Eaton CB2533T120480KAX7 Pringle bolted pressure contact switch - UL Listed
Part Number: CB2533T120480KAX7
Quick Summary
Eaton CB2533T120480KAX7 bolted pressure contact switch delivers high-current protection for industrial switchgear. This solution addresses downtime risks caused by undersized protection and unreliable trips by offering a robust electric trip with charge-before-close, interlock, and fusible protection. UL Listed and compatible with a range of NEMA-rated enclosures ensure safe operation in demanding environments. Designed for top-feed installations and three-pole configurations, it supports 480 V systems while still offering 120 V control circuits. By combining rugged performance with flexible accessory options, this device helps maintain uptime and compliance across power-distribution networks. Facilities seeking reliable high-current switching and clear fault indication appreciate its standardized footprint and availability of optional Ground Fault Relay, Blown Fuse Detection, and Auxiliary Contacts.
Product Information
Extended Description
CB2533T120480KAX7 Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with no lights (trips switch),2500A,2NO-2NC,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480KAX7
UPC
782116952069
Product Length/Depth
17 in
Product Height
28 in
Product Width
28 in
Product Weight
205 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Catalog Notes
OPTIONAL Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, Auxiliary Contact Provisions, AVAILABLE.
Contact configuration
2 NO-2 NC
Feed type
Top
Fuse configuration
Top feed
Ground
No ground fault
Number Of Poles
Three-pole
Number of wires
3
Switch type
Electrical trip with charge-before-close mechanism
Type
Pringle bolted pressure contact switch
Amperage Rating
2500A
Control voltage
120 V
NEMA rating
NEMA 1, NEMA 3R, NEMA 4, NEMA 12
Protection
Fusible
System voltage
480 V
Voltage - max
480 V
Voltage rating
480 V
Special features
Interlock, BFD with no lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB2533T120480KAX7
Feature: 2500A amperage rating and 480V system voltage with 120V control voltage. Business impact: enables handling large feeders and high-load scenarios with reliable protection, reducing the risk of nuisance trips and equipment damage. Application: ideal for heavy-duty switchgear, motor control centers, and process plant feeders. Feature: 2 NO-2 NC contact configuration. Business impact: provides flexible control logic for monitoring, interlocking, and signaling, streamlining control wiring. Application: safety interlock circuits and monitoring loops in distributed power systems. Feature: Top feed and fusible protection. Business impact: simplifies wiring density and service access while delivering proven overcurrent protection. Application: retrofit or new installations in compact switchgear enclosures where top-entry is preferred. Feature: Interlock with no lights (BFD) and charge-before-close mechanism. Business impact: enhances operator safety by preventing premature closure and reducing mis-trips. Application: safety-critical interlock applications in MCCs and switchgear assemblies. Feature: Optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection catalog options. Business impact: extended protection coverage and fault-detection capabilities that minimize downtime and improve reliability. Application: facilities requiring enhanced fault-awareness and diagnostic visibility. Feature: Certifications and enclosure compatibility (UL Listed, NEMA 1/3R/4/12 ratings). Business impact: ensures compliance with safety standards and durable operation in diverse environments. Application: regulated industrial facilities and harsh installations. Feature: Physical footprint and performance specs (Three-pole, 3 wires, 2500A, 480V, 28 in width/height, 17 in depth, 205 lb). Business impact: informs installation planning, anchoring, and maintenance scheduling for robust, long-life service. Application: large electrical rooms and switchgear enclosures requiring sturdy, high-capacity switching.
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FAQs
Installation accommodates a three-pole, three-wire setup with top-feed wiring and 120 V control circuits. Plan for a 28 in by 28 in footprint with a 17 in depth, and account for the 205 lb weight to determine lifting, anchoring, and access clearance. The 2 NO-2 NC configuration supports flexible interlocking and signaling wiring, while optional accessories like auxiliary contacts can be added to match control logic requirements.
The CB2533T120480KAX7 is rated for 2500A with a system voltage of 480 V and a 120 V control circuit. It uses fusible protection to guard against overcurrent and features a charge-before-close mechanism and interlock to prevent unsafe closures. These specifications make it suitable for high-load feeders, MCCs, and critical distribution paths in harsh industrial environments.
Yes. The unit includes interlock features (Interlock, BFD with no lights) and a charge-before-close mechanism, which are essential for preventing unintended closures in safety-critical circuits. It is designed for robust performance in demanding manufacturing environments and supports optional safety and signaling enhancements through accessory options.
The CB2533T120480KAX7 is UL Listed, indicating compliance with recognized electrical safety standards. It also boasts NEMA ratings including 1, 3R, 4, and 12, guiding enclosure selection for various environmental conditions. These certifications and ratings support regulatory compliance and reliable operation in industrial settings.
Its high-current rating, rugged construction, and robust protection features (interlock, fusible protection, optional fault-detection), reduce unplanned downtime and maintenance frequency. The availability of optional accessories such as Ground Fault Relay and Blown Fuse Detection improves fault visibility and diagnostics, contributing to longer service intervals and a lower total cost of ownership.