1、 Scope of application

DZ47-125(NC）The 125A series high current miniature circuit breaker has the function of protecting against short-circuit overload of the circuit, and is suitable for lighting distribution systems and motor distribution systems. Beautiful and compact appearance, light weight, excellent and reliable performance, high breaking capacity, quick disconnection, rail installation, high combustion resistant impact resistant plastic for housing and components, long service life, mainly used for AC 50Hz or 60Hz, single pole rated voltage of 230, two, three, four pole 400V; rated current of 50A to 125A for overload and short circuit protection in circuits, and can also be used for infrequent switching of electrical devices and lighting circuits under normal circumstances. It can be equipped with accessories such as undervoltage release, shunt release, etc. It can also be used for isolating switches and as undervoltage protection and remote disconnection for power lines.
DZ47-125Meets the requirements of IEC60947-2, GB14048.2, and GB10963 standards.

2、 Model and specifications

3、 Structural features

DZ47-125 miniature circuit breakerIt can be installed in a card like manner using 35mm rails, with a small size, high breaking capacity, and visible contact closure indicators. It can be used as a circuit isolation device. Installation is carried out using TH35-7.5 standard steel guide rails.

7、 Main parameters and technical performance

Main types:
a. C-type is mainly used for lighting distribution protection (instantaneous trip 5-10ln)
b. D-type is mainly used for power industry distribution protection (instantaneous tripping 10~16ln)
The rated current of the circuit breaker is 50A, 63A, 80A, 100A, 125A
The number of poles of a circuit breaker is divided into: single pole, two pole, three pole, and four pole
This circuit breaker is an embedded installation (can be installed on the mounting rail)
The rated working voltage and related rated short-circuit breaking capacity of the circuit breaker are 10KA.
◆ Power frequency withstand voltage: After resistance to moisture and heat, the circuit breaker should be able to withstand a 2500V power frequency withstand voltage test for 1 minute without insulation flashover or breakdown.
Mechanical and electrical lifespan: The mechanical and electrical lifespan of the circuit breaker is 2000 times, of which the electrical lifespan is 6000 times.
◆ Moisture and heat resistance: Class 2 (relative humidity of 95% at a temperature of 55 degrees Celsius)
◆ Wiring: Using clamp terminals, the fixed cable section can reach up to 50mm ²

Rated current (A)	Polar number (P)	Rated voltage (V)	Rated short-circuit breaking capacity
			Expected current of test circuit (A)	Test line power factor
50,63,80,100,125	1	230/400	10000	0.45~0.50
	2,3,4	230/400	10000	0.20~0.25
	2,3,4,	400	10000	0.45~0.50

test current	Rated current	appointed time	Initial state	Expected results
1.05ln	≤63A	t≤1h	cold state	Do not release
	＞63A	t≤2h		Do not release
1.30ln	≤63A	t≤1h	Hot state	trip
	＞63A	t≤2h		trip
2.0ln	all values	1~360s	cold state	trip
5ln (Type C), 10ln (Type D)	all values	t≤0.1s	cold state	Do not release
10ln (Type C), 20ln (Type D)	all values	t＜0.1s		trip

8、 Appearance and installation dimensions

9、 Ordering Notice

When placing an order, please indicate the following points:
Product model and name: such as DZ47-125 miniature circuit breaker/DZ47-125 type circuit breaker.
Instantaneous tripping rated current: such as 100A.
Number of circuit breaker poles: such as 4P.
Order quantity: such as 36 pieces.
Example of ordering:DZ47-125 Circuit Breaker， 1P，125A， 855 pieces.