Eaton 124100027-001 9355 10-15kVA Maintenance Bypass Panel
Overview
The Eaton 124100027-001 is a maintenance bypass panel designed for the 9355 UPS series in the 10-15kVA capacity range. This accessory allows you to isolate the UPS from the load during routine maintenance, service, or repair — a critical capability when you need to keep protected equipment running on utility mains without UPS involvement. The bypass panel provides a safe, controlled switchover path that eliminates downtime for technicians to perform preventive maintenance, battery testing, or component replacement without shutting down the facility.
Compatibility
The 124100027-001 is engineered for Eaton 9355 UPS units rated 10-15kVA. Verify your exact 9355 frame size and power rating against the panel specifications before ordering — bypass panels are frame-specific and not interchangeable across different capacity ranges or UPS series. Consult the Eaton 9355 technical documentation or work with your systems integrator to confirm compatibility with your installed unit.
Installation Notes
Installation of the bypass panel requires isolation of both input and output circuits and must follow Eaton's wiring diagrams and local electrical codes. This is not a field-retrofit DIY component — engage a qualified electrician or Eaton service technician to ensure proper breaker integration, grounding, and mechanical mounting. Improper installation risks electrical shock, equipment damage, or unintended load transfer during maintenance windows.
