Eaton CB1233T120480GR Pringle bolted switch - UL Listed
Part Number: CB1233T120480GR
Quick Summary
Eaton CB1233T120480GR bolted pressure switch provides reliable high-current protection for industrial switchgear and motor feeders. When wiring and protection schemes become a maintenance headache, this unit simplifies top-feed configurations and fault protection. It carries UL Listed certification and compatible NEMA ratings (1, 3R, 4, 12) to meet indoor and outdoor applications. The combination of a 1200A amperage rating at 480V and optional SPVR capacitor trip device supports dependable protection with reduced nuisance trips. This makes it a practical choice for engineers seeking robust, easy-to-install protection in automation and distribution systems, while aligning with safety and reliability requirements.
Product Information
Extended Description
CB1233T120480GR Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),1200A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233T120480GR
UPC
782116955602
Product Length/Depth
16 in
Product Height
28 in
Product Width
24 in
Product Weight
180 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
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
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
Single-phase voltage relay with capacitor trip device (SPVR)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1233T120480GR
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The CB1233T120480GR is rated for 1200A at 480V, enabling it to protect large motor feeders and power distribution circuits with a single, robust device. This reduces the risk of arc faults and equipment damage, lowering downtime and maintenance costs in industrial plants. Application: ideal for high-current switchgear in manufacturing lines and process industries where uptime is mission-critical. Feature → Business Impact → Application: The SPVR capacitor trip device provides fast, controlled tripping with a charge-before-close mechanism, minimizing nuisance trips and preserving motor life. Application: essential in systems with capacitive starting or sensitive loads, improving reliability in automation Controls and drives. Feature → Business Impact → Application: Top-feed fuse configuration and ground fault integration simplify wiring, enable clear fault isolation, and streamline preventive maintenance. Application: fits compact switchgear footprints and retrofit projects where clear fault visibility saves commissioning time. Feature → Business Impact → Application: Three-pole, three-wire architecture aligns with standard 3-phase systems, ensuring compatibility across global industrial networks. Application: common in conveyor lines, pumps, and processing equipment. Feature → Business Impact → Application: UL Listed with compatible NEMA ratings (1, 3R, 4, 12) delivers regulatory compliance and versatile installation options. Application: supports both indoor control rooms and rugged outdoor enclosures. Feature → Business Impact → Application: 1200A and fusible protection provide robust fault isolation and predictable protection curves, reducing total cost of ownership. Application: suitable for large-capacity feeders and critical load protection in energy-intensive facilities.
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FAQs
When retrofitting CB1233T120480GR, verify top-feed wiring, correct fuse configuration, and three-wire three-phase connections. Ensure enclosure rating matches the environment (NEMA compatibility) and confirm SPVR option availability. Plan for ground fault wiring with the control transformer and provide space for the 16x24x28 inch footprint and 180 lb unit weight for safe handling.
The SPVR device delivers a capacitor-assisted trip with a charge-before-close sequence, reducing nuisance trips on transient starts and capacitive loads. This enhances motor protection and reliability while maintaining fast, predictable tripping curves during fault conditions, which translates to lower maintenance costs and less unscheduled downtime in driven applications.
Yes. The unit is designed for 480V system voltage and supports three-pole, three-wire configurations. UL Listed certification and compatible NEMA ratings (1, 3R, 4, 12) provide assurance for both indoor and rugged outdoor installations, making it suitable for diverse industrial environments and demanding process areas.
The CB1233T120480GR carries UL Listed certification and supports standard NEMA enclosure ratings (1, 3R, 4, 12). These approvals help ensure compliance with safety and reliability requirements in typical industrial power distribution and controls architectures.
The switch reduces downtime through higher current protection (1200A) and fewer nuisance trips thanks to SPVR. Its top-feed configuration simplifies wiring during installation and retrofits, while UL/NEMA compliance minimizes regulatory risk. Over time, fewer unexpected outages and easier field servicing translate to lower total cost of ownership.