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1SAH220438R9900 ABB MCRA022AT1 Mini Contactor Relay 2NO 2NC Control Relay
ABB 1SAH220438R9900 MCRA022AT1 mini contactor relay with 24 V AC coil and 2NO + 2NC auxiliary contacts for industrial control switching applications.
£24.82
Why Choose the ABB 1SAH220438R9900 Mini Contactor Relay?
The ABB 1SAH220438R9900 is a compact and reliable mini contactor relay designed for switching control signals and small electrical loads in residential, commercial and industrial automation applications. Part of the ABB MCRA mini contactor relay series, the MCRA022AT1 provides a dimension-optimised four-pole solution where reliable performance and reduced installation space are required.
This mini contactor relay features a compact design with screw terminal connections and an AC 24 V 50/60 Hz coil, making it suitable for control panels, machinery and automation systems. The MCRA series is designed for applications requiring dependable auxiliary switching, with suitability for wall or rail mounting.
With a 2 normally open + 2 normally closed contact configuration, a 6 A AC-15 rated operational current at 240 V and a compact four-pole format, the ABB 1SAH220438R9900 is ideal for switching auxiliary circuits, control signals and small electrical loads in modern industrial installations.
Key Advantages
- Compact mini contactor relay designed for space-saving installations.
- 2NO + 2NC auxiliary contact configuration for flexible control applications.
- 24 V AC 50/60 Hz coil for standard industrial control circuits.
- Suitable for wall or DIN rail mounting.
- Screw terminal connections for secure and reliable wiring.
- Reliable ABB switching technology for automation and control systems.
Key Features
- ABB MCRA022AT1 mini contactor relay.
- Four-pole auxiliary contact relay design.
- 2 normally open (NO) auxiliary contacts.
- 2 normally closed (NC) auxiliary contacts.
- 24 V AC 50/60 Hz control voltage.
- 6 A AC-15 rated current at 240 V.
- 4 A AC-15 rated current at 400 V.
- Compact construction for electrical control panels.
Reliable Control Switching for Industrial Automation
Mini contactor relays such as the ABB 1SAH220438R9900 provide reliable electromagnetic switching of control circuits, allowing automation systems to manage auxiliary signals, interlocks and monitoring functions using compact switching technology.
The ABB MCRA series is designed for applications where high performance is required but installation space is limited. Its compact construction, flexible contact arrangement and mounting options make it suitable for modern industrial control panels and automation systems.
Typical Applications
- Industrial automation control panels.
- Machine control and OEM equipment.
- Switching of control signals and auxiliary circuits.
- Electrical cabinets and switchgear assemblies.
- Building automation systems.
- Process control and industrial installations.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 24 V | |
| Poles | 4-pole | |
| Coil / Supply Voltage | 24 V AC | |
| Device Type | Contactor relay | |
| Coil Type | AC | |
| Current AC-1 | 10 A | |
| Manufacturer | ABB | |
| Series | MCRA Mini Contactor Relays | |
| Model | 1SAH220438R9900 | |
| Product type | Mini contactor relay | |
| Type | MCRA022AT1 | |
| Number of poles | 4 | |
| Contact configuration | 2NO + 2NC | |
| Control voltage | 24 V AC 50/60 Hz | |
| Rated operational current AC-15 | 6 A at 240 V | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage Ui | 750 V | |
| Conventional thermal current Ith | 10 A | |
| Mounting type | Wall mounting / DIN rail mounting | |
| Connection 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 1SAH220438R9900 used for?
The ABB 1SAH220438R9900 is a mini contactor relay used for switching control signals and auxiliary circuits in industrial automation applications.
What contact arrangement does this relay have?
The relay has two normally open (NO) and two normally closed (NC) auxiliary contacts.
What control voltage does the ABB 1SAH220438R9900 require?
The relay operates with a 24 V AC 50/60 Hz control coil.
How is this mini contactor relay installed?
The relay can be installed using wall or DIN rail mounting with screw terminal connections.
What is the rated current of this contactor relay?
The relay has an AC-15 rated operational current of 6 A at 240 V.
Trusted by Automation Engineers Worldwide
ABB MCRA mini contactor relays are widely used in industrial control applications to provide reliable auxiliary switching, compact installation and dependable automation system performance.
