SJK47-63 Miniature Circuit Breaker MCB DPN

SJK47-63 Miniature Circuit Breaker (MCB) is a premium-grade circuit protection device, with the SJK47-63 MCB featuring ultra-high breaking capacity and flame-retardant housing. This SJK47-63 Miniature Circuit Breaker is specifically engineered for 220/380V AC systems (50/60Hz, up to 63A), providing reliable overload and short-circuit protection. The SJK47-63 MCB's robust construction meets GB10963.1, IEC60898-1 and CCC standards, making this miniature circuit breaker ideal for residential, commercial and industrial applications. With its compact design, the SJK47-63 Miniature Circuit Breaker ensures easy installation while delivering superior performance. Choose the SJK47-63 MCB for guaranteed safety and durability in all electrical distribution systems.

product details

Type Designation

1	Circuit Breaker Model Number
2	Design Code
3	Frame Size Rated Current
4	Number of Poles (Arabic numerals, Neutral pole markedas N)
5	Instantaneous Release Type (C, D)
6	Rated Current Value

product Display

Technical Parameters

Mechanical and electrical lifespan (Ref.Table 2)									TABLE 2
		Times		Operating frequency (t/h)				Rated current (A)
Electrical lifespan		4000		240				6~32
				120				40~63
mechanical life		20000		240				6~63
Overcurrent Protection Characteristics at 30°C~35°C (Ref. Table 3)									TABLE 3
No.	Rated Current of Release (A)		Initial State		Test Current	Specified Time	Expected Result		Notes
1	6~63		Cold State		1.13In	t≤1h In≤63A	No Tripping
2	6~63		Immediately after previous test post-test condition		1.45ln	t<1h In≤63A	Tripping		Current Rises Steadily to Specified Value Within 5s
3	In≤32		Cold State		2.55ln	1s<t<60s	Tripping
	In>32		Cold State		2.55In	1s<t<120s	Tripping
4	6~63		Cold State		3In 5ln 5In 10ln 10ln 14ln	t≤0.1s t<0.1s	No Tripping Tripping		B Type
						t≤0.1s t<0.1s	No Tripping Tripping		C Type
						t≤0.1s t<0.1s	No Tripping Tripping		D Type

Wiring: For conductors ≤25mm² (Ref. Table 4),Connection method: Screw-clamp terminals, Torque 2N·m		Tabel 4
Rated Current In (A)	Nominal Cross-Sectional Area of Copper Conductor (mm²)
6	1
10	1.5
16, 20	2.5
25	4
32	6
40, 50	10
63	16

Trip Characteristic Curve

◆Power Consumption per Pole (Ref. Table 5)	Tabel 5
Rated Current In (A)	Maximum Power Consumption per Pole (W)
6~10	2
16~32	3.5
40~63	5

Ambient Temperature (°C)	-30	-20	-10	0	10	20	30	40	50	60
Current Correction Factor	1.30	1.25	1.20	1.15	1.10	1.05	1.00	0.95	0.90	0.85

Outline and Installation Dimensions

Left Picture: Istallation Dimensions

Right Picture: TH35-7.5 Mounting Rail Dimensions