Eaton CB2533B120480KAX Pringle bolted switch - UL Listed

Part Number: CB2533B120480KAX
Manufacturer
Eaton
Part number
CB2533B120480KAX

Quick Summary

CB2533B120480KAX is a bolted pressure contact switch for high-current interlock applications in industrial panels. Engineers struggle with dependable trips and space constraints in demanding environments. UL Listed certification and broad NEMA ratings—1, 3R, 4, 12—support safety compliance and rugged operation. This solution pairs bottom-feed configuration with fusible protection, optional Ground Fault Relay, single-phase protection, and auxiliary contacts to simplify wiring and service. In midsize to large manufacturing plants, CB2533B120480KAX delivers robust protection for MCCs, panels, and motor drives while enabling easy retrofit. Its three-pole, three-wire design and 480 V compatibility support scalable protection as facilities expand.

Product Information

Extended Description

CB2533B120480KAX Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with no lights (trips switch),2500A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B120480KAX
UPC
782116952670
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
Interlock, BFD with no lights (trips switch)
Feature: High-current capacity and three-pole design provide full-load protection for large motors and heavy equipment. Business impact: Reduces the risk of arcing, equipment damage, and unplanned downtime, translating to higher plant uptime and safer shutdown sequences. Application: Suitable for motor control centers and distribution panels in harsh industrial environments. Feature: Interlock with charge-before-close mechanism improves sequencing safety. Business impact: Minimizes operator exposure and accidental energization during maintenance, lowering risk and maintenance time. Application: Safety-critical interlock circuits in compact control rooms and compact switchgear. Feature: Bottom-feed and fusible protection simplify wiring and panel layout. Business impact: Streamlines installation, reduces wiring complexity, and supports standardized field terminations. Application: Retrofit projects and new builds where space is at a premium. Feature: Optional Ground Fault Relay, single-phase protection, auxiliary contacts, and Kirk/Aux provisions expand functionality. Business impact: Extends protection schemes, density of monitoring points, and integration with existing safety systems. Application: Systems requiring enhanced fault detection, status signaling, and control flexibility. Feature: UL Listed and broad NEMA ratings ensure compliance and rugged enclosure performance. Business impact: Enables compliance with safety guidelines and reliable operation in demanding environments. Application: Enclosures in wet or dusty environments where environmental protection matters. Feature: Bottom feed, three-wire configuration, 480 V system compatibility. Business impact: Reduces wiring errors and supports consistent power distribution across facilities. Application: Large-scale manufacturing and processing facilities needing durable protection with straightforward installation.

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FAQs

For installation, note the bottom-feed configuration, three-pole wiring, and 480 V system compatibility. Plan wiring with the optional ground fault relay and auxiliary contacts to expand monitoring and signaling. Ensure proper clearance and enclosure protection (NEMA ratings 1, 3R, 4, 12) and follow Eaton’s mounting guidelines to simplify commissioning and future maintenance.
The CB2533B120480KAX is UL Listed, demonstrating compliance with established electrical safety standards. Its NEMA ratings support protection in multiple enclosure environments, aiding regulatory conformity for panels and MCCs. Optional features such as Ground Fault Relay and auxiliary provisions help tailor the protection scheme to specific regulatory or customer requirements while maintaining safety margins.
Yes. The device’s interlock and charge-before-close mechanism are designed to integrate with Eaton safety and control architectures. Its three-pole, three-wire configuration and fusible protection align with common Eaton MCC and switchgear configurations. Optional provisions for auxiliary contacts and Kirk provisions facilitate smoother hardware compatibility and reduced integration risk when upgrading or retrofitting.
This switch excels in motor control centers, power distribution panels, and safety interlock circuits in manufacturing, processing, and heavy industry. Its high current rating (2500A) and fusion protection make it ideal for switchgear where reliable tripping and safety sequencing are critical, while bottom-feed design simplifies multi-cabinet installations and space-constrained environments.
The 2500A rating and 480 V system compatibility deliver durable performance with reduced downtime from nuisance trips and arc-flash events. UL Listed certification and NEMA enclosure compatibility support longer service intervals, while optional features enable tailored protection schemes, lowering long-term maintenance costs and extending asset life in busy facilities.