APC 0G-SBS100KD Static Bypass Switch Unit

Module Feature

0G-SBS100KD is a static bypass switch module dedicated to APC Galaxy VS UPS platform.

It adopts thyristor-based solid-state switching architecture, providing automatic transfer path between main inverter and utility bypass source. It supports high-speed fault transfer to protect downstream critical loads from power interruption. It integrates internal temperature and current monitoring circuits, and supports hot-swap replacement under qualified operating conditions. It is widely deployed in data centre, industrial control room and hospital critical power distribution cabinets.

Working principle

Under normal operation, the inverter supplies power to the load.

When inverter fault, overload or emergency stop occurs, the static bypass switch receives trigger signal and turns on thyristor stack instantly, transferring load to utility bypass source. The transfer logic ensures seamless power continuity for sensitive electrical loads.

Onboard components

Thyristor power stack, gate trigger drive board, current sampling circuit, temperature sensor, status LED array, power bus terminals, control signal connector.

LED indicators

Front LEDs indicate power ready, bypass active, transfer fault and over-temperature alarm.

Hardware self‑diagnosis

Built-in supervision detects thyristor overcurrent, over-temperature, trigger drive loss and internal component failure. Fault codes and event records can be viewed via APC EcoStruxure Power software.

Programming software

APC EcoStruxure Power, used for UPS system monitoring, bypass diagnostic checking and parameter configuration.

Electrical & Process Parameters

Model:0G-SBS100KD Brand:APC Device type:UPS static bypass switch module Function:Seamless load transfer between inverter and utility bypass for Galaxy VS UPS

Mechanical & Structure

Mounting:Plug-in installation inside Galaxy VS UPS cabinet Protection class:IP20 Housing:Metal shielded rack module assembly

Environmental

Operating temperature:0℃ ~ +40℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing

Certification:CE, IEC62040, UL

Status:Original APC critical power spare

Installation

Isolate power sources and confirm safe lockout before module replacement.

Insert the module into designated slot, tighten busbar terminals and signal connector, perform transfer function test before commissioning.

Interface

DC/AC power bus terminals, gate control signal connector, monitoring communication port.

Diagnostic

Bypass transfer failure: Damaged thyristor stack, missing trigger signal or interlock circuit open. Overtemperature alarm: Fan failure, blocked air duct or excessive load current. Communication dropout: Loose monitoring wiring or UPS controller fault.

Product Brief

APC 0G-SBS100KD static bypass switch module, solid-state bypass spare for Galaxy VS UPS critical power cabinet replacement.