DAM1L-125 series Earth Leakage Protection Circuit Breaker(ELCB)
4
P 400V/415V
Earth Leakage
Circuit Breaker of Superior Quality
Certified with CE, CB, and SEMKO Standards
Introduction
DAM1L
series residual current (leakage) circuit breaker, herein referred to as 'the circuit breaker,' is an advanced series crafted using international standards and cutting-edge manufacturing technology.
Protected
Moulded Case
Type Circuit Breaker.
The rated insulation voltage for this series is 400V (for Inm <160A) and 690V (for Inm >250A), mainly used in AC 50Hz networks.
In power distribution networks with currents ranging from 10A to
5
00A and rated working voltages of 380V/400V, this device distributes electric energy and safeguards against overloads and short circuits of lines and equipment.
Under standard conditions
,
it can also be utilized for infrequent line switching.
T
his circuit breaker offers additional protections:
·Protection from fire hazards due to undetectable grounding fault current.
·Protection from increasing ground voltage risks due to insulation damage.
·Circuit breakers with a rated residual action current ≤30mA can ensure personal contact safety.
·Circuit breakers with rated currents up to
5
00A can be used for infrequent starts, operational disconnections, and motor overload and short circuit protection.
DAM1L
series circuit breakers support various electric and mechanical accessories, including tripping devices, auxiliary contacts, alarm contacts, and rotating handle mechanisms.
Widely used in construction, transportation, tunnels, residences, etc. The delay type is suitable for branch line distribution.
The adjustable type allows on-site adjustments of residual action currents or disconnection times.
Advantages
°
R
ange: 10A to
5
00A (AC)
°Compact, high breaking capacity, safe, and reliable.
°Adjustable magnetic setting (
0.8
-1 times) In.
°Provision of push-to-trip button.
°Separate main and arcing contacts.
°
Customizable Settings
The residual action current or disconnection time can be adjusted according to actual usage requirements, ensuring maximum efficiency and safety.
°
Superior Anti-Interference
Strong anti-interference capability ensures reliable performance even in challenging conditions.
Wide Range of Accessories
The working power of the residual current protection circuit for this series of circuit breakers is supplied by a multi-phase power supply. Early products used a single-phase power supply for the protection circuit, making the new design more versatile and reliable.
The
residual current protection circuit of the device can still operate normally when the operating power voltage is reduced to 50V (I n=30mA). This ensures continuous protection even under low voltage conditions.
This series of circuit breakers are classified into three types: B type (basic breaking capacity, Inm < 100), S type (standard breaking capacity), and H type (high breaking capacity, Inm > 160).
High breaking capacity (Inm > 160) makes them suitable for various applications and situations.
The main circuit of the circuit breaker can be connected in several ways:
-
Piston front connection
-
Terminal extension plate front connection
-
Screw connection at the rear of the piston plate
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