NXMLE series residual current operated circuit breaker

Function and use

The main function of the residual current operated circuit breaker series is to provide indirect contact protection against fatal personal electric shock, and to provide protection against electrical fires caused by ground fault current, such as insulation damage, etc. It also provides protection against overload, short circuit and under-voltage of the line, and can also be used for infrequent switching of the line.

Detailed description

Parameters:
Operating breaking capacity: Ics=25/36/50
Ultimate breaking capacity: Icu=36/50/70

Advantages/core functions:
01 Comprehensive functions
Can carry out leakage protection, overload long delay, short circuit short delay, short circuit instantaneous and other protection to meet customers' various protection needs
02 Safe and reliable
Double protection design of upper cover and middle cover, customers can use it in various complex environments
03 Compact and convenient
The product is smaller than competing products, easy to layout, saving installation space

Detailed parameters

< td>40000 td>

Parameter classification	Parameter items	Parameter value
Load level rated current Inm(A)	125	10,16,20,25,32,40,50,63,80,100,125
	160(W125)	160:25,32,40,50,63,80, 100,125,160 W125:25,32,40,50,63,80,100,125
< /td>	250	125,160,180,200,225,250
Rated current In(A), 40℃
Rated insulation voltage Ui(V)		800
Rated impulse withstand voltage Uimp(kV)		8
Rated operating voltage Ue(V), AC 50/60Hz		230/240 (2P applicable), 400/415
Residual current type	AC Type, A type
	Adjustable, non-delay type	(2P, 3P+N, 4P) Single gear not adjustable, non-delay type 30/50/100/200/300/500 (2P, 3P+N, 4P) Single gear is not adjustable, delay type 50/100/200/300/500
	Adjustable, delay type	A: 30.50.100.200 C: 100.200.300.500 B: 50.100.200.300 C: 100.200.300.500
Rated residual current value IΔn (mA)
Rated residual non-operating current IΔno(mA)		0.5IΔn
Non-delay type 5IΔn Maximum breaking time (s)		≤ 0.04
Delay type 21IΔn Limit non-driving time (s) is not adjustable		0.1/0.2/0.3, optional
Delay type 21IΔn Maximum breaking time (s)		0.3/0.4/0.5, Optional
Breaking capacity code	1P+N	S
	2P	-
	3P	■
	3P+N	■
	4P	■
Rated limit short-circuit breaking capacity Icu(kA), (AC230V/240V)(1P+N, 2P)/(AC400V//415V)(3P,3P+N,4P)		36/25 -/36 50/35 /-50 50/35 /-50
Rated operating short-circuit breaking capacity Ics(kA), (AC230V/240V)(1P+N, 2P)/(AC400V//415V)(3P,3P+N,4P)		18/13 -/18 30/18 /-25 30/18 /-25
Comply with standards		IEC/EN 60947-2, GB/T 14048.2
Use category		A
Isolation function (B, C Applicable to type products)		■
Applicable working environment temperature
Flashover distance (mm)		≤ 50
Mechanical life (times)	Maintenance-free	20000
	Maintenance required
Electrical life (times)		10000
Accessories	Auxiliary contacts (1 open 1 closed)	■
	Auxiliary contacts (2 open 2 Closed)	-
	Alarm contact	■
	Auxiliary contact Alarm contact	■
	Shunt release	■
	Undervoltage release	■
	Residual current alarm non-tripping module	-
	Manual operating mechanism	■
	Electric operating mechanism	■
	Rear panel wiring	■
	Plug-in type	■
	Extended terminal connection row	■
	Phase barrier	■
Outline dimensions (mm) Width (W) × Height (H) × Depth (D)	Narrow (1P+N/2P/3P/3P+N/4P)	/-/78/103/103
		63/63/90/120/120
		78/78/105/140/140
	High	156
	Deep (S Type/H type)	71/81
		75.5/91
		77/80