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Megger MIT1525-DCM340EN-DD

15 kV DC Diagnostic Insulation Resistance Tester (MIT1525) with Free Digital Clamp Meter (DCM340)

Brand: Megger
Model No: MIT1525-DCM340EN-DD
Our Model No: MIT1525DCM340DD
Condition: NEW
Sale $6,085.00

MIT1525 Features:

  • Insulation resistance up to 20 TΩ @ 10kV
  • IR, IR(t), DAR, PI, SV, DD, ramp test modes
  • 3 mA short circuit current
  • 3 mA of noise rejection
  • Li-ion battery with up to 6 hrs continuous testing @ 5 kV with a 100M load
  • Battery meets IEC 2133
  • Safety rating CATIV 600 V to 3000 m
  • Large LCD display with backlight
  • Dedicated voltmeter function (30 V to 660 V)
  • Advanced memory, on screen recall and real time clock for date/time stamped results
  • Download of on-board results via USB interface
  • Recorded temperature (measured by independent instruments) can be saved with test results
  • PowerDB Lite asset management software supplied
  • Safety rated at CAT IV 600 V (maintained to 3000 m altitude)

DCM340 Features:

  • DC and AC current and voltage
  • 600 A and 600 V
  • Resistance and continuity
  • 3 1/2 digit, 4000-count display with backlight
  • High resolution digital bargraph
  • Peak, min/max and data-hold functions


  • Installing, maintaining, fault-finding or monitoring electrical systems and equipment
  • Motors and heaters
  • Domestic power generation from solar panels and wind-turbines
  • Battery monitoring
  • Electric vehicle servicing such as fork-lift trucks
  • Lift maintenance
  • UPS commissioning, servicing and maintenance
  • Electro-plating plants and welding equipment servicing

MIT1525 15 kV DC Diagnostic Insulation Resistance Tester

The Megger MIT1525 15 kV DC Diagnostic Insulation Resistance Tester for the testing and maintenance of high voltage electrical equipment. Enclosed in a tough case, it is both smaller and lighter than its predecessors, making it even easier to carry and store.

Safety rating is not compromised on the MIT1525 range with all terminals safety rated to CATIV 1000 V to 3000 m. A range of 5 kV and 10 kV test leads are available, plus dedicated 15 kV test leads which are double insulated with clips designed for 15 kV creepage paths. The 15 kV leads are supplied in a holdall.

The MIT1525 range has a dual case design which includes a tough outer shell to protect the tester from knocks and drops, and an inner fire retardant case. It has an IP 65 rating when the case is closed, eliminating moisture and dust ingress.

An intuitive user interface helps to ensure that no time is lost trying to remembering how to use the MIT1525. Simplicity of operation is achieved with two rotary switches, and the large backlight display enables multiple results to be displayed simultaneously. A graphical quick start guide is provided inside the lid to assist any first-time users.

Five preset voltage ranges are provided in insulation test mode, as well as a user settable lock voltage range. Preconfigured diagnostic tests include Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Stepped Voltage (SV) and Ramp Test. Advanced memory storage includes time/date stamping of results, logging of data, and recalling results on-screen. A fully isolated USB interface is used for safe transfer of data to the asset management software.

Advanced memory storage includes time/date stamping of results, logging of data and recall of results to screen. A fully isolated USB device interface (type B) is used for safe transfer of data to Megger's PowerDB/Pro, Advanced and Lite asset management software.

The Insulation Resistance (IR) test is a quantitative test indicating the effectiveness of a product's electrical insulation. Applications include cables, transformers, motors/generators, circuit breakers and bushings. Common insulation tests are the "spot test", a 1 minute IR test, and a 10 minute Polarisation Index (PI) test.

Note: Wearing suitably rated HV gloves and other personal protection equipment is required while testing.

15 kV DC Medium Test Leads Click for larger image

15 kV DC Medium Test Leads

Medium Instulated Test Clip 15 kV Leadset

These clips are designed for clamping on medium diameter test pieces, where space is also at a premium. The insulation is designed only to protect the user from the output of Megger 15 kV insulation resistance testers.

Note: These clips cannot, under any circumstance, be relied upon to protect the user from live AC systems above 1000 VAC/RMS in a CATIV environment.

15 kV DC Large Test Leads Click for larger image

15 kV DC Large Test Leads

Large Insulated Test Clip 15 kV Leadset

These clips are designed for clamping on large diameter test pieces. The insulation is designed only to protect the user from the output of Megger 15 kV insulation resistance testers.

Note: These clips cannot, under any circumstance, be relied upon to protect the user from live AC systems above 1000 VAC/RMS in a CATIV environment.

