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1SAH100015R9900 ABB MCRA031ATU Mini Contactor Relay 3NO 1NC Control Relay
ABB 1SAH100015R9900 MCRA031ATU mini contactor relay with 380-400 V AC coil and 3NO 1NC auxiliary contacts designed for industrial control and automation applications.
£25.63
Why Choose the ABB 1SAH100015R9900 MCRA031ATU Mini Contactor Relay?
The ABB 1SAH100015R9900 is a compact and reliable mini contactor relay designed for switching control signals and small electrical loads in industrial automation, building systems and electrical control panels. As part of the advanced ABB MCRA mini contactor relay series, it provides dependable auxiliary switching performance where installation space is limited.
This auxiliary contactor features a space-saving four-pole design with 3 normally open and 1 normally closed contacts, screw terminals and a 380–400 V AC coil suitable for industrial control circuits. Its compact construction allows wall or DIN rail mounting, making it ideal for automation systems requiring reliable control switching.
With a rated operational current of 4 A at 400 V AC and control switching capability up to 6 A, the ABB 1SAH100015R9900 is suitable for control circuits, signalling systems and industrial electrical panels where compact dimensions and reliable operation are required.
Key Advantages
- Compact mini contactor relay for industrial control applications.
- 3NO + 1NC auxiliary contact configuration for flexible control circuits.
- 380–400 V AC coil supply for industrial automation systems.
- Space-saving design for compact electrical panels.
- DIN rail and wall mounting compatibility.
- Reliable ABB construction for professional automation installations.
Key Features
- ABB MCRA031ATU mini contactor relay.
- Four-pole auxiliary contactor design.
- 3 normally open (NO) contacts.
- 1 normally closed (NC) contact.
- 380–400 V AC coil voltage at 50 Hz.
- 440 V AC coil voltage at 60 Hz.
- 4 A rated operational current at 400 V AC.
- 6 A control switching capability.
- Screw terminal connection system.
Reliable Auxiliary Switching for Automation Systems
Mini contactor relays such as the ABB 1SAH100015R9900 provide dependable switching of control circuits, allowing machines, automation systems and electrical installations to manage auxiliary functions safely and efficiently.
The ABB MCRA series is designed for applications where high performance is required but available installation space is limited. Its compact four-pole configuration, screw terminals and flexible mounting options make it suitable for residential, commercial and industrial control applications.
Typical Applications
- Industrial automation control panels.
- Motor control circuits.
- Building automation systems.
- Machine control and signalling circuits.
- Electrical distribution panels.
- OEM equipment and industrial machinery.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 380–440 V | |
| Coil / Supply Voltage | 380 V AC, 400 V AC, 440 V AC | |
| Device Type | Auxiliary contact block | |
| Coil Type | AC | |
| Manufacturer | ABB | |
| Series | MCRA Mini Contactor Relays | |
| Model | 1SAH100015R9900 | |
| Type designation | MCRA031ATU | |
| Product type | Mini contactor relay / auxiliary contactor | |
| Contact configuration | 3NO + 1NC | |
| Number of auxiliary contacts | 4 | |
| Coil / Supply Voltage | 380–400 V AC 50 Hz / 440 V AC 60 Hz | |
| Rated operational current Ie at 400 V | 4 A | |
| Rated switching current | 6 A | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Mounting type | DIN rail / wall mounting | |
| Connection type | Screw terminals | |
| Width | 45 mm | |
| Height | 48 mm | |
| Depth | approx. 56 mm | |
| Protection rating | IP20 | |
| Weight | approx. 0.17 kg |
Frequently Asked Questions
What is the ABB 1SAH100015R9900 used for?
The ABB 1SAH100015R9900 is a mini contactor relay used for switching auxiliary control circuits and small electrical loads in automation systems.
What coil voltage does this contactor relay use?
The relay uses a 380–400 V AC coil supply at 50 Hz and 440 V AC at 60 Hz.
What contact arrangement does the ABB 1SAH100015R9900 have?
The contactor relay features 3 normally open and 1 normally closed auxiliary contacts.
How is this mini contactor relay installed?
The ABB 1SAH100015R9900 is designed for DIN rail or wall mounting with screw terminal connections.
What applications is this relay suitable for?
The relay is suitable for industrial automation, control panels, signalling circuits and building control systems.
Trusted by Automation Professionals Worldwide
ABB mini contactor relays provide compact, reliable switching solutions for industrial automation, control panels and electrical systems where dependable auxiliary control is required.
