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1SAH103103R9900 ABB MCRA004AT7 Mini Contactor Relay 4NC Control Relay
ABB 1SAH103103R9900 MCRA004AT7 mini contactor relay with four normally closed contacts and 240 V AC coil for industrial control switching applications.
£24.82
Why Choose the ABB 1SAH103103R9900 MCRA004AT7 Mini Contactor Relay?
The ABB 1SAH103103R9900 is a compact and reliable mini contactor relay designed for switching control signals and small electrical loads in residential, commercial and industrial applications. As part of the ABB MCRA mini contactor relay series, it provides dependable auxiliary switching performance where high functionality and space-saving installation are required.
This four-pole auxiliary contactor relay features a 4NC auxiliary contact configuration, screw terminal connections and a 240 V AC coil supply. Its compact design allows efficient installation in electrical control panels while providing reliable switching capability for automation and control circuits.
With a 6 A rated operational current, 4 A operational current at 400 V and suitability for wall or rail mounting, the ABB MCRA004AT7 is ideal for industrial control systems requiring dependable auxiliary switching in a compact format.
Key Advantages
- Compact mini contactor relay designed for space-saving installations.
- 4NC auxiliary contact configuration for flexible control applications.
- 240 V AC coil supply suitable for industrial control circuits.
- Reliable screw terminal connections for secure wiring.
- Suitable for wall or DIN rail mounting installations.
- Designed for residential, commercial and industrial automation systems.
Key Features
- ABB MCRA004AT7 mini contactor relay.
- Four-pole auxiliary contact relay design.
- Four normally closed (4NC) contacts.
- 240 V AC control voltage at 50 / 60 Hz.
- 6 A rated operational current.
- 4 A operational current at 400 V.
- Screw terminal connection system.
- Wall or rail mounting capability.
Reliable Switching for Industrial Control Systems
Mini contactor relays such as the ABB MCRA004AT7 provide dependable switching of auxiliary circuits, control signals and small electrical loads. Their compact construction allows engineers to integrate reliable switching functionality while reducing control panel space requirements.
The ABB MCRA series is designed for applications where performance, flexibility and compact installation are essential. With multiple auxiliary contact arrangements, screw terminals and flexible mounting options, these relays integrate easily into modern automation and electrical control systems.
Typical Applications
- Industrial automation control panels.
- Machine control systems.
- Building automation installations.
- Electrical distribution equipment.
- Control signal switching applications.
- OEM automation systems.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 200–250 V | |
| Coil / Supply Voltage | 240 V AC | |
| Device Type | Contactor relay | |
| Coil Type | AC | |
| Current AC-1 | 10 A | |
| Manufacturer | ABB | |
| Series | MCRA Mini Contactor Relays | |
| Model | MCRA004AT7 | |
| Part number | 1SAH103103R9900 | |
| Product type | Mini contactor relay | |
| Control voltage | 240 V AC at 50 / 60 Hz | |
| Contact configuration | 4NC | |
| Number of auxiliary contacts | 4 | |
| Rated operational current | 6 A | |
| Rated operational current Ie at 400 V | 4 A | |
| Conventional thermal current Ith | 10 A | |
| Rated insulation voltage | 690 V AC | |
| Operating voltage DC | Up to 440 V DC | |
| Mounting type | Wall or DIN rail mounting | |
| Terminal type | Screw terminals | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | 48 × 45 × 56 mm | |
| Weight | approx. 0.17 kg |
Frequently Asked Questions
What is the ABB 1SAH103103R9900 used for?
The ABB 1SAH103103R9900 is a mini contactor relay used for switching control signals and small electrical loads in industrial, commercial and automation applications.
What contact configuration does the MCRA004AT7 have?
The ABB MCRA004AT7 features a 4NC auxiliary contact configuration.
What coil voltage does the ABB MCRA004AT7 require?
The relay operates with a 240 V AC control supply at 50 / 60 Hz.
How is the ABB MCRA004AT7 installed?
The mini contactor relay is suitable for wall or DIN rail mounting inside electrical control cabinets.
What current can this mini contactor relay switch?
The ABB MCRA004AT7 has a rated operational current of 6 A and supports 4 A at 400 V.
Trusted by Automation Engineers Worldwide
ABB MCRA mini contactor relays are widely used by electrical engineers and automation professionals to provide reliable auxiliary switching, compact installation and flexible integration into modern control systems.
