Why Choose the ABB 1SAH100485R9900 Mini Contactor Relay?
The ABB 1SAH100485R9900, also designated MCRA022ARJ, is a compact four-pole mini contactor relay designed for switching control signals and small loads in industrial, commercial and residential applications. Its space-efficient construction makes it particularly suitable for control panels where dependable performance is required within a limited installation area.
This AC-operated contactor relay incorporates two normally open and two normally closed auxiliary contacts. Special screw terminals accommodate ring-tongue cable terminals, helping provide secure electrical connections in machinery, automation and building-control systems.
The MCRA022ARJ operates from a control supply of 110–115 V AC at 50 Hz or 110–120 V AC at 60 Hz. It can switch control signals and small loads up to 6 A at 240 V AC under the AC-15 utilisation category and is suitable for DIN-rail or wall mounting.
Key Advantages
- Compact four-pole mini contactor relay for space-constrained panels.
- 2NO + 2NC auxiliary-contact arrangement supports flexible control circuits.
- AC coil rated for 110–115 V at 50 Hz and 110–120 V at 60 Hz.
- Special screw terminals accept ring-tongue cable terminals.
- Suitable for switching control signals and small loads.
- Flexible DIN-rail or wall-mounting capability.
Key Features
- ABB MCRA mini contactor relay series.
- Four-pole configuration with 2NO and 2NC contacts.
- 6 A rated operational current.
- 10 A conventional free-air thermal current.
- Rated auxiliary-circuit voltage of 690 V AC and 440 V DC.
- Ring-tongue terminal connection.
- IP20 terminal protection.
- Compact 45 × 48 × 56 mm construction.
Reliable Control-Signal Switching for Industrial Systems
Mini contactor relays provide electrically operated switching for control circuits and small loads. Applying the rated control voltage energises the coil and changes the state of the normally open and normally closed contacts, enabling signals to be distributed, interlocked or isolated within an automation system.
The ABB MCRA series combines compact dimensions with flexible mounting and secure ring-tongue connections. Its 2NO + 2NC contact arrangement makes the 1SAH100485R9900 suitable for relay logic, signalling, interlocking and auxiliary control functions in modern electrical installations.
Typical Applications
- Industrial machinery control circuits.
- Electrical-panel relay logic and interlocking.
- Automation and process-control systems.
- Building-control and HVAC equipment.
- Signal switching and status-control circuits.
- OEM machinery and compact control assemblies.
