L7 Miniature Circuit Breaker

Introducing our new Miniature circuit breaker, the L7 from XUCKY! It comes in 1P, 2P, 3P, 4P polarities and complies with IEC60898 - 1/GB/T10963.1 standards. L7 miniature circuit breaker offers overload and short - circuit protection. With CE, CB,certifications, it's reliable. The rated current ranges from 1A to 63A, and the rated voltage is 230/240V (1P) and 400/415V (2P - 4P). It has a high breaking capacity of 6/10kA, inflaming shell, and can be installed anywhere. With long electrical and mechanical lifespans, it's a great choice for various applications.

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Product Description

Technical Specifications

● Polarity: 1P, 2P, 3P, 4P;

● Compliant with standards: IEC60898- 1/GB/T10963.1;

● Product Function: Overload and Short Circuit Protection;

● Certification: CE,CB,SAA;

● Rated current In (A):1,2,4, 6, 10, 16, 20, 25, 32, 40, 50, 63;

● Rated voltage Ue: 230/240V (1P),400/415V(2P ~ 4P);

● Rated frequency (Hz): 50/60;

● Rated insulation voltage: 500V;

● Rated impulse withstand voltage (impact) kU: 4;

● Rated breaking capacity Icn (kA): 6/10kA;

● Protection level: IP20;

● Electrical lifespan (times): 10,000;

● Mechanical lifespan (times): 30,000;

● Breaking ability:

● Flame retardant: V0 level;

● Installation location: Any location;

● Applicable wire cross-section; Solid wire (mm): 1-35; Twisted wire (mm2): 1-25;

● Maximum wiring torque (N . m): 3.5;

● Environmental temperature (C ): -25 to+45, maximum humidity of 95%;

● Storage temperature (C):- 40- +75;

● Energy limit level: 3;

● Installation altitude (meters): not exceeding 2000.

Features

● Quick closing: ensuring reliable operation of impact loads and extending the life of circuit breakers;

● There is a clear opening and closing indicator window below the handle;

● The printed information on the surface of the product is long-lasting, clear, and not easy to erase;

● The emission of ionized gases is subject to the strictest restrictions: 45mm grid distance;

● This L7 miniature circuit breaker complies with Type B of IEC 60898-1 standard, The characteristics of the C-type and D-type trip curves.

Tripping Characteristic Curves

IEC 60898-1

L7 Miniature Circuit Breaker

Magnetic Release

When a circuit short circuit occurs, instantaneous tripping is achieved by a magnet with an iron core. According to the 1EC60898 standard, this L7 miniature circuit breaker can be divided into three types: B, C, and D.

	Test current	Tripping time	Applications
B Curve	3ln 5ln	0.1<t<45s(In≦ 32A) 0.1<T<90s(In>32A)	Type B is only applicable to active loads: -Electric heater-Water heater-Electric furmace
C Curve	5In 10ln	0.1<t<15s(In≦ 32A) 0.1<T<30s(In>32A)t<0.1s	Type C is suitable for ordinary loads: -Lamp -Power socket -Small power motor
D Curve	10ln 20In	0.1<t<4s(In≦ 32A) 0.1<T<8s(ln>32A) t<0.1s	Control and protect circuits with instantaneous surge current (large motors)

Thermal Release

● Once overload occurs in the circuit, the bimetallic strip of the circuit breaker will bend due to heat, causing the contacts to disconnect and resulting in thermal tripping;

● The IEC standard defines the tripping time range for different overload currents;

● The reference test environment temperature is 30 °C.