Eaton CB3033B120480GAX Pringle bolted pressure contact switch - UL Listed
Part Number: CB3033B120480GAX
Quick Summary
Eaton CB3033B120480GAX pringle bolted pressure contact switch protects industrial power systems from faults in heavy machinery. Maintenance engineers struggle with nuisance trips and undetected ground faults that disrupt production. UL Listed certification supports safety and regulatory compliance, while compatibility with NEMA enclosures (1, 3R, 4, 12) ensures reliable operation in harsh environments. Designed for bottom-feed wiring and a 120 V control circuit in 480 V systems, it streamlines panel design and reduces wiring complexity. Together with fusible protection and a three-pole, three-wire configuration, this switch enhances uptime, simplifies maintenance, and protects critical loads.
Product Information
Extended Description
CB3033B120480GAX Eaton: Eaton pringle bolted pressure contact switch,BFD with no lights (trips switch),3000A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480GAX
UPC
782116899265
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
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 no lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B120480GAX
High amperage protection at 3000A provides reliable interruption for large feeders and motor loads, reducing arc flash exposure and equipment damage. This translates to measurable uptime gains in manufacturing lines that run near capacity. Co coordinated voltage and control: a 120 V control circuit paired with a 480 V system voltage enables precise protection coordination with existing switchgear. The three‑pole design ensures consistent three‑phase interruption across all phases, improving fault clearing times. Bottom feed configuration and fusible protection simplify installation and outage planning. The bottom‑feed arrangement reduces wiring complexity in crowded panels, while fusible protection helps meet short‑circuit ratings and code expectations. Ground fault protection with an integrated transformer enhances safety by detecting leakage currents before faults escalate. Optional Ground Fault Relay, auxiliary contacts, and Kirk provisions provide flexible integration with control systems and alarms. Rugged construction and enclosure compatibility: UL Listed and NEMA ratings offer durable operation in industrial environments. The robust 430 lb unit supports long service life and straightforward maintenance planning. For installers, the CB3033B120480GAX is compatible with existing Eaton specification sheets and panel designs; reference the catalog notes and data sheets for install steps.
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FAQs
CB3033B120480GAX is designed for bottom-feed wiring and 3‑pole operation, simplifying panel layouts and wiring diagrams. It fits typical industrial panels that support 480V systems and 120V control circuits, and the 22.5 in depth, 32 in height, and 40 in width guidance helps ensure adequate clearance. When wiring, plan for the fusible configuration and space for optional accessories like ground fault relays.
The device offers a 3000A amperage rating with a 480V system voltage and a 120V control circuit, enabling precise protection coordination with existing switchgear. It is fusible and supports NEMA 1, 3R, 4, and 12 enclosures, which broadens its applicability in both indoor and harsh environments while maintaining reliable fault interruption.
Yes, the switch is compatible with NEMA ratings 1, 3R, 4, and 12, indicating solid suitability for a range of indoor and semi-exposed industrial settings. UL Listed certification further supports safety compliance. For outdoor exposure, ensure enclosure integrity and proper weatherproofing per site conditions and applicable codes.
The product carries UL Listed certification and supports optional features described in catalog notes, including Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These options enable tailored protection schemes, enhanced fault detection, and easier integration with plant control systems and alarms.
The CB3033B120480GAX design emphasizes robust, long‑life performance with three‑pole protection and bottom-feed wiring that reduces wiring complexity and downtime during maintenance. By minimizing nuisance trips and enabling precise fault detection, it lowers unplanned outages, extends motor life, and reduces maintenance labor costs over the life of the installation.