Eaton CB3033B120480KAO Bolted Pressure Contact Switch - UL Listed
Part Number: CB3033B120480KAO
Quick Summary
Eaton pringle bolted pressure contact switch provides heavy-duty interlock protection for industrial switchgear and motor control centers, enabling safe, controlled energization in demanding environments. Operators often face unreliable trips and nuisance faults in high-current feeds, which leads to unplanned downtime and safety risks; this device is designed to improve reliability through a robust charge-before-close mechanism. This unit ships UL Listed and is compatible with broad NEMA enclosures (NEMA 1, 3R, 4, 12), ensuring predictable performance across indoor fixtures and rugged outdoor installations. With optional Ground Fault Relay and Blown Fuse Detection, plus Single Phase Protection, it provides enhanced protection without adding complex wiring, helping maintenance teams meet safety standards while controlling lifecycle costs.
Product Information
Extended Description
CB3033B120480KAO Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD witht three off lights (does not trip),3000A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480KAO
UPC
782116951550
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
Interlock, BFD witht three normally off lights (does not trip)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B120480KAO
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Three-pole bolted pressure contact switch with charge-before-close mechanism. Benefit: Reduces arc flash risk and ensures safe energization, minimizing operator exposure during startup. Application: Heavy-duty switchgear and motor control centers in manufacturing and processing facilities. The business impact is improved reliability and downtime reduction, supporting compliance with safety programs and reducing maintenance complexity. Feature: Bottom feed with fusible protection. Benefit: Simplifies wiring and enclosure layouts while keeping protection close to the source, lowering installation time and field labor costs. Application: Control panels and distribution boards in high-current installations that demand compact, bottom-fed protectors. Feature: Optional Ground Fault Relay and Blown Fuse Detection with Single Phase Protection. Benefit: Enhanced fault-detection capabilities decrease unexpected trips and facilitate quicker maintenance response, improving system availability and data-center reliability. Application: Critical power systems in data centers, utilities, and plant floors requiring proactive protection.
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FAQs
Yes. The CB3033B120480KAO uses a bottom feed configuration and a three-pole, fusible design that aligns with standard control panels. Its footprint accommodates typical enclosure dimensions, while its 480V system voltage and 120V control voltage support common industrial installations. For retrofit projects, verify mounting clearances and ensure compatible Kirk provisions or auxiliary contact provisions as needed.
Key specs include a 3000A amperage rating, 480V system voltage, 120V control voltage, fusible protection, and three-pole operation. Enclosure compatibility spans NEMA 1, 3R, 4, 12. It features a bottom feed configuration and a charge-before-close mechanism to enhance safety and reliability in high-current applications.
Absolutely. With a 3000A rating and fusible protection, this switch is designed for high-current switchgear and motor control centers. Its bolted pressure contact design, interlock features, and three-pole configuration make it well-suited for demanding manufacturing lines, processing facilities, and other heavy-duty environments requiring robust protection and dependable operation.
The CB3033B120480KAO is UL Listed, providing recognized safety certification for electrical equipment. It also carries broad NEMA ratings—1, 3R, 4, and 12—indicating enclosure and environmental compatibility for indoor and selected outdoor installations, which supports compliance with typical industrial safety and reliability standards.
Warranty terms follow Eaton Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. Support includes access to Eaton specification sheets, product catalogs, and the option to add features such as Ground Fault Relay or Blown Fuse Detection for enhanced protection and service continuity.