ABB
Pro-Stock XT4 3-Pole Main Breaker Kit
- SKU:
- MBB33
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 10.29 LBS
Description
Pro-Stock XT4 3-Pole Main Breaker
Kit
ABB MBB33 is a Pro-Stock main breaker kit for a three-pole XT4 application. Confirm the panelboard interior and breaker compatibility using ABB’s catalog information.
Confirm the panelboard interior, breaker configuration and complete kit requirements against the exact ABB catalog number before ordering.
Protection & Design
XT4 Breaker Application
MBB33 is the Pro-Stock kit for a three-pole XT4 main breaker. Match the breaker and interior to the approved panel configuration.
Panelboard Integration
The kit connects the selected breaker arrangement with the compatible interior. Review the complete Pro-Stock assembly before ordering.
Frame Compatibility
The exact XT4 catalog number and mounting configuration determine fit. Match the breaker frame to the kit and panelboard requirements.
Assembly Requirements
Enclosure compatibility and installation hardware must suit the kit. Review the approved XT4 arrangement before planning the assembly.

Ask Willy: Need Help Selecting This ABB Main Breaker Kit?
Send us the ABB catalog number, equipment model and required main breaker kit configuration so our team can help review your selection.
Email the GetPipe.com TeamVisit Quick SupportBefore You Select
Match the ABB catalog number for the selected main breaker kit to the required equipment and application.
Confirm the applicable electrical ratings, enclosure requirements and selected model configuration.
Verify mounting, conductor or terminal requirements, required accessories and equipment compatibility.
Product Questions
Will this main breaker kit fit my panelboard just because the series matches?
Match the kit to the exact panelboard interior and approved breaker arrangement. Review system voltage, phase, breaker frame and mounting configuration; a shared series name does not establish fit.
What should I review before changing a panelboard to this main-breaker arrangement?
Confirm the interior, specified breaker, enclosure and required installation components as one assembly. The kit must suit the intended main configuration and the exact panelboard catalog number.
How do I avoid confusing a main breaker kit with the complete panelboard assembly?
Review the kit’s required breaker, interior, enclosure and installation components together. Confirm the exact kit configuration and what the project still requires before treating the selection as a complete main-breaker assembly.
The configuration and installation requirements of this main breaker kit depend on the exact ABB catalog number. Verify electrical ratings, physical fit, required components and approval for the complete equipment assembly.