200A 3-Pole Non-Fusible Switch Disconnect

Product Highlights

• ABB OT-series non-fusible disconnect switch
• Catalog number OT200U03
• 200A general-purpose ampere rating
• 3-pole configuration
• Front operated
• Base mounted
• Operating mechanism at the left end of the switch
• UL 98 / CSA C22.2 No. 4 configuration
• Maximum operating voltage up to 600V
• Non-fusible switching design
• Terminal bolt kit included
• Handle and operating shaft are not included with the base switch

The OT200U03 is a three-pole, front-operated, base-mounted disconnect switch with its operating mechanism located at the left end of the switch body. ABB identifies the U-series construction as front-operated, base-mounted equipment for UL/CSA applications. :contentReference[oaicite:1]{index=1}

The switch uses a modular disconnect construction that can be combined with compatible external handles, operating shafts, auxiliary contacts, neutral links, interlocking components, terminal shrouds, phase barriers, and other accessories as required by the final assembly.

The base OT200U03 switch includes a terminal bolt kit, while the external operating handle and shaft are selected separately. :contentReference[oaicite:2]{index=2}

ABB's installation documentation for OT200-250 disconnect switches identifies several compatible accessory categories that may be used depending on the final switch configuration. :contentReference[oaicite:6]{index=6}

• Terminal clamps
• Terminal shrouds
• Phase barriers
• Auxiliary contacts
• Direct-mounted handles
• Neutral links
• Auxiliary contact modules
• Interlocking components
• Fourth-pole accessories
• External operating handles and shafts

ABB's OT200-250 installation instructions provide UL 98 clearance information for OT200U-series switches and specify minimum enclosure dimensions or equivalent volume for compatible installations. :contentReference[oaicite:7]{index=7}

The published minimum enclosure reference for the OT200U configuration is approximately 406 mm high × 255 mm wide × 152 mm deep (16" × 10" × 6"), subject to conductor size, clearances, accessory configuration, and the complete installation. :contentReference[oaicite:8]{index=8}

ABB's installation instructions identify terminal clamp and shroud accessories for the OT200 family and state that the PB100Low phase barrier is mandatory in the configuration shown in the manufacturer instructions. :contentReference[oaicite:9]{index=9}

The same instructions show an M8 terminal connection torque range of 15-22 Nm (133-195 lb-in) for the illustrated OT200-family terminal arrangement. Always follow the exact instructions applicable to the conductor and terminal configuration being installed. :contentReference[oaicite:10]{index=10}

• Confirm catalog number OT200U03 before ordering.
• Verify that a 200A, three-pole, non-fusible disconnect is appropriate for the application.
• Confirm system voltage and complete equipment ratings.
• Provide appropriate upstream or downstream overcurrent protection as required.
• Select the compatible external handle and operating shaft separately.
• Verify enclosure size, conductor bending space, and UL 98 clearances.
• Install required phase barriers, terminal shrouds, or other accessories where specified.
• Use manufacturer-approved terminal hardware.
• Follow ABB conductor and torque requirements.
• Maintain required electrical working clearances.
• De-energize all equipment before installation or service.
• Verify absence of voltage before working on electrical equipment.
• Installation should be performed by qualified electrical personnel.
• Follow current ABB instructions and applicable electrical codes.