Eaton CB2033B120480GRA Pringle bolted switch - UL
Part Number: CB2033B120480GRA
Quick Summary
The Eaton pringle bolted pressure contact switch is a robust protection device for large electrical systems in industrial facilities. Engineers often confront nuisance trips and wiring complexity; this unit combines a capacitor trip device with ground-fault sensing to reduce downtime and improve reliability. UL Listed certification underpins safety compliance, while its three-pole, 480 V system capability aligns with common industrial bus architectures in rugged environments. By delivering dependable protection in panel feeders and switchgear, this solution reduces maintenance costs and supports streamlined commissioning for plant workflows.
Product Information
Extended Description
CB2033B120480GRA Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three on 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
CB2033B120480GRA
UPC
782116957774
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 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 - CB2033B120480GRA
Feature: High amperage and voltage capability enables handling of demanding loads without frequent replacement. Business Impact: Reduces unplanned outages and lowers total cost of ownership by minimizing switchgear replacements. Application: Ideal for motor feeders and large line-side protections in manufacturing facilities. Feature: Ground fault with control power transformer improves fault detection and selectivity. Business Impact: Enhances safety and minimizes damage from ground faults, saving downtime. Application: Protects critical equipment in power distribution rooms with SPVR integration. Feature: Bottom feed configuration and three-pole, three-wire design simplify installation and wiring. Business Impact: Speeds up installation and reduces field wiring errors. Application: Fits existing enclosures and new builds with common bottom-feed layouts. Feature: Optional Ground Fault Relay and auxiliary provisions offer scalable protection options. Business Impact: Future-proofs the installation against evolving safety standards. Application: Retrofit projects and expanding control schemes. Feature: Electrical trip with charge-before-close mechanism reduces inrush and arcing. Business Impact: Improves reliability and protects downstream devices under fault conditions. Application: HV-LV interface points in switchgear assemblies.
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FAQs
CB2033B120480GRA is designed for 480 V three-pole installations with bottom feed and three-wire configuration. It supports NEMA-rated enclosures (NEMA 1, 3R, 4, 12) and integrates with standard switchgear assemblies, ensuring straightforward retrofit or new-build compatibility in industrial facilities.
The device provides a 2000 A amperage rating, 120 V control voltage, and a 480 V system voltage. It employs an electrical trip with a charge-before-close mechanism and includes options for SPVR capacitor trip and ground-fault protection, improving fault handling and reliability.
Yes. With its three-pole design and high current rating, CB2033B120480GRA is well-suited for motor feeders and main switchgear protections in industrial plants. The device’s protective features, including ground fault and capacitor trip, help safeguard motors and feeders while simplifying control integration.
The product is UL Listed, confirming compliance with established electrical safety standards. It also aligns with common NEMA enclosure ratings (1, 3R, 4, 12) for compatible environmental protection. These certifications support safer installation, easier regulatory review, and confidence in performance under industrial conditions.
The unit carries Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever comes first. For ROI, focus on maintenance-friendly features such as reliable SPVR trip, optional ground-fault relay, and low-maintenance bottom-feed design, which reduce downtime and extend service life in mission-critical power systems.