Why Choose the ABB 1SAH220397R9900 MCRC004ATWD Auxiliary Contactor Relay?
The ABB 1SAH220397R9900 is a compact and reliable MCRC004ATWD mini auxiliary contactor relay designed for switching control signals and small electrical loads in industrial automation, building systems and electrical control applications. As part of the ABB MCRC mini auxiliary contactor range, it provides space-saving installation, dependable DC coil operation and flexible integration into modern control panels.
This auxiliary contactor features a four-pole configuration with four normally closed contacts, screw terminal connections and a compact design optimised for applications where control performance is required but installation space is limited. It is suitable for wall or DIN rail mounting and can be expanded with additional auxiliary contacts.
With a 24 V DC control supply, a 6 A rated operational current and four normally closed auxiliary contacts, the ABB MCRC004ATWD is ideal for control signal switching, interface applications and industrial automation systems.
Key Advantages
- Compact auxiliary contactor relay designed for space-saving installations.
- 24 V DC coil operation suitable for industrial control systems.
- Four normally closed auxiliary contacts for flexible control signalling.
- 6 A rated operational current for control circuit switching.
- Suitable for DIN rail or wall mounting.
- Expandable with additional auxiliary contact blocks for increased functionality.
Key Features
- ABB MCRC mini auxiliary contactor series.
- MCRC004ATWD contactor relay type.
- 24 V DC control voltage.
- 4-pole auxiliary contact configuration.
- 4 NC auxiliary contacts.
- 6 A rated operational current.
- 4 A rated operational current at 400 V.
- Screw terminal connections.
- Compact enclosure for industrial control panels.
Reliable Control Switching for Industrial Automation
Auxiliary contactor relays such as the ABB MCRC004ATWD provide reliable switching of control signals and small electrical loads while maintaining a compact installation footprint. They are commonly used alongside contactors, relays and automation equipment to provide additional signalling and interlocking functions.
The ABB MCRC series is designed for industrial, commercial and building automation applications where dependable control switching, flexible mounting and efficient panel integration are required.
Typical Applications
- Industrial automation control systems.
- Electrical control panels and cabinets.
- PLC interface and signalling circuits.
- Motor control auxiliary circuits.
- Building automation systems.
- Industrial relay and contactor control applications.
