Eaton CB4033B120480GA Pringle bolted pressure switch - UL
Part Number: CB4033B120480GA
Quick Summary
Introducing the Eaton CB4033B120480GA bolted pressure switch for industrial switchgear and motor-control centers. This design addresses reliability gaps in high-current feeds by combining bottom-feed topology with a charge-before-close mechanism to reduce arcing and wear. It carries UL Listed certification and is compatible with NEMA 1, 3R, 4, and 12 enclosures for rugged installations. With robust ratings like 4000 A at 120/480 V and optional ground-fault features, this solution reduces downtime and supports code-compliant safety. Key physicals include a 22.5 in depth, 32 in height, and 40 in width, aiding enclosure planning and integration. With a one-year warranty and Eaton's support policy, maintenance planning and ROI justification become straightforward.
Product Information
Extended Description
CB4033B120480GA Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (does not trip),4000A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480GA
UPC
782116950607
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.
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 - CB4033B120480GA
Feature: High-current, three-pole design provides a robust 4000A amperage rating with 120 V control and 480 V system voltage. Business Impact: supports large motor feeders without paralleling devices, reducing cabinet complexity and wiring. Application: ideal for motor control centers and switchgear in heavy manufacturing. Feature: Bottom-feed fusible protection simplifies wiring and protects downstream components, improving wiring reliability and fault isolation. Business Impact: faster commissioning and easier field maintenance, lowering lifecycle costs. Application: service feeders and critical power paths where quick fuse replacement matters. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions expand protection and control. Business Impact: enhanced safety, quicker fault diagnosis, and modular expandability. Application: critical process lines requiring layered safety strategies. Feature: Electrical trip with charge-before-close mechanism improves safe sequencing and reduces contact wear. Business Impact: minimizes inrush, extends device life, and supports safer restart procedures. Application: high-energy shutdowns in MCCs and outdoor installations. Feature: NEMA enclosure compatibility (1, 3R, 4, 12) and UL Listing ensure rugged, compliant deployments. Business Impact: broad environmental suitability, fewer enclosure-related modifications, and faster permitting. Application: harsh industrial settings including manufacturing floors and outdoor facilities. Feature: Dimensions and weight (22.5 in depth, 32 in height, 40 in width, 430 lb) aid exact space planning. Business Impact: precise layout, reduced integration risk, and smoother installation pass. Application: panel design and retrofit projects where space is a critical constraint.
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FAQs
CB4033B120480GA is a three-pole, three-wire device designed for bottom-feed wiring with fusible protection. When installing, verify correct phase alignment, secure grounding with the control transformer option, and plan for space within NEMA-rated enclosures (1, 3R, 4, 12). Ensure compatible auxiliary contacts or Kirk provisions if future expansion is anticipated to minimize rework during commissioning.
The switch provides a 4000 A amperage rating with 120 V control voltage and 480 V system voltage, supporting up to 480 V maximum. It is fusible and UL Listed, with optional ground-fault relay and protection features such as blown fuse detection and single-phase protection available. These specs enable dependable protection for large feeders and motor circuits in demanding environments.
Yes. With three-pole operation, bottom-feed configuration, and a high 4000 A rating at 120/480 V, this switch is well-suited for MCCs and large feeders where space is at a premium and reliable protection is essential. Its rugged enclosure compatibility ensures use in a wide range of industrial plants while maintaining safety and performance.
CB4033B120480GA carries UL Listed certification, ensuring adherence to recognized safety standards for industrial power distribution equipment. Its NEMA enclosure ratings (1, 3R, 4, 12) indicate compatibility with common industrial environments, supporting safe operation across indoor and outdoor installations. These certifications help streamline regulatory reviews and commissioning.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Support resources include catalog notes on optional features, installation guidelines, and access to Eaton technical support. For ROI, consider the device’s fault-detection options, lower downtime, and simplified maintenance planning for MCCs and large feeder systems.