Eaton CB2533T120480KA97 Pringle bolted pressure contact switch - UL Listed
Part Number: CB2533T120480KA97
Quick Summary
Eaton pringle bolted pressure contact switch enables high-current interlocks in industrial electrical systems. Maintenance teams often struggle with fault detection and compatibility when upgrading switchgear, leading to downtime and costly rewiring. UL Listed certification provides essential safety compliance, while the design supports rugged NEMA-rated enclosures (NEMA 1, 3R, 4, 12) for harsh environments. By pairing 2500A capacity with 120V control and 480V system readiness, it aligns with modern plant power architectures and procurement expectations. This combination delivers reliability, reduces maintenance cycles, and supports scalable safety architectures in large facilities, making it a strong fit for high-current applications, switchgear modernization, and safety-critical interlocks.
Product Information
Extended Description
CB2533T120480KA97 Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with three on lights (trips switch),2500A,2NO-2NC,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480KA97
UPC
782116952038
Product Length/Depth
17 in
Product Height
28 in
Product Width
28 in
Product Weight
205 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.
Contact configuration
2 NO-2 NC
Feed type
Top
Fuse configuration
Top 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 three normally on lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB2533T120480KA97
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 2500A amperage rating. Impact: enables direct switching of high-current loads, reducing external contactors and wiring complexity. Application: ideal for large motor control centers and main feeders in manufacturing plants that demand robust, uninterrupted power delivery. Feature: 2 NO-2 NC contact configuration. Impact: provides flexible control wiring and safer interlocks, allowing mixed control schemes and faster changeovers. Application: safety circuits, machine interlocks, and panel-board wiring where versatile contact arrangements simplify commissioning. Feature: Top feed fuse configuration. Impact: simplifies wiring, lowers conduit and termination costs, and accelerates installation. Application: cabinets and switchgear with a top-fed feeder layout common in industrial control panels. Feature: Three-pole design with 480 V system readiness and 120 V control. Impact: synchronized actuation across three phases, improved protective coordination, and compatibility with existing plant power structures. Application: three-phase motor circuits and process lines requiring reliable, coordinated protection. Feature: Interlock with BFD lights and optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection. Impact: proactive fault signaling and enhanced fault isolation, reducing unplanned downtime and speeding maintenance. Application: hazardous-area equipment, critical safety circuits, and systems requiring quick fault diagnosis. Feature: UL Listed certification and rugged enclosure compatibility (NEMA 1, 3R, 4, 12). Impact: regulatory compliance and durable performance in harsh environments, supporting long service life. Application: switchgear retrofit programs and new installations in manufacturing facilities seeking proven, compliant protection.
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FAQs
Top-feed configuration simplifies wiring and reduces conduit runs, but requires precise alignment with enclosure knockouts and feed-through terminals. For best results, plan feeder routing before mounting, verify three-pole alignment, and follow UL safety guidelines during wiring to ensure reliable operation and maintain proper clearances around the fusible elements.
The CB2533T120480KA97 is rated for 2500A with a 120V control circuit and 480V system voltage. It uses a 2NO-2NC contact configuration across three poles, making it suitable for high-current, three-phase motor and process_line protection in switchgear environments.
Yes. Its three-pole, fusible design with interlock capability and three normally-on lights supports robust safety interlocks in motor control centers and machine guarding applications. The UL Listed certification further reinforces compliance for industrial installations.
The device is UL Listed and compatible with NEMA-rated enclosures including NEMA 1, 3R, 4, and 12, ensuring reliable operation in a range of industrial environments and meeting common safety and environmental protection standards.
Optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection can be added to improve fault visibility and reduce unplanned downtime. Regular inspection of interlock status indicators (BFD lights) and periodic test cycles are recommended to sustain reliability and shorten maintenance windows.