Audited Supplier
DAM1-125
Low Voltage Circuit Breakers
Manual Type
High-Speed Circuit Breaker
Arc Chamber
Fixed
MCCB
3p, 4p
Circuit Breaker
Overcurrent Protection
ISO9001-2000, CE, CB, CCC, Kema, Asta, Semko, RoHS
1000V
400/415V
120X76X70mm
CDADA, OEM, ODM
Carton
12.5, 16, 20, 25, 32, 40, 50, 70, 80, 100, 125A
Shanghai, China
8536200000
Product Description
Introduction
The DAM1 series circuit breakers from Shanghai DaDa Electric Co., Ltd. are meticulously engineered for the seamless conduction of current under normal conditions and proficiently interrupting it during short circuits, overloads, and other operational anomalies. These circuit breakers are designed for integration into electric units with an operative voltage ceiling of 400V, accommodating rated currents from 12.5A to 1600A.
These state-of-the-art devices proudly adhere to the stringent standards of EN 60947-1 and EN 60947-2.
Thermal-Magnetic Circuit Breakers:
Thermal Protection Function: (Protection Under Overload Conditions)
The bimetal, which constitutes the thermal protection, comprises two metals with divergent thermal expansion coefficients. Upon heating, the bimetal bends towards the metal with the lower expansion rate, triggering a mechanism that opens the breaker. The bending velocity of the bimetal is directly proportional to the current passing through the breaker, as an increased current elevates the heat level. This ingenious design ensures the breaker provides reliable overload protection, activating at load currents exceeding the rated current.
Magnetic Protection Function(Protection Under Short Circuit Conditions)Another pivotal role of the breaker is to safeguardthe connected circuit against short circuits. Short circuits may occur due tophase-to-phase contact orphase-to-ground contact. In suchevents, extremely high currents flow through the cables, necessitatingan expedited interruption of the system's energy supplyto prevent thermal damage. The breakermust execute instant disconnection to shield theconnected load. The component responsible for thiscritical function is a mechanicalopening mechanism thatoperates viamagnetization induced by the magnetic field generated by the short circuit current.
The DAM1 series circuit breakers from Shanghai DaDa Electric Co., Ltd. are meticulously engineered for the seamless conduction of current under normal conditions and proficiently interrupting it during short circuits, overloads, and other operational anomalies. These circuit breakers are designed for integration into electric units with an operative voltage ceiling of 400V, accommodating rated currents from 12.5A to 1600A.
These state-of-the-art devices proudly adhere to the stringent standards of EN 60947-1 and EN 60947-2.
Thermal-Magnetic Circuit Breakers:
Thermal Protection Function: (Protection Under Overload Conditions)
The bimetal, which constitutes the thermal protection, comprises two metals with divergent thermal expansion coefficients. Upon heating, the bimetal bends towards the metal with the lower expansion rate, triggering a mechanism that opens the breaker. The bending velocity of the bimetal is directly proportional to the current passing through the breaker, as an increased current elevates the heat level. This ingenious design ensures the breaker provides reliable overload protection, activating at load currents exceeding the rated current.
Magnetic Protection Function(Protection Under Short Circuit Conditions)Another pivotal role of the breaker is to safeguardthe connected circuit against short circuits. Short circuits may occur due tophase-to-phase contact orphase-to-ground contact. In suchevents, extremely high currents flow through the cables, necessitatingan expedited interruption of the system's energy supplyto prevent thermal damage. The breakermust execute instant disconnection to shield theconnected load. The component responsible for thiscritical function is a mechanicalopening mechanism thatoperates viamagnetization induced by the magnetic field generated by the short circuit current.
| Thermal-Magnetic fixed type Circuit Breakers | |||||
| Model | DAM1-125 | ||||
| Breaking Capacity Code | B | N | S | ||
| Rated Current of Frame size- Inm (A) | 125A | ||||
| Rated Current-In(40,50 or 55ºC) (A) | 10 - 12,5 - 16 - 20 - 25 - 32(30) - 40 - 50 - 63(60) - 80 - 100 - 125A | ||||
| Rated İnsulation Voltage -Ui(a.c.) 50-60Hz (V) | 750V | ||||
| Rated operation Voltage -Ue(a.c.) 50-60Hz (V) | 400V | ||||
| Number of Pole | 3P / 4P | ||||
| Rated ultimate short Circuit breaking Capacity kA Icu AC400V/50Hz O-CO (KA) | 25 | 35 | 50 | ||
| Rated service short Circuit breaking Capacity kA Ics AC400V/50Hz O-CO-CO (KA) | 12.5 | 17.5 | 37.5 | ||
| Rated short-circuit breaking capacity Icm(peak)/cos ф AC400V/50HZ O-CO (KA) | 40/0.3 | 73.5/0.25 | 105/0.25 | ||
| Rated impulse withstand Voltage -Uimp (V) | 10000 | ||||
| Dielectric Propery (V) | 2500 | ||||
| lonization distance (mm) | ≤30/0 | ||||
| Endurance | Total Cycles | 8000 | |||
| Electrical Life | 1000 | ||||
| Mechanical Life | 7000 | ||||
| Over Current trip | Thermal and Magnetic release fix type | √ | |||
| Category (EN 60947-2/IEC 60947-2) | Main circuit | A/0 | |||
| Auxiliary circuit | AC-15 | ||||
| Under Voltage Release | √ | ||||
| Shunt Release | √ | ||||
| Auxiliary Contact | √ | ||||
| Alarm Contact | √ | ||||
| Auxiliary Contact and Alarm Contact | √ | ||||
| Handle Operation Mechanism | √ | ||||
| Electrical Operastion Mechanism | √ | ||||
| DIN clips | √ | ||||
| Terminal cover | √ | ||||
| Phase seperator | √ | ||||
| Extention Handle | - | ||||
| W (mm) | 3P | 76 | |||
| 4P | 101 | ||||
| L (mm) | 3P | 120 | |||
| 4P | 120 | ||||
| H (mm) | 3P | 70 | |||
| 4P | 70 | ||||
| Weight | Fixed version 3P/4P | 0.92/1.3 | |||
| Plug-in version 3P/4P | 1.2/1.5 | ||||
| Draw out version 3P/4P | - | ||||
