AutomationDirect: WAGO Multi-Channel Electronic Circuit Breakers

November 10, 2020

Electronic circuit breakers (ECB) provide supplementary circuit protection of 24 VDC circuits for up to 10A per channel. ECBs protect against overloads as well as short circuits, and are available in single-, 2-, 4- and 8-channel models; available NEC Class 2 rated models are fixed at 3.8A, and allow conversion of circuitry from a non-NEC class 2 power supply to a downstream Class 2 device.

These electronic circuit breakers distribute and monitor the load current over several circuits. They reliably recognize overloads and short circuits on an output. The circuit breakers’ electronics permit brief current peaks and switch longer overloads off. The rated current for each output can be individually set with a current selector switch, which is accessible from the front. The outputs are time-delay and load-dependent activated to avoid overload current. If the rated current is exceeded for a set time, the output will be switched off automatically and can be switched on after a waiting time (thermal relaxation) using the pushbutton or the remote signal-input S1. The pushbutton can also be used to switch the output manually. The state of each output is also indicated with a multi-colored LED. Upon overload, the remaining circuits are separated from the defective current path without reverse feed, thanks to Active Current Limiting. A drop in voltage will not hinder the reliability of the respective circuit.

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  •    –   Space saving ECBs with two, four, and eight channels
  •    –   Models range from 0.5-10A nominal current, adjustable for each channel via sealable selector switch
  •    –   One illuminated, three color button per channel simplifies switching (on/off), resetting, and on-site diagnostics
  •    –   Time-delayed switching of channels
  •    –   NEC Class 2 3.8 A fixed models available
  •    –   Remote input resets tripped channels or switches on/off any number of channels via pulse sequence
  •    –   Easy to use Push-In CAGE CLAMP© terminals

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