Eaton CB2533T120480K7 Pringle pressure switch - UL Listed
Part Number: CB2533T120480K7
Quick Summary
CB2533T120480K7 is a high-current pressure switch for motor control and safety interlocks. Engineers often face unreliable protection, difficult interlock sequencing, and installation challenges in demanding environments. This unit carries UL Listed certification and NEMA compatibility for 1, 3R, 4, and 12 enclosures, improving safety and compliance. The product is designed for top-feed, three-pole configurations with 2 NO-2 NC contacts and fusible protection. In practical terms, manufacturers gain faster commissioning, reduced downtime, and safer machine operation across industrial automation environments. Its interlock feature prevents premature closing, enabling controlled startup with minimized arcing and electrical noise.
Product Information
Extended Description
CB2533T120480K7 Eaton: Eaton pringle bolted pressure contact switch,Interlock,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
CB2533T120480K7
UPC
782116952083
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
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 - CB2533T120480K7
Feature: Amperage rating of 2500A and a 480V system voltage. Business Impact: Enables direct motor control for heavy loads, reducing the need for additional contactors and simplifying wiring. Application: Ideal for large pumps, conveyors, and other high-power machines in industrial environments. Feature: 120 V control voltage and a 3-pole, three-wire configuration with 2 NO-2 NC contacts. Business Impact: Provides flexible control logic for safe start/stop sequencing and robust interlocks. Application: Integrated control circuits in panelboards and switchgear installations. Feature: Top feed fuse configuration with interlock and optional ground fault relay and blown fuse detection. Business Impact: Improves fault detection, reduces nuisance trips, and supports single-phase protection where needed. Application: Main circuits in control panels with optional protective accessories. Feature: UL Listed with NEMA 1, 3R, 4, 12 enclosure ratings. Business Impact: Ensures regulatory compliance and suitability for harsh environments, lowering rework and downtime. Application: Industrial environments demanding durable enclosures and reliable safety performance. Feature: Rugged construction and availability of auxiliary/contact provisions. Business Impact: Simplifies retrofits and new installations, enabling scalable fault protection and retrofit compatibility. Application: Modular safety systems in manufacturing, water treatment, and packaging lines.
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FAQs
CB2533T120480K7 is designed for top-feed, three-pole installations with 2 NO-2 NC contacts and fusible protection. When wiring, follow the enclosure clearance guidelines, ensure proper interlock alignment, and verify that the UL Listed designation is matched to the intended NEMA enclosure. Use the optional ground fault or auxiliary contact provisions as needed for enhanced safety and control logic.
Key specifications include a 2500A amperage rating, 120 V control voltage, and a 480 V system voltage, with a three-pole, three-wire configuration and 2 NO-2 NC contacts. These features enable direct motor control for high-current loads, reduce panel complexity, and improve start/stop sequencing in demanding applications like conveyors and pumps.
Yes. The unit is UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures, making it suitable for a wide range of industrial environments—from clean rooms to harsh, dusty facilities. This certification streamlines compliance, minimizes rework, and supports safer, more reliable operation in production lines and switchgear assemblies.
Key certifications include UL Listed status and NEMA enclosure compatibility (1, 3R, 4, 12). Optional features to consider are Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These options enhance safety, fault detection, and protection against nuisance trips in complex safety circuits.
The Eaton Specification Sheet for CB2533T120480K7 provides detailed wiring diagrams, installation notes, and accessory options. Access it via Eaton’s catalog pages or the product URL referenced in the data. Having the sheet helps procurement standardize parts, plan preventive maintenance, and ensure correct compatibility with existing switchgear and control panels.