Eaton CB3033B120480A9 Pringle bolted pressure switch - UL
Part Number: CB3033B120480A9
Quick Summary
Eaton pringle bolted pressure contact switch enables high-current protection for large motor circuits in industrial panels. Maintenance downtime and protection miscoordination are common pain points in demanding equipment environments, where reliable switching and quick fault isolation matter. This device carries UL Listed certification and robust enclosure compatibility, with NEMA ratings including 1, 3R, 4, and 12, supporting harsh factory floors. Its fusible protection and bottom-feed configuration simplify installation while reducing wiring errors. Optional ground fault relay, blown fuse detection, and auxiliary contact provisions provide flexible protection schemes without bogging down the design. By aligning this switch with Eaton Switching Devices catalogs and your preventive maintenance plan, you can lower lifecycle costs and improve overall panel reliability.
Product Information
Extended Description
CB3033B120480A9 Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (trips switch),3000A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480A9
UPC
782116951796
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
BFD with three normally on lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB3033B120480A9
Feature: 3000A amperage rating. Business Impact: protects large motor loads and high-inrush applications, reducing the risk of catastrophic faults. Application: ideal for motor control centers and main switchgear where peak demand spikes occur. Feature: 480V system voltage with 120V control voltage. Business Impact: simplifies integration with standard control circuits and field wiring, lowering installation complexity. Application: suitable for industrial facilities with centralized power distribution and control logic. Feature: Bottom feed and bottom fuse configuration. Business Impact: streamlines wiring, enhances safety during maintenance, and supports compact panel layouts. Application: panel design that requires efficient cable routing and accessible servicing. Feature: Three-pole, three-wire design. Business Impact: provides balanced three-phase protection and consistent fault isolation across phases. Application: heavy-duty conveyors, presses, and mixers with demanding loads. Feature: Fusible protection with UL Listed certification. Business Impact: ensures proven overcurrent protection meets compliance while enabling predictable replacement intervals. Application: adheres to safety standards for compliant installations. Feature: Optional Ground Fault Relay, Blown Fuse Detection, and Auxiliary Contacts. Business Impact: enables flexible protection schemes, rapid fault diagnosis, and scalable control options. Application: retrofit-ready protection enhancements for evolving process lines. Feature: NEMA-rated enclosure compatibility (NEMA 1, 3R, 4, 12). Business Impact: supports rugged environments, reducing environmental risk and improving uptime. Application: harsh factory floors and outdoor-ready installations. This combination of features delivers measurable outcomes in reliability, maintenance cost reduction, and faster fault resolution across industrial automation systems.
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FAQs
For new panel builds, plan bottom-feed wiring to match the device’s bottom feed configuration, ensure enclosure clearance for a three-pole, 480V system, and verify UL Listed compliance. Consider space for auxiliary contacts and optional ground fault relay wiring. Use the Eaton catalog guidelines to align mounting dimensions with standard switchgear footprints and panel rail spacing.
Key specs include a 3000A amperage rating, 480V system voltage and 120V control voltage, three-pole/three-wire configuration, fusible protection, and bottom feed. The device is UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures, making it suitable for demanding industrial environments.
Yes. The catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, and Auxiliary Contact Provisions are available, enabling retrofit and expanded protection schemes without a full panel redesign.
This switch is UL Listed for safety compliance and is designed for use in NEMA-rated enclosures (NEMA 1, 3R, 4, 12), supporting rugged industrial applications and consistent regulatory alignment with standard low-voltage power distribution practices.
The fusible protection and robust enclosure ratings reduce unscheduled downtime by improving fault isolation and protection reliability. Installation efficiency from bottom-feed wiring lowers labor costs, while optional protection options help tailor maintenance plans to actual operating conditions, delivering long-term cost savings and improved panel uptime.