Eaton CB1233B120480G Pringle bolted switch - UL Listed
Part Number: CB1233B120480G
Quick Summary
Eaton CB1233B120480G Pringle bolted pressure switch protects high‑power control circuits in industrial systems. It addresses startup safety, nuisance trips, and downtime by delivering reliable protection with integrated control power transformation. UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures ensure regulatory compliance across harsh environments. Coupled with fusible protection and the option for fault-detection features, it streamlines installation, reduces wiring complexity, and lowers total cost of ownership in high-capacity electrical distributions. Engineers benefit from a compact form factor that accommodates tight panel layouts and reduces installation time. The product also supports optional Ground Fault Relay, Blown Fuse Detection, and Auxiliary Contact provisions for scalable protection schemes.
Product Information
Extended Description
CB1233B120480G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,1200A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233B120480G
UPC
782116898565
Product Length/Depth
16 in
Product Height
32 in
Product Width
24 in
Product Weight
200 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
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
1200A
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
With control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1233B120480G
Three-pole bottom-feed design with an integrated control power transformer simplifies protection coordination while reducing wiring complexity for panel builders. This configuration enables safer, faster commissioning and consistent control voltage distribution across feeders. It's especially valuable in motor control centers and switchgear where space is at a premium. Fusible protection at 480V ensures coordinated overcurrent protection right at the source, meeting common electrical codes and reducing fault spillover. This improves safety, lowers arc-flash exposure, and eases compliance with national standards. Suitable for feeders powering heavy equipment, pumps, and conveyors in manufacturing environments. Ground fault capability and optional fault-detection enhancements safeguard critical circuits against ground faults and single-phase disturbances. The embedded control transformer reduces components, cuts wiring hours, and speeds commissioning. Particularly beneficial in facilities requiring high reliability, such as process plants or data centers. UL Listed and NEMA 1/3R/4/12 compatibility provide rugged performance across environments. Optional auxiliary contacts and Kirk provisions offer scalable protection without reconfiguring existing panels. The unit supports 120V control while handling 480V main power efficiently. Size and weight signal a robust, industrial-grade enclosure ready for demanding installations. This translates to fewer field substitutions, improved long-term reliability, and a lower total cost of ownership.
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FAQs
The CB1233B120480G is a three-pole, bottom-feed switch designed for 480V main power and 120V control circuits. Install on a robust enclosure with proper mounting, route control wiring to the integrated transformer, and connect fusible protection as specified. Its bottom feed configuration simplifies conductor routing and minimizes panel footprint while maintaining safe clearance and proper torque on terminations. Always follow local codes and the UL Listed guidelines during installation.
Key specs include 1200A amperage rating, 480V system voltage, 480V maximum voltage, 120V control voltage, and three-pole, three-wire configuration. The device uses fusible protection and is UL Listed with NEMA 1/3R/4/12 compatibility. Verifying these ensures alignment with your feeder protection strategy, fault-current requirements, and enclosure selection for harsh environments.
Yes. The three-pole, bottom-feed design combined with an integrated control power transformer makes it ideal for motor control centers and large switchgear. It consolidates protection, control voltage distribution, and fault-detection options in a single unit, reducing wiring complexity and commissioning time while delivering robust protection for high‑power feeders.
This device is UL Listed and is compatible with NEMA ratings 1, 3R, 4, and 12, which supports safe operation in a range of environments—from clean rooms to exposed outdoor panels. UL Listing helps satisfy utility and electrical code requirements, while the NEMA ratings indicate suitability for damp, corrosive, or rugged installations.
The integrated control transformer reduces the number of external components, which lowers wiring hours and field assembly time. Fusible protection and optional fault-detection features improve reliability and safety, reducing downtime. A UL Listed, rugged enclosure minimizes maintenance surprises, while the scalable options (ground fault, auxiliary contacts) support future automation without panel rework.