Eaton CB4033T120480K Bolted pressure switch - UL Listed
Part Number: CB4033T120480K
Quick Summary
Eaton CB4033T120480K bolted pressure switch provides high-current protection for industrial control panels and motor circuits. This design helps address nuisance outages caused by ground faults, fuse failures, and miscoordination in top-feed, 480 V systems. UL Listed certification supports safe operation, while compatibility with NEMA 1, 3R, 4, and 12 enclosures ensures reliable performance in demanding environments. By combining robust protection with straightforward installation, this Eaton switch delivers clear business value for panel builders, OEMs, and maintenance teams seeking dependable, standards-aligned solutions for industrial automation and electrical distribution.
Product Information
Extended Description
CB4033T120480K Eaton: Eaton pringle bolted pressure contact switch,Interlock,4000A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480K
UPC
782116899586
Product Length/Depth
17 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
4000A
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
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033T120480K
Feature: 4000 A amperage rating and three-pole configuration. Business Impact: Enables safe, high-load switching for large motors and feeders, reducing risk of overload and unplanned downtime. Application: Motor control centers and heavy-duty panels in manufacturing and processing facilities. Feature: 120 V control voltage and 480 V system capability. Business Impact: Simplifies integration with standard control circuits while enabling full-system protection; reduces wiring complexity and spare part variety. Application: Industrial control panels and feeder circuits across industrial floors. Feature: Fusible protection with top-feed configuration and interlock. Business Impact: Provides rapid fault isolation, improved safety, and simplified maintenance; minimizes arc-flash exposure during disconnections. Application: High-current switchgear and critical protection schemes. Feature: Optional ground fault relay, blown fuse detection, and auxiliary contact provisions. Business Impact: Enhances diagnostics and remote monitoring capabilities, supporting predictive maintenance. Application: Modern maintenance programs and smart factory deployments. Feature: Large enclosure footprint with 40 in W x 28 in H x 17 in D dimensions and 390 lb weight. Business Impact: Clear installation planning in dedicated switchgear spaces; robust mechanical stability for seismic or vibration-prone environments. Application: Industrial installations with stringent mounting and space planning needs. Feature: UL Listed certification and NEMA compatibility. Business Impact: Regulatory compliance and enclosure compatibility reduce project risk and procurement uncertainty. Application: Compliance-driven panel builds and OEM equipment design.
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FAQs
CB4033T120480K is a three-pole, top-feed switch with a substantial footprint (40 in W x 28 in H x 17 in D) and an approximate 390 lb weight. Plan mounting in dedicated switchgear space, account for clearances around the interlock and fusible elements, and ensure compatible enclosure ratings (NEMA 1, 3R, 4, 12).
This device provides a 4000 A amperage rating with a 120 V control voltage and a 480 V system voltage. It is designed for three-pole operation with three wires, fusible protection, and a top-feed configuration, suitable for high-current applications in industrial environments.
Yes. The unit supports 480 V system voltage and offers NEMA-rated enclosure compatibility (NEMA 1, 3R, 4, 12) for diverse harsh environments. Its fusible protection and interlock feature enhance fault isolation and operator safety in motor control and heavy equipment protection scenarios.
CB4033T120480K carries UL Listed certification, providing recognized electrical safety compliance. Its enclosure compatibility with common NEMA-rated environments further supports regulatory alignment and safe integration into industry-standard control panels.
The interlock and fusible protection reduce unexpected outages and simplify fault diagnosis, while optional ground fault relay and auxiliary contacts enable enhanced monitoring. Its robust construction supports long service intervals in demanding facilities, contributing to lower maintenance costs and improved uptime for critical processes.