Eaton CB3033B120480K Bolted Pressure Switch UL Listed
Part Number: CB3033B120480K
Quick Summary
The Eaton CB3033B120480K Bolted Pressure Switch protects heavy electrical panels by interlocking and guarding high-current circuits. Engineers often wrestle with reliable control and fuse coordination in space-constrained switchgear. UL Listed protection, along with compatible NEMA ratings (1, 3R, 4, 12), supports safe operation in harsh environments. Designed for motor control centers and distribution panels, it delivers rugged performance with 3-pole bottom-feed configuration and modular protection options, delivering long-term reliability and reduced maintenance. This combination translates to lower lifecycle costs and faster project commissioning.
Product Information
Extended Description
CB3033B120480K Eaton: Eaton pringle bolted pressure contact switch,Interlock,3000A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480K
UPC
782116899296
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
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 - CB3033B120480K
Feature → Business Impact → Application. The CB3033B120480K uses an interlock with a charge-before-close mechanism to ensure the circuit cannot re-energize unintentionally after maintenance. The result is enhanced operator safety, reduced risk of arcing, and improved compliance with lockout/tagout practices. This configuration is ideal for motor control centers and main distribution panels where safe energization sequencing matters. Feature: High amperage rating and system voltage. With a 3000A amperage rating and 480V system voltage, this switch handles large-duty switching within a single unit, simplifying panel design and reducing buswork. The result is lower installation costs, fewer splice points, and improved reliability in critical feeders. Feature: Bottom feed and fusible protection; optional ground fault relay. Bottom feed and fusible protection simplify wiring and maintenance, enabling straightforward retrofits in existing enclosures. Catalog notes indicate optional ground fault relay, blown fuse detection, single-phase protection, auxiliary contact provisions, and other enhancements that address specific protection schemes. Feature: NEMA ratings; UL Listed. UL Listed certification paired with NEMA 1, 3R, 4, and 12 ratings expands installation options across indoor and outdoor environments. Feature: Durable construction and warranty. Robust construction plus Eaton’s warranty support predictable lifecycle costs; with renewal options and policy coverage aligning with typical mission-critical facilities.
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FAQs
To install CB3033B120480K ensure proper bottom-feed orientation, connect the three conductors to the appropriate poles, and align control voltage with 120 V while supplying 480 V to the system. Use UL-listed fuses and confirm the interlock is functioning before energizing. The device is designed for motor control centers and distribution panels, supporting straightforward retrofits.
The switch provides a 3000 A amperage rating with a 480 V system voltage and 120 V control voltage. It is a three-pole, bottom-feed, fusible device compatible with NEMA 1, 3R, 4, and 12 enclosures, making it suitable for indoor/outdoor industrial switchgear, large feeders, and control panels in demanding environments.
Yes. Its three-pole, bottom-feed configuration with interlock and charge-before-close sequencing is tailored for motor control centers and large distribution panels, delivering safe energization, reliable protection, and streamlined installation in high-current applications.
The device is UL Listed and supports NEMA 1, 3R, 4, 12 ratings for broad environmental applicability. Catalog notes indicate optional features such as ground fault relay, blown fuse detection, single-phase protection, auxiliary contacts, and Kirk provisions to simplify compliance and monitoring in critical facilities.
Eaton provides a standard warranty policy of one year from date of installation or eighteen months from shipment, whichever occurs first. This, combined with robust construction and modular protection options, supports predictable lifecycle costs and faster commissioning in mission-critical facilities.