Eaton CB2533T120480G Pringle bolted switch - UL Listed
Part Number: CB2533T120480G
Quick Summary
Eaton CB2533T120480G pringle bolted pressure switch provides high-amperage control for switchgear and motor control centers. Maintenance teams often struggle with coordinating protection across transformers, fuses, and fault-detection relays; this unit integrates a control power transformer, ground fault protection, and fusible options to simplify wiring and reduce downtime. UL Listed certification, paired with compatible NEMA ratings of 1, 3R, 4, and 12, helps meet rigorous electrical codes in challenging environments. The top-feed three-pole design supports easier installation and reliable performance in large motor circuits, while the 2500A amperage rating and 480V system compatibility deliver scalable protection for industrial automation applications. For engineers, the combination translates into improved reliability, faster commissioning, and lower lifecycle costs.
Product Information
Extended Description
CB2533T120480G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,2500A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480G
UPC
782116899203
Product Length/Depth
17 in
Product Height
28 in
Product Width
28 in
Product Weight
215 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
With control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2533T120480G
Feature → Business Impact → Application: The CB2533T120480G delivers a 2500A amperage rating and three-pole configuration, enabling reliable protection for large motors and demanding loads in switchgear and motor control centers, reducing nuisance trips and unplanned downtime. This translates to measurable uptime gains and safer operation in heavy industrial environments. Application: Ideal for motor control centers and high-current feeders where robust mechanical integrity and fast fault clearance are required.Feature → Business Impact → Application: Control voltage of 120 V with a 480 V system voltage supports integrated control circuits and common industrial power rails, simplifying wiring and enabling faster commissioning while maintaining compliance with standard industrial practices. Application: Suitable for centralized protection schemes and integrated control panels in automation assemblies.Feature → Business Impact → Application: Top-feed, three-wire fusible configuration with ground fault protection and a control power transformer streamlines protection architecture, reduces panel space, and improves fault diagnosis under live conditions. Application: Effective in environments where rapid fault isolation and safe energization sequencing are critical for uptime.Feature → Business Impact → Application: Optional ground fault relay, blown fuse detection, single-phase protection, auxiliary contact provisions, and Kirk provisions provide configurable protection and expansion, lowering lifecycle costs through scalable protection suites. Application: Useful in retrofit projects and new builds needing tailored protection schemes.Feature → Business Impact → Application: UL Listed certification and NEMA ratings (1, 3R, 4, 12) ensure regulatory compliance and rugged enclosure performance, supporting safer operation in harsh environments. Application: Essential for industrial facilities with stringent safety and reliability requirements, including food & beverage, water treatment, and heavy manufacturing.
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FAQs
The CB2533T120480G uses a top-feed configuration with three poles and three wires, designed for straightforward wiring into 480V switchgear. Plan for ground fault options and a control power transformer, ensure UL Listed compliance, and verify compatibility with existing fusing arrangements to minimize commissioning time and avoid rework.
A 2500A rating indicates the switch can safely interrupt and carry large motor inrush and running currents typical in MCCs. It supports robust fault clearance, reduces thermal stress on conductors, and enables fewer protective devices in the same feeder, improving overall protection and reliability.
Yes. The unit carries UL Listed certification and supports NEMA ratings 1, 3R, 4, and 12, which align with common industrial enclosure and environmental requirements. This combination helps meet electrical codes and enhances reliability in challenging facilities such as industrial plants and water treatment sites.
Optional features include Ground Fault Relay, Blown Fuse Detection, Single-Phase Protection, Auxiliary Contact Provisions, and Kirk Provisions. These options enable configurable protection schemes, easier diagnostics, and scalable control architectures for evolving protection requirements.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever comes first. Warranty coverage, combined with Eaton’s technical support and specification sheets, helps ensure rapid troubleshooting, maintenance planning, and long-term total cost of ownership reduction.