Eaton CB2533T120480KGRAX7 Pringle Bolted Switch - UL Listed
Part Number: CB2533T120480KGRAX7
Quick Summary
The Eaton pringle bolted pressure contact switch provides rugged, high-current protection for industrial power systems. Operators struggle with reliable trip timing, fault detection, and coordination across large switchgear assemblies. UL Listed certification supports compliance, while this unit offers NEMA 1, 3R, 4, and 12 ratings for versatile enclosure protection. Designed for top-feed, three-pole operation with fusible protection, it delivers reliability and ease of integration into existing Eaton switching devices catalogs. Leverage this solution to minimize downtime, improve fault response, and meet demanding industrial standards. With 2500 A amperage rating and 480 V system compatibility, it aligns with large motor loads and feeder protection.
Product Information
Extended Description
CB2533T120480KGRAX7 Eaton: Eaton pringle bolted pressure contact switch,Interlock, single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),2500A,2NO-2NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480KGRAX7
UPC
782116951901
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
Ground fault with control power transformer
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, single-phase voltage relay with capacitor trip device (SPVR), 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 - CB2533T120480KGRAX7
Feature: 2500A amperage rating and 480V system voltage. Business Impact: Enables direct switching of heavy feeders with fewer devices, reducing wiring, cabinet space, and installation cost. Application: Ideal for main feeders and large motor control centers in manufacturing and processing plants. Feature: 2 NO-2 NC contact configuration. Business Impact: Flexible control schemes, easy interlocking, and scalable protection logic to support complex protection schemes. Application: Suitable for interlocked safety circuits and coordinated protection in switchgear assemblies. Feature: Top feed and fusible protection. Business Impact: Simplifies panel layout and provides efficient fault isolation through selective fuse protection. Application: Preferred in top-feed configurations for compact switchgear and easy maintenance. Feature: Ground fault with control power transformer (optional ground fault relay). Business Impact: Improves safety and fault visibility, reducing arc flash risk and unplanned downtime. Application: Essential for circuits requiring ground fault detection in safety-critical equipment. Feature: Interlock, SPVR, and BFD with no lights. Business Impact: Fast, reliable trip sequences with capacitor trip device logic, enhancing protection reliability. Application: Protective schemes demanding quick response and coordination in 3-phase power systems. Feature: NEMA-rated enclosure compatibility and UL Listed certification. Business Impact: Streamlines compliance and installation in diverse environments, from harsh plants to clean rooms. Application: Fits standard industrial enclosures and meets robust safety requirements for switchgear upgrades.
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FAQs
CB2533T120480KGRAX7 uses a top-feed, three-pole configuration with 2NO-2NC contacts and fusible protection. For best results, position the unit in a compatible enclosure rated for NEMA 1, 3R, 4, or 12, ensure proper wiring for a 480V system with a 120V control circuit, and plan for optional ground fault relay integration where required by safety standards.
Yes. The catalog notes indicate optional ground fault relay and a ground fault configuration with a control power transformer. If your safety scheme requires monitoring ground faults, select the appropriate accessory to enable early fault detection and improved fault isolation within three-pole protection schemes.
This switch is rated for 2500A with a system voltage of 480V and a 120V control voltage. It supports NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 enclosure types, enabling flexible deployment in a wide range of industrial environments and reducing the need for enclosure swaps during upgrades.
The unit is UL Listed, indicating it meets established safety standards for electrical devices used in industrial settings. This certification supports compliance with corporate safety programs and regulatory audits, and it can simplify procurement by aligning with common industrial safety requirements across facilities.
Expected benefits include reduced downtime due to reliable trip timing and fault detection, fewer components because of the high-current 2500A rating, and easier maintenance through top-feed design and optional ground fault protection. Over time, these factors translate to lower maintenance costs and improved system availability, justifying the initial integration with existing switchgear.