Eaton CB1633B120480GAX pressure contact switch UL Listed
Part Number: CB1633B120480GAX
Quick Summary
CB1633B120480GAX is a high-capacity electrical trip switch designed for protecting large feeders in industrial power distributions. In fast-paced plants, nuisance trips or mismatched control voltages can trigger costly downtime. UL Listed certification and rugged NEMA-rated enclosures support safety compliance and reliable operation in both indoor and outdoor environments. The unit delivers 480V system compatibility with a 1600A protection level and a 120V control circuit, enabling straightforward integration with existing panels. With its bottom-feed configuration and fusible protection, it offers installation flexibility, reduced wiring complexity, and a clear path to long-term total cost of ownership savings for OEMs, integrators, and maintenance teams.
Product Information
Extended Description
CB1633B120480GAX Eaton: Eaton pringle bolted pressure contact switch,BFD with no lights (trips switch),1600A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480GAX
UPC
782116958610
Product Length/Depth
16 in
Product Height
32 in
Product Width
24 in
Product Weight
200 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
1600A
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 - CB1633B120480GAX
High-current protection with a 1600A amperage rating minimizes fault impact on feeders, extending equipment life and reducing replacement costs in manufacturing lines and data centers. The 480V system voltage paired with a 120V control circuit simplifies integration with existing control hardware, lowering engineering time during panel upgrades. Bottom-feed, three-pole, fusible configuration provides installation flexibility in tight switchgear spaces while maintaining rigorous fault protection and coordination across distribution networks. Ground fault with control transformer enhances safety and rapid fault isolation, with optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions available to tailor protection schemes. Rugged NEMA 1, 3R, 4, 12 enclosures and UL Listed certification support compliant operation in diverse environments, indoors or outdoors. Optional features and field-proven Eaton accessories simplify expansion and future-proofing, improving maintenance planning and lifecycle cost of ownership.
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FAQs
This unit is designed for 480V feeders with 1600A capacity and a bottom-feed configuration. Confirm enclosure compatibility with NEMA ratings 1, 3R, 4, and 12, ensure the mounting footprint matches the 16x24x32 in housing, and verify wiring for a three-pole, three-wire circuit. Consider fusible protection and any optional ground fault features to optimize selective coordination and maintenance planning.
The switch provides a 1600A amperage rating, 480V system voltage, and a 120V control voltage. It employs fusible protection and is configured as three-pole with three wires. Ground fault protection with a transformer is included, with optional ground fault relay and auxiliary contacts available to tailor coordination and monitoring to your protection scheme.
Yes. UL Listed qualification along with NEMA ratings 1, 3R, 4, and 12 support versatile use in indoor and outdoor or damp environments when installed in an appropriate enclosure. Ensure site conditions align with enclosure ratings and follow Eaton installation guidelines for best performance and protection.
Yes. Catalog notes list optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These options enhance fault detection, selective protection, and monitoring, enabling easier integration with plant protection schemes and improved uptime. Availability depends on configuration and enclosure space.
With a rugged design and fusible protection, the CB1633B120480GAX reduces unexpected outages and maintenance trips, contributing to higher line availability. UL Listed certification simplifies compliance and procurement, while the 200 lb form factor and bottom-feed design streamline installation in retrofit projects and new builds, lowering total project risk and long-term operating costs.