil meter movement in place of the digital display.
| Features Include: |
- Extremely easy to use
- Tough rubber armoured case
- Self contained protective cover
- Live circuit warning
- Weatherproof to IP54
- Intelligent Safety System for protection.
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MEGGER MTB7671 Instrument Test Box
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[Read Less] C/w Free Calibration Certificate worth £47
The MTB7671 is designed to provide confirmation that your testers continue to operate properly, and maintain their accuracy and consistency between calibrations. The NICEIC, ELECSA and Corgi among others now request evidence that your testers comply with this. The MTB7671 checks not only the basic functions of the testers, but also that the correct test current or voltage is being used during the test.
For example, a continuity test should not just give a result in ohms, but the short circuit test current should be greater than 200 mA and the open circuit voltage should be within the limits of 4-24 V. 
The PASS/FAIL values are selected to ensure that where there is a published specification for a test parameter then the MTB7671 will test your tester to ensure that it meets these specifications using a series of simple Pass/Fail indications.
Additional test values are provided to ensure that the testers maintain consistent values across the range of their operating specifications. The values chosen for MTB7671 test points are the same as those supplied on all new Megger test instrument calibration certificates which means that you can confirm that the tester continues to provide results that are consistent with its original calibration points.
| Main Features Include: |
- Tests the full range of a testers capability
- Does not trip RCD protected circuits
- Tests to the regulations BS7671, BS EN61557 and IEE On-Site Guide
- Checks insulation, continuity, loop, PFC and RCD functions
- Confirms testers continued performance between calibrations in Colour coded test functions
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MEGGER LTW300 Series Wire Loop Tester
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[Read Less] C/w Free Calibration Certificate worth £26
The new LTW300 series instruments offer a 2 wire loop testing solution that does not trip 30 mA RCDs and can be used on a wide range of voltages without the need to disconnect the electrical supply.
| Main Features Include: |
| The range consists of: |
2 Wire testing |
- LTW315 - 2 Wire loop impedance measurement
- LTW325 - 2 wire + maxZ + (R1+R2)
- LTW335 - 2 wire + maxZ + (R1+R2) + Download
- LTW425 - 2 wire + maxZ + (R1+R2) + 0.001Ω
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- A loop test is performed with only 2 test leads. This can be either:
- Phase to Earth
- Phase to Neutral
- Phase to Phase
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MEGGER PAT4DV/3 and PAT4DVF/3 Portable Appliance Tester
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[Read Less] C/w Free Calibration Certificate worth £37
PAT4DV/3 & PAT4DVF/3 speed testing by working the way you work. PAT4DV is quicker to start, test, download and upload. Full Appliance and Client details are stored along with test results. New Appliances may be added as and where you find them. The combination of Quick Boot, Auto Restart, Real Time Clock, Group Test Codes, Quick Check and Instant Certification will save you up to 50% of your time, resulting in increased efficiency, improved productivity and increased profits for your company compared to other testers.
| Features |
- Fast Testing
- Tests 110 V, 230 V and IT equipment
- Full Test capabilities (Flash Test on PAT4DVF only)
- Compatible with latest IEE Code of Practice
- Extension Lead Testing
- QWERTY keyboard
- 10-Year Real TIme Clock
- Integral Database
- Parallel Printer Port
- RS232 Communication
- Backlight
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Megger PAT320 & PAT350 PAT Tester Data[Read More]
[Read Less] C/w Free Calibration Certificate worth £37

An easily portable desktop appliance tester for testing the safety of portable electrical equipment to meet health and safety regulations. The PAT300 series are fully featured testers with dedicated test buttons for direct access to tests.
They are designed for customers who do not require the complexity of a fully configurable database of clients and results within the tester but do need a complete range of functions to allow automatic or manual testing of the widest range of electrical assets. There are two products in the range, the PAT320 and the PAT350. The PAT350 is identical to the PAT320, with the addition of flash-test capability for use in environments such as manufacturing, production or tool-hire shops.
