• Eaton 9155MBS15KVA 15kVA black tower UPS with digital display and vents
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Eaton

Eaton 9155MBS15KVA | 9155 UPS Maintenance Bypass Switch, 15kVA, Wall Mount

Eaton 9155MBS15KVA | 9155 UPS Maintenance Bypass Switch, 15kVA, Wall Mount

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9155MBS15KVA

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Description

The Eaton 9155MBS15KVA is a 15kVA wall mount maintenance bypass switch designed for the Eaton 9155 online UPS family. It provides a make-before-break wrap-around bypass, allowing the UPS to be serviced or replaced without shutting down the connected load, which makes it a practical addition to server rooms and critical infrastructure where uptime matters.

Housed in a metal enclosure, the switch is mounted on the wall within sight of the UPS. Knockouts are provided for AC line input, UPS input, UPS output and load wiring, helping electricians complete a clean external bypass installation alongside a 15kVA 9155 UPS.

Features

- Wrap-around maintenance bypass lets the UPS be serviced without shutting down the load
- Make-before-break transfer design
- Wall mounted within sight of the UPS
- Knockouts for AC line input, UPS input, UPS output and load wiring
- Metal enclosure for durable installation

Warranty

• Standard UPS (with VRLA batteries): 2–3 year warranty
• Lithium-ion UPS (up to 3kVA): 5-year warranty
Extended Warranty Options:
Extended Eaton UPS warranties are available through IP Trading. Contact us to discuss a plan that suits your power protection needs.
https://www.eaton.com/us/en-us/catalog/services/ups-services/understanding-your-eaton-ups-warranty-.html

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

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Technical Specifications

- Type: External maintenance bypass switch
- Rating: 15kVA, 5500W
- Mounting: Wall mount
- Enclosure: Metal
- Compatible UPS: Eaton 9155 15kVA online UPS

FAQs

Q: Which UPS is the Eaton 9155MBS15KVA designed for?
A: It is an external maintenance bypass switch for the Eaton 9155 online UPS family, in the 15kVA rating.

Q: What does a maintenance bypass switch do?
A: It provides a wrap-around bypass path so the connected load can stay powered from the AC line while the UPS is serviced, tested or replaced.

Q: How is the 9155MBS15KVA mounted?
A: It is a wall mount unit installed within sight of the UPS, with knockouts for AC line input, UPS input, UPS output and load wiring.

Q: Does it need to be installed by an electrician?
A: Maintenance bypass switches are hard-wired between the AC supply, the UPS and the load, so installation should be carried out by a qualified electrician in line with local wiring rules.

Q: What is the power rating of this bypass switch?
A: It is rated for 15kVA and 5500W.

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Eaton Authorised Partner of the Year 2026 Australia Winner – IP Trading

Recognised by Eaton, two years running

We have been awarded as Eaton Authorised Partner of the Year 2026 - Australia, our second consecutive year of recognition.

As an authorised Eaton partner in Australia, we supply genuine Eaton UPS systems, rack PDUs and enterprise power protection solutions with expert product advice, fast turnaround, and reliable fulfilment.

Learn about our Eaton Partner Award

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Use our Eaton UPS Selection Guide to compare UPS models, power capacity, runtime, and applications.

Learn how to correctly size a UPS for servers, network equipment, and critical IT infrastructure to ensure reliable backup power and protection from outages.

View the Eaton UPS Sizing Guide

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