1SAH102139R9910 ABB MCRC031ARWDD-RAIL Mini Contactor Relay 3NO 1NC Control Relay
ABB 1SAH102139R9910 MCRC040ARWID-RAIL mini contactor relay with four normally open contacts and 24–60 V DC control supply for industrial automation applications.
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Why Choose the ABB 1SAH102139R9910 MCRC040ARWID-RAIL Mini Contactor Relay?
The ABB 1SAH102139R9910 is a compact and reliable mini contactor relay designed for industrial control applications, automation systems and auxiliary switching circuits. As part of the ABB MCRC-RAIL range, it provides dependable switching performance with a space-saving design for modern electrical control installations.
This mini contactor relay features a robust four-pole construction with screw terminals, making it suitable for applications requiring reliable control switching while maintaining efficient use of electrical panel space. Its compact design allows straightforward integration into industrial automation and control systems.
With a 24–60 V DC control supply, a 4NO contact configuration and DIN rail mounting capability, the ABB 1SAH102139R9910 is ideal for auxiliary switching, PLC interfaces and industrial control circuits requiring dependable DC operation.
Key Advantages
Compact mini contactor relay designed for industrial control applications.
Four normally open contacts for flexible auxiliary switching.
24–60 V DC control voltage range for automation systems.
Space-saving DIN rail mounting design.
Screw terminal connections for secure installation.
Suitable for industrial automation and auxiliary control applications.
Key Features
ABB MCRC-RAIL mini contactor relay series.
MCRC040ARWID-RAIL type.
4NO contact configuration.
24–60 V DC rated control supply voltage.
10 A conventional thermal current rating.
DC-operated electromagnetic system.
DIN rail and wall mounting capability.
Screw terminal connection technology.
Reliable Control Switching for Industrial Automation
Mini contactor relays such as the ABB 1SAH102139R9910 provide dependable switching for control circuits, automation interfaces and auxiliary functions. They allow industrial systems to manage electrical signals efficiently while reducing panel space requirements.
The ABB MCRC-RAIL series is designed for engineers and machine builders requiring compact installation, reliable DC operation and dependable switching performance in modern industrial electrical systems.
Typical Applications
Industrial automation control panels.
PLC interface switching.
Control signal switching systems.
Building automation systems.
Machine control equipment.
Auxiliary switching circuits.
Technical Specifications
Manufacturer
ABB
Series
MCRC-RAIL Mini Contactor Relays
Model
1SAH102139R9910
Type
MCRC040ARWID-RAIL
Product type
Mini contactor relay
Control voltage
24–60 V DC
Contact configuration
4NO
Number of poles
4P
Rated operational voltage
690 V AC / 440 V DC
Conventional thermal current Ith
10 A
Mounting type
DIN rail / wall mounting
Connection type
Screw terminals
Protection rating
IP20
Dimensions (H × W × D)
48 × 45 × 68 mm
Frequently Asked Questions
What is the ABB 1SAH102139R9910 used for?
The ABB 1SAH102139R9910 is a mini contactor relay used for switching control signals and auxiliary circuits in industrial automation systems.
What control voltage does this relay require?
The relay operates with a 24–60 V DC control supply.
How many contacts does this contactor relay have?
The ABB 1SAH102139R9910 has a 4NO contact configuration.
What is the rated thermal current of this relay?
The relay has a conventional thermal current rating of 10 A.
Where is this relay typically installed?
The relay is typically installed on DIN rails inside industrial control panels, automation systems and electrical cabinets.
Trusted by Industrial Automation Professionals
ABB mini contactor relays are widely used by engineers and system builders to provide reliable control switching, compact installation and dependable operation in modern industrial electrical systems.
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Manufacturer
ABB
Series
MCRC-RAIL Mini Contactor Relays
Model
1SAH102139R9910
Type
MCRC040ARWID-RAIL
Product type
Mini contactor relay
Control voltage
24–60 V DC
Contact configuration
4NO
Number of poles
4P
Rated operational voltage
690 V AC / 440 V DC
Conventional thermal current Ith
10 A
Mounting type
DIN rail / wall mounting
Connection type
Screw terminals
Protection rating
IP20
Dimensions (H × W × D)
48 × 45 × 68 mm
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...