Eaton CB1233B120480GR7 Pringle bolted switch - UL Listed

Part Number: CB1233B120480GR7
Manufacturer
Eaton
Part number
CB1233B120480GR7

Quick Summary

CB1233B120480GR7 is a bolted switch with capacitor trip (SPVR) designed for high-current protection in industrial power systems. This unit helps engineers avoid costly downtime by delivering fast, dependable fault clearing even in harsh environments. UL Listed compliance accompanies rugged NEMA guidance (NEMA 1, 3R, 4, 12) to support reliable indoor and outdoor installations. With optional ground fault protection and auxiliary provisions, it supports scalable protection schemes and simplified maintenance. Designed for bottom-feed, three-pole configurations with 120V control and 480V system voltage, it integrates with Eaton's protection accessories to streamline installation and service life. In procurement terms, standardization, UL compliance, and modular accessories help reduce spare parts inventory and simplify commissioning.

Product Information

Extended Description

CB1233B120480GR7 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),1200A,2NO-2NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1233B120480GR7
UPC
782116956302
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.
Contact configuration
2 NO-2 NC
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)
Feature: High amperage rating of 1200A with a 2NO-2NC contact configuration. Business Impact: Enables direct switching of large motors and high-current feeders, reducing panel count and wiring complexity. Application: Suitable for heavy-duty MCCs and switchgear where robust make/break performance is essential. Feature: Capacitor trip device (SPVR) for single-phase protection. Business Impact: Delivers fast, reliable tripping and improved selectivity, improving system uptime and fault isolation. Application: Critical in mixed 3-phase environments where single-phase faults must be detected promptly without compromising overall protection strategy. Feature: Fusible protection and 480V system rating with bottom feed. Business Impact: Supports coordinated protection with fuse configurations, enabling safer startup and operation in demanding environments. Application: Large machines and pumps in production lines where consistent protection and easy wiring are valued. Feature: Ground fault options and catalog flexibility (Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, Auxiliary Contact Provisions). Business Impact: Expands protection schemes without redesigning panels, reducing downtime and service costs. Application: Modern electrical rooms and automation cabinets requiring modular safety features. Feature: UL Listed with NEMA ratings (1, 3R, 4, 12). Business Impact: Ensures compliance and reliable performance in a range of indoor and outdoor installations, simplifying procurement and acceptance testing. Application: Global OEMs and integrators seeking standards-based protection with long service life. Experience: The combination of rock-solid protection, configurable options, and Eaton’s ecosystem delivers measurable improvements in equipment reliability, maintenance planning, and total cost of ownership for industrial automation projects.

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FAQs

The CB1233B120480GR7 is designed for bottom-feed, three-pole installation with 2NO-2NC contacts. Use appropriate enclosure, mount to a sturdy base, and connect the bottom-fed power and control conductors per the NEMA-rated enclosure. Ensure the control power transformer and ground-fault option (if used) are wired to the SPVR circuit as specified by Eaton installation guidelines. Verify wiring integrity and perform a functional trip test after installation.
Verify 1200A amperage rating, 480V system voltage, 120V control voltage, and 2NO-2NC contact configuration. Confirm fusible protection, bottom feed, and three-pole, three-wire setup. Check NEMA ratings (1, 3R, 4, 12) for enclosure compatibility and ensure UL Listed certification is documented for your compliance requirements.
Yes. The 1200A rating, 480V system, SPVR capability, and bottom-feed three-pole design are tailored for MCCs and switchgear. The UL Listed status and available optional protections (ground fault, fuse detection, auxiliary provisions) support scalable, maintainable protection schemes commonly used in MCC installations.
Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions extend protection coverage and status signaling. These accessories help align the device with broader protection architectures, simplify commissioning, and improve fault diagnostics in automated plants.
Eaton provides a warranty per policy 25-000, one year from installation or eighteen months from shipment, whichever occurs first. For service, reference Eaton’s support resources and distributor channels, and maintain documentation for UL compliance and spare parts compatibility to minimize downtime and sustain long-term performance.