Product Types

AC/DC Power Supplies
Battery Chargers
CCTV Power Supply Cabinets
Coil Windings - Design/Manufacture
DC I/P UPS / Chargers
DC to DC Convertor
DC-AC Inverter
Desktop/Workstation UPS
DIN Rail Power Supply
ETSI / 19` Telecom Inverter
Explosion Proof UPS
Fuel Cell DC Converter
Hydrogen Stack Converters/ Hydrogen Stack Chargers
IP67 Waterproof LED Power Supplies
LED Dimmer
LED Drivers
LED Lighting/LED Ribbon Strips
Linear Power Supply
Manual Bypass Switch
Marine Power Supply EN60945
Marine UPS
Medical Approved PSU
Medical UPS Systems
Military Case Studies
Outdoor UPS
Plug Top / Desk Top Adapters
Power Supply Repair
Rail / Industrial PSU
Safe Zone O Digital Camera
Static Inverter -Emergency Lighting
Toroidal Transformer
UPS Systems
Zone 1 Explosion Proof Battery Box / Solutions


:: Manual Bypass Switch

Manual Bypass Switch for UPS & electrical installations. These standard off the shelf Manual Bypass Switch are used by some of the leading UPS & electrical wholesalers so as to bypass a UPS or Load, so as to carrying out routine maintenance or bypass a UPS in safety critical application.

:: Manual Bypass Switch 20A - 160A :: MBPS

Our range of external UPS manual bypass switches, have been designed to allow isolation of UPS standby systems for routine servicing, repair or removal without disrupting power to the critical load.

The Manual Bypass Switches are avilable as rotary switches or static type
Ratings for rotary type switches are available - 20A to 160A either two pole or four pole switches. The static version is currently available at either 10A or 16A single phase only
The MMBS escutcheon reads Normal/Test/Bypass as standard, other escutcheon plates are available
All enclosures are of sheet steel design
All switches are key lockable or pad lockable in all 3 positions
The MMBS enclosures are provided with full connection instructions for easy electrical installation.
Alternative combination and designs are available
Alternative distribution enclosures are also available which can provide the UPS installation with optional power distribution outlets and typically house local incoming isolators, MMBS, and customer specified MCB`s.
The benefit of a MMBS is that the UPS can be serviced or completely removed without disruption to the critical load, hence avoiding any down time.

Wiring is to terminals via a removable gland plate on rotary switches and to IEC sockets on the static version. These wall mounted MMBS enclosures can be retrofitted to an existing UPS installation, or provided as part of the initial contract. 

 Click to Download Datasheet

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