HA15(DW15HH) series universal circuit breakerDetailed product description：

The HA15 (DW15HH) series universal circuit breaker is an updated product jointly designed by the Shanghai Electric Science Research Institute of the Ministry of Machinery and relevant domestic enterprises.
The basic parameters and technical performance of this product comply with the national standards GB14048.2-1994 "Low voltage switchgear and control equipment - Low voltage circuit breakers" and IEC947-2 "Low voltage switchgear and control equipment - Part 2: Circuit breakers". The HA15 (DW15HH) series universal circuit breaker is a secondary development product of DW15 circuit breakers. This product has a small size, high short-circuit breaking capacity, and good protection performance, meeting the new requirements of China's low-voltage distribution network.

The HA15 (DW15HH) series universal circuit breaker is an updated product jointly designed by the Shanghai Electric Science Research Institute of the Ministry of Machinery and relevant domestic enterprises. The basic parameters and technical performance of this product comply with the national standards GB14048.2-1994 "Low voltage switchgear and control equipment - Low voltage circuit breakers" and IEC947-2 "Low voltage switchgear and control equipment - Part 2: Circuit breakers". The HA15 (DW15HH) series universal circuit breaker is a secondary development product of DW15 circuit breakers. This product has a small size, high short-circuit breaking capacity, and good protection performance, meeting the new requirements of China's low-voltage distribution network.

Usage and classification
2.1 Purpose
The DW15HH series universal circuit breaker has a rated current of 630A to 4000A and a rated working voltage of AC 400V, 50HZ. Mainly used in distribution networks to distribute electrical energy, protect lines and power equipment from the hazards of overload, undervoltage, short circuit, single-phase grounding and other faults. Under normal conditions, it can also be used for infrequent switching of lines. It can achieve selective protection and precise action to avoid unnecessary power outages, improving the reliability of power supply.
2.2 Classification
1. Rated current meter of circuit breaker

Inm(A)	two thousand	four thousand
In(A)	630, 800, 1000, 1600, 2000	2000, 2500, 3200, 4000

2. Table of rated working voltage, rated short-circuit breaking capacity, arcing distance and incoming line method of circuit breaker

Inm(A)	Ue=400V			flying arc distance	incoming line method
Icu	Isc	Icw 1-second delay 0.4s o-oc
two thousand	50(cosΦ=0.25)	40(cosΦ=0.25)	40(cosΦ=0.25)	50mm	Up line or bottom entry
four thousand	80(cosΦ=0.25)	60(cosΦ=0.25)	60(cosΦ=0.25)
Note: When Inm=2000A and Ue=690V, the rated ultimate short-circuit breaking capacity Icu=30KA, Cos Φ=0.25, the arcing distance and incoming line method are the same as above. If the user needs a circuit breaker with Ue=690, they can negotiate with us.

HA15 (DW15HH) series universal circuit breaker