Simple push-button operation make the PAT300s fast and intuitive in use. All regulatory test requirements are supported, including Class I and Class II, IEC power leads, extension leads and full tests for portable RCDs. An automatic mode is available for Class I and Class II testing. In automatic mode, the tests proceed sequentially through bond, insulation and operation, indicating a pass or fail at each test. If a failoccurs, testing is stopped. When manual testing, each test is preceded by a selection screen where the test parameters are selected, such as bond test current, insulation test voltage or leakage test type. These diagnostic buttons provide direct access to any test individually, allowing single tests to be performed following repair or a suspect result. Accessories supplied with all models include a combined earth-bond and insulation test lead, an adaptor for testing extension leads, and a carry-case convenient product and lead storage.
| Features |
- Simple manual or automatic testing
- 230 V and 110 V operation
- Bond testing at 25 A,10 A and 200 mA
- Differential, touch and substitute leakage testing
- Full colour display
- Tests portable RCDs and extension leads
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MEGGER PAT410, PAT420 & PAT450 Portable Appliance Testers
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[Read Less] C/w Free Calibration Certificate worth £37
The PAT400 series from Megger is a new generation of downloading portable appliance testers, fully testing portable electrical equipment to the latest edition of the Code of Practice for the In-Service Inspection and Testing of Electrical Equipment. There are 3 products in the range; the PAT410 providing a low-profile 230 V only solution without the added weight required of 110 V operation, plus a database capacity for up to 10,000 test results.
The PAT420 provides the same extensive memory and downloading capability, and has the added features of 110 V operation, and also 10 A and 25 A earth bond testing.
The PAT450, the top of the range, has all of these features and includes 1.5 kV and 3 kV flash testing, ideal for tool hire outlets and service workshops where flash testing is routine.
All products in the range have a high duty-cycle, with the design tailored to fast testing, easy operation, and all-day use.
The PAT400s feature a unique fast-re-start, so that when moving the tester from one room to another, it re-starts instantly from the same menu where it was unplugged. This is a significant timesaver, so allowing more tests per day.
USB communication provides convenient download to a standard USB memory stick., and an on-board 10,000 record memory provides interruption-free testing for improvedefficiency, with a large QWERTY keypad for fast data entry. Data is directly compatible with Megger PowerSuite® software for professional certification, and all products have the option  of a barcode scanner and a thermal transfer barcode label printer operating directly from the USB port. Thermal transfer labels are highly resistant, stable and easily available.
The PAT420 and PAT450 have dual 230 V and 110 V operation for complete industrial, commercial and residential applications. Download the Data file for full Specifications.
| Main Features |
- 10,000 memory storage with USB download
- Large 5.7" ¼ VGA backlit full colour screen for clear results
- 200 mA; 10 A and 25 A Bond Test with high duty cycle for repetitive testing (PAT410 200 mA only)
- Selectable PASS/FAIL limits provide instant indication of a faulty asset
- Optional barcode scanner and printer available to save time typing asset IDs
- 230 V and 110 V operation for industrial, commercial and residential applications
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MEGGER PAT420 Business in a Box Portable Appliance Tester
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The Electricity At Work Act requires that electrical equipment used in premises where people are employed or those open to the public is maintained in a safe condition.
An acceptable way of showing that electrical equipment is safe is by performing routine portable appliance testing. The New PAT420 "Business in a Box" from Megger includes everything an electrical contractor needs to diversify into PAT Testing. Any competent person can benefit from this package. It includes comprehensive guides on performing PAT testing, and marketing a PAT testing business to help any business or entrepreneur launch and promote this new venture.
The PAT testing and marketing guides included are a unique feature of the package. They are designed to assist in setting up, running and growing a PAT testing business.
The Guide to PAT testing explains how to perform PAT esting. It assumes some practical experience of working with electricity, but not of portable appliance testing. While remaining simple, it is intended to aid in the detail of how to test and includes identification of the different types of assets that exist and which tests to perform on each type. It also includes the recommended pass/fail criteria from the Code of Practice for In-service Inspection and Testing of Electrical Equipment (published by the IEE) enabling easy identification of a good or faulty asset.
