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Megger MIT400 Series 1000V Insulation Testers

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$7.84
SKU:
MIT400-EN Series
Availability:
Availability: 11 to 12 Weeks
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Megger MIT400 Series 1000V Insulation Testers

$7.84

Megger MIT400 Series 1000V Insulation Testers is available at EquipTestPro.com with fast shipping and great prices.

Megger MIT400-EN Offers

The Megger MIT400 Series insulation and continuity testers has been designed for electrical testing by power utilities, industrials, telecommunication companies, commercial/domestic electricians and anyone with unique test voltage requirements. The wide range of features also makes the MIT400 Series ideal for maintenance technicians and engineers.

They replace the well-established BM400 insulation tester range, giving greater functionality with simplified operation, greater application range and increased safety.


Insulation Voltage Range

MIT400- 250 V, 500 V and 1000 V


Applications

Industrial and Power Electrical Installation Testing

These models include all the features required for electricians, technicians and engineers working in a range of industries. Available features are selected to make testing easy and fast in a range of situations. Typical applications include:

Key Features

  • CAT IV 600 V rating - provides greater safety when testing at higher voltage levels
  • Adjustable insulation test voltages - provides 250 V to 1000 V or 50 V to 1000 V.
  • Dual digital display readout - allows display of complimentary test information simultaneously (for example: MΩ plus test voltage or MΩ plus leakage current)
  • Digital and analog arc display - includes not only the digital readout but also Megger's patented analog arc to replicate the response of a moving coil display
  • Exceptional measurement range from 20 GΩ to 200 GΩ - highest insulation test range available on the market, providing a superior range of measurement applications.
  • Choice of 20 mA or 200 mA continuity testing - allows user to select lower continuity range thus increasing battery life considerably
  • Continuity auto-test capability - enables real two-handed operation without the need to press the test button
  • Adjustable continuity limit alarm - allows pass/fail limits to be sent to speed testing
  • Automatically perform PI and DAR tests - user is able to quickly perform two important diagnostic tests. . . Polarization Index (PI) and Dielectric Absorption Ratio (DAR)
  • True RMS voltage measurement - allows accurate voltage measurement on noisy lines
  • Auto ranging voltage measurement - automatically adjusts range from millivolts to 600 V AC or DC, eliminating the need to keep changing ranging
  • Live circuit warning - automatically warns of contact to a live circuit, voltage is displayed and testing is inhibited
  • Auto fuse warning - warns of fuse failure automatically. No need to test the fuse manually.
  • Buzzer select button - enable or disable buzzer as required with resistance also displayed on the screen.
  • Stylish tapered design and center button placement - easy to use with either hand

Specifications (MIT400-EN)

