Eaton CB2533T120480GRA9 Pringle pressure switch - UL Listed
Part Number: CB2533T120480GRA9
Quick Summary
The Eaton pringle bolted pressure contact switch provides reliable single‑phase protection for industrial power distribution and motor control centers. In modern plants, nuisance trips and complex wiring slow maintenance and reduce uptime. UL Listed certification and broad NEMA compatibility (NEMA 1, 3R, 4, 12) support safe operation in harsh indoor and outdoor environments. This solution also integrates optional ground-fault relay and auxiliary provisions, delivering safer, more maintainable electrical infrastructure while helping facilities meet regulatory requirements and reduce total cost of ownership.
Product Information
Extended Description
CB2533T120480GRA9 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three on 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
CB2533T120480GRA9
UPC
782116952151
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 (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 - CB2533T120480GRA9
Feature SPVR capacitor trip device delivers controlled, rapid tripping for reliable fault clearance, reducing nuisance trips and protecting high‑value motors. Business Impact Lower downtime, safer start‑up sequences, and improved protection for critical processes. Application Ideal for large motor feeders in conveyors, presses, and packaging lines where precise capacitor‑trip coordination is essential. Feature Three‑pole design with 480 V system voltage and 3‑wire configuration simplifies wiring topology while supporting robust fault handling. Business Impact Streamlined installation, easier maintenance, and scalable protection as plant loads grow. Application Suitable for switchgear and motor control centers in industrial facilities needing dependable single‑phase protection and safe fault isolation. Feature 2500 A amperage rating with 120 V control voltage enables strong protection for high‑current loads. Business Impact Extends equipment life and reduces fuse replacements in demanding apps. Application Targets heavy motors and HVAC drives in manufacturing plants. Feature Optional Ground Fault Relay and auxiliary provisions enable enhanced safety monitoring. Business Impact Improves safety compliance and fault diagnostics, reducing risk and downtime. Application Useful across automation cabinets, service entrances, and electrical rooms requiring additional monitoring and control.
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FAQs
CB2533T120480GRA9 supports top feed and three-pole wiring, with optional ground fault relay. When integrating with existing MCCs, verify conductor sizes for 2500A rating, maintain proper clearance, and align with Kirk provisions and auxiliary contacts as needed. Ensure all components are UL Listed and enclosure ratings match the installation environment.
The unit delivers a 2500A amperage rating with a 480V system voltage and a 120V control voltage. It uses fusible protection in a three-pole, three-wire configuration and is UL Listed with broad NEMA compatibility for industrial panels and switchgear applications.
Ideal for large motor control circuits in conveyors, presses, and packaging lines where top‑fed protection and capacitor trip reliability are critical. The SPVR device helps prevent nuisance trips, and the BFD indicators support rapid fault identification, improving overall system uptime.
UL Listed certification confirms safety compliance for industrial use. It also supports NEMA ratings of 1, 3R, 4, and 12, indicating suitability for various environmental conditions when installed with proper enclosures. Optional Ground Fault Relay and auxiliary provisions further enhance protection and regulatory alignment.
The SPVR capacitor trip reduces nuisance trips, decreasing unscheduled downtime. Durable fusible protection and robust construction extend service life, lowering replacement costs. Easy integration with existing control schemes and diagnostics improves maintenance efficiency and contributes to a lower total cost of ownership over the asset life.