BENDER RCM420-D-2

The CT connections are continuously monitored. In the event of a fault, the alarm relays 

K1/K2 switch without delay, the alarm LEDs AL1/AL2/ON flash. After eliminating the fault, 

the alarm relays return to their initial position either automatically or by pressing the reset 

button (fault memory behaviour).

 AC and pulsed DC sensitive residual 

current monitor Type A according to 

DIN EN 62020

• r.m.s. value measurement (AC)

• Two separately adjustable response values

• Frequency range 42…2000 Hz

• Start-up delay, response delay and delay 

on release

• Restart function

• Digital measured value display via 

LC display

• Measured value memory for operating 

value

• CT connection monitoring

• LEDs: Power On, Alarm 1, Alarm 2

• Internal/external test/reset button

• Two separate alarm relays 

(one changeover contact each)

• N/O or N/C operation and fault memory 

behaviour selectable

• Password protection for device setting

• Device self monitoring

• Sealable transparent cover

• Two-module enclosure (36 mm)

• RoHS compliant 

• Push-wire terminal 

(two terminals per connection)

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