Why Choose the ABB 1SAH101994R9900 Mini Contactor Relay?
The ABB 1SAH101994R9900, manufacturer model MCRC040ARB, is a compact four-pole mini contactor relay designed for auxiliary switching, control and signalling duties in industrial machinery and automation systems. Its dimension-optimised construction makes it well suited to control panels where installation space is limited.
This contactor relay provides four normally open auxiliary contacts and operates from a 12 V DC control supply. Ring-tongue terminals provide secure conductor connections, while compatibility with standard 35 mm DIN rails enables straightforward integration into industrial control cabinets.
With a conventional free-air thermal current of 10 A, an AC-15 operational current rating of 4 A at 400 V and a mechanical durability of 10,000,000 operations, the MCRC040ARB provides reliable switching for relays, contactor coils, signalling devices and other auxiliary control loads.
Key Advantages
- Compact four-pole mini contactor relay for industrial control circuits.
- Four normally open auxiliary contacts for flexible switching.
- 12 V DC control coil suitable for low-voltage control systems.
- 10 A conventional free-air thermal current.
- Ring-tongue terminals provide secure electrical connections.
- Compatible with standard 35 mm DIN-rail mounting.
Key Features
- ABB MCRC mini contactor relay series.
- 4NO contact configuration.
- 12 V DC rated control-circuit voltage.
- 4 A AC-15 operational current at 400 V.
- 10 A conventional free-air thermal current.
- 750 V rated insulation voltage.
- IP20 protection at the auxiliary and control terminals.
- Compact DIN-rail-mounted design with ring-tongue terminals.
Reliable Switching for Auxiliary Control Circuits
Contactor relays such as the ABB MCRC040ARB use an electromagnetic coil to switch multiple auxiliary contacts simultaneously. This enables reliable control of contactor coils, relays, indicators, interlocking circuits and other control-system loads from a single command signal.
The four normally open contacts support applications requiring several circuits to be energised together. Its compact dimensions, durable switching mechanism and DIN-rail compatibility make the relay suitable for new machinery, control-panel construction and replacement applications.
Typical Applications
- Industrial control and signalling circuits.
- Electrical interlocking systems.
- Contactor and relay coil control.
- Motor-starter control panels.
- Machine automation and sequencing systems.
- Heating, ventilation and process-control equipment.