*All quoted accuracies are at +20° C.
Insulation Nominal test voltages 250 V, 500 V, 1000 V
Insulation resistance range 20 GΩ
Range Full Scale Accuracy 1000 volts ±3% ±2 digits ±0.2% per GΩ 500 volts ±3% ±2 digits ±0.4% per GΩ 250 volts ±3% ±2 digits ±0.8% per GΩ
Analog range 1 GΩ full scale
Short Circuit Current 2 mA +0% -50%
Terminal voltage -0% +20% ±1 V
Test Current on load 1 mA at min. pass value of insulation specified in BS7671, HD384and IEC364, 2 mA max.
EN61557 Operating range 0.10 M½ to 1.00 GΩ
Leakage Current 10% ±3 digits
Voltage display 3% ±3 digits ±0.5% of rated voltage
Polarization Index (PI) 10 min/1 minute ratio
Dielectric Absorption Ratio (DAR) 60 sec/30 sec ratio
Notes (1) All ranges measure from 0.00 M½ upwards. (2) Above specifications only apply when high quality silicone leadsare being used.
Continuity
Measurement 0.01 ½ to 99.9 ½ (0 to 100 ½ on analog scale)
Accuracy ±3% ±2 digits (0 to 100 Ω)
Open circuit voltage 5 V ±1 V
Test current 200 mA (–0 mA +20 mA) (0.01 ½ to 9.99 Ω) 20mA (±1 mA ) (10.0 ½ to 99.9 Ω)
Zero offset at probe tips 0.10Ω typical
Lead resistance zeroing Up to 9.00 Ω
Buzzer Variable limit 1Ω, 2Ω, 5Ω,10Ω, 20Ω
Resistance
Measurement 0.01 kΩ to 1000 kΩ (0 to 1 MΩ on analog scale)
Accuracy ±3% ±2 digits Open circuit voltage 5 V ±1 V Short circuit current 20 µA ± 5 µA
Voltage range 0 to 600 V d.c. ±2% ±2 digits 10 mV to 600 V TRMS sinusoidal (40 to 400 Hz) ±2% ±2 digits 0 to 1000 V on Analog scale Unspecified input level 0 - 10 mV (40 to 400 Hz) For non-sinusoidal waveforms additional specification apply: ±3% ±2 digits 101 mV to 600 V TRMS and ±8% ±2 digits 10 mV to 100 mV TRMS
Default Voltmeter Operates at >25 V a.c. or d.c. on any range except OFF
Frequency 40 - 450 Hz (40 Hz - 99.9 Hz) ±0.5% ±1 digit (100 Hz to450 Hz)
Result storage
Capacity >1000 test results
Download Bluetooth wireless
Bluetooth Class Class II
Range up to 10 m
Power
Power Supply 5 x 1.5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline NiMH rechargeable cells may be used. Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55 sec OFF @ 1000 V into 1 MΩ
Dimensions
Instrument 220 x 92 x 50 mm (8.66 in. x 3.63 in. x 1.97 in.)
Instrument and case 456 x 178 x 89 mm (18 in. x 7 in. x 3.5 in.)
Weight
Instrument only 590 gms (20.73 oz.), 775 gms (27.22 oz.) with boot
Instrument and case 1.75kg (3.86 lb)
Fuse Use only a 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of highbreaking capacity HBC 50 kA minimum. Glass fuses MUST NOT be fitted.
Safety Protection The instruments meet EN 61010-1 (1995) to 600 V phase to earth, Category IV. Refer to safety warnings supplied.
E.M.C. In accordance with IEC 61326 including amendment No.1
Temperature effects
Temperature coefficient <0.1&Omega per °C up to 1 G&Omega
Environmental
Operating range -10 to +55° C
Operating humidity 90% RH at 40° C max.
Storage temperature range -25 to +70° C
Calibration Temperature +20° C
Maximum altitude 2000 m
Dust and water protection IP54 Protected against dust and splashing water

  • Building/Campus electrical maintenance
  • Large and small scale electrical installations
  • Periodic electrical systems inspection and testing
  • Cable testing


  • Set of silicone test leads - Flexible and long lasting, these leads prevent errors from test lead leakage on high resistance type of insulation testing. They also provide increased accuracy above 10 GΩ.
  • Rugged instrument rubber boot with built-in stand- Protects the instrument from dings and drops and provides an easier, better grip of the instrument.
  • High-impact polypropylene carry case - Further protects the instrument and provides space for the leads, switch probe, etc.
  • Owner information CD.
  • Three year product warranty.
  • Free calibration certificate


Instrument Safety

The MIT400 Series instruments are designed to meet all of the requirements of IEC1010-2 and EN61557 and meets the safety requirements for use on CAT IV 600 V.

  • Any live circuit detection inhibits any insulation testing on circuits above 50 V (75 volts on Telecom models)
  • Any live circuit detection and test inhibit on continuity measurements
  • Default display of live circuit voltage on all ranges
  • Detection and inhibit features function even if the protections fuse has failed

Also, fast detection circuitry prevents damage to the instruments if accidentally connected to live circuits or across phases.



What's included with the Megger MIT400-EN

  • Megger MIT400 Series 1000V Insulation Testers

Shop EquipTestPro.com for the best deals on Megger MIT400 Series 1000V Insulation Testers. Fast shipping, competitive pricing, and expert support. Visit equiptestpro.com today!

Shipping & Return Policy — EquipTestPro
Last Updated: February 1, 2026
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Shipping & Return Policy

Everything you need to know about orders, cancellations, refunds, and delivery.

