MW5 intelligent universal circuit breaker-Mueller Electric (Group) Co., Ltd

The MW5 series intelligent universal circuit breaker (hereinafter referred to as circuit breaker) is suitable for AC 50/60Hz, with a rated voltage of 400V, 690/800V, 1140V, and a rated current of 200~7500A. It is mainly used in the distribution network to distribute power and protect lines and power equipment from overload, undervoltage, short circuit, single-phase grounding faults. The circuit breaker has a variety of intelligent protection functions, which can achieve selective protection and precise operation. Its technology can reach the advanced level of similar international products, and is equipped with a communication interface, which can perform "four remotes" to meet the requirements of the control center and automation system. Avoid unnecessary power outages and improve power supply reliability.

This series of products complies with IEC60947-2, GB/T14048.2 standards.

Model meaning

Codename	project	Codename	project
①	Company code: Shanghai Muller	④	Frame grade rated current: 1600A, 2500A, 4000A, 7500A
②	Universal circuit breaker	⑤	Controller model: See Protection Function Table
③	Design code	⑥	Number of poles: 3P, 4P

Main technical parameters

model		MW5-1600	MW5-2000/2500	MW5-4000	MW5-7500
Rated operating current In(A)		200,315,400, 500,630, 800,1000, 1250,1600	400,630,800, 1000,1250,1600, 2000,2500	2000,2500, 2900,3200, 3600,3900, 4000	5000,6300, 7500
Pole number		3P/4P	3P/4P	3P/4P	3P/4P
Rated limit short circuit breaking capability Icu(kA)	400V	50	85	120	140
	690V/800V	35	50	65	80
	1140V	20	30	50	55
Rated short circuit breaking capability Ics(kA)	400V	50	65	100	140
	690V/800V	35	50	65	80
	1140V	20	30	50	55
Rated short circuit switch-on capability Icm(kA)(peak)/cosΦ	400V	105	187	264	308
	690V/800V	73.5	105	143	176
	1140V	40	63	105	121
Rated short-term withstand current Icw	400V	50	65	100	140
	690V/800V	35	50	65	80
	1140V	20	30	50	55
Number of operation cycles per hour		20
Electrical life	400V	5000	5000	2500	2500
	690V/800V	3000	3000	1500	1500
	1140V	1000	1000	800	800
Mechanical life	Maintenance-free	15000	15000	8000	5000
Mechanical life	Maintenance	20000	20000	10000	10000

Protection function

Controller model	2L	M	3m	2h	3H
Overload long delay protection	■	■	■	■	■
Short circuit short delay protection	□	■	■	■	■
Short circuit instantaneous protection	■	■	■	■	■
Ground fault protection	□	■	■	■	■
Current imbalance protection	-	-	□	□	□
Functional test	■	■	■	■	■
Fault memory	■	■	■	■	■
Signal contact output	□	□	□	■	■
Hot Memory	■	■	■	■	■
Self-diagnosis	■	■	■	■	■
MCU working instructions	■	-	-	-	-
Current columnar display	■	-	-	-	-
Current measurement	-	■	■	■	■
MCR and cross-limit trip	□	□	□	□	□
Load monitoring	-	□	□	□	□
Fault status indication and numerical display	■	■	■	■	■
Voltage measurement	-	□	□	■	■
Power factor measurement	-	-	□	■	■
Power measurement	-	-	□	■	□
Electrical energy measurement	-	-	□	□	□
Communication function	-	-	-	■	■
Contact wear indication	-	-	□	■	■
Regional interlock	-	-	□	-	□
Harmonic measurement	-	-	□	-	□
Voltage protection	-	-	□	-	□
Number of operations records	-	-	□	■	■