Eaton CB3033B120480RCT Bolted pressure switch - UL Listed
Part Number: CB3033B120480RCT
Quick Summary
CB3033B120480RCT is a bolted pressure switch for high-current single-phase protection in industrial control panels. This solution addresses nuisance trips and inconsistent motor protection by integrating a capacitor trip device (SPVR) and a charge-before-close mechanism. It carries UL Listed certification and supports rugged NEMA configurations for indoor and outdoor installations (NEMA 1, 3R, 4, 12). By leveraging a 480 V system with a 120 V control voltage and a 3000 A rating, it delivers reliable protection while maintaining concise wiring and straightforward maintenance. This combination translates to improved uptime, simplified procurement, and scalable protection across varied plant layouts.
Product Information
Extended Description
CB3033B120480RCT Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),,3000A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480RCT
UPC
782116951758
Product Length/Depth
22.5 in
Product Height
32 in
Product Width
40 in
Product Weight
430 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
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), with control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B120480RCT
Feature: High-current, three-pole design supports 3000A at 480V, with 120V control and fusible protection. Business impact: Enables reliable protection for large motors and feeders while reducing wiring complexity in power distribution units. Application: Suitable for manufacturing lines, presses, and heavy conveyors that demand robust, code-compliant protection. Feature: Single-phase relay with capacitor trip device (SPVR) and control power transformer. Business impact: Reduces nuisance trips and provides coordinated, safe motor starts, improving uptime and reducing maintenance calls. Application: Critical load protection in panelboards and machine centers where predictable trip timing matters. Feature: Bottom feed configuration with bottom fuse setup and no ground fault (optional ground fault relay available). Business impact: Simplifies wiring access in compact enclosures, speeds installation, and allows future safety upgrades without major rewiring. Application: Retrofit projects and new builds in compact control spaces. Feature: NEMA-compatible enclosure readiness (NEMA 1, 3R, 4, 12) and UL Listed certification. Business impact: Enables both indoor and outdoor installations with proven safety and environmental tolerance, lowering compliance risk. Application: Outdoor feeders, washdown areas, and protected industrial environments. Feature: Optional auxiliary contacts and Kirk provisions to tailor protection and signaling. Business impact: Expands control options and monitoring capabilities without adding separate cabinets. Application: Systems requiring remote signaling, interlocks, or expanded fault reporting.
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FAQs
The CB3033B120480RCT is engineered for high-current single-phase protection in industrial control panels and power distribution gear. It handles 480 V systems with up to 3000 A, controlled by 120 V logic, with bottom feed and fusible protection. It’s compatible with NEMA 1, 3R, 4, and 12 enclosures for indoor and outdoor installations in manufacturing, processing, and material handling environments.
The SPVR capacitor trip device provides a controlled, rapid trip after a capacitor-sensed event, reducing nuisance trips and improving protection reliability. It coordinates with the control power transformer and bottom-feed configuration to ensure dependable motor-start protection and safe shutdown for critical loads across varied plant lines.
Electrical ratings include a 3000 A amperage rating, 480 V system voltage and 480 V maximum, with 120 V control. The unit is UL Listed and supports NEMA 1, 3R, 4, and 12 enclosures, enabling safe indoor and outdoor installations when installed in appropriate enclosures and protected environments.
The device weighs about 430 lb and has a footprint of 22.5 in by 32 in by 40 in, so plan for proper lifting equipment and mounting space. Bottom feed wiring simplifies top-space constraints, and optional features such as ground fault relay or auxiliary contacts can extend protection without extra cabinets or retrofits.
Eaton provides a one-year warranty from installation or 18 months from shipment, whichever occurs first. The product is UL Listed, with catalog notes for optional features like ground fault relay, blown fuse detection, auxiliary provisions, and Kirk provisions to tailor protection to your exact application.