Eaton CB3033T120480KG Pringle pressure switch - UL Listed
Part Number: CB3033T120480KG
Quick Summary
The Eaton CB3033T120480KG bolted pressure contact switch provides interlock protection for high-current electrical switchgear. Many facilities struggle with reliable fault protection, fuse detection, and proper trip coordination in large top-fed, three-pole assemblies. UL Listed safety certification supports regulatory compliance, while the NEMA ratings—1, 3R, 4, and 12—guide enclosure choices and environmental compatibility. This solution integrates with 480 V system voltages and 120 V control power, reducing wiring complexity while improving uptime, safety, and total cost of ownership. It’s a robust choice for engineers seeking dependable protection in demanding industrial environments.
Product Information
Extended Description
CB3033T120480KG Eaton: Eaton pringle bolted pressure contact switch,Interlock,3000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480KG
UPC
782116899449
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
Interlock
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033T120480KG
Feature: Interlock and charge-before-close mechanism ensures safer, controlled switching. Business Impact: Reduces risk of arcing and operator exposure while preventing premature or unexpected contacts. Application: Ideal for automated safety interlocks in large switchgear. Feature: High amperage rating of 3000A with 480 V system voltage. Business Impact: Supports heavy motor loads and rapid fault clearing without sacrificing stability. Application: Suitable for feeder panels and motor control centers in manufacturing plants. Feature: Top feed fuse configuration with fusible protection. Business Impact: Streamlines wiring, simplifies protection coordination, and speeds installation. Application: Common in retrofit projects and new builds requiring reliable protection at the source. Feature: Ground fault with control power transformer. Business Impact: Enhances personnel safety and system fault detection, reducing downtime from ground faults. Application: Critical in environments with exposed conductors or shared control circuits. Feature: Broad environmental compatibility with NEMA ratings 1, 3R, 4, 12 and UL Listed certification. Business Impact: Ensures regulatory compliance and versatile deployment across indoor and harsh environments. Application: Suitable for diverse industrial spaces from clean rooms to outdoors with proper enclosures. Feature: Optional features including Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. Business Impact: Allows customization to meet specific protection schemes and maintenance workflows, lowering lifecycle costs. Application: Systems requiring tailored safety features and silent operation in critical processes.
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FAQs
CB3033T120480KG uses a top-feed, three-pole configuration with three wires and a 120 V control circuit, designed for 480 V systems. It fits standard industrial switchgear footprints that support bolted pressure contact switches, with optional features available to match Kirk provisions and auxiliary contacts where needed.
Key specs include a 3000A amperage rating, 480 V system voltage, 480 V voltage max, and 120 V control voltage. It is fusible with an electrical trip and charge-before-close mechanism, and is UL Listed with NEMA ratings 1, 3R, 4, and 12 for enclosure compatibility.
Best suited for large, high-current switchgear, motor control centers, and feeder panels where interlock protection and reliable fault detection are critical. Its top-feed design and ground fault protection options make it ideal for environments requiring robust safety and quick fault response.
This model is UL Listed and supports multiple NEMA enclosure ratings (1, 3R, 4, 12), enabling use across a range of environments from clean to moderately harsh. Optional safety features can further align the unit with site-specific regulatory requirements.
Eaton provides a warranty policy of one year from installation or eighteen months from shipment, whichever occurs first. Availability of optional features like ground fault relay and auxiliary provisions can help reduce downtime and tailor maintenance schedules to your system’s needs.