1250A 380V Case MCCB Thermal Magnetic Circuit Molded Breaker with Good Price

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: CM1
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: MCCB
• Poles Number: 3 Pole;4 Pole
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: CE, CCC
• Rated Current: 63,125,160,200,250,400,630,800,1250,1600A
• Dielectric Property: 2500,3000V
• Rated Current of Frame Size Inm: 63,160,200,250L
• Rated Current of The N Pole: =in
• Rated Insulation Voltage Ui: 400,500,690V
• Uimp Rated Impulse Withstand Voltage: 8000,10000V
• Transport Package: Export Packing
• Specification: 3P, 4P
• Trademark: GWIEC
• Origin: Wenzhou, Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 50000

Product Description

Application
 

RM1(CM1) series MCCB is mainly used in the circuit of AC 50/60Hz,rated insulating voltage 690V (630 type is 500V),rated working voltage up to 690V,and rated current from 6A-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:

Type	Rated current (A)	Number of Poles	Rated insulation voltage(V)	Rated operating voltage(V)	Arcing-Over Distance(mm)	Ultimated short Circuit Breaking Capacity(KA)	Service Short Circuit Breaking Capacity(KA)	Operation performance(time)
								ON	OFF
RM1-100D	12.5,16,20,25, 32,40, 50,63, 80, 100	3P/4P	950V	690V	0	18	18	1500	8500
RM1-100N						25	25
RM1-100H						70	70
RM1-160D	100,125,160,180, 200	3P/4P	950V	690V	0	25	25	1500	7000
RM1-160N						36	35
RM1-160H						70	70
RM1-250D	160,180,200,225, 250	3P/4P	950V	690V	0	25	25	1000	4000
RM1-250N						36	36
RM1-250H						70	70
RM1-400D	200,225,250,300, 215, 400	3P/4P	950V	690V	0	35	35	1000	4000
RM1-400N						45	45
RM1-400H						70	70
RM1-630D	400, 500, 630	3P/4P	950V	690V	0	75	75

 

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%