Eaton CB1633B120480G Bolted pressure switch - UL Listed
Part Number: CB1633B120480G
Quick Summary
Eaton CB1633B120480G bolted pressure switch protects three-phase electrical systems in industrial power distributions. Engineers frequently battle nuisance tripping and ground-fault events in high-current feeders, leading to unplanned downtime and costly maintenance. This model delivers 1600 A, 480 V system voltage, and three-pole operation, ensuring robust performance in demanding environments such as heavy-duty manufacturing lines and processing plants. UL Listed with broad NEMA compatibility (NEMA 1, 3R, 4, 12) supports indoor and outdoor installations across diverse facilities, including harsh environments and protected indoor spaces. With an integrated control power transformer and fusible protection, it simplifies panel design, accelerates commissioning, and reduces overall lifecycle costs, enabling easier maintenance planning and greater system reliability.
Product Information
Extended Description
CB1633B120480G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,1600A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480G
UPC
782116898756
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
With control power transformer
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 - CB1633B120480G
High-current protection and 480 V support → Reduces overload risk on large motor feeders and minimizes outages → Application: industrial plants, data centers, and manufacturing lines requiring 1600 A at 480 V. Bottom feed and fusible protection → Simplifies wiring, enables selective protection, and minimizes arc-flash exposure during maintenance → Application: cabinet-level protection in switchgear assemblies. Ground fault with control power transformer → Improves fault detection in control circuits and enables reliable trip signaling for safety interlocks → Application: process lines with grounded distribution networks. Optional ground fault relay, blown fuse detection, single-phase protection → Enhances diagnostic visibility and reduces nuisance alarms, supporting predictive maintenance → Application: critical service feeds and safety circuits. Broad certification and enclosure compatibility → Ensures compliant installation across environments (UL Listed, NEMA 1/3R/4/12) and versatile mounting in indoor/outdoor switchgear and industrial panels. Compact footprint and serviceability → The 16 in length, 24 in width, and 32 in height footprint with a 200 lb weight facilitate mounting in standard enclosures while leaving space for wiring and auxiliary devices, improving install time and maintenance accessibility.
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FAQs
The CB1633B120480G is a bottom-feed, three-pole device designed for fusible protection and includes an integrated control power transformer. Install per Eaton wiring diagrams, ensure adequate clearance and ventilation, and mount in an appropriate enclosure. Connect incoming and outgoing feeders to the bottom terminals, verify grounding, and test trip functions with a safe, de-energized setup.
Rated for 1600 A and 480 V system voltage, with fusible protection and a three-wire, three-pole configuration. Features include ground fault with transformer, single-phase protection option, and availability of auxiliary contacts and Kirk provisions to expand control and signaling.
Yes. Its 1600 A rating, 480 V capability, and robust enclosure compatibility (NEMA 1/3R/4/12) suit data centers, manufacturing lines, and heavy motor feeders. Ground fault options and Blown Fuse Detection enhance reliability in mission-critical environments.
This model is UL Listed and compatible with multiple NEMA enclosure ratings (1, 3R, 4, 12), supporting safe installation across indoor and outdoor facilities while meeting common industrial standards for protection and reliability.
Integrated control power transformer reduces auxiliary components, while optional fault-detection features shorten recovery times after faults. The warranty follows Eaton policy 25-000 (one year from installation or 18 months from shipment), offering a predictable lifecycle cost and service support.