Eaton CB3033T120480GRA9 Pringle bolted switch - UL Listed
Part Number: CB3033T120480GRA9
Quick Summary
Eaton pringle bolted pressure contact switch provides reliable protection for medium‑ to large‑scale electrical distributions. Facilities often struggle with nuisance trips, miscoordination with capacitor banks, and top‑feed installations that slow projects. UL Listed certification supports safety compliance, while the unit’s NEMA ratings and optional ground-fault features extend installation versatility in demanding environments. This solution also delivers robust protection in high‑current, high‑voltage applications, aligning with industrial switchgear needs and offering cost‑effective, long‑term reliability for plant-wide power distribution and motor control centers.
Product Information
Extended Description
CB3033T120480GRA9 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three on lights (trips switch),3000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480GRA9
UPC
782116951024
Product Length/Depth
22.5 in
Product Height
28 in
Product Width
40 in
Product Weight
390 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
3000A
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
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB3033T120480GRA9
Feature → Business Impact → Application: The CB3033T120480GRA9 is rated for 3000A at a 480V system with a 120V control circuit, enabling it to handle large feeders and motor control centers without oversizing protective devices. This reduces upstream wiring changes and improves protection coordination, directly supporting safer plant operations and lower lifecycle costs in industrial switchgear deployments. Application: Use in high‑current, three‑pole, three‑wire top‑fed configurations where personnel safety and reliable interlock is critical. Feature → Business Impact → Application: The SPVR capacitor trip device provides a capacitor‑based, single‑phase protection mechanism that minimizes nuisance trips and ensures dependable operation when the system includes power factor correction equipment. Application: Ideal for facilities with capacitor banks and variable loads, improving uptime and reducing maintenance calls. Feature → Business Impact → Application: Ground fault protection with an integrated control power transformer enhances fault detection and shutdown sequencing, increasing safety in dusty or wet environments. Application: Suitable for harsh industrial spaces in manufacturing and processing plants. Feature → Business Impact → Application: Optional Ground Fault Relay, Blown Fuse Detection, and Auxiliary Provisions give installers flexible protection schemes and simplified compliance documentation. Application: Use when regulatory or site‑specific fault detection requirements demand configurable safety features. Feature → Business Impact → Application: Top feed fuse configuration and rugged enclosure compatibility provide installation efficiency and durable service in demanding environments. Application: Best suited for ready‑to‑p TC switchgear retrofits or new builds in heavy electrical distributions that require reliable high‑current protection with straightforward maintenance and serviceability.
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FAQs
CB3033T120480GRA9 is a three‑pole bolted pressure contact switch rated for 3000A with a 480V system and a 120V control circuit. It uses fusible protection and supports multiple NEMA enclosures, making it suitable for large switchgear, motor control centers, and high‑current feeders.
Yes, CB3033T120480GRA9 is UL Listed, indicating compliance with recognized safety standards for electrical protection devices. This facilitates regulatory acceptance in UL‑listed assemblies and supports safer, code‑compliant installations in industrial environments.
Best suited for high‑current plant switchgear, motor control centers, and power distribution panels that require reliable three‑pole protection, top‑feed configuration, and ground fault considerations. The SPVR capacitor trip and fusible protection support coordinated protection for demanding manufacturing and processing facilities.
Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions are available to tailor protection schemes, enabling safer operation, easier testing, and enhanced fault isolation in complex electrical distributions.
Plan for top‑feed/fuse configuration, 480V system wiring, and a 120V control circuit. The unit is heavy (around 390 lb) and sized for large enclosures, so ensure proper mounting, adequate clearance, and compatible enclosure ratings. Consider optional ground fault and auxiliary provisions to meet site safety and regulatory requirements.