Eaton CB2533T120480KAX Pringle bolted pressure switch - UL
Part Number: CB2533T120480KAX
Quick Summary
Eaton CB2533T120480KAX is a bolted pressure switch designed for high-current motor-control applications in industrial facilities. In demanding electrical environments, downtime and misalignment of protection elements can trigger costly outages and safety risks. This device carries UL certification and broad NEMA ratings (NEMA 1, 3R, 4, 12) with optional ground-fault relay and blown-fuse detection, supporting robust safety and reliability. With a 2500 A rating and three-pole configuration, it aligns with Eaton switching devices ecosystems, delivering dependable protection. The result is faster fault isolation, safer maintenance, and lower lifecycle costs for power distribution and industrial control systems.
Product Information
Extended Description
CB2533T120480KAX Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with no lights (trips switch),2500A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480KAX
UPC
782116952076
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
No ground fault
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
Interlock, 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 - CB2533T120480KAX
Feature → Business Impact → Application: The CB2533T120480KAX provides a 2500 A amperage rating at 480 V with 120 V control, enabling it to manage large fault currents in heavy machinery and main switchgear. This capacity translates to reduced risk of arc-flash events and downtime, essential for lifecycle reliability in manufacturing lines and processing plants. Application: ideal for high-load motor control centers and distribution panels where rapid, safe interruption is critical. Feature → Business Impact → Application: Top feed fuse configuration and interlock with charge-before-close mechanism improve operator safety and control during reclosing sequences. This reduces maintenance exposure and ensures compliant, predictable startup in complex lineups. Application: suitable for top-feed installations in rugged environments, including utility-scale panels and warehouses. Feature → Business Impact → Application: NEMA ratings (1, 3R, 4, 12) and UL Listing guarantee regulatory compliance and reliability across indoor and outdoor installations. Application: supports installation in harsh environments while meeting industrial codes. Feature → Business Impact → Application: Optional Ground Fault Relay and Blown Fuse Detection, plus auxiliary and Kirk provisions, deliver enhanced protection and diagnostics. Application: reduces nuisance trips and accelerates fault diagnosis in critical systems. Feature → Business Impact → Application: Overall dimensions and weight (17 in D, 28 in H and W, 205 lb) inform space planning and mounting, enabling safer, cleaner integration into existing enclosures. Application: helps spec engineers forecast footprint and support retrofit projects while maintaining performance margins.
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FAQs
The CB2533T120480KAX supports top-feed configuration and three-pole, three-wire wiring. Ensure enclosure clearance for 17 in depth and 28 in width/height, mount per manufacturer guidelines, and connect to the 480 V system with 120 V control as specified. Use the interlock and charge-before-close functionality to coordinate safe reclosing, and verify any optional accessories (ground fault relay, auxiliary contacts) are correctly wired to your control circuit.
Key ratings include 2500A amperage and 480 V system voltage with 120 V control voltage. It is UL Listed and supports NEMA types 1, 3R, 4, and 12, making it suitable for a range of indoor and outdoor applications. Optional protections include ground fault relay and blown fuse detection to enhance safety and reliability in critical power paths.
Yes. With a 2500A rating and three-pole configuration designed for 480 V systems, this switch is well-suited for heavy-duty motor control and power distribution. The charge-before-close mechanism provides controlled reclosing, and the interlock feature enhances operator safety during maintenance on high-energy circuits.
The device’s rugged construction and fusible protection contribute to extended service life and reduced maintenance frequency. The UL listing and NEMA compatibility support compliant operation, while optional diagnostics (ground fault relay, blown fuse detection) help detect issues early, potentially lowering unexpected downtime and replacement costs over the system’s life.
CB2533T120480KAX is designed to fit within Eaton’s ecosystem, supporting optional Kirk provisions, auxiliary contacts, and interlock configurations. Ground fault relay and blown fuse detection options are available, enabling seamless integration with protection schemes and control logic in modern switchgear and distribution panels.