Application Scope

BF3-63 high breaking miniature circuit breaker has the characteristics of advanced and reasonable structure, reliable performance, high breaking capacity,beautiful and compact appearance.The shelland other parts are made of impact-resistant and highly flame-retardant materials. Suitable for AC 50Hz or 60Hz, rated voltage 230/40ov, rated current to 63A line. It is mainly used for the overload and short circuit protection of lighting, power distribution lines and equipment in various places such as industrial, commercial, high-rise office buildings and similar civil residential buildings. It can also be used as a circuit for infrequent operation and conversion under normal conditions. use. Conforms to standards: GB/T10963.1, IEC60898-1.

Model

Technical Data and Performance

Main specifications According to the rated current In: 6A,10A,16A,20A,25A,32A,40, 50A, 63A; According to the type of instantaneous release, it is divided into: B type (3~5)In, C type (5~10)In, D type (10-20)In; According to the number of poles:

1. Single pole circuit breaker;
2. Circuit breaker with two protection poles;
3. Circuit breaker with three protection poles;
4. Circuit breaker with four protection poles.

Other

Structural features Composed of plastic shell, operating mechanism, contact arc extinguishing system, tripping mechanism, etc.; The shell is made of special plastics with high flame resistance, high temperature resistance and high strength, which has strong impact resistance and light weight; The parts of the operating mechanism of the circuit breaker are made of high-strength plastic products, which obtain the lowest moment of inertia while ensuring sensitivity and reliability. Make the time from the start of the short circuit fault to the action of the tripping mechanism very short; The tripping mechanism is composed of two parts: a bimetallicoverload ant-time tripping mechanism and ashort-circuit transient electromagnetic mechanism; The contact arc extinguishing system uses a special arc guide angle and arc extinguishing chamber, which has significant current limiting characteristics; Applicable working conditions and working environment:

• The ambient temperature is-25`C~+60℃.When the ambient temperature is not the standard 30C,please refer to Table 6 for coefficient correction.

Ambient temperatureC	-30	-20	-10	0	10	20	30	40	50	60
Current correction factor	1.3	1.25	1.20	1.15	1.10	1.05	1.00	0.95	0.90	0.85

• Altitude: The altitude of the installation site does not exceed 2oo0m.
• Installation method: Install with TH35-7.5 steel installation rail.

With isolation function

Ordering instructions

Product model and name, such as BF3-63 miniature circuit breaker. Number of poles, such as 2P Instantaneous trip type and rated current, such as C20. Order quantity, such as 500 units. Order example: BF3-63 miniature circuit breaker, 2P, C20, 500 units.