ABB OT200U03C 3-Pole 200A Non-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$6,226.17
ABB OT200U03C 3-Pole 200A Non-Fusible Transfer Switch, Open Transition

ABB OT200U03C 3-Pole 200A Non-Fusible Transfer Switch, Open Transition

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Model: OT200U03C

In Stock (leaves warehouse same day if ordered before 3pm ET)

$6,226.17
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ABB OT200U03C 3-Pole 200A Non-Fusible Transfer Switch, Open Transition

The ABB OT200U03C is a 3-pole, 200A change-over (transfer) switch engineered for open-transition switching between two independent power sources, such as a utility feed and a standby generator. This non-fusible (NF) transfer switch is built for dependable manual load-transfer applications in commercial and industrial electrical distribution systems where a facility must reliably alternate between a primary and a backup power source without paralleling the two. The operating handle and shaft are not included with this switch body and must be ordered separately to complete a functional installation.

Key Features

  • Amperage Rating: 200A change-over switch sized for medium-duty three-phase transfer applications.
  • Pole Configuration: 3-Pole design for switching three-phase power circuits between sources.
  • Switching Type: Open transition change-over operation, breaking contact with the active source before making contact with the alternate source, preventing momentary paralleling of the two supplies.
  • Non-Fusible (NF) Construction: A non-fusible switch body simplifies long-term maintenance by eliminating internal fuse elements and the need for fuse replacement.
  • Handle and Shaft Sold Separately: The matching operating handle and shaft must be ordered separately to complete a functional, operable transfer switch installation.
  • Compact Switch Body: Designed as the core switching mechanism for change-over duty, suitable for panel and enclosure mounting by a qualified electrician.
  • Packaging: Supplied 1 each for individual installation needs.

Technical Specifications

  • Country of Origin: UKN
  • Packaging: 1 ea

Typical Applications

  • Emergency and Standby Power Transfer Systems
  • Generator Change-Over Switching
  • Commercial and Industrial Electrical Distribution
  • Panelboard and Switchgear Installations
  • Manual Backup Power Transfer Systems
  • Facilities Requiring Non-Paralleled Dual-Source Switching

Why ABB?

ABB's OT-series change-over switches are engineered for dependable, code-compliant performance in demanding transfer-switching applications. The 3-pole, 200A, non-fusible OT200U03C offers straightforward open-transition operation for facilities that need a robust, low-maintenance solution for alternating between power sources without paralleling. As a global manufacturer of electrical distribution equipment, ABB designs its transfer switches to integrate cleanly into panelboards and switchgear assemblies alongside a properly specified handle and shaft. Choosing ABB for change-over switching supports a consistent, professional-grade electrical distribution system built around components engineered to work together.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Transfer Switch
Amperage Rating:
200A
Configuration:
3-Pole
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Transfer Switches

ABB OT200U03C – Frequently Asked Questions

1) Does the ABB OT200U03C transfer switch come with an operating handle?
No. The OT200U03C ships as the switch body only. The matching operating handle and shaft have to be ordered separately before the switch can actually be operated, so budget for those two items on the same order or you will have a 200A change-over switch you cannot throw.
2) Is the ABB OT200U03C an automatic transfer switch or a manual one?
It is a manual change-over switch. The OT200U03C is built for manual load transfer between two independent sources, such as a utility feed and a standby generator, and it is operated through a handle and shaft that mount to the switch body. If you need the generator to pick up the load without someone present, this is the wrong device type.
3) What does open transition mean on the ABB 200A change-over switch, and when do I need closed transition instead?
Open transition means the switch breaks contact with the live source before it makes contact with the alternate source, so the utility and the generator are never connected together, even momentarily. The trade-off is a brief dead interval during the changeover, which the load will see. If your facility cannot take that blip, or your utility requires paralleling for a no-break return, an open-transition device like the OT200U03C is not what you want.
4) Will the ABB OT200U03C switch a three-phase service?
Yes. It is a 3-pole switch rated 200A, so it switches all three phase conductors of a three-phase circuit between the two sources. The neutral is not switched by a 3-pole device, so if your system requires a switched neutral (a separately derived generator with its own bonded neutral, for example), you need a 4-pole arrangement rather than this one.
5) Does the ABB OT200U03C take fuses?
No, it is non-fusible. There are no internal fuse elements to replace, which keeps long-term maintenance down, but it also means the switch provides no overcurrent protection on its own. Upstream or downstream overcurrent protection sized for the 200A rating has to come from breakers or a fused disconnect elsewhere in the distribution.
6) Can I mount the ABB OT200U03C inside my own enclosure or panelboard?
Yes. The OT200U03C is supplied as the core switching mechanism for change-over duty and is intended to be mounted into a panel or enclosure by a qualified electrician, with the handle and shaft kit selected to suit the depth of that enclosure. It is commonly used in panelboard and switchgear assemblies and in commercial and industrial distribution gear.
7) What is the ABB part number to quote for a 200A 3-pole non-fusible change-over switch?
The part number is OT200U03C, from ABB's OT series of change-over switches. That single designation covers the 200A, 3-pole, non-fusible open-transition switch body. Handle and shaft carry their own part numbers and are quoted as separate lines.
8) Is one ABB OT200U03C enough for a single generator changeover, or do I need two?
One is enough for a single two-source changeover. The OT200U03C is a single change-over device that selects between a primary and an alternate supply, not a pair of interlocked switches, and it is supplied one each. What you add alongside it is the handle and shaft kit, plus whatever enclosure and overcurrent protection the installation calls for.
9) Where do full ratings and dimensional data for the ABB OT200U03C come from?
ABB publishes a spec sheet for the OT series that carries the detailed ratings and mounting data, and it is linked from the product record as a PDF. Use it to confirm terminal capacity and cutout dimensions against your enclosure before fabrication.
How fast can I get the ABB OT200U03C delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ABB OT200U03C come with a warranty?
Absolutely. The ABB OT200U03C is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ABB OT200U03C?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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