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1SAH102032R9900 ABB MCRA031ATW Mini Contactor Relay 3NO 1NC Control Relay
ABB 1SAH102032R9900 MCRA031ATW mini contactor relay with 3NO and 1NC auxiliary contacts designed for industrial control and automation switching applications.
£24.82
Why Choose the ABB 1SAH102032R9900 MCRA031ATW Mini Contactor Relay?
The ABB 1SAH102032R9900 MCRA031ATW is a compact and reliable mini contactor relay designed for switching control signals and auxiliary circuits in industrial, commercial and building automation applications. As part of the ABB MCRA mini contactor relay range, it provides dependable control performance where space-saving installation and flexible switching capability are required.
This dimension-optimised four-pole contactor relay features screw terminals and an AC-operated coil, making it suitable for control panels, automation systems and electrical installations where reliable auxiliary switching is essential. Its compact design allows efficient use of cabinet space while maintaining ABB’s recognised standards for industrial switching equipment.
With a 3 normally open + 1 normally closed auxiliary contact configuration and an AC control supply of 415–440 V AC at 50 Hz / 480 V AC at 60 Hz, the ABB 1SAH102032R9900 MCRA031ATW is suitable for switching control signals up to 6 A in AC-15 applications and integrating into a wide range of electrical control systems.
Key Advantages
- Compact mini contactor relay designed for auxiliary switching applications.
- 3NO + 1NC contact arrangement for flexible control circuit design.
- 415–440 V AC coil supply at 50 Hz and 480 V AC at 60 Hz.
- Space-saving design for electrical cabinets and automation panels.
- Screw terminal connections provide secure and simple installation.
- Suitable for industrial, commercial and building control applications.
Key Features
- ABB MCRA031ATW mini contactor relay.
- 4-pole auxiliary contact configuration.
- 3 normally open contacts and 1 normally closed contact.
- 6 A rated operational current for AC-15 control applications.
- 4 A rated operational current at 400 V AC.
- AC operated coil system.
- Screw connection terminals for auxiliary circuits.
- DIN rail or wall mounting capability.
Reliable Auxiliary Switching for Industrial Control Systems
Mini contactor relays such as the ABB MCRA031ATW provide reliable switching of control circuits, allowing automation equipment, machines and electrical systems to manage auxiliary signals efficiently. Their compact construction makes them ideal for installations where panel space is limited.
The ABB MCRA series is designed for applications requiring dependable switching performance, easy installation and compatibility with modern industrial control systems. The 1SAH102032R9900 combines ABB reliability with flexible contact arrangements for a broad range of control applications.
Typical Applications
- Industrial automation control panels.
- Machine control and auxiliary circuits.
- Building automation systems.
- Electrical distribution control systems.
- Motor control and switching applications.
- OEM machinery and industrial equipment.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 380–440 V, 460–500 V | |
| Poles | 4-pole | |
| Coil / Supply Voltage | 415 V AC, 440 V AC, 480 V AC | |
| Device Type | Contactor relay | |
| Coil Type | AC | |
| Manufacturer | ABB | |
| Series | MCRA Mini Contactor Relays | |
| Model | MCRA031ATW | |
| Part number | 1SAH102032R9900 | |
| Product type | Mini contactor relay | |
| Contact configuration | 3NO + 1NC | |
| Number of poles | 4-pole | |
| Control voltage | 415–440 V AC (50 Hz) / 480 V AC (60 Hz) | |
| Rated operational current Ie | 6 A (AC-15) | |
| Rated operational current at 400 V | 4 A | |
| Rated insulation voltage | 750 V | |
| Rated operational voltage | up to 690 V AC | |
| Connection type | Screw terminals | |
| Mounting type | DIN rail / panel mounting | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | 48 × 45 × 56 mm | |
| Weight | approx. 0.17 kg |
Frequently Asked Questions
What is the ABB 1SAH102032R9900 used for?
The ABB 1SAH102032R9900 MCRA031ATW is a mini contactor relay used for switching control signals and auxiliary circuits in industrial and automation applications.
What contact configuration does this relay have?
The MCRA031ATW features a 3 normally open + 1 normally closed (3NO + 1NC) auxiliary contact configuration.
What coil voltage does the ABB MCRA031ATW require?
The relay operates with an AC control supply of 415–440 V AC at 50 Hz and 480 V AC at 60 Hz.
What is the rated current of this mini contactor relay?
The ABB MCRA031ATW supports switching applications up to 6 A in AC-15 applications.
How is the ABB 1SAH102032R9900 installed?
The relay can be installed using DIN rail mounting or panel mounting and uses screw terminal connections.
Trusted by Industrial Automation Professionals
ABB mini contactor relays are widely used by engineers and machine builders to provide dependable auxiliary switching, compact installation and reliable control system performance.
