External Manual Interlocking Bypasses

Built in Australia for superior quality and reliability, our wall-mounted and rack-mounted external manual interlocking bypasses support a wide range of UPS capacities from 25 amps to 140 amps, sizes, and phases (both single and three). These bypass switches are ideal for seamless power transitions or routine UPS maintenance as they ensure zero-disruption performance in critical environments.

Need something built to suit? We can customise UPS bypass switch configurations to match your UPS system, site layout, and compliance requirements.

Model	Amps	UPS Compatibility	Phase
EMBP25-1-W	25A	ENDURO 6kVA & GP 804/806	1ph
EMBP40-1-W	40A	ENDURO 10kVA (1ph/1ph) & GP 808/810	1ph/1ph
EMBP25-3-W	25A	PMU-10 and EP10	3ph
EMBP32-3-W	32A	PMU-20 and EP20	3ph
EMBP40-3-W	40A	M10 (3ph/1ph)	3ph/1ph
EMBP50-3-W	50A	PMU-30, EP30	3ph
EMBP63-3-W	63A	EP40, M15 and PMU-40	3ph
EMBP100-3-W	100A	EP60/80 & PMU-60/80 and PMU+ 60/80	3ph
EMBP140-3-W	140A	EP100, PMU-100 and PMU+100	3ph
EMBP25-1-R	25A	ENDURO 6kVA & GP 804/806	1ph
EMBP40-1-R	40A	ENDURO 10kVA	1ph

Description
Product Downloads
Applications

Make-before-break design: The UPS bypass panel guarantees safe load transfer between UPS and mains without interruption.
3-position switch: Normal / Bypass / Bypass & Isolate for flexible UPS control.
Mechanical interlock: Prevents accidental backfeed between sources.
Synchronisation cable connection: The bypass switch for UPS models supports controlled switch-over with UPS and mains feed alignment.
Wired to terminal strips: Simplifies installation and maintenance.
Includes Earth and Neutral bars: Ensures compliance and safe operation.
Wall-mounted or rack-mounted options: Designed to suit space and installation needs.
Built to Australian Standards: Trusted quality, locally made in Melbourne.
Custom solutions available: Our UPS external bypass models can be customised to your project specs.

Product Downloads

Applications

UPS system servicing or hot-swapping
Power continuity in critical environments (data centres, healthcare, industrial)
Backup integration with online or line-interactive UPS
Compliance upgrades requiring external bypass modules

Customers who trust us

Customer
Testimonial

PSS Distributors has been a supplier of mine for 15 years across various companies, there assistance in sizing UPS and making recommendations is always spot on. They are easy to work with, friendly, and professional to deal with, making every interaction a pleasure.

Amazing service from the Wangara team. Craig & Mary helped pick my order and had it processed and delivered as soon as we needed. Always amazing to deal with. Very happy customer. Thank you again.

Anthony is always fantastic to deal with and is efficient in processing and getting our orders sent out. Great UPS products that we use in our Security Business.

We are a CCTV Wholesaler and have used PSS Distributors for the last 18 years for our UPS, Power supplies and Racks. They have always been an exceptionally friendly, helpful and knowledgeable company to deal with. Roger and his team have always supported us over these years and I highly recommend Roger (PSS Distributors) and his products

We have used PSS Distributors for a long time for all our UPS and equipment rack needs and they have always been a friendly and helpful company to deal with. Many thanks to Rover and Kris for their effort and support over the years.

We are a security wholesaler (CSM) based in WA and have worked with PSS for many years. The team in WA are always ready to go above and beyond to ensure we have supply and assistance with projects. As a UPS and other product supplier these guys have my tick of approval.

Dealing with PSS over many years we depend on the staff to help us choose and then offer to your customers from there stock, we even send customers direct to them so PSS can work out what they need for us its hard to keep up with the ever changing products. In short fantastic service and products.