Further opportunities for business may then exist in the repair of faulty assets e.g. a blown fuse or replaced mains lead or plug may incur additional charges to the primary testing fee.
A key feature of this guide is that it has been written in a brief, easy-to-understand style, enabling an easy grasp of PAT testing.
The "Guide to marketing a PAT test business" supplied on the CD provides direction through the difficult business of identifying and locating potential clients, and selling PAT testing services to them. It includes some of the legal background and explains that as an experienced electrician, no additional qualification is required. Download the Data file for full Specifications.
| Main Features Include: |
The business in a box contains: |
- Comprehensive package including PAT tester, software, labels and adaptors
- Includes Megger PowerSuite® Contractor PAT software for database management and professional certification
- Guide to marketing a PAT testing business, how to find clients and how to sell to them
- Guide to PAT testing, what to test and how to test it
- Free life-time product support
- 3-Months free software support
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- How to PAT test booklet including how to identify the asset class, recommended tests and how to do them, and typical pass/fail limits etc.
- "How to Market Your Business" guide on CD, including sales techniques, a view of the law, how to price your PAT services, prospect management, direct-mail letter PAT320s, advert PAT320, press-release, brochure etc.
- PAT420 portable appliance tester
- PowerSuite software for client, location and asset database management, and electronic certification for professional presentation
- Protective pouch for storage and transport of the tester, leads and documents
- Adaptor for testing laptop power supplies
- Combined earth bond, continuity, and insulation test lead with probe and crocodile clip
- 13 A extension lead adaptor
- PASS labels for tested assets, roll of 1000
- Lead storage pouch that can be fixed to the inside or outside of the PAT420 supplied case
- Laminated quick-start guide for the PAT420
- Full user guide for the PAT420 on CD
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MEGGER RCDT300 RCD testers for electricians Download Data
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[Read Less] C/w Free Calibration Certificate worth £26
MEGGER BOOSTS SAFETY IN RCD TESTING Even if they are inadvertently connected to a live three-phase supply, RCD testers in Megger's new RCDT300 range remain undamaged, and present no safety hazard to the user. Introduced after extensive customer research into the requirements of electrical contractors, these innovative instruments combine rugged construction with straightforward operation, and they are offered at very competitive prices. Available in three models, ensuring that all users can choose a model which exactly meets their needs, RCDT300 RCD testers feature a compact ergonomic design, making them easy to handle and use, and a tough impact-resistant body with a rubber overmoulding for additional protection, plus a built-in display cover.  All models in the range are water and dust resistant, with an IP54 ingress protection rating. The low-cost entry-level RCDT310 model is suitable for use on supplies between 100V and 280V, and offers 0.5I, I and 5I tests, with provision for tests starting at 0?/180? of the supply waveform, as well as for DC tests. It also has facilities for testing standard and selective RCDs, and covers current ranges from 30mA to 500mA. When connected to a live supply, it defaults to voltmeter mode. The mid-range RCDT320 covers a wider supply voltage range of 50V to 290V, allowing use with centre-tapped 110V supplies. It incorporates ramp testing testing, for RCD tripping current measurement, and the unique Megger auto sequence test feature, which saves time by allowing the tester to conduct all the RCD tests, and to store the results while the operator stands by the RCD, resetting it as appropriate.The operating current range of the RCDT320 is extended to cover 10mA to 1,000mA devices, and the ability to measure AC supply voltage and frequency is added. The large liquid crystal display for test results is backlit in this model, making it easier to use in locations with low ambient light levels. All models in the range comply fully with the requirements of IEC61010-1 for Category III 300V applications, and are supplied complete with appropriate test leads and a calibration certificate.
| Features Include: |
- Tests standard, DC and selective RCDs
- Ramp testing
- Auto (Remote) testing
- 3 Phase safe
- Enables testing on 110 V centre tapped supplies.
- Tough rubber armoured case with built-in cover
- Weatherproof to IP54
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