Manual Transfer Switch
Product Overview
Multi Pass 10, 16, and 16-R
MAINTENANCE BYPASS
The Multi Pass manual bypass disconnects the UPS in case of failure or operational issues. It allows connected devices to be powered by the mains supply before a UPS shutdown or during planned maintenance. The Multi Pass is available for rack or wall installation.
Features
- Rack version 16 A
- Wall-mounted version for 10 A and 16 A
- Standard backfeed protection
- Allows connected loads to be manually connected to the mains supply before shutting down a UPS or performing maintenance tasks
- Mains power indicator LED present
- Available with different socket standards (IEC, UK socket, terminal blocks).
Image: A compact black unit labeled "Multi Pass 16 y 16-R" with various ports and indicator lights.
MBB 100 A 2P 3SW, MBB 125 A 4P 3SW, and MBB 400 A 4P 3SW
MAINTENANCE BYPASS
Riello UPS offers various two-pole and four-pole maintenance bypass solutions suitable for single-phase and three-phase applications. These devices are equipped with three switches to completely isolate the UPS for maintenance needs, while simultaneously keeping the load powered by the mains supply without any interruption.
All operations are performed safely, thanks to a dedicated auxiliary contact that provides the MBB status to the UPS, preventing any simultaneous power supply from the manual bypass and the inverter. Riello UPS offers a wide range of external bypass and static switches for UPS systems up to 800 kVA and for parallel systems up to 6.4 MVA.
Image: A white electrical enclosure labeled "MBB 125 A 4P 3SW" showing internal wiring and circuit breakers.
