Cm1-125/3300 3p 690V 125A Molded Case Circuit Breaker MCCB

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: CM1-125/3300
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Rail Mounting
• Structure: MCCB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: ISO9001-2000, CE
• Current Range: up to 125A
• OEM: Available
• Rated Voltage: up to 690V
• Phase: 3
• Transport Package: Carton
• Specification: 45*23*33
• Trademark: OEM
• Origin: China
• HS Code: 8536200000
• Package Size: 45.00cm * 23.00cm * 33.00cm
• Package Gross Weight: 22.000kg

Product Description

Product Description

Application
 

RM1(CM1) series MCCB is mainly used in the circuit of AC 50/60Hz,rated insulating voltage 690V ,rated working voltage up to 690V,and rated current from 10A-800A in distribution line for distributing power,protecting line,overload,short-circuit and under-voltage protection. It also can be used for infrequently starting of motor for overload,short-circuit and under-voltage protections.

It is small size,high breaking capacity and short arcing (without arcing).

The products can be installed vertically and horizontally.And it have front connection,rear connection and plug-in connection.
The product meets the standards of GB14048.2 and IEC60947-2.

Normal Working Condition

 

Altitude: not exceed 2000m

Ambient air temperature:

1) Temperature: -5° C---+ 40° C

2) 24 hours average air temperature shall not exceed + 35° C

3) If the air temperature is more than + 40° C, it need remark the special ordering.

Air conditions:

At mounting site,relative humidity not exceed 50% at the max temperature of +40° C,higher relative humidity is allowable under lower temperature.For example,RH could be 90% at +20° C,special measures should be taken to occurrence of dews.

Pollution grade:Grade 3

Protection Grade: IP20

Circuit Breaker Specification:
 

Frame class Rated current InmA	Conventional Rated heat current Ith A	Rated current A	Short circuit breaking capacity class	Short circuit breaking capacity kA(Effective value) Icu/Ics
				AC 400V	AC 690V
63	63	10,16,20,25,32,40,50,63	L	25/18	/
			M	50/35	/
			H	85/50	/
125(100)	125(100)	16,20,25,32,40,50,63,80,100,125	C	25/18	10/5
			L	35/22	10/5
			M	50/35	20/10
			H	80/50	20/10
250(225)	250(225)	100,125,140,160,180,200,225,250	C	25/18	10/5
			L	35/22	10/5
			M	50/35	20/10
			H	80/50	20/10
400	400	225,250,315,350,400	L	50/35	10/5
			M	65/42	20/10
			H	100/65	20/10
630	630	400,500,630	L	50/35	10/5
			M	65/42	20/10
			H	100/65	20/10
800	800	630,700,800	M	65/50	30/15
			H	100/65

 

 

Circuit Breaker Tripping Characteristics:

Rated current of release (A)	Thermodynamic release(ambient temp+40)				Operational current of magneticrelease (A)
	1.05In(cold state)  inoperative time (h)		1.I3n 0h(eat state)inoperative time(h)
In<63	≥1		<1		10In±20%
63<In<100	≥2		<2		10In±20%
100<In<630	≥2		<2		5-10In±20%
Rated current of release (A)	Thermodynamic release(ambient temp+40ºC)
	1.0In (cold state) inoperative time	1.20In (heat state) operative time	1.50In (heat state) operative time	7.2In (heat state) operative time	Operational current of magnetic release (A)
12.5<In<400	≥2h	<2h	<4min	2S<Tp<10s	12In±20%

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