ABB 1SAH101995R9900 MCRK040ARD is a compact four-pole mini contactor relay with four normally open contacts, a 24 V DC coil, ring-tongue terminals and 35 mm DIN-rail mounting.
£65.93
The ABB 1SAH101995R9900, manufacturer model MCRK040ARD, is a compact four-pole mini contactor relay designed for auxiliary switching, signalling and interlocking duties in industrial machinery and automation systems. Its dimension-optimised construction makes it well suited to control panels where installation space is limited.
This contactor relay provides four normally open auxiliary contacts and operates from a 24 V DC control supply. Ring-tongue terminals provide secure conductor connections, while compatibility with standard 35 mm DIN rails enables straightforward integration into industrial control cabinets.
With a conventional free-air thermal current of 10 A, an AC-15 operational current rating of 4 A at 400 V and a mechanical durability of 10,000,000 operations, the MCRK040ARD provides reliable switching for contactor coils, relays, signalling devices and other auxiliary control loads.
Contactor relays such as the ABB MCRK040ARD use an electromagnetic coil to switch multiple auxiliary contacts simultaneously. This enables reliable control of contactor coils, relays, indicators, interlocking circuits and other control-system loads from a single command signal.
The four normally open contacts support applications requiring several circuits to be energised together. Its compact dimensions, durable switching mechanism and DIN-rail compatibility make the relay suitable for new machinery, control-panel construction and replacement applications.
| Manufacturer | ABB |
|---|---|
| Series | MCRK Mini Contactor Relays |
| Order code | 1SAH101995R9900 |
| Model | MCRK040ARD |
| Product type | Mini contactor relay |
| Number of poles | 4 |
| Auxiliary contact configuration | 4NO |
| Rated control-circuit voltage | 24 V DC |
| Coil consumption | 2 W pull-in and holding |
| Conventional free-air thermal current | 10 A |
| AC-15 operational current | 6 A at 240 V; 4 A at 400 V; 2.5 A at 500 V; 1.5 A at 690 V |
| DC-13 operational current | 5 A at 24 V; 2.5 A at 48 V; 0.55 A at 125 V; 0.3 A at 250 V; 0.15 A at 440 V |
| Rated insulation voltage | 750 V |
| Rated impulse withstand voltage | 6 kV |
| Minimum switching capacity | 17 V, 5 mA |
| Protection rating | IP20 at auxiliary and control terminals |
| Terminal type | Ring-tongue terminals |
| Mounting type | 35 mm DIN rail |
| Mechanical durability | 10,000,000 operations |
| Maximum switching frequency | 360 cycles per hour |
| Operating temperature | −40 to +70 °C |
| Maximum operating altitude | 3,000 m |
| Dimensions (H × W × D) | 48 × 45 × 68 mm |
| Weight | 0.245 kg |
This mini contactor relay is used to switch auxiliary control, signalling and interlocking circuits in industrial machinery and automation panels.
The relay provides four normally open auxiliary contacts in a four-pole configuration.
The ABB 1SAH101995R9900 uses a 24 V DC control coil with a pull-in and holding consumption of 2 W.
The contactor relay uses ring-tongue terminals for its auxiliary and control-circuit connections.
The relay mounts on a standard 35 mm DIN rail, including TH35-7.5 and TH35-15 rails conforming to IEC 60715.
ABB mini contactor relays provide compact and durable auxiliary switching for machine builders, panel manufacturers and automation engineers working with industrial control and signalling systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "ABB 1SAH101995R9900 MCRK040ARD Mini Contactor Relay 4NO 24 V DC", "sku": "1SAH101995R9900", "mpn": "MCRK040ARD", "brand": { "@type": "Brand", "name": "ABB" }, "category": "Contactor Relays", "description": "ABB 1SAH101995R9900 MCRK040ARD is a compact four-pole mini contactor relay with four normally open contacts, a 24 V DC coil, ring-tongue terminals and 35 mm DIN-rail mounting.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Contact configuration", "value": "4NO" }, { "@type": "PropertyValue", "name": "Control voltage", "value": "24 V DC" }, { "@type": "PropertyValue", "name": "Thermal current", "value": "10 A" }, { "@type": "PropertyValue", "name": "Terminal type", "value": "Ring-tongue terminals" }, { "@type": "PropertyValue", "name": "Protection rating", "value": "IP20" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the ABB 1SAH101995R9900 used for?", "acceptedAnswer": { "@type": "Answer", "text": "This mini contactor relay is used to switch auxiliary control, signalling and interlocking circuits in industrial machinery and automation panels." } }, { "@type": "Question", "name": "What is the contact configuration of the MCRK040ARD?", "acceptedAnswer": { "@type": "Answer", "text": "The relay provides four normally open auxiliary contacts in a four-pole configuration." } }, { "@type": "Question", "name": "What control voltage does this contactor relay require?", "acceptedAnswer": { "@type": "Answer", "text": "The ABB 1SAH101995R9900 uses a 24 V DC control coil with a pull-in and holding consumption of 2 W." } }, { "@type": "Question", "name": "What terminal type does the MCRK040ARD use?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor relay uses ring-tongue terminals for its auxiliary and control-circuit connections." } }, { "@type": "Question", "name": "How is the ABB 1SAH101995R9900 mounted?", "acceptedAnswer": { "@type": "Answer", "text": "The relay mounts on a standard 35 mm DIN rail, including TH35-7.5 and TH35-15 rails conforming to IEC 60715." } } ] }
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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...
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...