Eaton CB2533T120480KG7 Pringle bolted pressure switch - UL
Part Number: CB2533T120480KG7
Quick Summary
The Eaton pringle bolted pressure contact switch is a high-current safety device designed for industrial switchgear and distribution panels. It addresses the common challenge of reliable interlock operation under 480 V systems and 2500 A loads, helping prevent unintended startup and improve personnel safety. This UL Listed component also carries robust NEMA ratings including 1, 3R, 4, and 12, signaling compatibility with varied enclosure environments. By combining a top-feed design with fusible protection and a 120 V control voltage, it integrates smoothly with existing control circuits while delivering dependable protection and long-term cost savings for maintenance-intensive applications. For engineers, this means faster installation, fewer nuisance trips, and stronger compliance across safety standards.
Product Information
Extended Description
CB2533T120480KG7 Eaton: Eaton pringle bolted pressure contact switch,Interlock,2500A,2NO-2NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533T120480KG7
UPC
782116951970
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
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
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB2533T120480KG7
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The CB2533T120480KG7 delivers 2500 A amperage rating, enabling direct switching of high-current feeders without auxiliary contactors, reducing component count and potential failure points in critical power paths. This translates to improved system reliability and lower lifecycle costs for large motor and distribution applications, such as packaging lines or material handling systems. Feature → Application → Long-tail keyword: 2NO-2NC contact configuration provides flexible control and signaling options for complex interlock schemes, facilitating integration with PLCs and safety relays in automated lines while enabling faster fault diagnostics. Feature → Benefit → NEMA/UL compliance: UL Listed and NEMA 1/3R/4/12 ratings ensure safe enclosure protection in harsh environments, boosting regulatory compliance and minimizing downtime due to environmental ingress. Feature → Benefit → Top feed and ground fault capability: Top feed configuration supports convenient wiring in compact switchgear, while ground fault options with control transformer improve personnel safety and fault isolation, reducing risk in high-energy systems. Feature → Benefit → Installation efficiency: 3-pole, 3-wire design simplifies panel layouts and reduces wiring complexity during retrofit projects, enabling quicker commissioning and easier spare-part planning. Feature → Benefit → Warranty and support: One-year warranty aligns with Eaton policy, providing predictable service life expectations and streamlined procurement for maintenance teams in upgrade projects, reinforcing total cost of ownership advantages.
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FAQs
Installation should follow the top-feed configuration, with proper mounting in a compliant enclosure rated for NEMA 1/3R/4/12. Ensure the control transformer is correctly wired for 120 V control, and verify fusible protection is matched to system amperage. Optional ground fault relay provisions can be added to enhance safety without altering primary wiring.
The device handles 2500 A with a system voltage of 480 V and a control voltage of 120 V. It is a three-pole switch with 2NO-2NC contact configuration, designed for fusible protection and top-feed wiring in industrial panels, backed by UL listing and NEMA 1/3R/4/12 compatibility.
Yes. The CB2533T120480KG7 supports top-feed configuration and ground fault protection options (with a control power transformer). This combination improves fault isolation, safety interlock integrity, and reliability in high-energy distribution panels and safety-critical circuits.
The product is UL Listed and carries NEMA ratings of 1, 3R, 4, and 12, ensuring enclosure protection and compliance for broad industrial environments. Optional ground fault and auxiliary provisions can be integrated while maintaining compliance, supporting safer and more reliable operation in automated facilities.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever comes first. Routine maintenance includes inspecting interlocks, verifying contacts for wear, and testing ground fault protections if installed. This minimizes unexpected failures and supports a lower total cost of ownership in high-demand applications.