Eaton CB2533T120480GRA Pringle Bolted Switch - UL Listed
Part Number: CB2533T120480GRA
Quick Summary
Eaton pringle bolted pressure contact switch provides reliable protection for high-current electrical systems for industrial power distribution and control panels. Engineers often contend with costly downtime caused by improper protection configurations and difficult maintenance. UL Listed certification ensures safety compliance, while NEMA ratings 1, 3R, 4 and 12 support rugged industrial enclosures. The CB2533T120480GRA delivers SPVR functionality with capacitor trip and optional ground-fault relay for top-fed, three-pole protection in 480 V systems, delivering safer, code-compliant high-current switching in distribution cabinets.
Product Information
Extended Description
CB2533T120480GRA Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three on lights (does not trip),2500A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480GRA
UPC
782116952137
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.
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
Single-phase voltage relay with capacitor trip device (SPVR), BFD with three normally on lights (does not trip)
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 - CB2533T120480GRA
Selling Policy 25-000 - Distribution and Control Products and Services
High-current switching capability is delivered by a 2500A amperage rating and a 480 V system voltage, enabling robust protection for feeders and switchgear. This translates to reduced fault-related downtime and protection of expensive motors and transformers. Ideal for large-scale distribution panels and motor-control centers in industrial facilities. Feature SPVR is a single-phase voltage relay with capacitor trip device, providing coordinated, fast protection for single-phase branches with capacitor banks. Business impact includes reduced nuisance trips and improved coordination with capacitor banks, lowering maintenance costs. This configuration is well-suited for 480 V distribution lines and panels where reliable protection is critical. Feature Top feed and fusible protection simplify installation and cabinet layout, reducing wiring complexity and speeding commissioning. The design supports straightforward enclosure integration and safer fault isolation in densely populated switchgear assemblies. Feature UL Listed safety certification and NEMA 1, 3R, 4, 12 compatibility ensure compliance across harsh industrial environments. Optional Ground Fault Relay and auxiliary contact provisions offer enhanced monitoring and control, supporting modern protection schemes and easier integration with building management systems. In practice, these features translate to safer operations, easier preventive maintenance, and longer asset life for distribution panels and control cabinets.
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FAQs
CB2533T120480GRA is intended for top-feed, three-pole installations in 480 V systems. During installation, verify correct phase alignment, sufficient clearance for the 205 lb enclosure, and proper connector sizing. If monitoring features are required, consider the optional ground fault relay or auxiliary contacts, and follow catalog guidance for grounded power transformers.
The switch delivers 2500 A amperage rating and 480 V system voltage with 120 V control voltage and fusible protection. It supports NEMA 1, 3R, 4, and 12 enclosures, enabling reliable operation in tough industrial environments. These specs ensure high-current handling, safe control-power integration, and compatibility with industrial switchgear and distribution panels.
Yes. The CB2533T120480GRA supports SPVR with capacitor trip and offers optional Ground Fault Relay. These features support single-phase protection in 480 V circuits and improve fault detection, coordination with capacitive loads, and personnel safety in distribution cabinets and switchgear assemblies.
The product is UL Listed for safety certification and is compatible with NEMA ratings 1, 3R, 4, and 12 for rugged industrial environments. Catalog notes also indicate optional features such as Ground Fault Relay and auxiliary provisions, ensuring alignment with Kirk provisions and broader protection schemes.
Expect a maintenance focus on inspecting fusible protection elements, SPVR components, and contact wear during scheduled preventive maintenance. ROI stems from reduced downtime, longer service life of feeders, and lower replacement costs in critical power distribution applications, backed by UL safety certification and robust NEMA enclosure compatibility.