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1SAH101994R9900 ABB MCRC040ARB Mini Contactor Relay 4NO Control Relay
ABB 1SAH101994R9900 MCRC040ARB is a compact four-pole mini contactor relay with four normally open contacts, a 12 V DC coil, ring-tongue terminals and 35 mm DIN-rail mounting.
£34.65
Why Choose the ABB 1SAH101994R9900 Mini Contactor Relay?
The ABB 1SAH101994R9900, manufacturer model MCRC040ARB, is a compact four-pole mini contactor relay designed for auxiliary switching, control and signalling 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 12 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 MCRC040ARB provides reliable switching for relays, contactor coils, signalling devices and other auxiliary control loads.
Key Advantages
- Compact four-pole mini contactor relay for industrial control circuits.
- Four normally open auxiliary contacts for flexible switching.
- 12 V DC control coil suitable for low-voltage control systems.
- 10 A conventional free-air thermal current.
- Ring-tongue terminals provide secure electrical connections.
- Compatible with standard 35 mm DIN-rail mounting.
Key Features
- ABB MCRC mini contactor relay series.
- 4NO contact configuration.
- 12 V DC rated control-circuit voltage.
- 4 A AC-15 operational current at 400 V.
- 10 A conventional free-air thermal current.
- 750 V rated insulation voltage.
- IP20 protection at the auxiliary and control terminals.
- Compact DIN-rail-mounted design with ring-tongue terminals.
Reliable Switching for Auxiliary Control Circuits
Contactor relays such as the ABB MCRC040ARB 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.
Typical Applications
- Industrial control and signalling circuits.
- Electrical interlocking systems.
- Contactor and relay coil control.
- Motor-starter control panels.
- Machine automation and sequencing systems.
- Heating, ventilation and process-control equipment.
Technical Specifications
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| Terminal Type | Ring tongue | |
|---|---|---|
| Poles | 4-pole | |
| Device Type | Contactor relay | |
| Auxiliary Contacts | 4NO | |
| Current AC-1 | 10 A | |
| Manufacturer | ABB | |
| Series | MCRC Mini Contactor Relays | |
| Order code | 1SAH101994R9900 | |
| Model | MCRC040ARB | |
| Product type | Mini contactor relay | |
| Number of poles | 4 | |
| Auxiliary contact configuration | 4NO | |
| Rated control-circuit voltage | 12 V DC | |
| Coil consumption | 3 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 | |
| Rated insulation voltage | 750 V | |
| Rated impulse withstand voltage | 6 kV | |
| 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 |
Frequently Asked Questions
What is the ABB 1SAH101994R9900 used for?
This mini contactor relay is used to switch auxiliary control, signalling and interlocking circuits in industrial machinery and automation panels.
What is the contact configuration of the MCRC040ARB?
The relay provides four normally open auxiliary contacts in a four-pole configuration.
What control voltage does this contactor relay require?
The ABB 1SAH101994R9900 uses a 12 V DC control coil with a pull-in and holding consumption of 3 W.
What terminal type does the MCRC040ARB use?
The contactor relay uses ring-tongue terminals for its auxiliary and control-circuit connections.
How is the ABB 1SAH101994R9900 mounted?
The relay mounts on a standard 35 mm DIN rail, including TH35-7.5 and TH35-15 rails conforming to IEC 60715.
Trusted Industrial Control from ABB
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.
