Eaton CB2533B120480KGAX Pringle bolted pressure switch - UL Listed
Part Number: CB2533B120480KGAX
Quick Summary
Eaton CB2533B120480KGAX is a bolted pressure switch designed for high-capacity motor control in industrial power distributions. Engineers often confront space constraints and wiring complexity when mounting large disconnects in MCCs and switchgear. UL Listed safety certification, along with compatibility to NEMA 1, 3R, 4, and 12 enclosures, helps meet stringent electrical standards on site. With a 2500 A rating at 480 V and a 120 V control supply, this switch delivers robust protection while installation remains straightforward, reducing downtime and maintenance costs. Optional features such as Ground Fault Relay and fault-detection options further enhance reliability in demanding environments.
Product Information
Extended Description
CB2533B120480KGAX Eaton: Eaton pringle bolted pressure contact switch,Interlock,2500A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,BFD with no lights (trips switch),Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480KGAX
UPC
782116952632
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
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
Interlock
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2533B120480KGAX
Feature → Business Impact → Application: The CB2533B120480KGAX delivers a 2500 A amperage rating, enabling it to safely interrupt large motor feeders and prevent damaging faults, which translates to higher equipment uptime and lower replacement costs in heavy industrial lines such as pump and conveyor drives. Application: ideal for main disconnects in motor control centers and switchboards where high current handling and reliable trip mechanisms are critical. Feature → Business Impact → Application: Bottom feed and fusible configuration simplify wiring access in tight electrical rooms, reducing installation time and cabinet modification costs. Application: saves space in compact switchgear layouts and facilitates quicker maintenance or upgrades. Feature → Business Impact → Application: Interlock with charge-before-close ensures safe energization sequencing, minimizing arc flash risk and protecting operators during maintenance. Application: widely used in process lines and packaging equipment with frequent cycling. Feature → Business Impact → Application: Optional Ground Fault Relay, single-phase protection, and auxiliary contact provisions provide layered safety and diagnostics, improving compliance and reducing unplanned downtime. Application: suitable for plants prioritizing preventive maintenance and fault detection. Feature → Business Impact → Application: UL Listed certification and NEMA-compatible housing offer confidence for audits and system integration across distribution panels, ensuring consistent performance in harsh environments. Application: recommended for large-capacity feeders and critical machinery in manufacturing facilities.
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FAQs
This model uses bottom feed and a three-pole configuration with fusible protection, designed for straightforward wiring in constrained spaces. Ensure a dedicated layout that accommodates its 17 in length, 32 in height, and 28 in width, and provide clearance for maintenance and interlock components. Follow Eaton installation guidelines to minimize wiring errors and maximize enclosure integrity.
Yes, there is an optional Ground Fault Relay and related protection options offered. When combined with a control power transformer for ground fault sensing, this provides enhanced safety and rapid fault indication, reducing risk of electric shock and equipment damage in critical feeder circuits.
The switch is rated for 2500 A with a system voltage of 480 V and a control voltage of 120 V. It supports a maximum voltage of 480 V and is designed for fusible protection. It is compatible with NEMA 1, 3R, 4, and 12 enclosures, making it suitable for a broad range of industrial environments.
The CB2533B120480KGAX is UL Listed, providing recognized electrical safety certification. Its design supports compatibility with common enclosure standards (NEMA ratings) to help meet regulatory and safety requirements across industrial facilities.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Routine maintenance can focus on inspecting the interlock, checking the charge-before-close mechanism, and verifying fuse integrity to sustain protective performance and extend service life.