Eaton CB1233B120480GRA9 Bolted Pressure Contact Switch - UL Listed
Part Number: CB1233B120480GRA9
Quick Summary
The Eaton CB1233B120480GRA9 bolted pressure contact switch is a rugged, three-pole protection device for switchgear and control panels in industrial settings. Engineers often face nuisance trips and slow fault isolation, and this unit’s capacitor trip device (SPVR) along with a ground-fault option helps reduce unplanned downtime. UL Listed certification underpins safety and reliability, while its NEMA-compatible enclosure ratings support operation in diverse environments. With 1200 A capacity at 480 V and a 120 V control circuit, this switch balances high current needs with straightforward integration for industrial automation, power distribution, and machine control applications.
Product Information
Extended Description
CB1233B120480GRA9 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three on lights (trips switch),1200A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233B120480GRA9
UPC
782116956265
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
Single-phase voltage relay with capacitor trip device (SPVR), BFD with three normally on lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1233B120480GRA9
Feature: High amperage and system voltage capability enables reliable switching of large loads. Benefit: Reduces conductor stress and enables safer, more efficient power distribution. Application: Main feeders and switchgear in manufacturing plants and data centers. The ability to handle 1200 A at 480 V translates to fewer devices in parallel and lower total installed cost over time. Feature: Single-phase relay with capacitor trip device (SPVR) and three on-lights indicating trip status. Benefit: Improves fault visibility and accelerates fault diagnosis, minimizing downtime. Application: Protective relays in control panels and power distribution centers. Feature: Bottom feed and bottom fuse configuration for simplified installation. Benefit: Eases retrofits and ensures compatibility with existing panel layouts, reducing installation time and errors. Application: Retrofit projects and new installations with standard bottom-fed gear. Feature: Ground fault capability with transformer-powered control circuit. Benefit: Enhanced safety and fault detection in grounded systems, meeting stricter safety requirements. Application: Industrial automation and process control where ground-fault protection is critical. Feature: NEMA ratings (1, 3R, 4, 12) provide enclosure compatibility. Benefit: Broad environmental suitability, fewer enclosure constraints, and easier compliance. Application: Harsh or variable environments in manufacturing, packaging, and material handling. Feature: Optional Ground Fault Relay, Auxiliary Contact Provisions, Kirk Provisions. Benefit: Customization extends protection options and integration with annunciation and control schemes. Application: Systems requiring expandability and advanced signaling. Feature: 1-year warranty (or 18 months from shipment). Benefit: Lower long-term ownership risk and predictable maintenance budgeting. Application: Equipment lifecycle planning in plant environments.
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FAQs
This unit uses a bottom feed configuration and three-pole, three-wire wiring at 480 V with a 120 V control circuit. Plan for a 16 in depth, 24 in width, and 32 in height footprint and a 200 lb weight, ensuring adequate mechanical support and room for wiring access. Confirm enclosure compatibility with the specified NEMA ratings and ensure proper grounding.
Key ratings include 1200A amperage, 480V system voltage, 120V control voltage, and fusible protection. The device is a three-pole switch with SPVR (capacitor trip) and a ground fault option. It is designed for reliable protection in demanding switchgear, with clear trip indication via BFD lights.
Ideal for heavy-duty power distribution in manufacturing, process industries, and data centers. Suitable for control panels and switchgear requiring reliable protection for large loads, with SPVR trip capability and optional ground fault protection. Its NEMA-rated enclosure supports installation in varied environments, from clean rooms to rugged plant floors.
Yes, the CB1233B120480GRA9 is UL Listed, providing recognized safety compliance for electrical equipment. It also supports NEMA enclosure ratings (1, 3R, 4, 12) for diverse environmental compatibility. When designing systems, verify your site requirements align with UL safety expectations and enclosure standards.
The unit carries Eaton's warranty policy of one year from installation or eighteen months from shipment, whichever occurs first, reducing risk of unexpected failures. For ROI, consider reduced downtime from SPVR protection, ease of retrofits due to bottom-feed design, and the option to add Ground Fault Relay and auxiliary provisions for extended control integration.