SJK47LE-125 Residual Current Circuit Breaker (RCCB)

The SJK47LE-125 RCCB is a high-performance residual current circuit breaker compliant with GB/T 14048.2 & IEC60947-2, designed for AC 50/60Hz, 230V/400V circuits up to 125A. It provides reliable overload, short-circuit, and leakage protection (IΔn: 30mA-300mA) with configurable pole options (1P+N, 2P, 3P, 3P+N, 4P). Featuring 500V insulation, IP20 protection, and Pollution Degree 3, this RCCB operates in -5°C to +40°C environments. Compatible with AX-1 auxiliary contacts, it ensures safety in residential, commercial, and industrial applications while supporting infrequent switching.

product details

Type Designation

1	Manufacturer Code
2	Design Serial Number
3	With Residual Current Protection (Earth Leakage Protection)
4	Rated Current Collection (125A)
5	Operational Current
6	Number of Poles

product Display

SJK47LE-125 Residual Current Circuit Breaker RCCB (2)

SJK47LE-125 Residual Current Circuit Breaker RCCB (1)

SJK47LE-125 Residual Current Circuit Breaker RCCB (3)

Technical Parameters

Rated Current (In)(A)	63,100,125
Poles	1P+N,2P,3P,3P+N,4P
Rated Voltage (Ue)	AC 230/400~240/415V
Rated Insulation Voltage	500V
Rated Frequency	50/60Hz
Rated operational residual current (In)	0.03A,0.05A,0.1A,0.3A
Breaking Capacity	10kA
Pollution Degree	Level3
Protection Degree	IP20
Installation Category	Category lll
Standard	IEC60947.2，GB/T 14048.2
Ambient Air Temperature	-5℃~ + 40℃,with the average temperature within 24 hours not exceeding 35℃.

Outline and Installation Dimensions

Number of poles	1P+N	2P	3P	3P+N	4P
L (MM)	54⁰_-0.74	81⁰_-0.87	108⁰_-1.40	108⁰_-1.40	135⁰_-1.60
H (MM)	73.5⁰_-1.20	78.5⁰_-1.20	78.5⁰_-1.20	78.5⁰_-1.20	78.5⁰_-1.20

Installation Diagram: SJK47LE-125-4

Mounting Rail: TH35-7.5 Type

Disassembly diagram

Wiring schematic diagram

Applicable to the connection of copper conductors of 50mm² and below. Select the cross-sectional area of copper conductors according to the following table.

Rated current In(A)	Cross-sectional area of copper conductor (mm²)
63	16
80	25
100	35
125	50

Status Indication： SJK47LE-125-8

Ordering Instructions

Order Specifications Required from Customers:
a) Product Name:Model Number.Rated Current;
b) Rated Current.Number of Poles;
c) Minimum order Quantity.
Example:
Order DZ47LE-125 2-pole circuit breaker, Type D, rated current 100A, quantity 500 units.
Should be written as: DZ47LE-125/2P, D100A, 500 units.