Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MCAH01 IMO Auxiliary Contact Block High Switching Capacity 25A AC1, 1
£3.86
Why Choose the IMO MCAH01 Auxiliary Contact Block?
The IMO MCAH01 is a compact, high-capacity auxiliary contact block designed to expand the control and signalling capabilities of compatible IMO contactors. Featuring 1 normally closed (1NC) contact, it provides dependable status feedback, electrical interlocking and supplementary switching within industrial automation and motor-control circuits.
Designed for convenient top mounting, the MCAH01 connects directly to compatible IMO contactors without requiring a separate mounting assembly. Its high switching capacity makes it suitable for demanding auxiliary circuits, including contactor feedback, safety interlocking, sequence control and remote signalling applications.
The MCAH01 is rated at 25 A for AC-1 loads at 690 V, with operational ratings of 6 A at 230 V AC-15 and 3 A at 400 V AC-15. Its compact construction and mechanical connection to the contactor provide reliable operation while conserving valuable space inside industrial control panels.
Key Advantages
- Compact top-mounted auxiliary contact block.
- 1 normally closed contact for feedback and interlocking circuits.
- High 25 A AC-1 switching capacity.
- 6 A AC-15 rating at 230 V AC.
- Quick mechanical installation onto compatible IMO contactors.
- Provides additional control functionality without a separate relay.
- Ideal for industrial automation, signalling and motor-control panels.
Key Features
- IMO high-capacity auxiliary contact range.
- 1NC contact configuration.
- Top-mount installation.
- 25 A AC-1 rating at 690 V.
- 6 A AC-15 rating at 230 V.
- 3 A AC-15 rating at 400 V.
- Designed for direct mechanical operation by the contactor.
- Compatible with selected IMO MCR and MC contactor models.
Reliable Auxiliary Switching for Industrial Control
Auxiliary contact blocks such as the IMO MCAH01 provide additional low-power contacts that operate simultaneously with the main contacts of a contactor. The normally closed contact opens when the contactor energises, allowing the control system to monitor contactor status or prevent conflicting equipment from operating.
The MCAH01 is particularly useful in electrical interlocking, sequence-control and status-feedback circuits. Its direct top-mounted design reduces wiring complexity and panel space while providing dependable mechanical coordination with the associated contactor.
Typical Applications
- Contactor status feedback circuits.
- Electrical interlocking systems.
- Motor starter control panels.
- PLC input and monitoring circuits.
- Industrial sequencing systems.
- Machine automation and OEM equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Contacts | 1NC | |
|---|---|---|
| Device Type | Contact Block | |
| Current | 25 A | |
| Manufacturer | IMO Precision Controls | |
| Model | MCAH01 | |
| Product type | High-capacity auxiliary contact block | |
| Contact configuration | 1 normally closed (1NC) | |
| Mounting position | Top mounting | |
| Rated operational current, AC-15 at 230 V | 6 A | |
| Rated operational current, AC-15 at 400 V | 3 A | |
| Rated operational current, AC-1 at 690 V | 25 A | |
| Compatible contactors | Selected MCR07, MCRD07 and MC models up to MC115 | |
| Connection function | Contactor-operated auxiliary switching | |
| Typical contact use | Feedback, interlocking and signalling | |
| Approximate weight | 0.03 kg | |
| HS Code | 8538909999 | |
| Country of Manufacture | Austria |
Frequently Asked Questions
What is the IMO MCAH01 used for?
It adds a normally closed auxiliary contact to a compatible IMO contactor for status feedback, electrical interlocking, signalling and control functions.
What contact configuration does the MCAH01 provide?
The MCAH01 provides 1 normally closed (1NC) auxiliary contact.
What is the switching capacity of the MCAH01?
It is rated at 25 A AC-1 at 690 V, 6 A AC-15 at 230 V and 3 A AC-15 at 400 V.
How is the auxiliary contact block installed?
The MCAH01 is designed for direct top mounting onto compatible IMO contactors.
Which contactors are compatible with the MCAH01?
It is designed for selected IMO MCR07, MCRD07 and MC contactors up to the MC115 frame range. Compatibility should be confirmed for the specific contactor model before installation.
Trusted by Industrial Control Professionals
IMO auxiliary contact blocks provide panel builders, machine manufacturers and automation engineers with reliable supplementary switching for contactor feedback, interlocking and industrial control applications.
