Eaton CB3033T120480R Pringle bolted pressure contact switch - UL Listed
Part Number: CB3033T120480R
Quick Summary
Eaton CB3033T120480R is a high-capacity pringle bolted pressure contact switch designed for industrial motor protection and power distribution. Manufacturers and maintenance teams struggle with unreliable single‑phase protection and capacitor trips in harsh environments; this device provides controlled, repeatable action to minimize downtime. It carries UL Listed certification and is compatible with NEMA 1, 3R, 4, and 12 enclosures, helping you meet enclosure and installation standards. With a 3000 A rating, 480 V system capability, and 120 V control supply, it delivers robust protection while enabling scalable, cost-efficient panel design. In practice, you gain improved reliability, simpler maintenance, and better compliance across industrial automation and heavy electrical installations.
Product Information
Extended Description
CB3033T120480R Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),3000A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480R
UPC
782116951277
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
No ground fault
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)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033T120480R
Feature: High amperage rating of 3000A paired with 480V system capability. Business impact: Supports large motor and distribution loads with robust fault handling, reducing fuse changes and downtime. Application: Main disconnects in heavy-duty panels and power distribution centers. Feature: SPVR capacitor trip device enables controlled single‑phase protection and safer energization during startup. Business impact: Minimizes arc flash risk and protects downstream equipment, improving uptime. Application: Control circuits in high-energy environments. Feature: Top feed fuse configuration and top-feed wiring simplify installation and maintenance. Business impact: Reduces wiring complexity and service time during panel upgrades. Application: Retrofit projects and new installations in retrofit-ready cabinets. Feature: Three-pole, three-wire arrangement ensures reliable phase coordination. Business impact: Improves protection coordination and reduces mis-wiring risk. Application: Three-phase industrial power distribution panels. Feature: UL Listed and compatible with NEMA 1, 3R, 4, 12 enclosures for versatile installation. Business impact: Eases compliance and enclosure selection, lowering the cost of compliance. Application: Enclosed control enclosures in manufacturing and process environments. Feature: Optional Ground Fault Relay and auxiliary provisions offer expanded protection. Business impact: Adds monitoring and fault detection to reduce unplanned outages. Application: Panels requiring enhanced safety features and diagnostic visibility.
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FAQs
CB3033T120480R supports top feed and three-wire control configurations, making it suitable for many standard low-voltage motor control panels. Its three-pole design aligns with typical three-phase distribution, while the 120 V control supply integrates with common control circuits. For retrofit projects, ensure enclosure space accommodates the 28 in height and 40 in width footprint.
The capacitor trip device (SPVR) provides a controlled, rapid trip in single-phase fault or startup surge scenarios. This reduces arc energy and protects downstream equipment. In practice, you gain faster fault clearance, minimized nuisance trips, and safer energization sequences in motor control applications.
Yes. The CB3033T120480R is rated for a 480 V system with a 480 V maximum voltage, and it supports a 120 V control voltage. It is designed for industrial environments and is compatible with NEMA 1, 3R, 4, and 12 enclosures, making it suitable for a wide range of indoor and protected outdoor installations when properly enclosed.
This model is UL Listed, a key compliance credential for electrical safety. It also supports EN/industrial enclosure standards via its NEMA ratings (1, 3R, 4, 12), enabling installation in both indoor and enclosed outdoor settings. Optional ground fault relay provisions further enhance safety and monitoring capabilities in compliant panel designs.
The switch delivers high fault current handling (3000A) and reliable tripping with SPVR, reducing unexpected outages and maintenance costs. Its robust construction and standard enclosure compatibility shorten installation time, while UL and NEMA ratings streamline commissioning and long-term reliability in industrial automation environments.