2P 125A Miniature Circuit Breakers

Zhejiang Galaxy Fuse Co., Ltd.,operating under the name Yinrong,produces one type of miniature circuit breakers known as YRM9-125DC.This 2P 125A miniature circuit breakers specifically engineered to protect low-voltage electrical systems from short-circuit events with expected fault currents and overloads of a lower magnitude.Additionally, it can serve as an isolation device for maintenance purposes. The 2P 125A miniature circuit breakers are widely used in DC systems, notably in the communication and photovoltaic sectors. The rated current ranges from 6A to 63A, while the rated voltage spans from 250VDC to 1000VDC.

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Product Description

Zhejiang Galaxy Fuse Co., Ltd. is a Chinese company specializing in the production and manufacturing of the 2P 125A miniature circuit breaker. This miniature circuit breaker serves functions such as overload protection, short circuit protection, and isolation, making it widely applicable in DC systems such as communication and photovoltaic industry.The 2P 125A miniature circuit breakers comply with international standards: IEC 60947-2, GB/T14048.2.It features dual bus-bar wiring, transparent labeling, and a maximum wire connection of 25mm².

The rated voltage of this 2P 125A miniature circuit breaker is 1P 250VDC, 2P 500VDC, 3P 750VDC, 4P 1000VDC, with currents ranging from 80A to 125A and a breaking capacity of 10kA. The mechanical lifespan is 20,000 cycles and the installation method is DIN Rail.

Rated Voltage

DC 250V/500V/750V/1000V

Rated Current

80-125A

Breaking Capacity

Pole

1P/2P/3P/4P

Standard/Compliance

-IEC 60947-2

-GB/T14048.2

Applications

- Communication industry

- Solar photovoltaic system

Country of Origin

People’s Republic of China

Parameters

Electrical Characteristics
Poles	Rated Current(In)	Rated Voltage(Ue)
Poles	Rated Current(In)	1P	2P	3P	4P
1P/2P/3P/4P	80-125A	250VDC	500VDC	500VDC	1000VDC

Standard Time-Current

Test	DC test	Starting State	Trip/no-trip	Expected outcome	Remark
a	1.05In	Cold state	t≥1h(In≤63A) t≥2h(In＞63A)	Does not trip
b	1.3In	Immediately after a test	t＜2h(In＞63A) t＜1h(In≤63A)	Trip	The current rises steadily to the specified value with 5S
c	8In	Cold state	t≥0.2s	Does not trip	Close the auxiliary switch power on
c	12In	Cold state	t＜0.2s	Trip	Close the auxiliary switch power on

Wiring Diagram

Dimension

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