Eaton CB1233B120480K Pringle bolted pressure contact switch - UL Listed
Part Number: CB1233B120480K
Quick Summary
Eaton pringle bolted pressure contact switch protects 480V distribution panels by delivering reliable interlock-enabled protection. This rugged device helps prevent unplanned trips that lead to production downtime and costly maintenance. UL Listed and compatible with broad NEMA ratings (NEMA 1, 3R, 4, 12), it also supports optional ground fault relay, blown fuse detection, and auxiliary contacts for enhanced monitoring. In practice, engineers value its 1200A capacity and 480V system voltage, which align with heavy-duty industrial feeders while the 120V control circuit simplifies integration with existing control schemes. For procurement teams, the combination of safety features, enclosure compatibility, and Eaton’s warranty can reduce total cost of ownership while improving panel reliability.
Product Information
Extended Description
CB1233B120480K Eaton: Eaton pringle bolted pressure contact switch,Interlock,1200A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233B120480K
UPC
782116956227
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
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
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
Interlock
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1233B120480K
High amperage protection and rugged control voltage: The CB1233B120480K is rated for 1200A at a 480V system, with a 120V control circuit. This enables reliable protection for large feeders and motors, reducing fuse changes and downtime while simplifying control integration for plant automation. Ideal for main switchgear and heavy machinery feeders in manufacturing and processing facilities. Three-pole, bottom-feed with fusible protection: This arrangement simplifies wiring and provides dependable fault isolation, lowering arc exposure and maintenance complexity in compact switchgear. Interlock with charge-before-close mechanism: Enhances operator safety during switch operations, reducing arcing risk and improving safety compliance in maintenance routines. UL Listed with broad NEMA ratings: Meets essential safety and environmental requirements for indoor enclosures (NEMA 1, 3R, 4, 12), streamlining code compliance and panel selection in industrial environments. Optional protection and provisions: Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contacts, and Kirk provisions expand monitoring and PLC integration for critical line protection and diagnostics. Physical footprint and mounting compatibility: Dimensions of 16 in L × 24 in W × 32 in H and a 200 lb weight support straightforward installation and integration into standard panel layouts.
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FAQs
Begin with de-energizing the panel and confirming no voltage present. Mount the switch in a compliant enclosure, connect bottom-feed 3-wire conductors to the appropriate poles, and attach the 120V control circuit. Verify interlock functionality and, if used, install optional ground fault relay or auxiliary contacts per Eaton installation instructions to ensure safe, code-compliant operation.
Key specs include a 1200A amperage rating, 480V system voltage and voltage-max of 480V, 120V control voltage, three-pole configuration, bottom-feed fuse arrangement, and fusible protection. The unit is UL Listed and supports NEMA 1, 3R, 4, and 12 enclosures, making it suitable for demanding industrial environments.
Yes. The switch is compatible with NEMA ratings 1, 3R, 4, and 12, which covers indoor panels, outdoor-rated enclosures, and corrosive environments. This broad compatibility simplifies code compliance, reduces enclosure customization, and supports safer, more durable installations in factories and processing facilities.
CB1233B120480K is UL Listed, providing recognized safety certification for electrical devices. This certification helps satisfy regulatory requirements for industrial control panels, accelerates procurement approvals, and reduces risk when integrating with other UL-listed components in your control system.
The 1200A rating supports longer service intervals for high-load feeders, reducing fuse replacements and downtime. Optional features like Ground Fault Relay and Blown Fuse Detection improve fault diagnosis, while the interlock mechanism enhances safety, contributing to lower maintenance costs and stronger overall equipment reliability in production lines.