Eaton CB2533B120480G pressure contact switch - UL-listed
Part Number: CB2533B120480G
Quick Summary
Eaton CB2533B120480G pressure contact switch is a robust protection device for industrial switchgear and distribution panels. This solution helps minimize downtime by providing reliable fault protection and rapid disconnection during abnormal conditions. UL Listed certification and strong enclosures ratings, including NEMA 1, 3R, 4, and 12, offer confidence across diverse environments. With a built-in control power transformer and fusible protection, it delivers simplified engineering, reduced parts count, and dependable operation in high-current applications.
Product Information
Extended Description
CB2533B120480G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,2500A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480G
UPC
782116899159
Product Length/Depth
17 in
Product Height
32 in
Product Width
28 in
Product Weight
240 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
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
With control power transformer
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 - CB2533B120480G
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: High current capability with integrated control power transformer → Business Impact: Supports up to 2500A at 480V while providing 120V control power, reducing external auxiliary components and wiring complexity. Application: Ideal for large switchgear and motor control centers needing compact, reliable protection with centralized control. Feature: Bottom feed, three-pole, three-wire configuration → Business Impact: Ensures robust, three-phase protection with straightforward installation and predictable fault isolation. Application: Suitable for new builds and retrofits in industrial panels where bottom-feed protection is preferred. Feature: Electrical trip with charge-before-close mechanism → Business Impact: Improves safety and reduces arcing during switching events, lowering maintenance costs and downtime. Application: Critical in controlled start/stop sequences for motors and conveyors. Feature: Optional Ground Fault Relay and auxiliary provisions → Business Impact: Adds selective protection and expandability without major redesigns. Application: Useful in facilities requiring enhanced fault detection and modular control. Feature: Fusible protection and UL/NEMA certifications → Business Impact: Delivers compliant protection with proven enclosure performance, facilitating regulatory approval and safer installations. Application: Common in harsh environments and critical processes that demand reliable protection. Feature: Flexible installation and compatibility → Business Impact: Simplifies project planning with clear footprint and configurable options, accelerating commissioning. Application: MCCs, switchboards, and distribution panels benefit from reduced wiring and faster maintenance.
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FAQs
CB2533B120480G is designed for three-pole, three-wire systems with bottom feed and fusible protection. It includes a control power transformer for integrated control circuits, streamlining integration into existing MCCs or switchboards. When retrofitting, verify enclosure clearance, wiring routing for 120V control, and alignment with auxiliary contact provisions for future expansion.
This switch is rated for 2500A with a 480V system and a 120V control voltage. It uses a fusible protection scheme and supports three-pole, three-wire operation. Enclosure ratings include NEMA 1, 3R, 4, and 12, with UL Listed certification. Optional ground fault relay and auxiliary provisions enhance protective coverage without redesigning the control scheme.
Yes. The CB2533B120480G is tailored for motor control centers, switchboards, and distribution panels requiring high-current protection, built-in control power, and reliable fault clearing. Its bottom-feed, three-pole configuration supports robust three-phase protection in demanding environments, while the ground fault and auxiliary options enable scalable protection schemes.
The device is UL Listed and designed for NEMA 1, 3R, 4, and 12 enclosures, providing proven protection across indoor industrial environments. Optional features like Ground Fault Relay and auxiliary provisions help meet additional plant safety and control requirements without compromising certification status.
The product follows Eaton's warranty policy, typically one year from installation or eighteen months from shipment, whichever occurs first. Its integrated transformer and fusible protection reduce auxiliary components, simplify maintenance, and shorten downtime during fault events, delivering a favorable return on investment through improved system reliability.