Eaton CB4033B120480G5 Pressure Contact Switch - UL Listed
Part Number: CB4033B120480G5
Quick Summary
Eaton CB4033B120480G5 pressure contact switch provides reliable three-pole protection for industrial power distribution systems. Many installations struggle with ground fault risk, delayed trips, and wiring mistakes that cause unplanned outages. UL Listed certification and compliance with multiple NEMA ratings (1, 3R, 4, 12) support safe, code-conforming installations, while the integrated control power transformer and bottom-feed design simplify field wiring. This combination delivers robust protection with streamlined installation, helping engineers reduce downtime and maintenance costs in switchgear and control panels.
Product Information
Extended Description
CB4033B120480G5 Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,4000A,1NO-1NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480G5
UPC
782116950676
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
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
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
With control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033B120480G5
Feature: 1 NO-1 NC contact configuration in a three-pole design → Business Impact: simplifies protection logic and reduces wiring complexity, minimizing miscoordination risks → Application: protective interlocks in switchgear cabinets and motor control centers. Feature: 4000A amperage rating and 480V system support → Business Impact: accommodates high fault currents without oversized equipment, improving system resilience → Application: main distribution feeds in demanding industrial facilities. Feature: Ground fault with control power transformer → Business Impact: enhances safety and fault detection while reducing nuisance trips → Application: critical power systems and transformer-fed controls. Feature: Bottom feed and fusible protection → Business Impact: simplifies wiring, lowers installation time, and clarifies fault isolation → Application: compact control panels and crowded switchgear environments. Feature: UL Listed certification and NEMA ratings (1, 3R, 4, 12) → Business Impact: ensures regulatory compliance and environmental suitability → Application: harsh or variable environments across manufacturing and processing facilities. Feature: Catalog notes offer optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contacts → Business Impact: expandable protection schemes without replacing the base switch → Application: scalable protection for evolving plant protection strategies.
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FAQs
CB4033B120480G5 uses a 1NO-1NC contact configuration in a three-pole arrangement and bottom feed. Route conductors through bottom entries, connect the control power transformer if required for ground fault functionality, and ensure fusible protection per system design. The UL Listed unit supports straightforward wiring within standard switchgear or motor control centers, reducing commissioning time.
Key ratings include a 4000A amperage capability, 120 V control voltage, and 480 V system voltage with voltage max of 480 V. The device uses fusible protection and supports a 3-wire, 3-pole configuration. It is compatible with NEMA 1, 3R, 4, and 12 enclosures, and UL Listed for safety compliance.
Yes. The switch includes a ground fault option via a control power transformer, enabling enhanced protection and fault detection for transformer-fed control circuits. Optional accessories such as ground fault relays and auxiliary contacts can be added to tailor protection schemes to your application.
The CB4033B120480G5 is UL Listed, providing recognized safety certification. It supports multiple NEMA ratings (1, 3R, 4, 12) for use in varied environments, from indoor control panels to outdoor or rugged installations, ensuring reliable operation under harsh conditions.
The switch offers high fault-current capacity and robust protection, reducing unplanned outages and maintenance cycles. Its modular option set (ground fault relay, auxiliary contacts) allows you to extend protection without hardware replacement, delivering lower lifecycle costs, improved uptime, and faster preventive maintenance planning.