Eaton CB4033B120480AX5 Pringle bolted pressure contact switch - UL Listed
Part Number: CB4033B120480AX5
Quick Summary
Eaton CB4033B120480AX5 pringle bolted pressure contact switch delivers high-current protection for industrial switchgear. Operators face nuisance trips, ground faults, and coordination gaps; this device consolidates protection to reduce downtime. UL Listed certification confirms safety compliance, while the unit supports versatile installation in harsh environments with NEMA 1, 3R, 4, and 12 enclosures. Optional Ground Fault Relay, Blown Fuse Detection, and auxiliary provisions provide tailored protection without upgrading the panel. This three-pole, fusible switch uses bottom feed and 120 V control for easy integration into 480 V systems, making it a reliable choice for switchgear, motor control centers, and industrial control panels seeking robust, serviceable protection. The amperage rating of 4000 A further reinforces its suitability for demanding applications.
Product Information
Extended Description
CB4033B120480AX5 Eaton: Eaton pringle bolted pressure contact switch,BFD with 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
CB4033B120480AX5
UPC
782116950768
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
BFD with no 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 - CB4033B120480AX5
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: Three-pole, 1 NO-1 NC contact arrangement enables precise control and quick fault isolation, improving system reliability and reducing damage from faults in high-current circuits. This translates to reduced downtime and safer startup sequences in distribution panels and MCCs. Application: switchgear assemblies with large feeders where fast, controlled tripping is essential. Feature → Business Impact → Application: Bottom feed and fusible configuration simplify wiring, reduce enclosure complexity, and enable straightforward integration with existing protection schemes. This improves installation speed and minimizes retrofit costs in retrofits and new builds alike. Application: retrofit projects inside existing control panels and new switchgear installations.Feature → Business Impact → Application: 120 V control voltage paired with 480 V system voltage supports standard control circuits while handling high-power loads, enabling seamless compatibility with common industrial PLCs and relays. Application: motor control centers, distribution gear, and large equipment protection schemes.Feature → Business Impact → Application: Optional Ground Fault Relay, Blown Fuse Detection, and auxiliary contact provisions offer tailored protection without panel upgrades, reducing maintenance calls and extending life of downstream devices. Application: facilities requiring enhanced fault awareness and selective coordination.Feature → Business Impact → Application: UL Listed certification and broad NEMA enclosure compatibility (1, 3R, 4, 12) ensure regulatory compliance and rugged performance in harsh environments. Application: harsh industrial settings, chemical plants, and outdoor or damp locations where reliable protection matters.
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FAQs
To install CB4033B120480AX5 in bottom-feed switchgear, confirm enclosure compatibility (UL-listed and NEMA-rated), mount the unit securely, and connect the three wires to the 1 NO-1 NC contacts. Ensure the bottom-feed configuration aligns with the bus and incoming feeders, then wire the 120 V control circuit and verify fusible protection per the catalog notes.
Key specs include a 4000 A amperage rating, 120 V control voltage, 480 V system voltage, and a three-pole, three-wire configuration with 1 NO-1 NC contact. The device is fusible and designed for 48x environments compatible with NEMA 1, 3R, 4, and 12 enclosures, enhancing protection for high-current circuits.
Yes. Its three-pole, fusible design with 4000 A rating and 120 V control is well-suited for motor control centers, providing fast trip protection and coordination with upstream breakers. The UL Listed status further supports compliance in MCC assemblies, while optional fault-detection features help monitor motor faults and prevent nuisance trips.
CB4033B120480AX5 is UL Listed, which confirms safety compliance for electrical equipment. It also offers broad NEMA compatibility (1, 3R, 4, 12), enabling installation in a range of environments—from clean rooms to harsh outdoors. These certifications support regulatory compliance and reduce risk in electrical installations.
The device reduces downtime through reliable, high-current tripping and minimizes nuisance trips with proper protection coordination. Optional Ground Fault Relay and Blown Fuse Detection enhance fault visibility, lowering maintenance calls. Long-term ROI comes from improved equipment safety, fewer unplanned outages, and simplified panel design for future upgrades.