Eaton CB2533B120480KGA Pringle bolted pressure switch - UL
Part Number: CB2533B120480KGA
Quick Summary
Eaton CB2533B120480KGA pringle bolted pressure contact switch provides high-current protection for industrial switchgear. Facilities often battle nuisance trips and inconsistent interlocks in 480 V systems, which can disrupt uptime and safety. UL Listed certification supports safety compliance, and the unit is compatible with rugged NEMA enclosures such as 1, 3R, 4, and 12, helping you meet installation standards. This solution combines heavy-duty protection with a bottom-feed design and configurable options to support maintenance efficiency, lifecycle reliability, and scalable power distribution across industrial facilities.
Product Information
Extended Description
CB2533B120480KGA Eaton: Eaton pringle bolted pressure contact switch,Interlock,2500A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,BFD with three on lights (does not trip),Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480KGA
UPC
782116952625
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.
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
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 - CB2533B120480KGA
Feature → Business Impact → Application: The CB2533B120480KGA delivers a three-pole, bottom-feed configuration with fusible protection for 480 V systems, enabling reliable interlock operations and reduced risk of uncontrolled energization. This translates to improved equipment safety and lower downtime in motor control centers and switchgear assemblies. Application: Ideal for heavy-duty power distribution in manufacturing, with 2500 A amperage rating and 120 V control voltage supporting high-demand loads while maintaining safe control power.Feature → Business Impact → Application: Ground fault capability and optional auxiliary provisions (ground fault relay, Kirk provisions) reduce fault-related outages and simplify protective relay integration. Application: Suitable for facilities requiring enhanced fault detection and expanded control logic in 480 V environments.Feature → Business Impact → Application: Interlock with charge-before-close mechanism enhances sequence control, preventing arcing and accidental energization. Application: Critical in industrial safety workflows within large electrical rooms and switchgear housings.Feature → Business Impact → Application: NEMA ratings compatibility (1, 3R, 4, 12) and UL Listed certification provide regulatory alignment and environmental resilience. Application: Supports tough factory floors, outdoor-rated panels, and maintenance bays where moisture, dust, or vibration are present.Feature → Business Impact → Application: Large physical footprint (17 in L × 32 in H × 28 in W) and 235 lb weight enable robust enclosure protection while standardizing installation in existing frames. Application: Helps define installation planning, clearance, and mounting strategies in retrofit projects.Feature → Business Impact → Application: Optional ground fault and auxiliary contact provisions offer scalable protection and monitoring options. Application: Enables tailored protection schemes for critical machinery and safety interlocks in aerospace, metal fabrication, and process industries.
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FAQs
When retrofitting CB2533B120480KGA, ensure bottom-feed wiring compatibility, three-pole (three-wire) configuration, and fusible protection are matched to the existing 480 V distribution. Account for its 17 in L, 32 in H, and 28 in W footprint, and support from an appropriate enclosure with UL Listed suitability. Verify ground fault options and auxiliary provisions as needed.
Key ratings include a 2500 A amperage rating, 120 V control voltage, and 480 V system voltage with voltage rating up to 480 V. It is fusible-protected and designed for three-pole operation with three wires. The device is UL Listed and supports interlock protection with charge-before-close features in suitable switchgear configurations.
Yes. The CB2533B120480KGA is engineered for 480V industrial power distribution and switchgear, offering three-pole operation, interlock, and bottom-feed configuration that aligns with MCC design standards. It supports NEMA 1, 3R, 4, and 12 enclosures, making it appropriate for demanding environments and motor control applications.
The product carries UL Listed certification, confirming conformance to safety standards for electrical devices. While CE or SIL designations are not specified for this model, UL Listing combined with NEMA enclosure compatibility supports regulatory compliance in many North American industrial settings and helps satisfy internal safety audit requirements.
The Eaton CB2533B120480KGA carries Eaton’s one-year warranty from installation or eighteen months from shipment, whichever occurs first, under policy 25-000. Routine maintenance focuses on ensuring proper wiring, fuse status, and interlock integrity. Consider stocking ground fault and auxiliary components to minimize downtime during preventive maintenance or fault remediation.