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IR425-D4-2 BENDER Insulation monitoring

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Products Name: IR425-D4-2 BENDER Insulation monitoring

PRODUCT DESCRIPTION

Brand: BENDER

Model number: IR425-D4-2

Colour:new                  

Warranty: 12 months

Lead Time:3-day working day   

Country of origin: USA Price: Please contact us         

Product weight:0.3kg

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Description:

Product description

The ISOMETER®s of the IR425 series monitor the insulation resistance of unearthed AC/DC 

control circuits (IT systems) 0…300 V. DC components existing in AC/DC systems do not 

influence the operating characteristics. An external supply voltage allows de-energised 

systems to be monitored too.

Application

• AC/DC control circuits in the industrial sector, mechanical engineering, power plants, 

elevators, automation systems etc.

• AC/DC control and auxiliary circuits in accordance with DIN EN 60204-1 

“Electrical equipment of machines”, IEC 60204-1, EN 60204-1

• AC/DC auxiliary circuits in accordance with DIN VDE 0100-725 (VDE 0100-725)

• Smaller AC/DC IT systems such as lighting systems

Function

The currently measured insulation resistance is indicated on the LC display. In this way 

any changes, for example when circuits are connected to the system, can be recognised 

easily. When the value falls below the preset response values, the response delay “ton” 

starts. Once the response delay “ton” has elapsed, the alarm relays “K1/K2” switch and the 

alarm LEDs “AL1/AL2” light up. Two separately adjustable response values/alarm relays 

allow a distinction to be made between prewarning and alarm. If the insulation resistance 

exceeds the release value (response value plus hysteresis), the alarm relays return to their 

initial position. Insulation faults are distinguished according to AC and DC faults (indication ±). 

In the event of insulation faults on the plus or minus conductor, the corresponding +/- symbol is 

activated on the display. If the fault memory is enabled, the alarm relays remain in the 

alarm state until the reset button is pressed or until the supply voltage is switched off. 

The device function can be tested using the test button. The parameterisation of the device 

can be carried out via the LC display or the function keys integrated in the front plate.

Connection monitoring

The connections to the system (L1/L2) and to earth (E/KE) are either automatical

IR425-D4-2  BENDER  Insulation monitoring

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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