Bypass & alarm contacts
UPS bypasses and signals for maintainable power protection
An external service bypass allows UPS maintenance, testing or replacement while the connected load can remain supplied. Alarm contacts and signals help you identify operating conditions early.
Products
External service bypasses for 10 A and 16 A
Compare BY10, BY10-R, BY16 and BY16-R directly in the shop. Product details, prices, availability and cart functions are loaded from the current catalog. If the connection, form factor or compatibility is unclear, we can check the selection before you order.
Monitoring & advice
Connect bypasses, signal outputs and alarm contacts correctly
The connections, required signals and existing UPS must be considered alongside the bypass. ERREPI can help you choose the right combination.
Connect operating states, battery operation and faults to monitoring or service workflows.
View monitoring productsAdviceAsk about alarm contactsTell us the existing system, required signal and connected equipment. We will check the right solution.
Ask us to check the selectionPlanning
Plan the bypass as part of operation and maintenance
Before choosing a bypass, determine whether loads must continue running or can be shut down in a controlled manner.
Rack layout, connection space, plugs, load outlets and accessibility determine the right implementation.
Depending on its operating state, the switching device supplies the load through the inverter or an alternative power path.
Next step
Plan maintainability before purchasing
ERREPI will check which bypass, signals and service procedures suit your UPS system.