Eaton CB1233T120480GRA Pringle bolted pressure contact switch - UL Listed
Part Number: CB1233T120480GRA
Quick Summary
Eaton CB1233T120480GRA is a bolted pressure contact switch that protects high-current loads in industrial control panels. Operators and maintenance teams face nuisance trips and unreliable protection in harsh environments, which this design helps mitigate with precise trip logic. UL Listed certification backs safety compliance, and the unit supports rugged NEMA-rated enclosures for reliable field service. With 480 V system voltage and a 120 V control circuit, it integrates smoothly into existing plant power architectures while enabling top-feed installation. The device's three-pole, three-wire configuration supports robust control power distribution and ground fault detection, delivering safer operations. Coupled with optional ground fault relay and fuse protection, you can tailor protection schemes without sacrificing space or service time.
Product Information
Extended Description
CB1233T120480GRA Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three on lights (does not trip),1200A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233T120480GRA
UPC
782116955527
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), BFD with three normally on lights (does not trip)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1233T120480GRA
The CB1233T120480GRA delivers 1200A amperage rating for high-current feeders, translating to tighter protection zones and fewer upstream devices. This reduces panel footprint and maintenance costs while speeding fault isolation in critical lines such as presses and conveyors. It operates at 480V system voltage with a 120V control circuit, simplifying integration into common plant architectures and easing retrofits into existing control panels. The capacitor trip device (SPVR) minimizes nuisance trips while ensuring decisive action during genuine faults, improving overall uptime in manufacturing environments. Ground fault protection with a transformer further enhances safety, enabling early fault detection and safer operation in areas with higher personnel risk. Top-feed and fusible configurations streamline installation and service, supporting flexible layouts in switchgear and control panels. UL Listed certification and NEMA-rated enclosure compatibility reduce procurement risk and enhance field reliability for industrial automation projects.
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FAQs
The CB1233T120480GRA features a top feed and three-wire, three-pole design, making it straightforward to drop into many existing switchgear configurations. Its 480V system voltage and 120V control circuit align with common industrial power architectures, enabling retrofit without extensive wiring overhauls. For reliable integration, ensure enclosure ratings match the selected NEMA environment and verify fuse protection options are configured to your protection philosophy.
The SPVR capacitor trip device provides a controlled, pre-charged trip mechanism that reduces nuisance trips while preserving rapid response to genuine faults. This is particularly valuable in single-phase protection schemes where capacitor-based trip logic improves stability and minimizes unnecessary interruptions in production lines, helping maintain consistent machine availability without sacrificing safety.
Yes. The device is designed for 480V system voltage with a 120V control circuit, aligning with standard plant power distributions and control logic. Its three-pole, three-wire configuration supports robust distribution protection in industrial automation settings, while the UL Listed certification provides a recognized safety baseline for regulated environments.
This switch is UL Listed, a key safety certification for electrical protection devices. It also supports NEMA-rated enclosures (1, 3R, 4, 12), enabling safer operation in harsh industrial environments. When selecting for compliance, confirm UL recognition for your jurisdiction and match enclosure rating to your environmental conditions to ensure ongoing protection and serviceability.
With a 1200A rating and integrated ground fault protection, the CB1233T120480GRA reduces the number of components required for high-current protection and lowers maintenance complexity. The SPVR trip logic minimizes nuisance trips, improving machine uptime. In retrofit projects, faster installation and compatibility with top-feed, fusible configurations shorten commissioning time and improve overall system reliability, delivering measurable uptime and lifecycle cost savings.