Eaton CB2533T120480GRAX5 Pringle bolted switch - UL Listed
Part Number: CB2533T120480GRAX5
Quick Summary
CB2533T120480GRAX5 pringle bolted pressure contact switch is a high-capacity protection device designed for three-pole, 480V power distribution panels. This device provides robust protection with an SPVR capacitor trip option, helping prevent nuisance trips during startup and fault events. In demanding facilities, minimizing downtime and preventing equipment damage are top priorities, and reliable protection is non-negotiable. The unit carries UL Listed certification and supports integration with NEMA 1, 3R, 4, and 12 enclosures, delivering practical compatibility across industrial environments. Its top-feed configuration and fusible protection streamline installation in space-constrained panels, while a 2500A amperage rating supports large feeders. For engineers seeking dependable protection with straightforward maintenance, this Eaton switch offers clear business value.
Product Information
Extended Description
CB2533T120480GRAX5 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,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480GRAX5
UPC
782116952175
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
1 NO-1 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
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 - CB2533T120480GRAX5
Feature: 2500A Amperage Rating. Business Impact: Handles very large feeder currents, reducing nuisance trips and protecting feeders from overcurrent damage. Application: Large distribution panels and motor control centers. Long-tail keywords: high-current protection, heavy-duty electrical switch, feeder protection. Feature: SPVR capacitor trip device. Business Impact: Improves trip coordination and selectivity, enabling faster fault clearance without compromising system stability. Application: Protective relays in industrial power networks. Long-tail keywords: capacitor trip device, single-phase protection, trip coordination. Feature: Three-pole, top-feed, fusible protection. Business Impact: Simplifies wiring, enables reliable fault isolation, and supports modular panel design. Application: Space-constrained switchgear installations in factories. Long-tail keywords: top-feed protection, three-pole switch, fusible configuration. Feature: Ground fault with control power transformer. Business Impact: Enhances safety and fault detection, meeting critical ground fault protection requirements. Application: Safety-conscious power distributions in manufacturing and processing plants. Long-tail keywords: ground fault protection, control transformer, safety interlock. Feature: UL Listed and NEMA-rated compatibility. Business Impact: Ensures regulatory compliance and enclosure versatility across diverse industrial environments. Application: Panels requiring certified protection with broad enclosure acceptance. Long-tail keywords: UL Listed, NEMA ratings, industrial certification. Feature: Installation and maintenance practicality. Business Impact: Top-feed design and auxiliary provisions simplify retrofit and ongoing service, reducing maintenance time and downtime. Application: Retrofitting legacy systems in control rooms and MCCs. Long-tail keywords: easy installation, auxiliary contacts, Kirk provisions.
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FAQs
CB2533T120480GRAX5 supports three-pole, top-feed installation with 3-wire configurations and fusible protection. It is designed for use in high-current panels and is compatible with standard industrial enclosures rated for NEMA 1, 3R, 4, and 12, facilitating retrofits in manufacturing and processing environments.
Key specs include a 2500A amperage rating, 120V control voltage, 480V system voltage, and a 1NO-1NC contact configuration. It features an SPVR capacitor trip device and a ground-fault protection configuration with a control power transformer, suitable for demanding, high-current applications.
Yes, the CB2533T120480GRAX5 is UL Listed. It fits standard industrial enclosures compatible with NEMA ratings including 1, 3R, 4, and 12, making it versatile for control panels, MCCs, and other protected power distribution installations.
Maintenance should include periodic inspection of the capacitor trip device, verification of control power transformer operation for ground fault protection, and general commissioning checks after installation. Routine checks help ensure reliable trip performance and minimize unexpected outages.
The 2500A rating supports large feeders with reduced nuisance trips, while SPVR coordination improves fault clearance. Combined with UL listing and robust enclosure compatibility, you can expect lower downtime, fewer unplanned trips, and easier compliance documentation, translating to lower total cost of ownership over the equipment’s life cycle.