Eaton CB2033B120480GRAO Pringle bolted pressure contact switch - UL Listed
Part Number: CB2033B120480GRAO
Quick Summary
Eaton CB2033B120480GRAO bolted pressure contact switch provides single-phase protection for industrial power panels. For engineers and procurement teams, it reduces mis-trips and field service time by delivering a capacitor trip device with reliable SPVR protection. UL Listed and designed for demanding environments, it supports NEMA 1, 3R, 4, and 12 enclosures and offers optional Ground Fault Relay, Blown Fuse Detection, auxiliary contacts, and Kirk provisions. The bottom-feed, three-pole, fusible configuration operates at 120 V control voltage and 480 V system voltage, with a 16 in × 24 in × 32 in footprint and 190 lb weight, enabling straightforward installation, robust protection, and long-term reliability in control panels.
Product Information
Extended Description
CB2033B120480GRAO Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three off lights (does not trip),2000A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB2033B120480GRAO
UPC
782116957750
Product Length/Depth
16 in
Product Height
32 in
Product Width
24 in
Product Weight
190 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
2000A
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 off 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 - CB2033B120480GRAO
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The SPVR capacitor trip device provides precise coordination for single-phase protection, reducing nuisance trips and enabling faster fault isolation in motor control centers and switchgear assemblies. This translates to lower downtime, improved uptime, and predictable maintenance windows in high-demand manufacturing lines. Application-wise, the CB2033B120480GRAO fits three-pole, bottom-fed, fusible configurations for bottom-feed panels and compact control enclosures in industrial facilities. Feature → Business Impact → Application: UL Listed safety certification supports regulatory compliance during internal audits and customer reviews, reducing procurement risk and accelerating approvals for new builds and retrofits. Application includes commercial/industrial distribution centers and process plants needing reliable ground fault mention as an option. Feature → Business Impact → Application: NEMA 1, 3R, 4, 12 compatibility broadens enclosure choices, enabling safer installations in humid or dusty environments and simplifying field retrofits. Feature → Business Impact → Application: 2000 A and 480 V system ratings deliver robust fault current handling for large feeders, improving overall protection for power distribution panels and reducing spare parts inventory with a single, proven solution. Feature → Business Impact → Application: Bottom feed and auxiliary contact provisions provide installation flexibility and future expansion, supporting Kirk provisions and auxiliary control circuits for scalable panel designs.
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FAQs
CB2033B120480GRAO supports bottom-feed, three-pole, fusible configurations for industrial control panels. Its 120 V control voltage and 480 V system voltage suit large feeders in switchgear and power distribution panels, with UL Listed safety and NEMA ratings to adapt to diverse enclosures (NEMA 1, 3R, 4, 12). It also accommodates optional ground fault and auxiliary contact provisions for expanded control logic.
The SPVR (single-phase voltage relay with capacitor trip) uses a capacitor to provide a controlled trip signal during a single-phase fault. This improves coordination with downstream protective devices, reduces nuisance trips, and ensures a faster, safer shutdown of affected circuits, which is critical for protecting motors and other loads in industrial panels.
Yes. The unit is rated for 480 V system voltage and 2000 A amperage, designed for robust protection in 3-wire, three-pole configurations. Its NEMA compatibility and fusible protection make it suitable for large-scale industrial networks, process plants, and distribution panels requiring reliable single-phase protection and safe operation in harsh environments.
This switch is UL Listed, ensuring compliance with safety standards for electrical equipment. It also supports broad enclosure compatibility with NEMA ratings (1, 3R, 4, 12), enabling safe operation in varied conditions. Optional features like Ground Fault Relay and auxiliary provisions add to regulatory compliance and system safety in complex control panels.
Warranty covers one year from installation or 18 months from shipment, whichever occurs first. Maintenance considerations include periodic inspection of fusible elements, SPVR functionality, and contact surfaces. The device’s robust build and compatible features minimize downtime and simplify spare parts management, providing long-term value for capital-intensive installations.