Eaton CB2533B120480K5 Pringle bolted switch - UL Listed
Part Number: CB2533B120480K5
Quick Summary
The Eaton pringle bolted pressure contact switch delivers reliable interlock protection for high‑current industrial equipment. This design addresses downtime caused by inadequate protection coordination and difficult integration with existing controls. UL Listed certification and broad NEMA ratings (NEMA 1, 3R, 4, 12) help ensure safe operation across diverse environments. With a 2500A capacity at 480V and a 120V control circuit, the unit balances robust protection with straightforward integration, delivering safer startup, smoother maintenance, and lower total cost of ownership for mission-critical applications.
Product Information
Extended Description
CB2533B120480K5 Eaton: Eaton pringle bolted pressure contact switch,Interlock,2500A,1NO-1NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480K5
UPC
782116952687
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
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB2533B120480K5
Feature: High current, three-pole configuration with 1 NO-1 NC contact and charge-before-close trip. Business Impact: Supports heavy-duty motor loads up to 2500A, reducing arc-flash risk and improving protection coordination. Application: Heavy machinery MCCs and large motor drives. Feature: Bottom feed with fusible protection and bottom feed fuse configuration. Business Impact: Simplifies wiring and fuse coordination while enabling straightforward swap-out during maintenance. Application: Plant switchgear and feeder panels. Feature: Interlock and three-wire safety features. Business Impact: Prevents energizing the circuit when enclosure is open, enhancing operator safety and compliance. Application: Safe access to energized equipment in industrial layouts. Feature: Wide NEMA compatibility (1, 3R, 4, 12). Business Impact: Enables deployment in a variety of indoor environments without compromising protection. Application: Industrial, outdoors, and harsh environments. Feature: 120V control voltage with 480V system voltage. Business Impact: Flexible control integration with standard plant controls, reducing customization costs. Application: Control circuits and remote monitoring. Feature: Robust enclosure footprint with dimensions 17 in L, 32 in H, 28 in W and unit weight of 235 lb. Business Impact: Predictable mounting footprint and durable construction for years of service. Application: Retrofit and new installations in centralized control rooms and on equipment floors.
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FAQs
CB2533B120480K5 uses bottom feed with fusible protection and a three-wire, three-pole arrangement, making mounting straightforward in switchgear, MCCs, or control panels. Its 17 in length, 32 in height, and 28 in width provide a predictable enclosure footprint for retrofit or new installations, and UL Listed status helps ensure compliance with safety standards.
The switch provides a 2500A amperage rating with a 480V system voltage and 480V voltage rating. It features a 1NO-1NC contact configuration across three poles, controlled via a 120V control circuit, enabling reliable interlock and protection in heavy equipment applications.
Yes. It carries NEMA ratings including 1, 3R, 4, and 12, which cover indoor, weather-protected, and some outdoor or wash-down environments. This versatility helps plants consolidate protection devices without compromising reliability in varied industrial settings.
Key certifications include UL Listed, with built-in interlock features and fusible protection. The combination of UL listing and NEMA ratings provides assurance for electrical safety, reliability, and code compliance in industrial facilities.
The product is designed for long service life with minimal maintenance, supported by a one-year Eaton warranty. Fusible protection and robust construction reduce downtime and spare-part costs, while compatibility with standard 120V control systems minimizes commissioning time and operational interruption.