1. Application
GSM8-80 series of Motor Protection Circuit Breaker are mainly used in the electrical circuits with AC frequency 50Hz/60Hz, rated voltage up to 415V and rated current up to 25A～80A to conduct the protection functions of the over-load, short-circuit, non-frequent start-up and while-running breaking for the three-phase motors, also can be used as isolators.

This product complies with the demands of the following standards:

GB14048.2 Low-voltage Switchgear and control gear low-voltage breaker

GB14048.3 low-voltage switchgear and control gear Switchgear, Isolation, Separated Switch And Fuse Combination Apparatus

GB14048.4 Low-voltage switchgear and control gear

Low-voltage mechanical breaker and motor starter
Through the CCC certification
3. Main technical parameters

Current No.	In(A) Rated work current	Setting current range	Rated insulation voltage	Uimp Rated impulse with stand voltage	Inm Frame rated current	Icu/Ics(KA) Ue: 415V	Life		Operating frequency h-1
							Electrify	Non- electrify
40	40	25～40	690V	6KV	80A	35/18	10000	15000	120
63	63	40～63				35/18
80	80	56～80				15/8

Environment temperature : -5℃～+40℃

Elevation: ≤ 2000m

Environment condition: There must be not any explosive medium and there must be not any gas which would corrode metal or any conducting dust which would destroy the insulation.

Installing categories: Class Ⅲ.

Pollution protection: Grade 3

Installation condition

a. The tilt gradient between installation face and vertical face should ≤ 30°

b. Installing condition: mounted by TH35-7.5 standard rail track.

C. Products should be used in no significant impact and vibration place.