Why Choose the ABB 1SAH100535R9900 Mini Contactor Relay?
The ABB 1SAH100535R9900, also designated MCRK022ATD, is a compact four-pole mini contactor relay designed for switching control signals and small loads in industrial machinery, automation equipment and building-control systems. Its space-efficient construction makes it well suited to control panels where dependable operation is required within a limited installation area.
This DC-operated contactor relay incorporates two normally open and two normally closed auxiliary contacts, providing a versatile arrangement for signal switching, control sequencing and electrical interlocking. Screw terminals simplify control-panel wiring and ongoing maintenance.
The MCRK022ATD features a 24 V DC control coil with 2 W holding and pull-in consumption. It can switch AC-15 control loads up to 6 A at 240 V AC and is suitable for mounting on a DIN rail or directly onto a mounting surface.
Key Advantages
- Compact four-pole mini contactor relay for space-constrained panels.
- 2NO + 2NC contact arrangement supports flexible control logic.
- 24 V DC control coil suits industrial automation systems.
- Standard screw terminals simplify wiring and maintenance.
- High mechanical durability supports long-term operation.
- Suitable for DIN-rail or wall mounting.
Key Features
- ABB MCRK mini contactor relay series.
- Two normally open and two normally closed contacts.
- 24 V DC control voltage.
- Coil holding and pull-in consumption of 2 W.
- 6 A AC-15 rating at 240 V AC.
- Rated auxiliary-circuit voltage of 690 V AC and 440 V DC.
- Standard screw-terminal connections.
- IP20 terminal protection.
Reliable Control-Signal Switching for Automation Systems
A mini contactor relay uses an electromagnetic coil to change the state of its auxiliary contacts. Applying the rated 24 V DC control voltage energises the MCRK022ATD, closing its two normally open contacts and opening its two normally closed contacts.
The balanced contact arrangement supports signal distribution, feedback, control sequencing and electrical interlocking. Compact dimensions, screw terminals and flexible mounting make the relay suitable for densely populated control panels and machine-control assemblies.
Typical Applications
- Industrial machinery control circuits.
- Electrical-panel relay logic and interlocking.
- Automation and process-control systems.
- Building-control and HVAC equipment.
- Signal distribution and auxiliary-load switching.
- OEM machinery and compact control assemblies.
