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1SAH220400R9900 ABB MCRC004ATWN Mini Contactor Relay 4NC Control Relay
ABB 1SAH220400R9900 MCRC004ATWN mini contactor relay with four normally closed contacts and 220 V DC control supply for industrial control applications.
£34.47
Why Choose the ABB 1SAH220400R9900 Mini Contactor Relay?
The ABB 1SAH220400R9900 is a compact and reliable mini contactor relay designed for switching control signals and auxiliary circuits in industrial automation, commercial installations and electrical control systems. Part of the ABB MCRC mini contactor relay series, this space-saving device provides dependable switching performance where compact installation and reliable operation are essential.
The MCRC004ATWN mini contactor relay features a dimension-optimised four-pole design with 4 normally closed auxiliary contacts, screw terminal connections and a compact housing suitable for DIN rail mounting. It is designed for switching control signals up to 6 A in industrial and automation applications.
With a 220 V DC control supply, 4NC contact configuration and a compact 45 mm wide format, the ABB 1SAH220400R9900 is ideal for control panels, PLC interfaces, safety circuits and industrial electrical installations requiring dependable auxiliary switching.
Key Advantages
- Compact mini contactor relay designed for industrial control applications.
- 4 normally closed auxiliary contacts for flexible control circuit switching.
- 220 V DC control supply for DC automation systems.
- Space-saving design for compact electrical cabinets.
- DIN rail mounting for straightforward installation.
- Reliable switching of control signals up to 6 A.
Key Features
- ABB MCRC mini contactor relay series.
- MCRC004ATWN product type.
- 4 normally closed auxiliary contacts.
- 220 V DC rated control voltage.
- 4-pole auxiliary switching design.
- Screw terminal connection technology.
- DIN rail mounting capability.
- Compact housing for space-efficient control panels.
Reliable Switching for Industrial Control Systems
Mini contactor relays such as the ABB 1SAH220400R9900 provide dependable switching of auxiliary circuits, allowing automation systems to manage control signals, interlocks and electrical functions efficiently. Their compact construction makes them suitable for installations where panel space optimisation and reliable performance are important.
The ABB MCRC range is designed for industrial automation engineers, machine builders and control panel manufacturers requiring reliable auxiliary switching with robust electrical performance and simple installation.
Typical Applications
- Industrial automation control panels.
- Machine control systems.
- PLC interface circuits.
- Safety and interlocking control circuits.
- OEM machinery and production equipment.
- Industrial electrical cabinets.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Voltage Range | 200–250 V | |
| Poles | 4-pole | |
| Coil / Supply Voltage | 220 V DC | |
| Device Type | Contactor relay | |
| Auxiliary Contacts | 4NC | |
| Coil Type | DC | |
| Manufacturer | ABB | |
| Series | MCRC Mini Contactor Relays | |
| Model | 1SAH220400R9900 | |
| Alternative designation | MCRC004ATWN | |
| Product type | Mini contactor relay | |
| Control voltage | 220 V DC | |
| Voltage type | DC | |
| Auxiliary contacts | 4NC | |
| Number of poles | 4 | |
| Rated operational current | 6 A | |
| Rated operational current Ie at 400 V | 4 A | |
| Rated operational voltage | 690 V AC / 440 V DC | |
| Rated insulation voltage | 750 V | |
| Rated impulse withstand voltage | 6 kV | |
| Connection type | Screw terminals | |
| Mounting type | DIN rail mounting | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | approx. 48 × 45 × 68 mm | |
| Weight | approx. 0.235 kg |
Frequently Asked Questions
What is the ABB 1SAH220400R9900 used for?
The ABB 1SAH220400R9900 is a mini contactor relay used for switching control signals and auxiliary circuits in industrial automation and electrical control systems.
What contact configuration does this relay have?
The relay features four normally closed (4NC) auxiliary contacts.
What control voltage does the ABB 1SAH220400R9900 require?
The device operates with a 220 V DC control supply.
How is the mini contactor relay installed?
The ABB 1SAH220400R9900 is designed for DIN rail mounting in electrical control cabinets.
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 MCRC mini contactor relays are widely used in industrial control systems to provide reliable auxiliary switching, compact installation and dependable performance in modern automation equipment.
