Eaton CB3033B120480AX5 Bolted Pressure Switch - UL Listed
Part Number: CB3033B120480AX5
Quick Summary
Eaton CB3033B120480AX5 bolted pressure switch is designed to deliver high-current protection for industrial power distribution. Engineers often struggle with unreliable switching in 480 V feeder systems, risking downtime and costly trips. UL Listed certification ensures safety compliance, while NEMA ratings confirm enclosure compatibility from 1 through 12 for rugged environments. With its three-pole, 1NO-1NC configuration and fusible protection, this switch supports robust control in demanding applications. Optional features like Ground Fault Relay, blown-fuse detection, and auxiliary provisions simplify installation and maintenance, driving lower total cost of ownership.
Product Information
Extended Description
CB3033B120480AX5 Eaton: Eaton pringle bolted pressure contact switch,BFD with no lights (trips switch),3000A,1NO-1NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480AX5
UPC
782116951802
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
3000A
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
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B120480AX5
Feature: 3000A amperage rating at 480V. Business impact: Enables robust protection for large motor loads with fewer upstream devices and reduced wiring complexity. Application: Use in switchgear feeders and heavy industrial control panels to minimize downtime and maximize uptime. Feature: 1NO-1NC contact configuration. Business impact: Provides flexible control logic and reliable tripping for both normal operation and fault conditions. Application: Suitable for three-pole control circuits in manufacturing environments where space and wiring efficiency matter. Feature: Bottom feed and fusible configuration. Business impact: Simplifies panel mounting and fuse protection while optimizing enclosure space. Application: Ideal for bottom-fed panels and retrofit projects in legacy systems. Feature: UL Listed with NEMA ratings. Business impact: Ensures regulatory compliance and enclosure compatibility across harsh environments. Application: Use in industrial facilities requiring standard protection classification (NEMA 1, 3R, 4, 12). Feature: Optional Ground Fault Relay, blown fuse detection, and auxiliary provisions. Business impact: Reduces maintenance time and improves fault diagnosis, lowering total cost of ownership. Application: Fits retrofit upgrades and new installations needing enhanced monitoring and control.
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FAQs
To install the CB3033B120480AX5, mount the unit inside a suitable enclosure rated for NEMA 1, 3R, 4, or 12, and connect to a 480 V, three-wire feeder. Wire the three inputs to the bottom-fed terminals, configure the 1NO-1NC contacts for the control circuit, and ensure the 120 V control supply is connected correctly. If desired, enable the optional ground fault relay or blown fuse detection.
Key specs include a 3000A amperage rating at 480 V, three-pole operation, bottom feed with bottom fuse configuration, 1NO-1NC contact arrangement, 120 V control voltage, fusible protection, and UL Listed certification with compatible NEMA enclosure ratings (1, 3R, 4, 12). Verify these against your panel rating and motor-load requirements.
Yes. The 3000A capacity supports large motor loads, while fusible protection provides effective short-circuit and overload control. The 1NO-1NC configuration supports flexible control logic, and the charge-before-close mechanism enhances safety during switching. Optional features, such as ground fault relay and auxiliary contacts, aid in diagnostics and integration with downstream protection schemes.
The CB3033B120480AX5 is UL Listed, indicating compliance with recognized safety standards for electrical equipment. It also carries NEMA enclosure ratings (1, 3R, 4, 12), which guide installation in appropriate environments. Optional features do not affect core certification status, but ensure ongoing conformity with your facility’s regulatory and safety requirements.
The high-current, fusible protection design minimizes the number of components and reduces downtime risks in heavy industry. UL/NEMA compliance simplifies approvals, while optional features streamline maintenance by improving fault diagnosis (blown fuse detection) and integration (auxiliary provisions). Over time, this can lower maintenance costs and extend service life for critical feeders and switchgear.