Why Choose the ABB MC2CB00ATWDD-RAIL 1SAL102110R9912 Mini Contactor?
The ABB MC2CB00ATWDD-RAIL 1SAL102110R9912 is a compact, dimension-optimised four-pole DC-operated mini contactor designed for reliable load switching in railway rolling stock and industrial electrical systems. Featuring 2 normally open (NO) and 2 normally closed (NC) main contacts, it provides a versatile contact arrangement for controlling single-phase and three-phase loads.
Developed as part of the ABB MC2C-RAIL mini contactor range, the MC2CB00ATWDD-RAIL uses screw terminals and includes a diode in its DC-operated control circuit. It is designed in accordance with applicable parts of IEC/EN 60077, withstands shock and vibration according to IEC/EN 61373 Category 1, Class B and is suitable for applications subject to the European EN 45545-2 railway fire and smoke safety standard.
With a rated operational power of 5.5 kW at AC-3, 400 V, a rated operational current of 12 A at AC-3, 400 V and an AC-1 rating of 20 A at 400 V, the MC2CB00ATWDD-RAIL provides capable switching performance in a compact format. Its rated control circuit voltage range is 17–30 V DC, making it suitable for nominal 24 V DC railway and industrial control systems.
Key Advantages
- Compact four-pole mini contactor designed for railway applications.
- 2NO/2NC main contact configuration for flexible load switching.
- 5.5 kW AC-3 motor rating at 400 V.
- 12 A rated operational current at AC-3, 400 V.
- 20 A AC-1 rating at 400 V for load switching applications.
- 17–30 V DC rated control circuit voltage for nominal 24 V DC systems.
Key Features
- ABB MC2C-RAIL mini contactor series.
- 2 normally open and 2 normally closed main contacts.
- 5.5 kW rated operational power at AC-3, 400 V.
- 12 A rated operational current at AC-3, 400 V.
- 4 kW rated operational power at AC-4, 400 V.
- 9 A rated operational current at AC-4, 400 V.
- 20 A rated operational current at AC-1, 400 V.
- 17–30 V DC rated control circuit voltage.
- Integrated diode in the DC control circuit.
- Screw terminal electrical connections.
- Rail or wall mounting.
- Shock and vibration resistance according to IEC/EN 61373 Category 1, Class B.
Compact Switching for Railway and Industrial Systems
Mini contactors provide electrically controlled switching of power loads while occupying less installation space than conventional contactors. The ABB MC2C-RAIL range combines compact dimensions, DC operation and railway-focused construction for controlling motors and resistive loads in applications where space and dependable performance are important.
The MC2CB00ATWDD-RAIL combines two normally open and two normally closed main contacts, providing greater switching flexibility than a conventional contactor with only normally open poles. Its integrated diode, railway-focused construction and resistance to shock and vibration make it suitable for rolling stock as well as demanding industrial control applications.
Typical Applications
- Railway rolling stock electrical systems.
- Passenger and driver compartment electrical equipment.
- Single-phase and three-phase load switching.
- Motor and resistive load control.
- Industrial machinery control.
- Compact railway and industrial control panels.
