Miniature Circuit Breakers : Accessories
The Best MCB Product Line in the Industry Just Got Better!
- Snap-on accessories easily install without the use of tools.
- Side-mounted auxiliary contacts for remote status indication of device connection and a version with an alarm to indicate device tripped.
- Shunt-trip module for remote tripping.
- Undervoltage/overvoltage modules for protection against voltage dips and swells.
- Lock-off attachment when used with a padlock ensures the security necessary during maintenance.
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Range of Accessories
Side Mounted Auxiliary Contacts
Our side mounted auxiliary contacts allow remote indication of the status of a circuit breaker or supplementary protector to which it is attached. These contacts come with IP20 guarded terminals and snap onto the left side of the circuit breaker or supplementary protector without the use of tools.
Side Mounted Auxiliary Contacts with Alarm
This accessory provides remote indication when a circuit breaker or supplementary protector is tripped. The trip can be a result of an overload, short-circuit, operation of shunt-trip accessory, or undervoltage/overvoltage module. Features IP20 guarded terminals to protect against accidental contact with live parts and snaps-on and installs without the use of tools.
Side Mounted Shunt-Trip Modules
Shunt-trip modules enable the circuit breaker or supplementary protector to trip, there by cutting off the power supply to any machine or equipment remotely. These modules snap onto the right side of the circuit breaker or supplementary protector without the use of tools. IP20 guarded terminals protect against accidental contact with live parts and can be used in conjunction with auxiliary contacts.
Side Mounted Under Voltage / Over Voltage Modules
For undervoltage or overvoltage protection, these modules can be attached on the right side of the circuit breaker or supplementary protector. The circuit breaker or supplementary protector will be forced to trip when the voltage is out of the predetermined band with respect to nominal voltage. These modules feature IP20 guarded terminals to protect against accidental contact with live parts and can be used in conjunction with auxiliary contacts.
This lock-off attachment when used with a padlock ensures that no unauthorized person switches the circuit breaker or supplementary protector to the ON state after a trip.
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Our line of UL 489 Branch Circuit Breakers and UL 1077 Supplementary Protectors come in a wide range of pole sizes, amperage ranges, and trip curves - providing superior performance and flexible application environments. And, when used with our accessories they offer much more than just current protection, they're capable of remote tripping, status indication, undervoltage/overvoltage protection, and more.
Enhance the Value of Your Application with Miniature Circuit Breaker Accessories
A standalone Miniature Circuit Breaker is just a current dependent switch which when tripped will turn itself OFF, interrupting power in case of an overload or short circuit.
Miniature Circuit Breakers can offer much more than just current protection. Read our whitepaper to learn how the use of accessories can turn a single-purpose MCB into a multi-purpose assembly.
Enhance your Application with Miniature Circuit Breaker Accessories
Learn how our MCB accessories can enhance your application. From Auxiliary Contacts to Lock-off attachments, a simple accessory can change your control panel for the better.
How to Install MCB Accessories
In this video, we explain how to install our lock-off attachment and auxiliary contacts on our UL 489 and UL 1077 MCBs. We also go over the functionality of our Alarm Auxiliary Contact.