CM1 63a electrical mccb moulded case circuit breaker ratings details 2018-06-13T03:57:00+00:00

Project Description

CM1 mccb circuit breaker

CM1 63a electrical mccb moulded case circuit breaker ratings details

CM1 63a electrical mccb moulded case circuit breaker ratings details is a new type product ,developed and manufactured by adopting international advanced technology.It applies with rated insulation voltage 800V and for circuit of AC 50Hz, rated operation voltage AC 400V or below and rated operation current up to 1600A for infrequent changing over and starting of the motors.

CM1 mccb technical details

Type Rated current (A) Poles Rated insulating voltage (V) Rated operating voltage (V) Arcing over distance (MM) Ultimate short circuit breaking capacity (KA) Service short circuit breaking capacity (KA)
CM1-63L (6),10,16,22,25,32,40,50,63 3,4 500V 400V 0 25 18
CM1-60M 0 50 35
CM1-100L (10),16,20,25,32,40,50,63,80,100 800V 0(≤50) 35 22
CM1-100M 0(≤50) 50 35
CM1-100H 0(≤50) 85 50
CM1-225L 100,125,160,180,200,225 ≤50 35 22
CM1-225M ≤50 50 35
CM1-225H ≤50 85 50
CM1-400L 225,250,315,350,400 ≤50 50 35
CM1-400M ≤100 65 42
CM1-630L 400 ≤100 50 35
CM1-630M 500 ≤100 65 42
CM1-630H 630 ≤100 100 65
CM1-800M 630,700,800 ≤100 75 50
CM1-800H ≤100 100 65

The thermodynamic release of a moulded circuit breaker provides the feature of inverse time-delay, while the magnetic release is the instantaneous operation as shown on table 2 (distribution circuit breaker ) and table 2(motor protection circuit breaker )

Table 2
Rated current of release (A) Thermodynamic release (ambient temp)
1.05 In (cold state) 1.30 In (heat state) O[erational current of magnetic release (A)
Inoperative time (h) Inoperative time (h)
10≤In≤63 ≥1 <1 10In±20%
63≤In≤100 ≥2 <2 5In±20%
100≤In≤800 ≥2 <2 10In±22%
Table 3
Rated current of release (A) Thermodynamic release (ambient temp)
1.05 In (cold state) 1.2In (cold state) 1.30 In (heat state) 7.2In (cold state) O[erational current of magnetic release (A)
Inoperative time (h) Inoperative time (h) Inoperative time (h) Inoperative time (h)
10≤In≤225 ≥2 <2 ≤4 min 4s<Tp≤10s 12In±20%
225≤In≤630 ≤8 min 6s<Tp≤20s

CM1 mccb ratings installation drawing

CM1 electric circuit breaker drawing
CM1 mccb circuit breaker dimension
CM1 circuit breaker outline installation
CM1 mccb breaker board wiring

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