W9M Series Moulded Case Circuit Breaker (MCCB)

Overview

W9M series Molded Case Circuit Breakers are suitable for AC 50/60Hz, rated working voltage 500V (400/630A for 440V), rated current from15 to 630A of distribution network, for the distribution of power and protection circuits, power supply and electrical equipment from endangering overload and short circuit to improve the power supply reliability and continuity.

Compliance with standards

International standards:

●IEC 947-1: General (GB/T 14048.1);

●IEC 947-2: Circuit Breaker (GB/ T14048.2);

●IEC 947-4: Contactors and Motor Starters (GB/ T14048.4);

●IEC 947-5.1: Control Devices and Switches; Automatic Control Element(GB/ T14048.5);

National Standards:

●GB 14048.1 General;

●GB 14048.2 Circuit Breaker

Hot and Humid Measure

W9M Circuit Breakers and auxiliary devices T2 hot and humid conditions, comply with the following standards:

●IEC 68-2-30 At 45 degrees Celsius, 95% relative humidity (wet mat to heat and weather);

●IEC 68-2-11 Salt Spray Test

Isolation

All W9M Circuit Breakers are suitable for isolation,comply with the standard IEC 947-2:

●Contact isolated position in the "0" (OFF position);. 

●Unless the contact is fully open, operate slot can not be "OFF" position;. 

●Contacts are open state license before they can install a padlock;. 

●Installation of extended rotaLj handle does not change the reliability of the position indication system.

Isolation has assurance testing Guarantee:

●The reliability of mechanical contact is ensured by the position indication system;

●No leakage current;

●Ovedžoltage tolerance refers to the ability of withstanding voltage between its inlet and outlet.

Installation of class ll switchboards

●Circuit Breakers should be installed in all W9M class Il switchboards (according to IEC 664standard);

●No special installation operation, because W9M circuit breaker provides class Il panel and all insulation of internal circuits.

Main parameters

Frame Size
Model			W9M-100		W9ME-160/250		W9M-160/250		W9M-400		W9M-630
Number of poles			1,2,3,4		3		3,4		3.4		3,4
Control	Manual	With toggle	■		■		■		■		■
		With girect or  extended rotary hande	■		■		■		■		■
Connection	Fixed	Front connection	■		■		■		■		■
		Rear connection	-		■		■		■		■
	Plug in	Front connection	■		■		■		■		■
		Rear connection	-		■		■		■		■
Standards			1EC60947-2 and EN60947-2
Rated current(A)In 40C			100		160/250		160/250		400		630
Rated insulation voltage(V)-Ui			690		690		690		690		690
Rated Impulse withstand voltage(KV)Uimp			6		6		6		6		6
Rated operational voltage(V)Ue AC50/60Hz			500		500		500		500		500
Breaking capacity levels			N	H	N	H	N	H	N	H	N	H
Ultimate Breaking capacity (kArms) lcu	Ac50/ 60Hz	220/240V	50	65	50	85	50	85	85	100	85	100
		380/400V	25	35	25	36	25	36	36	50	36	50
		415V	25	30	25	36	25	36	36	50	36	50
		440V	20	20	20	25	20	25	36	50	36	50
		500V	10	10	8	10	8	10	20	36	20	36
Service breaking capacity (kArms) Ics	Ac50/ 60Hz	220/240V	25	30	25	43	25	43	43	50	43	50
		380/400V	13	17	13	18	13	18	18	25	18	25
		415V	7	7	13	18	13	18	18	25	18	25
		440V	5	5	10	13	10	13	18	25	18	25
		500V	3	3	4	5	4	5	10	18	10	18
Insulation			■		■		■		■		■
Utilization category			A		A		A		A		A
Durability (C-O cycles)	Mechanical		8500		10000		10000		6000		6000
	Electrical 440VIn		4000		5000		5000		1000		1000
Protection
Trip Unit			Thermal-Magnetic		Thermal-Magnetic		Thermal-Magnetic		Thermal-Magnetic		Thermal-Magnetic
Overload protection	Long time delay	lr(lnX···)	■		■		■		■		■
Short-citcuit protection	Short time delay	lsd(lnX···)	-		-		-		-		-
	Instantaneous	Ii(lnX···)	■		■		■		■		■
Earth-leakage protection	Witch earth-leakage protection circuit breaker		-		-		■		■		■
	Vigirex relay		■		■		■		■		■
Indication & control parts
Auxiliary contact (FZ)&Alarm contact (BJ)			■		■		■		■		■
Auxiliary alarm contact(FZ/BJ)			■		■		■		■		■
Shunt Release(FL)			■		■		■		■		■
Under Voltage Release (QY)			■		■		■		■		■
Modbus communication
Pm200 Meter	Electrical measurement (current,voltage,power,energy)		■		■		■		■		■
MC multi loop control unit	State		■		■		■		■		■
	Electrical data measurement (current,voltage)		■		■		■		■		■
Installation
Accessories	Terminal expansion extension		■		■		■		■		■
	Terminal shield		■		■		■		■		■
	Phase barrier		■		■		■		■		■
Breaking capacity levels			N/H		N/H		N/H		N/H		N/H

W9M-100~630 Thermal Magnetic Release

1.Thermal overload protection value

2.Short-circuit fault protection value