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C4MA11 IMO Trip Alarm 1NO 1NC aux. contact
IMO C4MA11 trip alarm auxiliary contact with 1NO and 1NC contacts, designed for left-hand side mounting on compatible IMO C4 motor circuit breakers for reliable trip status signalling.
£15.72
Why Choose the IMO C4MA11 Trip Alarm Auxiliary Contact?
The IMO C4MA11 is a compact trip alarm auxiliary contact designed for use with compatible IMO C4 motor circuit breakers. Featuring 1 normally open (1NO) and 1 normally closed (1NC) contact, it provides reliable remote indication of a circuit breaker's trip condition within industrial control and motor protection systems.
As part of the IMO C4 motor circuit breaker accessory range, the C4MA11 is designed for left-hand side mounting and allows the trip status of the associated circuit breaker to be incorporated into control, signalling and monitoring circuits. This makes it particularly useful where operators, PLCs or other automation equipment need a clear electrical indication that a protective device has tripped.
The C4MA11 provides rated operational currents of 6 A at 24 V AC-15, 4 A at 240 V AC-15 and 10 A at 240 V AC-1. Its combination of one NO and one NC contact provides flexibility when designing alarm, indication and interlocking circuits for industrial machinery and electrical control panels.
Key Advantages
- Provides trip alarm indication for compatible IMO C4 motor circuit breakers.
- 1NO + 1NC contact configuration for flexible signalling and control.
- 6 A rated operational current at 24 V AC-15.
- 4 A rated operational current at 240 V AC-15.
- 10 A rated operational current at 240 V AC-1.
- Compact left-hand side mounting simplifies integration with the circuit breaker.
- Suitable for alarm, status indication, interlocking and automation circuits.
Key Features
- IMO C4 motor circuit breaker accessory.
- Trip alarm auxiliary contact function.
- 1 normally open contact.
- 1 normally closed contact.
- 6 A at 24 V AC-15 rated operational current.
- 4 A at 240 V AC-15 rated operational current.
- 10 A at 240 V AC-1 rated operational current.
- Designed for left-hand side mounting on compatible C4 circuit breakers.
- Maximum of one trip alarm switch per compatible circuit breaker.
Reliable Trip Monitoring for Motor Protection Systems
Trip alarm contacts provide an electrical indication when a protective circuit breaker has operated. This allows the trip condition to be communicated to indicator lamps, alarm systems, PLC inputs or other control equipment, helping operators quickly identify protective trips and respond to machinery or electrical faults.
The IMO C4MA11 combines normally open and normally closed contacts in a compact side-mounted accessory. This configuration gives control system designers flexibility when creating status monitoring, alarm and interlocking circuits around compatible IMO C4 motor circuit breakers.
Typical Applications
- Motor control and protection panels.
- Industrial machinery control systems.
- PLC trip-status monitoring circuits.
- Remote fault and alarm indication.
- Electrical control panel interlocking.
- Pumps, fans and conveyor control systems.
- OEM machinery and industrial automation equipment.
Technical Specifications
| Manufacturer | IMO Precision Controls |
|---|---|
| Series | C4 Motor Circuit Breaker Accessories |
| Model | C4MA11 |
| Product type | Trip alarm auxiliary contact |
| Contact configuration | 1NO + 1NC |
| Number of normally open contacts | 1 |
| Number of normally closed contacts | 1 |
| Rated operational current, AC-15 at 24 V | 6 A |
| Rated operational current, AC-15 at 240 V | 4 A |
| Rated operational current, AC-1 at 240 V | 10 A |
| Mounting position | Left-hand side of compatible circuit breaker |
| Maximum quantity per circuit breaker | 1 |
| Function | Circuit breaker trip status signalling |
Frequently Asked Questions
What is the IMO C4MA11 used for?
The C4MA11 is a trip alarm auxiliary contact used with compatible IMO C4 motor circuit breakers to provide an electrical indication when the circuit breaker has tripped.
What contact configuration does the C4MA11 have?
The C4MA11 provides one normally open (1NO) and one normally closed (1NC) contact, allowing it to be incorporated into a variety of alarm, monitoring and interlocking circuits.
What are the contact ratings of the IMO C4MA11?
The C4MA11 is rated at 6 A at 24 V AC-15, 4 A at 240 V AC-15 and 10 A at 240 V AC-1.
Where is the C4MA11 installed?
The C4MA11 is designed for left-hand side mounting on a compatible IMO C4 motor circuit breaker, with a maximum of one trip alarm switch fitted per circuit breaker.
Can the C4MA11 be connected to a PLC or alarm system?
Yes. Its auxiliary contacts can be incorporated into suitably rated control circuits for applications such as PLC status monitoring, remote alarms, indicator circuits and electrical interlocking.
Designed for IMO Motor Protection Systems
IMO C4 motor circuit breaker accessories provide practical signalling and control functions for industrial motor protection installations, helping machine builders and control panel engineers integrate circuit breaker status into modern automation and monitoring systems.
