Accessories Function Introduction

Circuit breaker accessory mainly has the following functions:

Accessory	Function	Description
Auxiliary Contact	Indication and Control	Linked with ON/OFF mechanism of the main circuit breaker, used for indicating the status (ON/OFF) of the circuit breaker. Can control or interlock related electrical devices when connected to the control circuit of the breaker.
Shunt Trip	Remote Control Tripping	Used for voltage source excitation, can be independent from the voltage of the main circuit. Enables remote disconnection of the circuit, useful for interfacing with fire alarm systems and emergency stop buttons.
Under-Voltage Trip	Protection Against Low Voltage	Automatically trips off the circuit breaker when the terminal voltage drops below a specified range, protecting electrical equipment from damage due to under-voltage.
Shunt Trip + Auxiliary Contact	Combined Functionality	Combines the functionalities of shunt trip and auxiliary contact.
Under-Voltage Trip + Auxiliary Contact	Combined Functionality	Combines the functionalities of under-voltage trip and auxiliary contact.

Complete Functionality: Achieves multiple functions such as auxiliary contact, remote shunt trip, and under-voltage protection through a combination of different components and assembly.

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Plug-in version accessory

1.63Type circuit breaker for distribution using Plug-in version installation drawing installation a
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Auxiliary contact

>> Application:The auxiliary contacts is intended for automatical controlling of the auxiliary circu
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Under Voltage release series

>> Application:The under voltage is intended for under voltage protection of circuit and electric eq
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Electrical operating mechanism(Motor)

>> DAM1(ABB) Electrical operating mechanism The electrical operating mechanism is available remote c
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MCB under voltage release

The rated voltage is 230V and 400V respectively. The release will break the circuit breaker when the
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Auxiliary and alarm contacts series

>> Application:The auxiliary contacts is intended for automatical controlling of the auxiliary circu
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MCB shunt release

Shunt releaseRated control source voltage(Us)of DAB7-FL shunt release is AC50Hz and 24V to 110V, 110
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MCB auxiliary alarm contact

Auxiliary alarm contactIt has two groups of transfer contact(as shown in below figure),when the yell
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Features of Circuit Breaker Accessories

·Compact Design: Small volume, allowing for easy integration into existing circuit breaker systems.
·Elegant Appearance: Features a transparent clamshell for tags and characteristic strips, enhancing visual appeal.
·Complete Functionality: Achieves multiple functions such as auxiliary contact, remote shunt trip, and under-voltage protection through a combination of different components and assembly.
·Versatile Installation: Can be installed on the left side of 16-series products like MCBs, RCCBs, and RCBOs.