Eaton CB1633T120480KRARCT Pringle bolted pressure contact switch - UL Listed
Part Number: CB1633T120480KRARCT
Quick Summary
The Eaton pringle bolted pressure contact switch is a high-current protection device designed for industrial switchgear and power distribution panels. It delivers reliable performance in demanding environments, helping engineers avoid nuisance trips and costly downtime in 480 V electrical systems up to 1600 A. UL Listed certification supports safety and regulatory compliance, while NEMA ratings indicate suitability for enclosure environments such as NEMA 1, 3R, 4, and 12. This solution couples robust protection with scalable installation options, aligning with Eaton’s specifications to streamline procurement and maintenance while delivering lifecycle cost advantages for industrial facilities.
Product Information
Extended Description
CB1633T120480KRARCT Eaton: Eaton pringle bolted pressure contact switch,Interlock, single-phase relay with capacitor trip device (SPVR), BFD with three off lights (trips switch),,1600A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480KRARCT
UPC
782116956838
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
Interlock, single-phase voltage relay with capacitor trip device (SPVR), BFD with three normally off lights (trips switch), 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 - CB1633T120480KRARCT
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: Interlock and capacitor trip device (SPVR) provide a controlled charge-before-close sequence, reducing transient faults and improving system reliability in motor control centers and large switchgear. Benefit: fewer unplanned outages and safer step-change protection during ABB, Siemens, or Eaton back-to-back protection schemes. Application: high-current, three-pole, 480 V circuits where precise coordination is critical. Feature → Business Impact → Application: Top feed and fusible protection simplify wiring and fuse coordination at the point of entry, enabling cleaner cabinet design and faster serviceability. Benefit: reduced installation time and easier field troubleshooting in new builds or retrofit projects. Application: industrial plants upgrading protection schemes with 1600 A capacity. Feature → Business Impact → Application: Optional Ground Fault Relay, auxiliary contacts, and Kirk provisions extend diagnostic and control capabilities. Benefit: enhanced fault detection, improved control topology, and easier integration with building management systems. Application: facilities requiring enhanced safety interlocks and remote signaling. Feature → Business Impact → Application: UL Listed compliance and 25-000 warranty policy provide assurance of long-term support and standard terms. Benefit: minimized risk in procurement, predictable maintenance planning, and strong vendor support for critical infrastructure. Application: OEM panels, utility substations, and process industries seeking reliable protection with clear service expectations.
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FAQs
CB1633T120480KRARCT supports a top feed, three-pole, three-wire configuration with fusible protection for 480 V systems up to 1600 A. Optional features include Ground Fault Relay, auxiliary contacts, and Kirk provisions, enabling tailored protection and control architectures within Eaton or compatible switchgear designs.
The capacitor trip device (SPVR) provides a charge-before-close mechanism that improves coordination and reduces nuisance trips. This results in safer operation and more stable protection during startup and transient events in large motor and power distribution circuits.
Yes, the CB1633T120480KRARCT is UL Listed, signaling compliance with recognized safety standards. It is designed for environments compatible with NEMA ratings including NEMA 1, 3R, 4, and 12, making it suitable for various industrial enclosures and outdoor or harsh indoor settings when paired with appropriate housing.
The unit is designed around a 16 in length/depth, 28 in height, and 24 in width footprint, with a nominal weight of 180 lb. This sizing informs panel cutouts, mounting space, and service access in retrofit and new-build projects.
The product carries Eaton’s Selling Policy 25-000 warranty, offering one year from installation or eighteen months from shipment, whichever occurs first. This provides a clear post-sale support window and aligns with standard industrial equipment service expectations.