Eaton CB2533T120480GRAX Pringle bolted pressure contact switch - UL Listed
Part Number: CB2533T120480GRAX
Quick Summary
The Eaton CB2533T120480GRAX bolted pressure contact switch delivers reliable single-phase protection for industrial switchgear. This device helps prevent costly outages by using a capacitor trip mechanism (SPVR) with a ground fault detector to coordinate fast, selective tripping. When you’re sizing feeders and planning maintenance, you need a trusted, UL Listed solution that fits your enclosure and wiring schemes. The unit supports NEMA 1, 3R, 4, and 12 enclosures, offering versatile installation in diverse environments. With a 480 V system rating, 2500 A protection, and a 120 V control voltage, it integrates with standard control circuits while reducing total cost of ownership and installation complexity.
Product Information
Extended Description
CB2533T120480GRAX Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),2500A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480GRAX
UPC
782116952182
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 no lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Feature: High current protection up to 2500 A. Business Impact: Enables use with large feeders and heavy motor loads without crowded gear or multiple devices, lowering enclosure footprint and long-term maintenance costs. Application: Large motor feeders and high-demand Power Distribution Units (PDUs). Long-tail keywords: high current switchgear protection, 2500A protection, three-pole protection. Feature: Single-phase relay with capacitor trip device (SPVR). Business Impact: Delivers faster, coordinated trips that minimize collateral outages and improve system reliability. Application: Industrial distribution networks requiring reliable fault clearing with minimal downtime. Long-tail keywords: capacitor trip device, SPVR protection, selective tripping. Feature: Top feed and fusible topology. Business Impact: Simplifies wiring and reduces installation time by aligning with common top-entry configurations, improving serviceability. Application: Retrofit projects and new installations in compact switchgear. Long-tail keywords: top feed switch, fusible protection, easy installation. Feature: Ground fault protection with control power transformer. Business Impact: Enhances personnel safety and equipment protection by detecting ground faults early and coordinating with control power. Application: Industrial facilities with critical safety requirements. Long-tail keywords: ground fault relay, control transformer, safety protection. Feature: Robust enclosure compatibility (NEMA 1, 3R, 4, 12) and UL Listed. Business Impact: Broadens application in diverse environments while ensuring safety compliance and streamlined procurement. Application: Enclosures ranging from indoor service areas to outdoor or harsh environments. Long-tail keywords: UL Listed protection, NEMA compatibility, enclosure versatility. Additional advantages: Three-pole, three-wire configuration with 480 V system voltage and 120 V control voltage supports seamless integration with existing control networks, reducing integration risk and accelerating deployment.
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FAQs
Install the CB2533T120480GRAX with the top feed enabled as specified in Eaton’s installation notes. Use the three-pole, three-wire arrangement and connect the 120 V control circuit to the control power transformer. Ensure the enclosure is rated for the NEMA requirements (1, 3R, 4, 12) and secure the unit to its mounting surface to prevent vibration. Follow all safety procedures for high-current devices and verify proper grounding.
Key ratings include 2500 A amperage, 480 V system voltage, and 120 V control voltage. The switch supports NEMA 1, 3R, 4, and 12 enclosures and uses a fusible protection scheme. It is designed for three-pole, three-wire configurations and is UL Listed, ensuring safety compliance in industrial environments.
Yes. The unit supports ground fault protection with a control power transformer and offers optional features such as a Ground Fault Relay and Blown Fuse Detection. This combination improves safety by detecting insulation faults and coordinating protective trips with minimal disruption to operation.
Top-feed designs simplify wiring access and reduce conduit runs, which can cut installation time. SPVR (single-phase capacitor trip devices) provide fast, selective tripping. When planning, verify enclosure accessibility, ensure proper cable sizing for 480 V systems, and confirm compatible protective devices are in place to coordinate with the SPVR trip mechanism.
The product follows Eaton’s standard warranty policy: one year from installation or eighteen months from shipment, whichever comes first. For technical support, refer to the Eaton Selling Policy 25-000 and use the provided catalog notes to identify optional features such as Ground Fault Relay and Auxiliary Contact Provisions.