Eaton CB1633T120208GRAX Pringle bolted switch - UL Listed
Part Number: CB1633T120208GRAX
Quick Summary
Eaton pringle bolted pressure contact switch protects high-current industrial power circuits with fast capacitor-tripped protection. Engineers often wrestle with reliable single-phase protection, ground faults, and nuisance trips in critical equipment; this unit addresses those pain points with proven trip logic and robust construction. The device is UL Listed and designed for compatibility with NEMA-rated enclosures, supporting safe operation in demanding environments. With top-feed wiring and fusible protection, it enables streamlined commissioning, easier maintenance, and scalable protection strategies across switchgear and motor control centers. This combination delivers improved uptime, safer start-ups, and a clear path to compliant, dependable power distribution infrastructure.
Product Information
Extended Description
CB1633T120208GRAX Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),1600A,120V,Top feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120208GRAX
UPC
782116957125
Product Length/Depth
16 in
Product Height
28 in
Product Width
24 in
Product Weight
180 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
Top
Fuse configuration
Top 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
208 V
Voltage - max
208 V
Voltage rating
208 V
Special features
Single-phase voltage relay with capacitor trip device (SPVR), 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 - CB1633T120208GRAX
Feature → Business Impact → Application: The CB1633T120208GRAX uses a three-pole design capable of handling 1600A, delivering strong fault isolation and system protection for high-current industrial feeders. This translates to reduced downtime and improved equipment longevity in switchgear assemblies and motor control centers; suitable for 208V systems with a 120V control voltage, minimizing control-wiring complexity during installation. Feature → Business Impact → Application: Top-feed fusible configuration simplifies wiring in compact panels, speeding up installation and reducing field wiring errors for plant modernization and expansion projects. Feature → Business Impact → Application: Single-phase voltage relay with capacitor trip device (SPVR) provides precise, fast tripping under fault conditions, lowering nuisance trips and enhancing reliability in critical process lines. Feature → Business Impact → Application: Ground fault with control power transformer increases protection breadth, enabling safe operation of equipment with exposed feeders in industrial environments; ideal for heavy-duty switchgear guarding embedded protection features. Feature → Business Impact → Application: Optional Ground Fault Relay, Blown Fuse Detection, and auxiliary provisions offer modular protection expansion, reducing total cost of ownership while maintaining compliance and ease of maintenance in long-life installations.
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FAQs
CB1633T120208GRAX is designed for industrial switchgear, motor control centers, and panel boards that require high-current protection. Its top-feed configuration and fusible protection streamline wiring, while UL Listed safety certification supports compliance in facility upgrades and new builds. It supports environments calling for reliable three-pole protection at 208 V systems with a 120 V control circuit.
The single-phase capacitor trip device (SPVR) provides a fast, predictable trip response during abnormal voltage conditions, reducing nuisance trips and protecting downstream equipment. This improves process continuity and lowers maintenance costs by minimizing unplanned downtimes in critical lines such as conveyors, pumps, and fans.
Yes. The unit is rated for 208V system voltage and configured as a three-pole, three-wire device with a 1600A amperage rating. The control voltage is 120V, and the top-feed, fusible protection arrangement supports straightforward integration into standard low-voltage switchgear and MCC assemblies.
CB1633T120208GRAX is UL Listed for safety and designed to fit NEMA-rated enclosures including 1, 3R, 4, and 12. While CE and SIL certifications are not listed for this model, the UL safety rating and NEMA compatibility provide solid regulatory alignment for most industrial facilities and international installations seeking reliable protection devices.
The device reduces downtime through reliable tripping and ground fault protection, lowering repair costs and production losses. Its modular options, such as ground fault relay and auxiliary contacts, enable scalable protection without replacing major components. The overall result is lower total cost of ownership, easier maintenance scheduling, and safer, more compliant power distribution in the facility.