Eaton CB2533B120480A Bolted Pressure Switch - UL Listed
Part Number: CB2533B120480A
Quick Summary
Eaton CB2533B120480A Bolted Pressure Switch protects heavy-duty motors in industrial power distribution, rated for 480 V systems with 2500 A current and 120 V control. In the field, nuisance trips and misconfigured protection threaten uptime; this switch reduces risk with bottom-feed design, three-pole topology, and configurable fuse protection. UL Listed certification and broad NEMA ratings—NEMA 1, 3R, 4, 12—assist compliant installations across harsh environments. Designed for industrial switchgear and panel assemblies, it enables easy retrofits with bottom-feed wiring, optional ground-fault relay, and auxiliary contact provisions, delivering dependable protection while minimizing total cost of ownership for improved uptime, safety, and reliability.
Product Information
Extended Description
CB2533B120480A Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (does not trip),2500A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480A
UPC
782116952953
Product Length/Depth
17 in
Product Height
32 in
Product Width
28 in
Product Weight
235 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
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
2500A
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 - CB2533B120480A
CB2533B120480A is a bolted pressure contact switch engineered for heavy-duty motor protection in demanding industrial power systems. Feature: 2500A amperage rating and 480V system voltage; Business Impact: enables interruption of high fault currents without stacking devices, reducing protection coordination complexity; Application: ideal for large motor feeders in switchgear and control panels. Feature: three-pole, three-wire configuration with bottom feed and fusible protection; Business Impact: simplifies wiring topology and enhances fault isolation, lowering maintenance time during fuse changes; Application: 480V feeders where space and wiring efficiency matter. Feature: electrical trip with charge-before-close mechanism; Business Impact: improves safety by reducing arc flash risk and ensuring controlled switching; Application: protection of pumps, conveyors, and presses with high inrush. Feature: optional Ground Fault Relay, Blown Fuse Detection, single-phase protection, auxiliary contacts; Business Impact: enhances monitoring and diagnostics, delivering faster fault identification and reduced downtime; Application: installations requiring enhanced protection annunciation and coordination. Feature: UL Listed certification and NEMA ratings; Business Impact: supports compliant installations across harsh environments and encloses wiring safely; Application: panel assemblies in harsh industrial settings. Feature: robust mechanical design and weight/size compatibility (17 in L x 32 in H x 28 in W, 235 lb) ensures dependable fitment in legacy and new switchgear footprints; Business Impact: minimizes custom mounting or enclosure adaptations while accelerating installation; Application: retrofit projects and new builds in heavy industry.
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FAQs
Yes. The CB2533B120480A is a three-pole, three-wire bolted pressure switch designed for 480V systems with bottom-feed wiring. It supports standard switchgear panels and enclosure configurations, and it is UL Listed for safe integration. When installing, verify enclosure ratings, wire routing, and available auxiliary contacts or optional ground fault provisions to ensure reliable operation in your specific panel layout.
This model is rated for 2500A with a 480V system voltage and a 120V control voltage. It features fusible protection and is compatible with NEMA 1, 3R, 4, and 12 enclosures. The ratings support high-current motor protection in demanding environments, while the control circuit remains isolated and protected within the same device footprint.
Yes. The three-pole, fusible design at 480V suits large motors common to conveyors and pumps. Its bottom-feed configuration simplifies wiring in retrofit projects, and the 2500A interrupt capability provides robust fault handling. With UL Listing and broad NEMA compatibility, it aligns with industrial protection schemes while helping to minimize downtime and maintenance intervals.
The CB2533B120480A carries UL Listed certification and supports multiple NEMA enclosure ratings (1, 3R, 4, 12), ensuring safe operation in diverse environments. The optional features, such as Ground Fault Relay and blown fuse detection, enhance regulatory compliance and diagnostic capability in regulated facilities.
Maintenance benefits come from fusible protection and optional diagnostics like blown fuse detection, which reduce unplanned downtime. The heavy-duty construction and high-current rating minimize device counts in large motor feeds, lowering total cost of ownership and improving system availability in critical process lines.