Eaton CB4033B120480GA5 Pringle bolted pressure switch - UL Listed
Part Number: CB4033B120480GA5
Quick Summary
Eaton CB4033B120480GA5 pringle bolted pressure switch enables high-current protection for three-phase motor circuits. Engineering teams seek reliable fault sensing, straightforward installation, and predictable operation under real-world load and startup conditions. UL Listed certification coupled with broad NEMA ratings—NEMA 1, 3R, 4, and 12—helps meet regulatory requirements in diverse indoor and outdoor environments. With bottom feed, three-pole configuration, 4000 A amperage rating, and 480 V system compatibility, it supports robust protection while simplifying panel design and maintenance. For OEMs, the option of Ground Fault Relay, Blown Fuse Detection, and auxiliary contact provisions provides flexibility during system upgrades. Its 120 V control voltage and 480 V line voltage capability support seamless integration with existing power distribution schemes.
Product Information
Extended Description
CB4033B120480GA5 Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (does not trip),4000A,1NO-1NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480GA5
UPC
782116950614
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
BFD with three normally on lights (does not trip)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033B120480GA5
Feature: The CB4033B120480GA5 delivers 4000 A at 480 V with a 1 NO-1 NC contact in a three-pole assembly. Business impact: This high-current arrangement supports direct motor feeder protection, reduces nuisance fuse trips, and provides predictable fault isolation, improving line reliability. Application: Ideal for large industrial motors, pumps, and conveyors in heavy manufacturing. Additionally, rugged construction tolerates wide temperature ranges and dusty environments, lowering maintenance frequency. Feature: Bottom feed design paired with fusible protection simplifies wiring and panel integration. Business impact: Wiring becomes cleaner, installation time decreases, and future upgrades are easier to execute without reworking panels. Application: Particularly beneficial in control panels and switchgear where bottom-entry connections and bottom-feed fuses are standard practice. In plant retrofits, the bottom-feed format reduces field errors and accelerates commissioning, delivering measurable labor savings and faster time-to-full operation. Feature: Optional Ground Fault Relay, Blown Fuse Detection, and auxiliary contact provisions extend protection and diagnostics. Business impact: Early fault detection reduces downtime and supports safer shutdown sequences, while auxiliary signals enable interlocks for automation. Application: OEM panel upgrades and retrofit projects in process lines and industry equipment benefit from scalable monitoring and fault isolation. Feature: UL Listed certification and broad NEMA ratings (1, 3R, 4, 12) ensure regulatory compliance and environmental resilience. Business impact: Compliance reduces audit risk and supports use in indoor and outdoor environments. Application: Industrial control enclosures, outdoor switchgear, and service bays. The combination of ratings and certification also simplifies supplier qualification. Feature: Charge-before-close mechanism and three normally-on indicator lights provide safer switching and clear status. Business impact: Reduces arc exposure during energization and speeds fault diagnosis. Application: Motor control centers and distribution panels requiring auditable operation and signaling.
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FAQs
When installing CB4033B120480GA5, plan for a bottom-feed wiring approach, ensuring 480 V system availability and a 120 V control circuit. Verify the 4000 A rating and three-pole configuration, and select the enclosure that satisfies UL listing and NEMA requirements. Consider optional Ground Fault Relay and auxiliary contacts to support signaling and interlocks in automation schemes.
Key specifications include 4000 A amperage rating, 480 V system voltage, 120 V control voltage, and a 1 NO-1 NC contact arrangement in a three-pole design. The device supports fusible protection and is UL Listed with NEMA 1, 3R, 4, and 12 compatibility. Confirm bottom feed wiring, ground fault options, and the availability of auxiliary contacts for your PLC signaling.
Yes, CB4033B120480GA5 supports harsh environments through its NEMA ratings (1, 3R, 4, 12) and UL Listed certification, enabling use in indoor and outdoor settings with moisture and dust exposure. Ensure the chosen enclosure provides the appropriate protection level, and consider accessory options like ground fault detection for enhanced safety in outdoor or damp locations.
CB4033B120480GA5 carries UL Listed certification and supports multiple NEMA ratings (1, 3R, 4, 12). These certifications confirm compliance with safety, reliability, and environmental standards, simplify qualification for industrial panels, and reduce regulatory risk during audits. They also reassure users that the switch can operate across diverse indoor and outdoor environments.
The switch offers high-current protection and robust fault isolation, reducing unplanned downtime. Optional features such as Ground Fault Relay, Blown Fuse Detection, and Auxiliary Contacts enable proactive diagnostics and signaling, which lowers maintenance time and improves operator efficiency. Over time, these capabilities translate to faster commissioning, lower service costs, and improved equipment uptime in manufacturing environments.