CQM3E Electronic Moulded Case circuit Breaker

1Application

CQM3 Electronic molded case circuit breakers have the functions of long overload delay reverse time limit, short delay reverse time limit, short circuit delay fixed time limit, short circuit instantaneous and under-voltage protection. The protection characteristics of circuit breaker are complete and accurate. It can improve the reliability of power supply and avoid unnecessary blackouts. Only 1, 3, 5 power lines, 2, 4, 6 load lines are allowed.

Features

·Compact structure

·Electric ratings: AC 400V ,50Hz/60Hz

·Up to 800A current rating

·Mounting mode: Vertical and horizontal

·Compliant standard: IEC/EN60947-2. 

·High interruption, short arc (partial zero arc) and anti-vibration.

2 Selection

Electronic type

Frame size rated current code

Poles code  3 (3pole) /4 (4 pole)

Internal Annex Code

Utilization Code: No Code/Distribution/Motor Protection

Installation connection code:

Blank:Front connection

R:Rear connection

PF:Plug- in board front connection 

PR:Plug-in board rear connection

DF:Draw-out board front connection

DR:Draw-out board rear connection

Operation code:

Blank:Direct operation

Z:Operation with rotary handle

P:Motor driven operation

Release type code:

Blank:General type

TH:Humidity-heat resistant  type

10A~800A  Rated current

4 Dimensions and installation sizes（unit :mm）