Eaton CB3033T120480GAO Pringle bolted switch - UL Listed
Part Number: CB3033T120480GAO
Quick Summary
The Eaton CB3033T120480GAO pringle bolted pressure contact switch delivers high-capacity protection for industrial motor circuits. Many engineers struggle with unreliable trip mechanisms and downtime when switching large loads. UL Listed safety certification supports compliance, while the unit’s NEMA 1, 3R, 4, 12 ratings enable rugged installations with optional ground fault protection and fuse detection. Designed for seamless integration within Eaton switching devices and high-amperage distribution schemes, it reduces installation time and improves overall system reliability. Its three-pole, top-feed configuration supports reliable control power and safe energization in demanding industrial spaces. This combination helps maintenance teams meet uptime targets and satisfy audit requirements.
Product Information
Extended Description
CB3033T120480GAO Eaton: Eaton pringle bolted pressure contact switch,BFD with three off lights (does not trip),3000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033T120480GAO
UPC
782116951093
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
BFD with 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 - CB3033T120480GAO
High amperage rating and voltage capacity deliver robust protection for large motor loads. The CB3033T120480GAO supports up to 3000A with a 480V system voltage, enabling you to protect high-current feeders without undersizing switchgear, which reduces equipment wear and downtime in metal fabrication and heavy manufacturing. This translates to lower total cost of ownership as fewer replacements are needed and maintenance intervals can be extended. Three-pole, three-wire topology with top feed simplifies wiring and reduces installation errors, accelerating panel builds and commissioning in new sites or retrofits. The electronic trip with charge-before-close enhances safety by ensuring the switch closes only after a controlled pre-charge, minimizing arcing and contact wear while improving cycle life for demanding duty cycles. Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, and auxiliary contact provisions provide enhanced protection and monitoring, improving reliability, safety, and regulatory compliance in critical power paths. With UL Listed certification and broad NEMA compatibility (1, 3R, 4, 12), this unit performs reliably in harsh environments such as outdoor-rated or washdown areas, while maintaining compatibility with Kirk provisions and other accessory options to tailor protection schemes. The physical footprint—22.5 in depth, 28 in height, and 40 in width with a 390 lb weight—reflects a switchgear-grade solution designed for robust, serviceable installations in main distribution panels, substations, or large motor control centers. The 25-000 warranty policy provides a clear service commitment, ensuring support during the initial installation and after-market maintenance, which supports predictable budgeting and uptime. In practice, the CB3033T120480GAO integrates smoothly with Eaton switching devices and high-current distribution schemes, reducing installation time and enabling rapid, reliable protection across critical lines.
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FAQs
Install the CB3033T120480GAO as a three-pole, three-wire device with top-feed configuration. Ensure control power is wired to the 120 V control circuit and connect to the corresponding feeder legs for 480 V systems. Use proper torque specifications and verify alignment with available auxiliary contacts or kirk provisions. Follow the manufacturer’s installation instructions and observe lockout/tagout procedures to ensure safe commissioning.
The unit is rated for 3000 A at 480 V system voltage, with a 120 V control voltage. It is a three-pole, three-wire, fusible switch with top feed, designed for NEMA 1, 3R, 4, and 12 enclosures. It supports ground fault protection in configurations where a control power transformer is employed, and it includes options for ground fault relay and fuse detection.
Yes. Optional features include Ground Fault Relay and Blown Fuse Detection, along with Single Phase Protection and Auxiliary Contact Provisions. These options help safeguard personnel and equipment, improve fault diagnosis, and support compliance with industrial safety standards in complex distribution schemes.
The CB3033T120480GAO carries UL Listing and supports NEMA ratings of 1, 3R, 4, and 12, making it suitable for a range of indoor and demanding environments, including dusty, humid, and washdown areas. Its top-feed, fusible design is ideal for rugged switchgear and large-panel installations with space for a 22.5 in depth, 28 in height, and 40 in width footprint.
The switch’s high current rating and robust enclosure reduce frequent component replacements, improving uptime for critical lines. The integrated safety features and optional protection options lower the risk of costly outages, while the 1 year warranty from installation (or 18 months from shipment) provides post-purchase support and budget predictability for maintenance planning.