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1SAH101990R9900 ABB MCRC004ATWG Mini Contactor Relay 4NC Control Relay
ABB 1SAH101990R9900 MCRC004ATWG mini contactor relay with 4 normally closed auxiliary contacts and 48 V DC control voltage for industrial control applications.
£34.65
Why Choose the ABB 1SAH101990R9900 Mini Contactor Relay?
The ABB 1SAH101990R9900 is a compact and reliable mini contactor relay designed for switching control signals and auxiliary loads in industrial automation, electrical control panels and machinery systems. Part of the ABB MCRC004ATWG mini contactor relay series, it provides dependable DC-operated switching performance where space-efficient installation and reliable operation are essential.
This four-pole auxiliary contactor relay features a compact design with screw terminals, making it suitable for industrial control applications where efficient panel layouts and flexible wiring are required. The robust construction and high mechanical durability ensure reliable performance in demanding automation environments.
With a 48 V DC control circuit voltage, 4 normally closed auxiliary contacts, and a compact DIN rail mounting format, the ABB 1SAH101990R9900 is ideal for PLC interfaces, machine control circuits and industrial switching applications.
Key Advantages
- Compact mini contactor relay designed for industrial control applications.
- 4NC auxiliary contact configuration for reliable control circuit switching.
- 48 V DC coil operation suitable for industrial automation systems.
- Space-saving DIN rail and panel mounting capability.
- High mechanical durability for long service life.
- Reliable switching of control signals and small electrical loads.
Key Features
- ABB MCRC004ATWG mini contactor relay series.
- 4 normally closed (NC) auxiliary contacts.
- 48 V DC rated control circuit voltage.
- 4-pole auxiliary contact design.
- Screw terminal connection system.
- DIN rail mounting according to IEC 60715.
- Compact 45 mm width housing for control cabinets.
- Suitable for industrial automation and electrical control systems.
Reliable Switching for Industrial Control Systems
Mini contactor relays such as the ABB 1SAH101990R9900 provide dependable switching of control signals, interlocks and auxiliary circuits in industrial equipment. Their compact design allows engineers to achieve efficient control cabinet layouts while maintaining reliable electrical performance.
The ABB MCRC series is developed for automation engineers and machine builders requiring durable auxiliary switching devices. With DC operation, screw connections and flexible mounting options, these relays integrate easily into modern industrial control systems.
Typical Applications
- Industrial automation control panels.
- Machine control and OEM equipment.
- PLC interface and signal switching circuits.
- Motor control auxiliary circuits.
- Industrial electrical distribution systems.
- Building and commercial automation systems.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Poles | 4-pole | |
| Device Type | Contactor relay | |
| Auxiliary Contacts | 4NC | |
| Current AC-1 | 10 A | |
| Manufacturer | ABB | |
| Series | MCRC004ATWG Mini Contactor Relay | |
| Model | 1SAH101990R9900 | |
| Product type | Mini contactor relay | |
| Auxiliary contacts | 4NC | |
| Number of poles | 4P | |
| Rated control circuit voltage | 48 V DC | |
| Rated insulation voltage | 750 V | |
| Rated operational voltage | 690 V AC / 440 V DC | |
| Conventional free-air thermal current | 10 A | |
| Rated operational current AC-15 | 6 A at 240 V AC, 4 A at 400 V AC | |
| Mounting type | DIN rail / panel mounting | |
| Connection type | Screw terminals | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | approx. 48 × 45 × 68 mm | |
| Weight | approx. 0.235 kg | |
| Mechanical durability | 10 million operations |
Frequently Asked Questions
What is the ABB 1SAH101990R9900 used for?
The ABB 1SAH101990R9900 is a mini contactor relay used for switching control signals and auxiliary loads in industrial automation and electrical control systems.
What contact configuration does this relay have?
The relay has a 4 normally closed (NC) auxiliary contact configuration.
What coil voltage does the ABB 1SAH101990R9900 require?
The MCRC004ATWG relay operates with a 48 V DC control circuit voltage.
How is this mini contactor relay mounted?
The ABB 1SAH101990R9900 is suitable for DIN rail or panel mounting in industrial control cabinets.
What connection type does this relay use?
The relay uses screw terminals for straightforward electrical connection.
Trusted by Automation Engineers Worldwide
ABB mini contactor relays are widely used in industrial automation systems to provide reliable control switching, compact installation and long-lasting performance in demanding electrical applications.
