Megger MIT310, Insulation Tester 999MΩ CAT III 600 V

  • RS庫存編號 516-7697
  • 製造零件編號 MIT310-EN
  • 製造商 Megger
COO (Country of Origin): GB

MIT 300 Series Insulation & Continuity Testers

A range of insulation testers that meet the relevant requirements of EN61557, BS7671, HD 384, IEC 364 and VDE 0413 for applications in all aspects of electrical contracting, building maintenance, testing, inspection and servicing.

20mm LCD display with true analogue response
Tough rubber armoured case with self contained display cover that locks away underneath the instrument during use
Designed to hang comfortably around the neck for hands-free, or for bench use
Automatic 200mA fast continuity test on connection to the circuit
Lead resistance nulling on continuity allows for use of fused test probes
Automatic discharge of circuit under test
Safety input terminal interlock - prevents unsafe connection of test leads
Intelligent Safety System - even if connected to a live circuit whilst on continuity setting the tester will remain safe and undamaged
Live voltage warning alerts the operator when a circuit voltage over 25V exists when insulation testing
Safety lockout prevents the test from operating when the circuit voltage is > 50V
Continuity check - prevents a continuity test or buzzer test on a live circuit
3 phase safe - will not be damaged if connected across phases
Locking test button
Meets the requirement of BS EN 61010-1 for safe connection to a 440V Installation Category III supply (600V Phase to Earth)


Moving coil display

MIT320 benefits from the following additional features:

Backlit display and range selection ideal for low light environment
Selectable insulation alarm limit for fast go - no go testing
Selectable continuity alarm limit for fast go - no go testing
Resistance measurement range to 1 MΩ
SP3 switched probe supplied for one handed operation
SP1000 illuminated switched probe with ultra-bright LED light available separately

Model MIT300 MIT310 MIT310A MIT320
Insulation ranges        
250V Yes Yes Yes Yes
500V Yes Yes Yes Yes
1000V - Yes Yes Yes
Measuring range 10kΩ to 999MΩ 10kΩ to 999MΩ 10kΩ to 999MΩ 10kΩ to 999MΩ
Short Circuit Current 1.5mA nominal 1.5mA nominal 1.5mA nominal 1.5mA nominal
Test Current on Load
@ min pass values of insulation (BS7671, HD384 & IEC364)
1mA 1mA 1mA 1mA
Accuracy (@ 20°C) ±3%, ±2 digits ±3%, ±2 digits ±2.5% of scale length ±3%, ±2 digits
Insulation Limit Alarm 10kΩ to 1GΩ 10kΩ to 1GΩ 10kΩ to 1GΩ 10kΩ to 1GΩ
Measuring Range 0.01Ω to 99.9Ω 0.01Ω to 99.9Ω 0Ω to 50Ω 0.01Ω to 99.9Ω
Open Circuit Voltage 5V ±1V 5V ±1V 5V ±1V 5V ±1V
Short Circuit Current 205 mA ±5mA 205 mA ±5mA 205 mA ±5mA 205 mA ±5mA
Zero Offset Adjust 0 to 9Ω 0 to 9Ω 0 to 0.5Ω 0 to 9Ω
Buzzer Operates @ <5Ω <5Ω <5Ω 1 Ω to 20Ω adj.
Buzzer Response time <20ms <20ms <100ms <20ms
Resistance (MIT320)        
Measuring Range - - - 10Ω to 1MΩ
Open Circuit Voltage - - - 5V
Short Circuit Current - - - 200μA
Accuracy @ 20°C - - - ±3%, ±2 digits
up to 100kΩ
Measuring Range 0 to 600 Vac (50//60 Hz) or dc 0 to 600 Vac (50//60 Hz) or dc 0 to 600 Vac (50//60 Hz) or dc 0 to 600 Vac (50//60 Hz) or dc
Accuracy @ 20°C dc or ac (50//60 Hz)
±1% ±2 digits
dc or ac (50//60 Hz)
±1% ±2 digits
±2.5% of scale
length for 50//60 Hz
dc or ac (50//60 Hz)
±1% ±2 digits
Selection Guide
  MIT300 MIT310 MIT310A MIT320
Voltage warning      
Default voltmeter  
Back-lit display      
Back-lit selector      
Auto power down  
Switched test probe      


RS is an authorised Megger distributor. Purchased though RS this product is eligible for the Megger extended 3 Year warranty

Supplied with

instructions, 2 wire test lead set with crocodile clips, 8 x AA alkaline batteries, neck strap & carry case.

Attribute Value
Tester Type Insulation & Continuity Tester
Minimum Test Voltage 250V
Maximum Test Voltage 1000V dc
Maximum Insulation Resistance Measurement 999MΩ
Display Type LCD
Test Current 1mA
Battery Life 5000 5-Second Tests
Minimum Operating Temperature -10°C
Maximum Operating Temperature +60°C
Power Source Battery
Safety Category Level CAT III
Safety Category Voltage 600V
Safety Category CAT III 600 V
Width 148mm
Model Number p MIT310
Dimensions 203 x 148 x 78mm
Battery Type AA
Length 203mm
Height 78mm
Weight 980g
Plug Type Type A - North American/Japanese 2-blade, Type F - Schuko plug, Type G - British 3-pin, Type I - Australian plug, Type J - Swiss 3-pin
10 現貨庫存,可於3工作日發貨。
單價 個
HK$ 3,972.37
Per unit
1 +