Eaton CB1633T120480R Pringle Bolted Switch - UL Listed
Part Number: CB1633T120480R
Quick Summary
Eaton CB1633T120480R bolted pressure contact switch is a reliable single‑phase protection device for industrial power panels and switchgear. Engineers often contend with nuisance trips, space constraints, and coordinating protection in compact control rooms. This model aligns with UL Listed requirements and supports robust enclosure compatibility with NEMA ratings 1, 3R, 4, and 12, helping to simplify compliance and installation. In practice, it delivers high-current capability, a capacitor trip device, and optional add-ons like ground fault or auxiliary contacts, enabling streamlined procurement and dependable low-voltage protection for OEMs and panel builders alike.
Product Information
Extended Description
CB1633T120480R Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),1600A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480R
UPC
782116957187
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
No ground fault
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
Single-phase voltage relay with capacitor trip device (SPVR)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633T120480R
Feature → Business Impact → Application: The CB1633T120480R provides a 1600A amperage rating and a 480V system voltage, enabling it to protect large feeders and switchgear without oversizing. This reduces panel footprint and energy losses while increasing protection reliability for critical loads in manufacturing lines and distribution centers. Feature → Business Impact → Application: The integrated single-phase relay with capacitor trip device (SPVR) minimizes nuisance trips during capacitor switching or transient events, improving uptime and reducing maintenance costs in motor control applications such as pumps and conveyors. Feature → Business Impact → Application: Top-feed fuse configuration and three-pole, three-wire architecture offer straightforward installation in panel racks with reduced wiring complexity, supporting faster commissioning in new builds and retrofits. Feature → Business Impact → Application: UL Listed certification and NEMA compatibility (1, 3R, 4, 12) provide confidence for compliance and enclosure selection, enabling safe use across indoor and outdoor environments. Feature → Business Impact → Application: Optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection options give modularity to circuits, lowering total cost of ownership by allowing future upgrades without replacing the core switch. Feature → Business Impact → Application: The device’s rugged construction, 16 in length, 28 in height, and 24 in width support reliable installation in space-constrained switchrooms while providing ample clearance for wiring and maintenance tasks, reducing downtime during service.
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FAQs
CB1633T120480R is designed for top-feed, three-pole, three-wire configurations with fusible protection. Its 1600A rating and 480V system voltage support large feeders, while UL Listed certification provides safety compliance. For installation, ensure compatible enclosure (NEMA 1, 3R, 4, 12) and consider optional ground fault relay or auxiliary contact provisions to match control needs.
The SPVR capacitor trip device provides charge-before-close protection for single-phase circuits, reducing nuisance trips during capacitor switching and transient events. This improves uptime and protects downstream equipment like motors and drives, making it a reliable choice for panel builders seeking stable protection without frequent faults.
Yes. The unit carries UL Listed certification and is compatible with NEMA 1, 3R, 4, and 12 enclosures, covering indoor and outdoor conditions. Its three-pole, top-feed design simplifies routing in compact spaces, while fusible protection adds another layer of circuit reliability in demanding industrial settings.
CB1633T120480R is UL Listed, ensuring recognized safety compliance for electrical protection devices. It also supports NEMA-rated enclosures (1, 3R, 4, 12), aiding in enclosure selection and installation in varied environments. Optional features like ground fault and auxiliary contact provisions extend its regulatory and functional readiness.
Key specifications include 1600A amperage rating, 120 V control voltage, and 480 V system voltage with a three-pole, three-wire configuration. It offers fusible protection and a capacitor trip device (SPVR), with optional ground fault relay and blown fuse detection. These features support robust panel protection and streamlined maintenance in industrial applications.