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1SAH102079R9900 ABB MCRA013AT4 Mini Contactor Relay 1NO 3NC Control Relay
ABB 1SAH102079R9900 MCRA013AT4 mini contactor relay with 1 normally open and 3 normally closed contacts and a 120 V AC coil designed for reliable control switching in automation systems.
£25.63
Why Choose the ABB 1SAH102079R9900 MCRA013AT4 Mini Contactor Relay?
The ABB 1SAH102079R9900 is a compact and reliable mini contactor relay designed for switching control signals and auxiliary circuits in residential, commercial and industrial automation systems. As part of the advanced ABB MCRA mini contactor relay series, it provides dependable electromagnetic switching performance where compact installation and flexible control are required.
This MCRA013AT4 mini contactor relay features a 1 normally open (1NO) and 3 normally closed (3NC) contact configuration with screw terminals, making it suitable for control panels, machinery automation, interlocking circuits and electrical switching applications.
With a 120 V AC coil supply at 50/60 Hz, the ABB 1SAH102079R9900 is ideal for industrial control systems requiring reliable auxiliary switching, compact installation and dependable long-term operation.
Key Advantages
- Compact mini contactor relay designed for industrial control applications.
- 1NO + 3NC auxiliary contact configuration for flexible control circuit design.
- 120 V AC coil voltage suitable for industrial automation systems.
- DIN rail and wall mounting capability for flexible installation.
- Space-saving design for modern electrical control panels.
- Reliable ABB technology for professional electrical installations.
Key Features
- ABB MCRA013AT4 mini contactor relay.
- 1 normally open and 3 normally closed auxiliary contacts.
- 120 V AC 50/60 Hz control coil.
- 4 A rated operational current at 400 V AC.
- Screw terminal connections for secure wiring.
- DIN rail mounting according to IEC 60715.
- Compact 4-pole contactor relay construction.
- Suitable for control signal switching and interlocking applications.
Reliable Control Switching for Industrial Automation
Mini contactor relays such as the ABB 1SAH102079R9900 provide dependable switching of control signals, feedback circuits and auxiliary loads within automation systems. Their compact construction makes them ideal for installations where panel space is limited while reliable switching performance is essential.
The ABB MCRA series is designed for electricians, panel builders and automation engineers requiring efficient control solutions for machinery, building systems and industrial electrical installations.
Typical Applications
- Industrial automation control panels.
- Machine control and interlocking systems.
- Motor control circuits.
- PLC interface and signalling circuits.
- Building automation installations.
- OEM machinery and production equipment.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 100–130 V | |
| Poles | 4-pole | |
| Coil / Supply Voltage | 120 V AC | |
| Device Type | Contactor relay | |
| Coil Type | AC | |
| Manufacturer | ABB | |
| Series | MCRA Mini Contactor Relays | |
| Model | 1SAH102079R9900 | |
| Alternative type designation | MCRA013AT4 | |
| Product type | Mini contactor relay | |
| Coil / Supply Voltage | 120 V AC 50/60 Hz | |
| Contact configuration | 1NO + 3NC | |
| Number of poles | 4 poles | |
| Rated operational current | 4 A at 400 V AC | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 750 V | |
| Mounting type | DIN rail / wall mounting | |
| Connection type | Screw terminals | |
| Dimensions (H × W × D) | 48 × 45 × 56 mm | |
| Weight | approx. 0.17 kg |
Frequently Asked Questions
What is the ABB 1SAH102079R9900 used for?
The ABB 1SAH102079R9900 is a mini contactor relay used for switching control signals, auxiliary circuits and interlocking functions in industrial automation systems.
What contact configuration does the ABB 1SAH102079R9900 have?
The relay features a 1NO + 3NC contact configuration for flexible auxiliary switching applications.
What coil voltage does the ABB 1SAH102079R9900 require?
The MCRA013AT4 operates with a 120 V AC coil supply at 50/60 Hz.
Where is the ABB 1SAH102079R9900 installed?
The device is typically installed on DIN rails or inside electrical control panels, automation cabinets and distribution systems.
What applications are suitable for this mini contactor relay?
It is suitable for industrial automation, machinery control, signalling, interlocking and electrical switching applications requiring compact auxiliary control.
Trusted by Automation Professionals Worldwide
ABB MCRA mini contactor relays are widely used by electrical installers and automation engineers to deliver reliable control switching, compact installation and dependable performance in modern electrical systems.
