Eaton CB2533B120480KGR5 Pressure Contact Switch - UL Listed
Part Number: CB2533B120480KGR5
Quick Summary
Eaton CB2533B120480KGR5 pressure contact switch is a rugged interlock-ready solution for high-capacity switchgear applications. Maintenance teams often struggle with ensuring reliable fault protection and timely trips in large electrical assemblies. UL Listed protection, along with broad enclosure compatibility and ground fault sensing options, helps meet safety and compliance requirements. The device also aligns with industry standards for NEMA 1, 3R, 4, and 12 enclosures, supporting safe operation in diverse environments. In industrial automation and electrical protection programs, this switch delivers dependable safety interlock functionality, reduces downtime, and integrates smoothly with existing control power transformers and SPVR configurations.
Product Information
Extended Description
CB2533B120480KGR5 Eaton: Eaton pringle bolted pressure contact switch,Interlock, single-phase relay with capacitor trip device (SPVR),2500A,1NO-1NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480KGR5
UPC
782116952618
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
Interlock, single-phase voltage relay with capacitor trip device (SPVR)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2533B120480KGR5
Feature → Business Impact → Application: The CB2533B120480KGR5 provides a 2500A amperage rating, enabling it to handle high-load switchgear sections without nuisance trips, which translates to improved system uptime. In practice, plant engineers can rely on stable fault protection across 480V service voltages, reducing unplanned outages in critical lines and enabling safer, faster maintenance. Feature → Business Impact → Application: The 1 NO-1 NC contact configuration paired with a bottom feed design simplifies wiring and integration in compact switchgear footprints, accelerating installation and reducing labor costs in new builds and retrofits. Feature → Business Impact → Application: Interlock with SPVR (single-phase voltage relay) and capacitor trip device provides controlled, charge-before-close protection, lowering arc flash risk while ensuring coordinated startup sequences for motors and drives in automation systems. Feature → Business Impact → Application: Ground fault with control power transformer integration supports enhanced fault detection and safer power distribution, improving reliability for critical processes. Feature → Business Impact → Application: UL Listed certification and broad NEMA compatibility (1, 3R, 4, 12) give confidence for harsh environments, enabling compliance with industry standards while maintaining performance in manufacturing, water/wastewater, and material handling facilities. Feature → Business Impact → Application: Bottom-feed, three-pole construction with fusible protection ensures consistent fault isolation and simplified maintenance planning, aiding reliability engineers in preventive maintenance programs across large switchgear assemblies.
Get a Quick Quote for a Eaton CB2533B120480KGR5
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton CB2533B120480KGR5?
Enquire Now
FAQs
For bottom-feed CB2533B120480KGR5 installations, ensure enclosure access from the bottom, provide adequate clearance for 28 in width and 32 in height, and plan for a 17 in depth. The unit weighs 235 lb, so use proper rigging and mounting hardware. Verify wiring matches the 1 NO-1 NC configuration and that fuse blocks are correctly sized for 2500A rating. This reduces field faults and accelerates commissioning.
Key specs include a 2500A amperage rating, 120 V control voltage, 480 V system voltage, and 1 NO-1 NC contact configuration across three poles. The device supports bottom feed with fusible protection and interlock with SPVR. It is suitable for heavy-duty protection in switchgear assemblies, providing reliable tripping control and fault isolation for critical loads.
Yes, the CB2533B120480KGR5 is UL Listed, offering standard safety certification for electrical equipment. It supports NEMA ratings of 1, 3R, 4, and 12, which enables operation in a range of environments from dust-prone to splash-prone enclosures. This makes it a dependable choice for industrial facilities demanding rigorous safety and compliance.
The interlock with SPVR (single-phase voltage relay with capacitor trip device) provides a controlled, charge-before-close sequence, reducing arcing and ensuring safe startup of downstream equipment. This configuration improves coordination with other protective devices, minimizes peak fault currents, and supports safer maintenance and testing in automation environments.
Expect reduced downtime due to robust fusible protection and reliable fault isolation at 480 V system voltages. The UL Listing and NEMA compatibility ease regulatory compliance, while the bottom-feed design simplifies installation and future servicing. Over time, these factors translate to lower maintenance costs, fewer unscheduled outages, and a faster return on investment for large-scale switchgear projects.