Eaton CB2533B1204807 Pringle bolted switch - UL Listed
Part Number: CB2533B1204807
Quick Summary
CB2533B1204807 bolted pressure switch delivers high-current control for industrial power distribution and motor protection. Many facilities face reliability and protection gaps in compact panels, making a rugged, bottom-fed, 3-pole switch essential for uptime. UL Listed certification, plus NEMA ratings from 1 through 12, ensures safe operation across indoor enclosures and harsher environments. With 2500A capacity, 480V system voltage, and 120V control, this solution combines high performance with straightforward installation. Warranty coverage and optional features such as ground-fault relief and blown-fuse detection deliver long-term value in power-distribution projects, translating into lower total cost of ownership for industrial facilities.
Product Information
Extended Description
CB2533B1204807 Eaton: Eaton pringle bolted pressure contact switch,2500A,2NO-2NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2533B1204807
UPC
782116953004
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.
Contact configuration
2 NO-2 NC
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
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 - CB2533B1204807
Feature → Business Impact → Application: The 2500A amperage rating supports large motors and feeders, enabling engineers to consolidate switchgear while reducing parts diversity; the result is higher protection level with lower maintenance costs in motor control centers and distribution panels. Feature → Business Impact → Application: The 2NO-2NC contact configuration provides flexible control logic and fail-safe operation for interlocks and sequencing in complex control schemes, improving diagnostic clarity and reducing downtime in critical processes. Feature → Business Impact → Application: Bottom feed and fusible protection simplify wiring workflows and enhance circuit protection, enabling cleaner panel layouts and faster installation in new builds or retrofit projects. Feature → Business Impact → Application: The 480V system voltage paired with 120V control voltage delivers compatibility with common industrial power networks, enabling seamless integration into existing plant infrastructure and reducing engineering lead times. Feature → Business Impact → Application: Optional ground fault relay, blown fuse detection, single-phase protection, and auxiliary provisions offer enhanced safety and diagnostics, cutting investigation time and improving compliance in safety-critical applications. Feature → Business Impact → Application: NEMA ratings from 1 to 12 broaden the environmental scope, supporting installation from clean rooms to exposed outdoors in harsh facilities while maintaining reliability and reducing risk of unplanned downtime.
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FAQs
This unit uses a bottom-feed configuration with a three-pole, three-wire setup. Plan for a footprint of approximately 17 in L x 28 in W x 32 in H and a weight around 235 lb. Follow the Eaton wiring diagram from the spec sheet, ensure enclosure ratings meet the NEMA requirements, and verify UL Listed compliance during installation to maintain safety and performance.
Yes. The switch is rated for 480V system voltage with a 2500A amperage rating and 120V control voltage. It uses a 2NO-2NC contact configuration for flexible control, and it is fusible, providing reliable protection for high-current feeders in motor control centers and power distribution panels.
The device is UL Listed and carries multiple NEMA ratings (1, 3R, 4, 12), enabling usage from standard indoor enclosures to more demanding environments. The combination of UL certification and broad NEMA compatibility helps ensure regulatory compliance and safer operation across varied facilities.
Yes. Catalog notes indicate options such as Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions are AVAILABLE, allowing tailored protection schemes and enhanced diagnostics to meet specific safety and reliability requirements.
The robust construction and high-current rating reduce unplanned downtime in critical lines, while optional diagnostics shorten fault investigations. A UL Listed device with solid NEMA compatibility and Eaton warranty support translates to lower maintenance costs and improved system availability over the equipment life cycle.