Eaton CB3033B120208CT Bolted Pressure Switch - UL Listed
Part Number: CB3033B120208CT
Quick Summary
Eaton CB3033B120208CT bolted pressure contact switch protects large electrical systems in industrial power distribution. Many panels face nuisance trips and protection coordination gaps during start-up or fault events. UL Listed certification ensures safety compliance, while the unit’s NEMA ratings (1, 3R, 4, 12) support reliable performance across indoor and harsh environments. With a built-in control power transformer and fusible protection, installation is streamlined and wiring is simplified, reducing field labor and potential miswiring. Optional Ground Fault Relay, Blown Fuse Detection, Auxiliary Contact Provisions, and Kirk Provisions enable scalable protection schemes for production lines and critical loads. The result is improved safety, faster fault clearance, and lower maintenance costs in motor control centers and large switchgear assemblies.
Product Information
Extended Description
CB3033B120208CT Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,3000A,120V,Bottom feed,No ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120208CT
UPC
782116951888
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
208 V
Voltage - max
208 V
Voltage rating
208 V
Special features
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 - CB3033B120208CT
Feature → Business Impact → Application: The CB3033B120208CT uses a three-pole bolted pressure contact switch with an electrical trip and a charge-before-close mechanism, delivering fast, reliable interruption of heavy loads and reducing arc-flash exposure. This improves contact wear life and protection coordination, especially in high-current feeders in motor control centers and switchgear. Application: large industrial panels and MCCs where precise timing and safe fault clearance are critical. Feature → Business Impact → Application: Amperage rating of 3000A with 208V system voltage and 120V control voltage enables protection for substantial feeders without compromising control reliability. Application: manufacturing lines, data centers, and large equipment rooms requiring robust, high-current protection. Feature → Business Impact → Application: Bottom feed fuse configuration and bottom feed design simplify wiring routes, shorten installation time, and ease retrofits in confined or retrofitted cabinet spaces. Application: upgrading legacy switchgear in existing facilities. Feature → Business Impact → Application: Built-in control power transformer reduces components and wiring, simplifying panel layouts and improving start-up sequencing. Application: compact protection modules and integrated control schemes. Feature → Business Impact → Application: NEMA ratings of 1, 3R, 4, 12 and fusible protection provide enclosure compatibility for damp, dusty, or rugged environments. Application: industrial environments across manufacturing floors and outdoor-rated installations. Feature → Business Impact → Application: Optional Ground Fault Relay, Blown Fuse Detection, Auxiliary Contacts, and Kirk Provisions enable scalable protection architectures and PLC integration. Application: custom protection schemes for critical loads and easy expansion of safety features.
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FAQs
For installation, plan for a three-pole bolted pressure contact switch with bottom feed and fuse configuration. The unit dimensions (approximately 22.5 in depth, 32 in height, 40 in width) and weight (about 430 lb) require a stable mounting surface and cabinet clearance. Use the built-in control power transformer to minimize wiring runs, and consider optional features like Ground Fault Relay and Auxiliary Contacts to tailor protection to your panel layout.
The CB3033B120208CT is rated for 3000A with a 208V system voltage and a 120V control voltage, providing strong feeder protection for large loads. It uses fusible protection and a three-pole design with a charge-before-close mechanism, which improves fault clearance timing and reduces arcing when switching large motors or feeders in complex distribution schemes.
Yes. The unit’s NEMA ratings (1, 3R, 4, 12) indicate enclosure suitability across a range of indoor and rugged environments. Its bottom-feed configuration and robust construction simplify retrofits into existing panels and are compatible with standard switchgear practices. Always verify panel space and mounting provisions per Eaton datasheet for your exact enclosure model.
The CB3033B120208CT carries UL Listed certification, supporting safety and regulatory compliance for industrial electrical equipment. While CE or SIL certifications are not listed for this model, the UL listing, together with its NEMA-rated enclosure compatibility, helps ensure safe operation in typical U.S. industrial facilities and alignment with applicable electrical standards.
The switch's robust 3000A capacity and integrated control power transformer reduce wiring complexity and spare parts, lowering installation time and ongoing maintenance. Optional features such as Ground Fault Relay and Blown Fuse Detection enable proactive fault monitoring, reducing unplanned downtime and extending equipment life in critical production lines and large motor control centers.