MCB

ELB10K Series Miniature Circuit Breaker

Engineered for high-demand environments where circuit integrity is non-negotiable, the ELB10K series MCB delivers a robust 10kA breaking capacity — built specifically for B2B partners in commercial, light-industrial, and high-density distribution applications. Certified to EN/IEC 60898 standards, it offers reliable overload and short-circuit protection, with a 0.5–63A rated current range, B/C/D tripping curves, and versatile pole configurations. We support flexible order volumes, from large-scale project runs to small trial orders, to align with your business goals.

Product Details

Product Descriprion

The ELB10K series is purpose-built to handle severe fault conditions, making it ideal for high-current distribution boards, commercial facilities, and light-industrial machinery circuits. Its 10kA breaking capacity ensures dependable protection even under extreme short-circuit events, while the thermal-magnetic tripping mechanism adapts to diverse loads — from standard lighting circuits to motor-driven equipment.

A standout feature of the ELB10K is its dual-connection design, supporting both standard busbar and conductor connections for flexible installation. With energy-limiting Class 3 performance and 6000V impulse withstand voltage, it enhances safety and reduces arc energy in critical systems. The durable construction, including flame-retardant, heat-resistant plastics, ensures long-term reliability, backed by an 8,000-cycle electrical lifespan and 20,000-cycle mechanical endurance.

Designed with panel builders and OEM partners in mind, the ELB10K features a compact 17.5mm pole width for high-density DIN rail mounting, and visible contact indicators for quick, safe maintenance. We offer B2B-friendly customization options, including custom packaging, private labeling, and complete certification documentation, to support your brand and export requirements.

Application

Standard	Confirming to EN/IEC60898
Breaking capacity	10kA
Protection	Against overload and short circuit
Rated current In	0.5,1,2,3,4,6,10,13,16,20,25,32,40,50,63A
Rated voltage	1pole 230/400V AC 50/60Hz 2,3,4pole 400V AC 50/60Hz Rated insulation voltage Ui:500V Rated impulse withstand voltage Uimp:6000V Energy limiting class:3
Ambient temperature	-5°C to+40℃ pursuant to EN/IEC60898
Characteristic	Thermal operating limit:(1.13-1.45)×In Magnetic operating:B:(3-5)×In C:(5-10)×In D:(10-20)×In
Number of poles	1P,1P+N,2P,3P,3P+N and 4P
Type of trip	Thermal/magnetic release
Type of terminal	Lug type and Pin type
Terminal capacity	16mmflexible or 25mm²rigid up to 25A ratings 25mm2flexible or 35mm2 rigid for 32A to 63A ratings
Protection degree	IP20
Installation	Mounting on 35mm DIN rail
Width	17.5mm per pole

Curves

Overcurrent protecting characteristics

No	Rated current of release(A)	Initial state	Test current	Specified time	Result to be obtained	Remarks
1	1~63	cold state	1.13In	t≤1h	Non-trip	Setting current up to specified value steadily in 5S
2	1~63	upon the previous test	1.45In	t<1h	trip
3	In≤32	cold state	2.55In	1s<t<60s	trip
	In>32	cold state	2.55In	1s<t<120s	trip
	1~63	cold state	3In	t≤0.1s	Non-trip	B type
	1~63	cold state	5In	t<1.1s	trip	B type
	1~63	cold state	5In	t≤0.1s	Non-trip	C type
4	1~63	cold state	10In	t<1.1s	trip	C type
	1~63	cold state	10In	t≤0.1s	Non-trip	D type
	1~63	cold state	20In	t<1.1s	trip	D type

Endurance(operations)

Category	Operations	Operation frequency	Rated current
Electrical endurance	8000	240/h	0.5~32
Electrical endurance	8000	120/h	40~63
Mechanical endurance	20000	240/h	0.5~63