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Section 01
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Please Note: Certain products are subject to restrictions and cannot be shipped to all destinations. Product-specific shipping availability is noted on each item's detail page. We do not currently ship to international destinations outside of Canada and the United States.
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Section 02
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Flat-rate shipping is calculated to reflect the cost of reliable, insured delivery. The rate shown at checkout is final — no hidden surcharges will be added after your order is placed.

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Section 03
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Rounding Policy: To align with the policies of our shipping carriers, all item weights are rounded up to the next full pound when calculating shipping costs.

For example, an item weighing 3.2 lbs will be rated at 4 lbs for shipping calculation purposes. This policy is standard practice across all major carriers we work with.

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Section 04
Product Restrictions

Some products sold on EquipTestPro are subject to shipping restrictions due to regulatory, carrier, or safety requirements. These include but may not be limited to:

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Where restrictions apply, this will be clearly noted on the product listing. If you have questions about a specific product's shipping eligibility to your location, please contact us before placing your order.

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Section 05
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1
Order Confirmed You receive an email confirmation with your order details.
2
Order Processed Your order is verified and prepared for shipment (1–2 business days).
3
Shipped You receive a tracking number by email once your package is dispatched.
4
Delivered Delivery timelines vary by destination and carrier availability.
Section 01
Order Cancellation Rights

You are entitled to cancel your Order within 30 days of receipt without providing a reason, subject to the processing fee structure described below.

The cancellation deadline is 30 days from the date on which you received the Goods, or on which a third party appointed by you (other than the carrier) takes possession of the delivered product.

To exercise your cancellation right, notify us with a clear written statement by:

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Section 02
Cancellation Processing Fees

The following fee structure applies to all cancellations. Please review carefully before requesting a cancellation.

Customer-Initiated
10%

A processing fee of 10% of the total order value will be withheld from your refund to cover payment processing, handling, and administrative costs.

Company-Initiated (Item Unavailable)
$0

If we cancel your order due to item unavailability, no processing fee will be withheld. You receive a full refund of the amount paid.

Refunds will be issued using the same payment method as the original purchase. No additional fees beyond those described above will be applied.

Section 03
Conditions for Returns

To be eligible for a return, all of the following conditions must be met:

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  • A valid receipt or proof of purchase accompanies the return
Sale Items: Only regular-priced Goods are eligible for a refund. Items purchased on sale or at a discounted price cannot be refunded. This exclusion may not apply where prohibited by applicable law.

We reserve the right to refuse returns of any merchandise that does not meet the above conditions, at our sole discretion.

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Section 04
Non-Returnable Goods

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Section 05
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Important: We strongly recommend using an insured and trackable mail service. We cannot be held responsible for Goods damaged or lost during return shipment, and we are unable to issue a refund without confirmed receipt of the returned Goods or verifiable proof of delivery.
Section 06
Refund Timeline

You should expect to receive your refund within four (4) weeks of delivering your return package to the shipper. In many cases, refunds are processed sooner. The timeline breaks down as follows:

1
Transit to Us 5 to 10 business days for us to receive your return from the shipper.
2
Return Processing 3 to 5 business days to inspect and process your return once received.
3
Bank Processing 5 to 10 business days for your bank to post the refund to your account.

We will process refunds no later than 14 days from the day we receive the returned Goods, using the same payment method as your original purchase.

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Section 07
Gift Returns

If the Goods were marked as a gift at the time of purchase and shipped directly to you, a gift credit equal to the return value (less any applicable processing fee) will be issued. Once the returned product is received and inspected, a gift certificate will be mailed to you.

If the Goods were not marked as a gift at purchase, or if the gift giver had the order shipped to themselves first, the refund will be issued to the original purchaser.

Questions? We're here to help.

Reach out to our support team for assistance with any order or return.

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  • How do I retturn items?
    All returns must be authorized. Items returned prior to authorization will not be accepted. For international customers where applicable, customers must ship any returns to us freight and duty prepaid. Return freight charges for internationsl shippments will be the responsibility of the customer.

    Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.

    Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.

    (Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)

    Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.

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