Bender RCMA420-D-2 B74043002 データシート

製品コード

B74043002

TDB404006en / Main catalogue part 4 – Residual current monitors, Residual current monitoring systems / 07.2010

4.2

Residual current monitor RCMA420

1 -

Supply voltage U

see ordering information

(6 A fuse recommended)

2 -

Connector for the external W20AB…W60AB series measuring

current transformer

3 -

Alarm relay K1: I

Δn1

(prewarning)

4 -

Alarm relay K2: alarm I

Δn2

(alarm)

5 -

Combined test and reset button "T/R"

short-time pressing (< 1.5 s) = RESET
long-time pressing (> 1.5 s) = TEST

Do not route the PE conductor through the measuring current
transformer!

Operating and display elements

Wiring diagram

1 -

Power On LED "ON" (green); lights when supply voltage is applied

and flashes in the event of system fault alarm respectively in the
event of CT malfunction.

2 -

Alarm LED "AL1" (yellow), prewarning; lights when the set re-

sponse value I

Δn1

is exceeded or flashes in the event of system

fault alarm respectively in the event of CT malfunction

3 -

Alarm LED "AL2" (yellow), alarm; lights when the set response

value I

Δn2

is exceeded or flashes in the event of system fault

alarm respectively in the event of CT malfunction

4 -

Multi functional LC display

5 -

Test button "T": to call up the self test.

Arrow up button: parameter change, to move up in the menu

6 -

Reset button "R": to delete saved alarms.

Down button: parameter change, to move down in the menu

7 -

"MENU" button: to call up the menu system.

Enter button: to confirm parameter change.
Press ESC: press the button > 1.5 seconds.