Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SAH103105R9900 ABB MCRA031AT7 Mini Contactor Relay 3NO 1NC Control Relay
ABB 1SAH103105R9900 MCRA031AT7 mini contactor relay with 3 normally open and 1 normally closed auxiliary contacts and 240 V AC coil supply for industrial control applications.
£24.82
Why Choose the ABB 1SAH103105R9900 Mini Contactor Relay?
The ABB 1SAH103105R9900 is a compact and reliable mini contactor relay designed for switching control signals and small electrical loads in industrial automation, commercial installations and electrical control systems. Part of the ABB M mini contactor relay series, this space-saving auxiliary contactor provides dependable switching performance where high functionality is required within a compact footprint.
The MCRA031AT7 mini contactor relay features a dimension-optimised four-pole design with 3 normally open and 1 normally closed auxiliary contacts, screw terminal connections and flexible mounting options. It is suitable for wall or DIN rail mounting and is designed for switching control signals up to 6 A at 240 V AC (AC-15).
With a 240 V AC control supply, 3NO + 1NC contact configuration and a compact 45 mm wide housing, the ABB 1SAH103105R9900 is ideal for industrial control panels, PLC interfaces, automation equipment and machine-building applications requiring reliable auxiliary switching.
Key Advantages
- Compact mini contactor relay designed for industrial control applications.
- 3NO + 1NC auxiliary contact configuration for flexible control circuit switching.
- 240 V AC coil supply for standard industrial control systems.
- Space-saving design for compact electrical cabinets.
- DIN rail and wall mounting capability for flexible installation.
- Reliable switching of control signals up to 6 A.
Key Features
- ABB M mini contactor relay series.
- MCRA031AT7 product type.
- 4-pole auxiliary contactor relay design.
- 3 normally open and 1 normally closed contacts.
- 240 V AC control voltage.
- Screw terminal connection technology.
- DIN rail and screw mounting options.
- Compact housing for space-efficient control panels.
Reliable Switching for Industrial Control Systems
Mini contactor relays such as the ABB 1SAH103105R9900 provide dependable switching of auxiliary circuits, allowing automation systems to manage control signals, interlocks and electrical functions efficiently. Their compact design makes them suitable for installations where panel space is limited while maintaining reliable electrical performance.
The ABB M mini contactor relay range combines robust construction, flexible mounting options and dependable switching characteristics, making it suitable for automation engineers, machine builders and control panel manufacturers.
Typical Applications
- Industrial automation control panels.
- Machine control systems.
- PLC interface circuits.
- Motor control auxiliary circuits.
- OEM machinery and production equipment.
- Commercial and industrial electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 200–250 V | |
| Coil / Supply Voltage | 240 V AC | |
| Device Type | Contactor relay | |
| Auxiliary Contacts | 3NO + 1NC | |
| Coil Type | AC | |
| Manufacturer | ABB | |
| Series | M Mini Contactor Relays | |
| Model | 1SAH103105R9900 | |
| Alternative designation | MCRA031AT7 | |
| Product type | Mini contactor relay | |
| Control voltage | 240 V AC | |
| Control frequency | 50 / 60 Hz | |
| Auxiliary contacts | 3NO + 1NC | |
| Rated operational current | 6 A | |
| Rated operational current Ie at 400 V | 4 A | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 750 V | |
| Rated impulse withstand voltage | 6 kV | |
| Connection type | Screw terminals | |
| Mounting type | DIN rail / screw mounting | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | approx. 48 × 45 × 56 mm | |
| Weight | approx. 0.17 kg |
Frequently Asked Questions
What is the ABB 1SAH103105R9900 used for?
The ABB 1SAH103105R9900 is a mini contactor relay used for switching control signals and small electrical loads in industrial automation and electrical control systems.
What contact configuration does this relay have?
The relay features three normally open (NO) and one normally closed (NC) auxiliary contacts.
What control voltage does the ABB 1SAH103105R9900 require?
The device operates with a 240 V AC control supply.
How is the mini contactor relay installed?
The ABB 1SAH103105R9900 can be installed using DIN rail or screw mounting methods.
What applications is this mini contactor relay suitable for?
The relay is suitable for industrial automation, machine control, PLC interfaces and electrical control panel applications.
Trusted by Industrial Automation Engineers
ABB M mini contactor relays are widely used in industrial control systems to provide reliable auxiliary switching, compact installation and dependable performance in modern automation equipment.
