Eaton CB1633B120480GA Pressure contact switch - UL Listed
Part Number: CB1633B120480GA
Quick Summary
Eaton CB1633B120480GA pressure contact switch provides reliable protection for 480V power systems used in motor control centers and industrial feeders. Engineers often struggle with nuisance trips and downtime when protection schemes lack effective ground fault or single‑phase options. UL Listed certification supports safety compliance, and enclosure ratings such as NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 offer install flexibility across harsh environments. Aligned with Eaton’s portfolio of low‑voltage switching devices, this product delivers scalable protection while simplifying wiring and maintenance, helping facilities meet uptime targets and reduce long‑term operating costs.
Product Information
Extended Description
CB1633B120480GA Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (does not trip),1600A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480GA
UPC
782116958573
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 three normally on lights (does not trip)
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 - CB1633B120480GA
Feature: High-current protection with 1600A amperage rating and 480V system voltage. Impact: Supports demanding motors and feeders with robust protection, reducing the risk of catastrophic failure and unplanned downtime. Application: Motor control centers and large switchgear where reliability and fast fault isolation matter. Feature: Control voltage of 120V and fusible protection. Impact: Simplifies coordination with plant controls and enables selective protection to balance safety with cost. Application: Panel boards and distribution systems requiring selective fuse protection. Feature: Bottom feed configuration and ground fault protection options. Impact: Eases installation, improves fault detection, and enhances personnel safety in rugged environments. Application: Industrial facilities with limited space and strict ground-fault requirements. Feature: 3-pole, 3-wire construction with three-phase compatibility. Impact: Improves reliability and reduces wiring complexity in 3‑phase networks. Application: Three‑phase power distribution, large-capacity drives, and line protection. Feature: Optional auxiliary contacts, Kirk provisions, and auxiliary relay provisions. Impact: Facilitates PLC integration and remote monitoring, boosting control system visibility. Application: Modernized protection schemes and smart maintenance workflows. Feature: NEMA ratings 1, 3R, 4, 12 and UL listing. Impact: Ensures environmental compatibility and compliance across plant locations. Application: Harsh or varying environments, from indoors to outdoor enclosures.
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FAQs
When installing CB1633B120480GA in a bottom-feed enclosure, ensure adequate space for wiring and the control power transformer. The three-pole, three-wire design aligns with standard 480V feeders, and the bottom-feed fuse configuration simplifies wiring routes while maintaining clearance for grounding and interlocks. Utilize the optional auxiliary contacts and ground fault provisions to align with your plant protection scheme and PLC interfaces.
CB1633B120480GA is rated for 1600A and 480V system voltage with a 120V control circuit. It provides fusible protection, three-pole operation, and bottom-feed configuration. The device supports NEMA 1, 3R, 4, and 12 enclosures and offers optional ground fault relay, blown fuse detection, single-phase protection, and auxiliary provisions for expanded protection schemes.
Yes. The CB1633B120480GA is a three-pole, three-wire bolted pressure contact switch designed for 480V systems, making it suitable for 3‑phase power distribution. Its fusible protection and bottom-feed configuration support reliable fault isolation in motor-driven and distribution applications, while NEMA ratings ensure compatibility with a variety of enclosure environments.
CB1633B120480GA carries UL Listed certification, reflecting compliance with safety standards for electrical protection devices. It also aligns with typical enclosure ratings (NEMA 1, 3R, 4, 12) to accommodate diverse installation environments. Optional features like ground fault protection and blown fuse detection further support regulatory and safety requirements in industrial facilities.
The CB1633B120480GA reduces downtime through reliable fault isolation and optional ground fault/blown fuse detection, supporting quicker fault diagnosis. Its robust amperage rating and 480V compatibility minimize replacement frequency for high-demand loads, while integration options with auxiliary contacts and Kirk provisions simplify maintenance and monitoring, delivering measurable total cost of ownership benefits over the product lifecycle.