Eaton CB2533B120480GRAX5 Bolted Pressure Switch UL Listed
Part Number: CB2533B120480GRAX5
Quick Summary
Eaton pringle bolted pressure contact switch is a high-capacity fault protector for industrial power distribution. Maintenance teams often struggle with bulky gear and complex wiring that slow commissioning and increase downtime. UL Listed certification ensures safety compliance, and the unit supports rugged NEMA environments for harsh industrial installations (NEMA 1, 3R, 4, 12). With a 2500A amperage rating, 480V system voltage, and 120V control voltage, it integrates smoothly with standard plant controls while enabling scalable protection. This combination delivers reliable protection, reduces downtime, and aligns with industrial-grade switchgear requirements for modern facilities.
Product Information
Extended Description
CB2533B120480GRAX5 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),2500A,1NO-1NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480GRAX5
UPC
782116952748
Product Length/Depth
17 in
Product Height
32 in
Product Width
28 in
Product Weight
235 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
1 NO-1 NC
Feed type
Bottom
Fuse configuration
Bottom 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
Eaton Specification Sheet - CB2533B120480GRAX5
Feature: 2500A amperage rating with 480V system voltage. Business Impact: enables heavy-load protection for large motors and feeders without the need for multiple devices, improving reliability and reducing footprint. Application: suitable for high-current distribution in industrial plants. Feature: Three-pole, 1NO-1NC contact configuration. Business Impact: flexible control wiring minimizes wiring errors and simplifies interlock logic. Application: three-wire protection schemes in complex switchgear assemblies.Feature: Bottom feed option and bottom fuse configuration. Business Impact: space-saving installation and easier integration into existing cabinets, reducing retrofit time and labor costs. Application: retrofit projects and new installations with limited clearance.Feature: Ground fault with control power transformer. Business Impact: enhances safety with ground fault detection while maintaining control power integrity, decreasing fault investigation time. Application: protection for essential feeders in control centers and motor drives.Feature: Single-phase voltage relay with capacitor trip device (SPVR). Business Impact: fast, reliable tripping with reduced nuisance trips, boosting system availability. Application: single-phase protection across distribution panels and switchgear.Feature: NEMA ratings and fusible protection (NEMA 1, 3R, 4, 12; Fusible). Business Impact: proven enclosure compatibility and protective reliability in varied environments, supporting regulatory compliance. Application: harsh environments, wash-down areas, and exposed installations. Feature: Optional ground fault relay, blown fuse detection, and auxiliary provisions (Catalog Notes). Business Impact: modular safety enhancements and easier upgrades without changing primary protection devices. Application: scalable protection architectures for evolving facilities. Feature: UL Listed certification and robust build (. Safety and installation compatibility). Business Impact: streamlines procurement, audits, and maintenance planning with recognized industry standards. Application: factory floors, distribution centers, and processing plants where uptime matters.
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FAQs
Install the CB2533B120480GRAX5 using its bottom feed configuration to align with bottom-mounted bus bars. Ensure proper grounding, connect the three wires to the 1NO-1NC contacts, and integrate the control voltage (120V) to the circuit protection/logic circuit. Adhere to UL guidelines and utilize optional Kirk or auxiliary contact provisions if required for interlocks.
Best suited for high-current motor feeders and large distribution panels in industrial plants. With a 2500A rating and 480V system voltage, it supports heavy loads, while the SPVR capacitor trip device provides reliable single-phase protection in complex switchgear packages.
This device is UL Listed and supports multiple NEMA environments, including NEMA 1, 3R, 4, and 12. These certifications and ratings ensure safety compliance and rugged performance in a range of industrial environments.
Yes. Catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions are AVAILABLE. These options enable scalable protection without replacing the core switch, supporting evolving facility safety requirements.
Maintenance focuses on periodic inspection of contacts, wiring integrity, and verification of the capacitor trip device. Its high-current capacity and protective features reduce unplanned downtime, lower maintenance intervals for parallel devices, and improve overall operator safety and equipment reliability, delivering favorable total cost of ownership in demanding environments.