Eaton CB3033T120480KA9 Pringle bolted switch - UL Listed
Part Number: CB3033T120480KA9
Quick Summary
The Eaton CB3033T120480KA9 pringle bolted pressure contact switch provides high-current switching for industrial switchgear and motor control centers. Engineers often wrestle with reliable fault protection and nuisance tripping in demanding environments, so a dependable device is essential. This product carries UL Listed safety certification and supports compatible NEMA 1, 3R, 4, and 12 enclosures, enabling safe operation across varied installations. By combining top-feed protection with a fusible configuration and interlock features, it delivers dependable protection while reducing downtime. The solution also aligns with Eaton switching devices portfolios, offering familiar installation practices and scalable performance for growing automation needs in expanding facilities and retrofit projects.
Product Information
Extended Description
CB3033T120480KA9 Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with three on lights (trips switch),3000A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480KA9
UPC
782116950935
Product Length/Depth
22.5 in
Product Height
28 in
Product Width
40 in
Product Weight
390 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
3000A
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 three normally on 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 - CB3033T120480KA9
Feature: High-current capacity of 3000A at a 480V system enables direct switching of heavy loads, reducing the need for external contactors and simplifying panel design. Business impact: fewer components mean lower installation time, reduced wiring errors, and improved reliability in critical lines. Application: ideal for motor control centers, main feeders, and large distribution panels in manufacturing environments. Feature: Three-pole, top-feed configuration with fusible protection ensures consistent, controlled switching and straightforward wiring topology. Business impact: predictable fault clearing, easier coordination with protective relays, and enhanced safety during maintenance. Application: suitable for top-feed switchgear installations requiring reliable trip-before-close behavior and robust isolation. Feature: Interlock with three normally-on lights that trip the switch and available Ground Fault Relay and Blown Fuse Detection options provide diagnostic visibility. Business impact: rapid fault diagnosis, reduced mean time to repair, and improved safety compliance. Application: critical in safety interlock applications and systems with fault-current monitoring. Feature: Optional auxiliary contacts, Kirk provisions, and auxiliary equipment compatibility support expanded control schemes. Business impact: seamless integration with existing automation architectures and easier controller interlocks. Application: plant-wide control panels and interlocked safety circuits in process industries. Feature: UL Listed certification and compatible NEMA ratings (1, 3R, 4, 12) ensure regulatory alignment and enclosure compatibility. Business impact: simplified procurement, enhanced risk management, and assured performance under varying environmental conditions. Application: factories, data centers, and heavy manufacturing requiring rugged, code-compliant protection.
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FAQs
Install the three-pole device with top-feed wiring per the Eaton catalog. Connect three input wires, matching the top-feed fuse configuration, and ensure correct grounding and interlock operation. Use the available auxiliary provisions if required and verify three-wire control from a 120 V source. Follow UL guidelines for safe commissioning.
The switch is rated for 3000 A with a 480 V system and 120 V control voltage. This allows direct switching of high-current motors and feeders, reducing the need for external contactors. Ensure load current stays within rating and coordinate with overcurrent protection and protective relays.
Yes. The three-pole, fusible configuration, top-feed design, and high-current capability make it ideal for motor control centers and large distribution panels. UL Listing and NEMA compatibility (1, 3R, 4, 12) support reliable enclosure protection and safe operation within MCCs and PDUs.
The CB3033T120480KA9 is UL Listed, and supports NEMA ratings 1, 3R, 4, and 12, enabling use in a wide range of enclosures and environmental conditions. These certifications help meet industry safety standards and facilitate procurement through code-compliant solutions.
Access Eaton's specification sheet, catalogs, and videos. The product page lists a datasheet (CB3033T120480KA9.pdf) and multiple multimedia resources to guide installation, troubleshooting, and integration with control systems. Warranty is one year from installation or 18 months from shipment, whichever comes first.