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1SAH100005R9900 ABB MCRA040ATU Mini Contactor Relay 4NO Control Relay
ABB 1SAH100005R9900 MCRA040ATU mini contactor relay with 4 normally open contacts designed for reliable control signal switching in industrial automation systems.
£25.63
Why Choose the ABB 1SAH100005R9900 MCRA040ATU Mini Contactor Relay?
The ABB 1SAH100005R9900 is a compact and reliable mini contactor relay designed for switching control signals and small electrical loads in residential, commercial and industrial automation systems. As part of the ABB MCRA mini contactor relay series, it provides dependable electromagnetic switching performance where space-saving installation is required.
This auxiliary contactor features a 4 normally open (4NO) contact configuration with screw connection terminals, making it suitable for control circuits, automation panels and electrical switching applications. Its compact construction allows efficient integration into DIN rail mounted control assemblies.
With an AC 380–400 V coil supply at 50 Hz and 440 V at 60 Hz, the ABB 1SAH100005R9900 is ideal for industrial control systems requiring reliable auxiliary switching and compact contactor technology.
Key Advantages
- Compact mini contactor relay for industrial control applications.
- 4NO auxiliary contact configuration for flexible control circuit switching.
- DIN rail mounting design for simple electrical panel installation.
- Space-saving solution for automation and building control systems.
- Reliable ABB switching technology for demanding applications.
- Suitable for residential, commercial and industrial installations.
Key Features
- ABB MCRA040ATU mini contactor relay.
- 4 normally open contacts.
- 380–400 V AC 50 Hz coil voltage.
- 440 V AC 60 Hz coil voltage.
- 6 A rated operational current.
- Screw terminal connections for reliable wiring.
- DIN rail or panel mounting capability.
- Compact design for space-limited control cabinets.
Reliable Control Switching for Industrial Automation
Mini contactor relays such as the ABB 1SAH100005R9900 provide dependable switching of control signals and auxiliary circuits in automation systems. Their compact size makes them particularly suitable for installations where panel space is limited while reliable operation is required.
The ABB MCRA series is designed for electricians, panel builders and automation engineers requiring efficient switching solutions for industrial machinery, building services and electrical control systems.
Typical Applications
- Industrial automation control panels.
- Machine control systems.
- Building automation installations.
- Electrical distribution boards.
- Motor control circuits.
- OEM machinery and production equipment.
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 | 1SAH100005R9900 | |
| Alternative type designation | MCRA040ATU | |
| Product type | Mini contactor relay / auxiliary contactor | |
| Coil / Supply Voltage | 380–400 V AC 50 Hz / 440 V AC 60 Hz | |
| Number of contacts | 4NO | |
| Rated operational current | 6 A | |
| Rated operational current at 400 V | 4 A | |
| Mounting type | DIN rail 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 1SAH100005R9900 used for?
The ABB 1SAH100005R9900 is a mini contactor relay used for switching control signals and small electrical loads in automation and electrical control systems.
How many contacts does this ABB mini contactor relay have?
The unit features 4 normally open (4NO) contacts for auxiliary switching applications.
What coil voltage does the ABB 1SAH100005R9900 require?
The contactor relay operates with a 380–400 V AC 50 Hz coil supply and 440 V AC 60 Hz supply.
Where is the ABB 1SAH100005R9900 installed?
The device is typically installed on DIN rails inside electrical control panels, automation cabinets and distribution systems.
What applications are suitable for this mini contactor relay?
It is suitable for industrial automation, building control, machinery 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.
