Catalogue number:
AN
□□□□□□
AS
Air Circuit Breaker 1600-5000 70-85kA
AS
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Trip Alarm Contact (AL)
When a circuit breaker is tripped by OCR (Over current Relay) which operates against the
fault current, the Trip Alarm switch provides the information regarding the trip of circuit
breaker by sending an electrical signal from the mechanical indicator on front cover of main
circuit breaker or internal auxiliary switch (Installed at the inside of circuit breaker).
When a circuit breaker tripped by fault current, a mechanical trip indicator (MRB, Manual
Reset Button) pops out from the front cover and the switch (AL) outputs the fault location.
MRB and AL can be operated only when tripping by an OCR.
To re-close a circuit breaker after a trip, press MRB to reset it for closing.
Trip alarm contact and MRB (Manual reset bottom) need to be purchased together
.
Resistive load
lamp load
Inductive load (A) Motor load
8 VDC
11
3
6
3
30 VDC
10
3
6
3
125 VDC
0.6
0.1
0.6
0.1
250 VDC
0.3
0.05
0.3
0.05
250 VAC
11
1.5
6
2
MAX. 24A
Rated voltage
(V)
Non-inductive load (A)
Inductive load (A)
Inrush current
Electrical characteristic of trip alarm contact
Manual Reset Button
It is a function which resets a circuit breaker manually when a circuit breaker is tripped by OCR.
MRB can be operated only by OCR .
N.A.W. Controls Pty. Ltd.
Telephone: (03) 9464 6555
www.nawcontrols.com.au
LS ACB AS & AN range
June 2020
