Eaton CB1633T120480KGAX Bolted pressure switch - UL Listed
Part Number: CB1633T120480KGAX
Quick Summary
The Eaton CB1633T120480KGAX bolted pressure contact switch is designed for high-current motor protection in industrial switchgear. Many panels struggle with unreliable interlocks, fault detection, and safe shutdown under peak loads. UL Listed certification underpins safety and regulatory compliance, while the unit’s NEMA ratings—1, 3R, 4, and 12—support diverse indoor and outdoor environments. This rugged solution aligns with top-feed, fusible protection requirements and provides a clear path to reliable uptime, streamlined maintenance, and reduced total cost of ownership in demanding applications such as large conveyors, fans, and pump systems.
Product Information
Extended Description
CB1633T120480KGAX Eaton: Eaton pringle bolted pressure contact switch,Interlock, BFD with no lights (trips switch),1600A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480KGAX
UPC
782116956777
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
480 V
Voltage - max
480 V
Voltage rating
480 V
Special features
Interlock, 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 - CB1633T120480KGAX
The 1600A amperage rating enables single-device protection for large motor loads, reducing panel complexity and fuse inventory, which translates into lower maintenance costs and faster downtime recovery in MCCs and heavy machinery installations. This capability supports efficient protection schemes for high-power drives and reduces the risk of nuisance trips in critical HVAC or processing equipment. The 480V system voltage with 120V control voltage standardizes control circuits across facilities, enabling compatibility with common motor starters and PLC interfaces while preserving robust fault isolation. Three-pole, top-feed design with fusible protection delivers predictable current paths and safe isolation, minimizing misoperation and enabling straightforward commissioning in enclosed switchgear and outdoor-rated panels. Interlock and BFD features provide rapid, trip-before-close protection, reducing exposure to arc flash and ensuring safer restart sequences in continuous operation lines. Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, and Auxiliary Contact Provisions enhance fault visibility and selective tripping, improving preventive maintenance planning and reducing unplanned outages. The UL Listed certification and broad NEMA ratings (1, 3R, 4, 12) support regulatory compliance, while the compact 16x24x28 in footprint and 180 lb weight simplify unit integration in reorganized or retrofitted panels. This solution is well-suited for high-current motor circuits in industrial automation, material handling, and process industries, delivering measurable uptime gains and a clearer path to ISO-aligned protective schemes.
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FAQs
When mounting in a top-feed configuration, ensure adequate clearance for wiring and service access, and align conductors with the device terminals to minimize impedance. Utilize the interlock and protective features as configured, and verify compatibility with existing Kirk provisions or auxiliary contacts if required. Plan for space to accommodate optional accessories like a Ground Fault Relay and Blown Fuse Detection for enhanced protection.
The 1600A rating supports single-device protection for large motors, reducing the need for multiple protective devices and simplifying protection schemes. This strengthens protection for high-current drives, minimizes wiring complexity, and lowers the risk of cascading faults. In practice, it improves startup reliability and short-circuit response while helping maintenance teams optimize spare parts inventories.
Yes, the CB1633T120480KGAX is UL Listed, highlighting compliance with safety standards for industrial equipment. It also supports multiple NEMA configurations, including 1, 3R, 4, and 12, enabling reliable operation in both indoor and rugged outdoor environments and simplifying code conformity across facilities.
Optional features include Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions. These options improve fault visibility, enable faster fault isolation, support predictive maintenance planning, and reduce unplanned downtime by catching single-phase or fuse-related issues before they escalate. They also offer flexibility to tailor protection to specific process risks.
The product carries Eaton's warranty of one year from installation or eighteen months from shipment, whichever occurs first. This policy supports lower long-term risk and can influence procurement ROI by reducing expected maintenance expenses. Proper documentation and adherence to installation guidelines help ensure warranty eligibility and maximize value over the system’s lifecycle.