ABB 1SAH100530R9900 MCRI040ATD is a compact PLC-controlled mini contactor relay with four normally open contacts and a low-consumption 24 V DC, 1.2 W coil.
£51.59
The ABB 1SAH100530R9900, also designated MCRI040ATD, is a compact four-pole mini contactor relay designed for switching control signals and small loads in industrial automation, machinery and building-control systems. Its low-consumption DC coil enables direct control from a compatible programmable logic controller.
This contactor relay incorporates four normally open auxiliary contacts and screw terminals for straightforward control-panel wiring. Its space-efficient construction delivers dependable switching performance where installation space is limited.
With a 24 V DC control coil consuming 1.2 W, the MCRI040ATD is suitable for direct PLC operation without an intermediate coupling relay where the PLC output has the required capacity. It supports AC-15 control loads up to 6 A at 240 V AC and can be installed on a DIN rail or mounting surface.
A mini contactor relay uses an electromagnetic coil to change the state of its auxiliary contacts. The low-power coil in the ABB MCRI040ATD allows a compatible 24 V DC PLC output to operate the relay directly, helping reduce the need for intermediate coupling components.
The four normally open contacts can distribute control signals, operate auxiliary loads or provide interlocking within an automation system. Compact dimensions and flexible mounting make the relay suitable for densely populated control panels and machine-control assemblies.
| Manufacturer | ABB |
|---|---|
| Series | MCRI Mini Contactor Relays |
| Model | MCRI040ATD |
| Order code | 1SAH100530R9900 |
| Product type | PLC-controlled mini contactor relay |
| Number of poles | 4 |
| Auxiliary contacts | 4NO |
| Control voltage | 24 V DC |
| Coil consumption | 1.2 W holding and pull-in |
| Rated operational current, AC-15 at 240 V | 6 A |
| Rated operational current, AC-15 at 400 V | 4 A |
| Rated operational current, AC-15 at 500 V | 2.5 A |
| Rated operational current, AC-15 at 690 V | 1.5 A |
| Conventional free-air thermal current | 10 A |
| Rated auxiliary-circuit operational voltage | 690 V AC / 440 V DC |
| Rated insulation voltage | 750 V |
| Rated impulse withstand voltage | 6 kV |
| Mechanical durability | 10,000,000 operating cycles |
| Terminal type | Screw terminals |
| Protection rating | IP20 at terminals |
| Mounting type | DIN rail or wall mounting |
| Dimensions (W × H × D) | 45 × 48 × 68 mm |
| Net weight | 0.235 kg |
| Operating temperature | -40 °C to +70 °C |
| Storage temperature | -55 °C to +80 °C |
| Maximum operating altitude | 3,000 m |
| Standards | IEC/EN 60947-1, IEC/EN 60947-5-1, UL 60947-1 and UL 60947-5-1 |
It switches control signals and small loads in PLC-controlled machinery, automation systems and electrical control panels.
Yes. Its 24 V DC, 1.2 W low-consumption coil is designed for direct operation from a compatible PLC output.
The relay has four normally open auxiliary contacts, providing a 4NO arrangement.
The contactor relay is rated at 6 A at 240 V AC and 4 A at 400 V AC under the AC-15 utilisation category.
The compact relay can be mounted on a compatible DIN rail or directly onto a mounting surface and connected through screw terminals.
ABB MCRI mini contactor relays combine low coil consumption, compact construction and dependable switching to support efficient PLC-controlled machinery and industrial automation systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "ABB 1SAH100530R9900 MCRI040ATD PLC Mini Contactor Relay 4NO 24 V DC", "sku": "1SAH100530R9900", "mpn": "MCRI040ATD", "brand": { "@type": "Brand", "name": "ABB" }, "category": "Mini Contactor Relays", "description": "ABB 1SAH100530R9900 MCRI040ATD is a compact PLC-controlled mini contactor relay with four normally open contacts and a low-consumption 24 V DC, 1.2 W coil.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Auxiliary contacts", "value": "4NO" }, { "@type": "PropertyValue", "name": "Control voltage", "value": "24 V DC" }, { "@type": "PropertyValue", "name": "Coil consumption", "value": "1.2 W" }, { "@type": "PropertyValue", "name": "AC-15 rating at 240 V", "value": "6 A" }, { "@type": "PropertyValue", "name": "Protection rating", "value": "IP20 at terminals" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the ABB 1SAH100530R9900 used for?", "acceptedAnswer": { "@type": "Answer", "text": "It switches control signals and small loads in PLC-controlled machinery, automation systems and electrical control panels." } }, { "@type": "Question", "name": "Can this mini contactor relay be controlled directly by a PLC?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Its 24 V DC, 1.2 W low-consumption coil is designed for direct operation from a compatible PLC output." } }, { "@type": "Question", "name": "How many contacts does the MCRI040ATD have?", "acceptedAnswer": { "@type": "Answer", "text": "The relay has four normally open auxiliary contacts, providing a 4NO arrangement." } }, { "@type": "Question", "name": "What is the AC-15 current rating?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor relay is rated at 6 A at 240 V AC and 4 A at 400 V AC under the AC-15 utilisation category." } }, { "@type": "Question", "name": "How is the ABB 1SAH100530R9900 installed?", "acceptedAnswer": { "@type": "Answer", "text": "The compact relay can be mounted on a compatible DIN rail or directly onto a mounting surface and connected through screw terminals." } } ] }
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...