Eaton CB4033B120480KAX5 Bolted Pressure Switch - UL Listed

Part Number: CB4033B120480KAX5
Manufacturer
Eaton
Part number
CB4033B120480KAX5

Quick Summary

Eaton CB4033B120480KAX5 bolted pressure contact switch provides rugged protection for heavy power distribution in industrial facilities. Engineers often battle nuisance trips and costly downtime in feeder circuits under peak loads. Its UL Listed rating and rugged NEMA-compatible enclosure (NEMA 1, 3R, 4, 12) deliver compliant, reliable operation in harsh environments, while the three-pole, 1NO-1NC configuration supports safe interruption with a charge-before-close mechanism. Optional features such as Ground Fault Relay and auxiliary contacts extend protection and visibility without compromising install simplicity. By aligning with existing Eaton switching devices and standard catalog notes, this solution reduces wiring complexity and accelerates commissioning, delivering improved uptime and lower operating costs for critical power systems.

Product Information

Extended Description

CB4033B120480KAX5 Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD the no lights (trips switch),4000A,1NO-1NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480KAX5
UPC
782116950478
Product Length/Depth
22.5 in
Product Height
32 in
Product Width
40 in
Product Weight
430 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
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, BFD the no lights (trips switch)
Feature: Three-pole configuration with 1NO-1NC and bolted pressure contacts ensures high-current switching with low contact resistance. Business Impact: reduces the likelihood of unintended trips and improves fault isolation, lowering maintenance interventions. Application: ideal for heavy-duty 480V feeders in switchgear and power distribution panels. Feature: Bottom feed, fusible protection, and no ground fault option simplify wiring and enhance fault-clearing performance. Business Impact: speeds installation, simplifies field wiring, and minimizes arc energy exposure. Application: retrofit or new installations in harsh environments where ground fault protection is required. Feature: Amperage rating of 4000A and system voltage of 480V with a 120V control voltage provide a clear, scalable protection platform. Business Impact: supports large-motor and line-side switching with predictable operating margins, reducing oversizing costs. Application: industrial plants with high-load equipment and complex control schemes. Feature: Interlock capability and the no-lights trip feature improve maintenance safety and visibility. Business Impact: prevents accidental re-energization and supports safe service procedures. Application: controlled access panels and safety-critical power distribution where personnel protection matters. Feature: Optional Ground Fault Relay, auxiliary contact provisions, and Kirk provisions expand monitoring and control options. Business Impact: enhances diagnostic capabilities and expandability without rework. Application: modular control rooms, automation lines, and systems requiring extra signaling or fault detection.

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FAQs

Install CB4033B120480KAX5 in rated switchgear or control panels with bottom feed wiring. It supports a three-pole, 1NO-1NC configuration and fusible protection, with dimensions around 22.5 in depth, 32 in height, and 40 in width. Ensure enclosure complies with NEMA ratings listed (1, 3R, 4, 12) and provide space for auxiliary contacts or optional ground fault relay if required.
The unit is rated for 4000A with 480V system voltage and a 120V control voltage. Voltage max and voltage rating are both 480V, and it is designed for three-pole, three-wire operation with a fusible protection scheme, suitable for heavy-duty industrial feeders and switchgear.
Yes. The product includes interlock features and a charge-before-close mechanism, which support safe maintenance procedures and prevent inadvertent re-energization. When combined with optional auxiliary contacts, it enhances control and visibility in safety-critical panels.
This switch is UL Listed, providing recognized safety certification for electrical equipment. It also aligns with multiple NEMA enclosure ratings (NEMA 1, 3R, 4, 12), which define enclosure protection levels relevant to harsh industrial environments.
The CB4033B120480KAX5 delivers high-current reliability (4000A) with robust protection (fusible) and safe operation (interlock, no lights trip). Its rugged construction and optional protection features reduce downtime, simplify maintenance, and improve system safety in large-scale manufacturing, process lines, and automation facilities.