Designed for Everyday Use

Test leads are a key component to any precision instrument; safety, long life, and the ability to provide reliable connections to a variety of test pieces found in everyday applications are of the utmost importance. Megger designs test leads for both safety and practical operation.

HV Locking Mechanism Click for larger image

HV Locking Mechanism

Locking HV Insulated Plugs/Non-Removable Test Clips

MIT1525 insulation testing test leads are fitted with unique locking HV plugs and non-removable test clips. This reduces the likelihood of a plug or clip inadvertently losing electrical connection and the capacitance of a long cable remaining lethally charged.

Creepage and Clearance Click for larger image

Creepage and Clearance

Practical Insulation Design

Moving jaw fingers maintain the clips' touch-proof safety when the clip is closed, but flex back to allow the metal teeth of the clip to contact the test piece unimpeded when open.

Curved Jaw Design Click for larger image

Curved Jaw Design

Practical Jaw Design

Note: The design of the lead sets is intended to facilitate connection to a variety of de-energized systems for the purpose of making insulation resistance measurements. In all cases it is the responsibility of the user to employ safe working practices and verify that the system is safe before connection. Even isolated systems may exhibit significant capacitance which will become highly charged during the application of an insulation test. This charge can be lethal and connections, including the leads and clips, should never be touched during the test. The system MUST be safely discharged before touching connections.

DCM340 AC/DC Digital Clamp Meter

The Megger DCM340 AC/DC Digital Clamp Meter is a highly versatile instrument, ideal for use in the installation, maintenance, monitoring, or checking of AC or DC electrical systems and equipment. Current measurement, combined with the comprehensive and accurate multimeter functions of the DCM340 clamp meter eliminates the need to carry both instruments at once.

The DCM340 is highly versatile in its measurement range. It is capable of measuring AC and DC current up to 600 A; AC and DC voltage up to 600 V; resistance up to 400 Ω; and frequency up to 400 HZ.

The large, clear digits on the DCM340's numeric display are complemented by the high-resolution digital bar graph, useful for indicating trending and measurement fluctuations. The backlight allows users to see in poorly lit areas, such as distribution cupboards and corners of switchrooms. The data-hold feature enables its use on difficult access cables, where otherwise the display may be impossible to see. Min/Max hold provides the ability to store the maximum and minimum DC or RMS values over a period of time. While storage is taking place, either the present, maximum or mini-mum value can be displayed. Peak hold stores the maximum and minimum peak value of an AC signal at a 10 ms sample rate. The auto-off feature automatically places the meter in power-save mode after 30 minutes from power-on, but this can be disabled if required for min/max measurements. Using the Relative mode (REL), a stable value can be stored, the instrument zeroed out, and then any variation from that value can be displayed as a direct measurement relative to it.

The DCM340 is safety rated to IEC 61010-1 Cat III 600 V, and is drop-tested onto a hard surface for up to 1.2m.

