ABB 1SAH220410R9900 MCRC040ATWD is a four-pole DC-operated mini contactor relay with four normally open contacts, a 24 V DC control supply and 6 A AC-15 switching capability at 240 V AC.
£49.87
The ABB 1SAH220410R9900, type MCRC040ATWD, is a compact four-pole mini contactor relay designed for switching control signals and small electrical loads in residential, commercial and industrial applications. Part of ABB’s MCRC range, it provides reliable auxiliary switching performance in a space-saving design for electrical control panels.
The MCRC040ATWD features four normally open contacts (4NO) and a DC-operated control circuit. Its extended operating-limits coil is rated for a 24 V DC control supply, while screw-terminal connections provide secure and practical wiring for automation and control installations.
Designed for switching control signals up to 6 A at 240 V AC in AC-15 applications, the MCRC040ATWD combines compact dimensions with flexible installation options. It is suitable for wall or DIN-rail mounting and provides a practical solution where high performance is required but available panel space is limited.
Mini contactor relays such as the ABB MCRC040ATWD provide electrically operated auxiliary contacts for switching control signals and small electrical loads. The four normally open contacts allow multiple control circuits to be operated simultaneously from a single DC control input.
The ABB MCRC range combines compact dimensions with reliable switching performance, making these relays suitable for industrial automation, machinery control and building electrical systems where efficient use of panel space is important.
| Manufacturer | ABB |
|---|---|
| Series | MCRC |
| Model | MCRC040ATWD |
| ABB order code | 1SAH220410R9900 |
| Product type | Mini contactor relay |
| Number of poles | 4 |
| Auxiliary contact configuration | 4NO |
| Rated control supply voltage | 24 V DC |
| Control circuit | DC operated |
| AC-15 switching capability | Up to 6 A at 240 V AC |
| Conventional free-air thermal current | 10 A |
| Rated operational voltage, auxiliary circuit | 690 V AC / 440 V DC |
| Connection type | Screw terminals |
| Mounting type | DIN rail or wall mounting |
| Protection rating | IP20 |
| Dimensions (H × W × D) | 48 × 45 × 68 mm |
| Weight | 0.235 kg |
The ABB 1SAH220410R9900 is the order code for the MCRC040ATWD four-pole mini contactor relay, designed for switching control signals and small electrical loads.
The MCRC040ATWD has four normally open contacts (4NO).
The MCRC040ATWD uses a 24 V DC rated control supply with an extended operating-limits coil.
The mini contactor relay is rated for 6 A at 240 V AC in AC-15 applications.
The relay is suitable for DIN-rail or wall mounting and uses screw-terminal connections.
ABB MCRC mini contactor relays provide compact switching solutions for control and signalling circuits, combining reliable performance with flexible installation options for industrial and commercial electrical systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "ABB MCRC040ATWD Mini Contactor Relay 4NO 24 V DC", "sku": "1SAH220410R9900", "mpn": "MCRC040ATWD", "brand": { "@type": "Brand", "name": "ABB" }, "category": "Mini Contactor Relays", "description": "ABB 1SAH220410R9900 MCRC040ATWD is a four-pole DC-operated mini contactor relay with four normally open contacts, a 24 V DC control supply and 6 A AC-15 switching capability at 240 V AC.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Contact configuration", "value": "4NO" }, { "@type": "PropertyValue", "name": "Control supply voltage", "value": "24 V DC" }, { "@type": "PropertyValue", "name": "AC-15 switching capability", "value": "6 A at 240 V AC" }, { "@type": "PropertyValue", "name": "Conventional free-air thermal current", "value": "10 A" }, { "@type": "PropertyValue", "name": "Protection rating", "value": "IP20" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the ABB 1SAH220410R9900?", "acceptedAnswer": { "@type": "Answer", "text": "The ABB 1SAH220410R9900 is the order code for the MCRC040ATWD four-pole mini contactor relay, designed for switching control signals and small electrical loads." } }, { "@type": "Question", "name": "What contact configuration does the ABB MCRC040ATWD have?", "acceptedAnswer": { "@type": "Answer", "text": "The MCRC040ATWD has four normally open contacts (4NO)." } }, { "@type": "Question", "name": "What control voltage does the ABB MCRC040ATWD require?", "acceptedAnswer": { "@type": "Answer", "text": "The MCRC040ATWD uses a 24 V DC rated control supply with an extended operating-limits coil." } }, { "@type": "Question", "name": "What is the switching capability of the ABB MCRC040ATWD?", "acceptedAnswer": { "@type": "Answer", "text": "The mini contactor relay is rated for 6 A at 240 V AC in AC-15 applications." } }, { "@type": "Question", "name": "How is the ABB MCRC040ATWD installed?", "acceptedAnswer": { "@type": "Answer", "text": "The relay is suitable for DIN-rail or wall mounting and uses screw-terminal connections." } } ] }
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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...