Good Price MCCB 1250A 4 Pole Molded Case Thermal Magnetic Circuit Breaker

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 2000mAmbient air temperature:1) Temperature: -5° C---+ 40° C2) 24 hours average air temperature shall not exceed + 35° C3) 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 3Protection Grade: IP20Circuit Breaker Specification:TypeRated current (A)Number of PolesRated 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)ONOFFRM1-100D12.5,16,20,25,32,40, 50,63,80, 1003P/4P950V690V0181815008500RM1-100N2525RM1-100H7070RM1-160D100,125,160,180, 2003P/4P 950V 690V0252515007000RM1-160N3635RM1-160H7070RM1-250D160,180,200,225,250 3P/4P 950V 690V0252510004000RM1-250N3636RM1-250H7070RM1-400D200,225,250,300,215, 4003P/4P 950V 690V0353510004000RM1-400N4545RM1-400H7070RM1-630D400, 500, 630 3P/4P 950V 690V07575   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