Eaton CB4033T120480A9 Bolted Pressure Switch - UL Listed
Part Number: CB4033T120480A9
Quick Summary
Eaton CB4033T120480A9 is a bolted pressure switch designed for high-current protection in industrial switchgear and motor control centers. This rugged device helps prevent arc-flash events and unplanned downtime by delivering fast, reliable trips on fault conditions. Operators often struggle with nuisance trips, miscoordination, and difficult calibration in multi-pole assemblies; this model combines a three-pole configuration with a charge-before-close mechanism to improve reliability. With UL Listed certification and robust NEMA compatibility (NEMA 1, 3R, 4, 12), it meets common regulatory and enclosure requirements while offering optional Ground Fault Relay and auxiliary contact provisions for enhanced safety and visibility. In practice, it supports safer commissioning, simpler maintenance, and predictable protection across industrial power distribution networks, delivering measurable uptime and safety improvements.
Product Information
Extended Description
CB4033T120480A9 Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (trips switch),4000A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480A9
UPC
782116899500
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
BFD with three normally on lights (trips switch)
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 - CB4033T120480A9
Feature → Business Impact → Application: The CB4033T120480A9 delivers three-pole bolted pressure contact switching with a charge-before-close mechanism, reducing arc energy and improving coordination, which translates to safer starts and fewer nuisance trips in demanding switchgear environments. This directly supports uptime goals in manufacturing and utilities, where predictable protection enhances operator confidence and compliance with safety standards. Application: Ideal for high-current distribution panels, motor control centers, and large switchgear assemblies that require reliable, fast-acting protection with clear trip indication and straightforward maintenance.
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FAQs
CB4033T120480A9 is designed for high-current switchgear, motor control centers, and distribution panels that require three-pole protection with a top-feed configuration. It supports standard UL-listed enclosures and NEMA-rated environments, helping you meet safety and reliability targets while minimizing complex wiring or retrofit work.
The device offers a 4000A amperage rating, 480V system voltage, and 120V control voltage, with fusible protection. It is compatible with NEMA 1, 3R, 4, and 12 enclosures, and supports a three-wire, three-pole configuration. Optional features include ground fault detection and auxiliary contacts for enhanced visibility and control.
Yes. Catalog notes indicate optional Ground Fault Relay, auxiliary contact provisions, and Kirk provisions, allowing you to tailor protection schemes to your specific safety and control requirements without sacrificing reliability or ease of maintenance.
The CB4033T120480A9 is UL Listed, aligning with common safety and performance standards for industrial protection devices. It is compatible with NEMA-rated enclosures (1, 3R, 4, 12), which helps ensure regulatory compliance and straightforward installation in a range of switchgear configurations.
Eaton provides a warranty policy (25-000) offering one year from installation or 18 months from shipment, whichever comes first. Routine maintenance is typically limited to inspection of connections and contact surfaces; the robust design and optional features help reduce unexpected downtime and support a favorable total cost of ownership.