DAM1L-125 series Earth Leakage protection circuit breaker(ELCB)
4
P 400V/415V
Earth leakage
circuit breaker high quality
with CE,CB,SEMKO certificate
Introduction
DAM1L
series residual current (leakage) circuit breaker (hereinafter referred to as circuit breaker) is a new series of residual current (leakage) successfully developed by using international standard design and advanced manufacturing technology.
Protected
moulded case
type circuit breaker.
The rated insulation voltage of circuit breakers of this series is 400V (Inm is less than 160A) and 690V (Inm is more than 250A), which is mainly used for AC 50Hz and rated
In a power distribution network with a current of 10A~
5
00A and a rated working voltage of 380V/400V, it is used to distribute electric energy and protect the overload and short circuit of lines and power equipment.
Under normal conditions
,
It can also be used for infrequent switching of lines.
T
his circuit breaker also has the following protection:
·It provides protection for fire hazards caused by grounding fault current that cannot be detected due to overcurrent protection.
·Provide protection against the danger of increasing ground voltage due to insulation damage;
·Circuit breakers with rated residual action current not exceeding 30mA can be used for personal contact protection.
·Circuit breakers with rated current of
5
00A and below can also be used for infrequent start, break off during operation and overload and short circuit protection of squirrel cage motors.
DAM1L
series circuit breakers can be equipped with electric accessories and mechanical accessories for various purposes, such as separately excited tripping device, auxiliary contact, alarm contact and rotating handle operating mechanism.
This series of circuit breakers are widely used in construction, transportation, tunnel, residence, etc. The delay type in this series of circuit breakers is used for branch lines
distribution of roads; Adjustable type is used to adjust the residual action current or disconnection time on site.
Advantages
°
R
ange:10A to
5
00A(AC)
°Integral structure, small volume, high breaking capacity, safe and reliable.
°Adjustable magnetic setting(
0.8
-1 times) In.
°Push to trip button provision.
°Separate main and arcing contacts.
Indoor/Outdoor usage capacity.
Compatibility with diverse environments.
This circuit breaker allows the residual action current or disconnection time to be finely adjusted according to actual usage requirements.
Reliability under various conditions.
Superior durability and strength.
Features strong anti-interference capabilities, ensuring stable performance.
Wide array of accessories available for versatile applications.
The working power for the residual current protection circuit in this series of circuit breakers is supplied by a multi-phase power supply, unlike earlier models which relied on a single-phase power supply.
Efficient operation.
The residual current protection circuit functions reliably even when the operating power voltage drops to 50V, maintaining normal performance. (In coherence n=30mA)
This series of circuit breakers is categorized into B type (basic breaking capacity, Inm <100), S type (standard breaking capacity), and H type (high score breaking capacity, Inm >160), suitable for various applications.
With a high score breaking capacity (Inm > 160), these circuit breakers are adaptable for use in diverse situations.
The main circuit of the circuit breaker can be connected in several configurations:
-
Front connection using piston.
-
Front connection with terminal extension plate.
-
Rear connection utilizing screw at the piston plate.
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