Why Choose the ABB MC1C301ATWED-RAIL 1SAL102021R9911 Mini Contactor?
The ABB MC1C301ATWED-RAIL 1SAL102021R9911 is a compact, dimension-optimised three-pole DC-operated mini contactor designed for reliable load switching in railway and industrial electrical systems. It features 3 normally open (NO) main contacts and an integrated 1 normally closed (NC) auxiliary contact, providing power switching and auxiliary signalling within a space-efficient device.
Developed as part of ABB's MC1C-RAIL range, this mini contactor uses screw terminals and is designed for demanding rolling stock applications. It complies with IEC 60947-4-1, IEC 60947-5-1 and IEC 60077-1/-2, with shock and vibration resistance according to IEC 61373 Category 1, Class B.
With a rated operational power of 4 kW at AC-3, 400 V, a rated operational current of 9 A at AC-3, 400 V and an AC-1 rating of 20 A, the MC1C301ATWED-RAIL provides capable switching performance in a compact format. Its DC control voltage range is 24–41 V DC, with a nominal 33 V DC designation, and the contactor is suitable for rail or wall mounting.
Key Advantages
- Compact three-pole mini contactor designed for railway applications.
- 4 kW AC-3 motor rating at 400 V.
- 9 A rated operational current at AC-3, 400 V.
- 20 A AC-1 rating for resistive and general-purpose loads.
- 24–41 V DC control voltage range.
- Integrated 1NC auxiliary contact for signalling and control functions.
Key Features
- ABB MC1C-RAIL mini contactor series.
- 3 normally open main contacts.
- 1 normally closed auxiliary contact.
- 4 kW rated operational power at AC-3, 400 V.
- 9 A rated operational current at AC-3, 400 V.
- 20 A rated operational current at AC-1, 400 V.
- 24–41 V DC control voltage.
- Screw terminal electrical connections.
- Rail or wall mounting.
- Shock and vibration resistance according to IEC 61373 Category 1, Class B.
Compact Switching for Railway and Industrial Systems
Mini contactors provide electrically controlled switching of power loads while occupying less panel space than conventional contactors. The ABB MC1C-RAIL range combines compact dimensions with DC control and robust construction for applications where reliable switching performance and efficient use of installation space are important.
The MC1C301ATWED-RAIL is designed to address the demanding conditions encountered in rolling stock. Its railway-related standards compliance and resistance to shock and vibration make it suitable for electrical equipment installed in rail vehicles, 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.
- Three-phase motor control.
- Industrial machinery control.
- Compact electrical control panels.