MIT1525 Specifications
AC Voltage (auto-ranging): 90-264 V rms, 47- 63 Hz 200 VA
Battery Charge Time: 2.5 hours deep discharge, 2 hours normal discharge
Batteries: 11.1 V, 5.2Ah Li-ion, IEC 62133:2003 (x2)
Battery Life: 4.5 hours (typical) continuous testing at 15 kV with a 100 MΩ load
Test Voltage: 1000 V, 2500 V, 5000 V, 10000 V, 15000 V, VL
Test Voltage Accuracy: 4%, 0%, +/-10 V nominal test voltage at 1 GΩ load (0 - 30°C)
Resistance Range: 10 kΩ to 30 TΩ @ 15 kV
From 1 MW to: +/-5% ≤ 3 TΩ, +/-20% to 35 TΩ
Guard Terminal Performance: Guards out parallel leakage resistance down to 250 kΩ with a maximum additional resistance error of 1% with a 100 MΩ load
Analogue Display: 100 kΩ to 10 TΩ
Digital Display: 10 kΩ to max a above
Short Circuit/Charge Current: 3 mA @ 5 kV, 10 kV, 15 kV
Insulation Test Alarm: 100 kΩ to 10 GΩ
Capacitor Charge: < 3 s/μF at 3 mA to 5 kV
Capacitor Discharge: < 120 ms/μF to discharge from 5000 V to 50 V, < 250 ms/μF to discharge from 10000 V to 50 V, < 3500 ms/μF to discharge from 15000 V to 50 V
Capacitance Range: 0.01 nA to 6 mA
Capacitance Measurement: +/-10% +/-5 nF
Current Range: 0.01 nA to 6 mA
Current Accuracy: +/-5% +/-0.2 nA at all voltages 74°F (23°C)
Interference: 6 mA from 2100 V to 15 kV
Voltmeter Range: 30 V to 660 V ac or dc, 45Hz - 65Hz
Voltmeter: +/-3%, +/-3V
Timer Range: Up to 99 minutes 59 seconds, 15 second minimum setting
Memory Capacity: 5.5 hours logging @ 5 sec intervals
Test Modes: IR, IR(t), DAR, PI, SV, DD, ramp test
Interface: USB type B (device)
Real Time Output: 1 HZ output readings (V, I, R)
Maximum Altitude: 3000 m (15 kV)
Operating Temperature Range: -4 - 122°F (-20 - 50°C)
Storage Temperature Range: -13 - 149°F (-25 - 65°C)
Humidity: 90% RH non-condensing at 104°F (40°C)
IP Rating: IP65 (lid closed), IP40 (lid open)
Rating: CAT IV 1000 V to 3000 m altitude, Meets IEC 61010-1 requirements
EMC: Meets IEC61326-1 requirements
Dimensions (L x W x H): 360 mm x 305 mm x 194 mm
Weight: 14.3 lbs (6.5 kg)
DCM340 Specifications
AC Current
Range Accuracy
0 - 60 A +/- 1.9% +/- 7 digits
+/- 2.5% +/- 7 digits
60 - 400 A +/- 1.9% +/- 5 digits
+/- 2.5% +/- 5 digits
400 - 600 A +/- 2.5% +/- 5 digits
+/- 2.9% +/- 5 digits
DC Current
Range Accuracy
0 - 60 A +/- 1.5% +/- 10 digits
60 - 400 A +/- 1.9% +/- 5 digits
400 - 600 A +/- 1.9% +/- 10 digits
Range Accuracy
0 - 400 V +/- 1.0% +/- 5 digits
+/- 0.7% +/- 2 digits
400 - 600 V +/- 1.0% +/- 5 digits
+/- 0.7% +/- 2 digits
Input impedance: 1 MΩ // < 100 pF
Resistance and Continuity
Range Accuracy
0 - 400 Ω +/- 1% +/- 3 digits
Open circuit voltage: 3 V
Continuity Check: Beeper sounds @ < 30 Ω
Range/Resolution Accuracy
20 - 400 Hz/1 HZ +/- 0.1 % +/- 2 digtits
Sensitivity: 3 A
Peak Hold: +/- 3% +/- 15 digits
Sample time: 10 ms
MIN/MAX Hold: Add 15 digits to accuracy for AC and DC Amps
Positional error: +/- 1% of reading
Overload protection: 600 V and 600 A RMS
AC conversion: Average sensing RMS indication calibrated to the RMS value of a sine wave input
Auto power-off: 30 minutes after power-on
Display: 3 1/2-digit large-scale readout
Count 400
Sample Rate: 1.5 per second
Overrange "OL"
Power Requirements
Battery: 1 x 9V PP3 MN1604 6LR61 alkaline cell
Battery life: 200 hours (alkaline)
Operating Temperature
32 - 86°F (0 - 30°C) < 80% Rh
86 - 104°F (30 - 40°C) < 75% Rh
104 - 122°F (40 - 50°C) < 75% Rh
Storage Temperature (with batteries removed)
-4 - 140°F (-20 - 60°C) < 81% Rh
Overvoltage safety category: IEC 61010-1 600V CAT III
Operating Altitude: 2000m
Drop protection: 1.2m onto a hardwood
Jaw size/maximum conductor: 35mm diameter
Calibration period: 12 month (recommended)
Dimensions (W x H x D): 2.6 in. x 9.3 in. x 1.7 in. (68mm x 237mm x 42mm)
Weight (including batteries): .5 lbs. (225g)
  • 1 - 15 kV DC Diagnostic Insulation Resistance Tester (MIT1525)
  • 1 - MIT1525 Power Lead
  • 3 - MIT1525 3m (10 ft.) Test Leads with Large 15 kV Insulated Clips (1002-949)
  • 1 - MIT1525 USB Cable
  • 1 - MIT1525 PowerDB Lite Software
  • 1 - MIT1525 Product Information CD
  • 1 - AC/DC Digital Clamp Meter (DCM340)
  • 2 - DCM340 Batteries
  • 1 - DCM340 Test Leads
  • 1 - DCM340 Carrying Pouch
  • 1 - DCM340 Instruction Manual
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MIT1525 Data Sheet: PDF Document Icon (798 KB)
DCM340 Data Sheet: PDF Document Icon (168 KB)
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