Eaton CB1633T120480KG5 bolted pressure switch - UL
Part Number: CB1633T120480KG5
Quick Summary
Eaton CB1633T120480KG5 pringle bolted pressure contact switch provides high-capacity safety interlock for industrial switchgear assemblies. Engineers frequently wrestle with unreliable fault detection, fuse coordination, and ground-fault events that interrupt critical processes. UL Listed with NEMA ratings 1, 3R, 4, and 12, it meets harsh-environment requirements across demanding plant floors. Top-feed, three-pole design supports 1600 A at 120 V control and 480 V system voltage, delivering robust protection and fast isolation. This combination simplifies installation, reduces downtime, minimizes maintenance costs, and aligns with standard switchgear architectures for easier procurement and service.
Product Information
Extended Description
CB1633T120480KG5 Eaton: Eaton pringle bolted pressure contact switch,Interlock,1600A,1NO-1NC,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480KG5
UPC
782116956791
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.
Contact configuration
1 NO-1 NC
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633T120480KG5
Feature — 1600 A amperage rating with fusible protection. Business Impact — Enables safe switching of heavy loads and short-circuit isolation, reducing arcing, equipment damage, and downtime. Application — Ideal for motor control centers and high-current feeders in manufacturing facilities. Feature — 1NO-1NC, three-pole contact configuration with interlock. Business Impact — Delivers flexible control and prevents improper energization, enhancing operator safety and process reliability. Application — Suitable for safety interlocks in panel doors and access points where strict sequencing is required. Feature — Ground fault protection with control power transformer option. Business Impact — Improves personnel safety and enables prompt fault detection, supporting risk reduction in critical circuits. Application — Protective schemes in safety-critical control circuits and distributed protection layouts. Feature — Top feed fuse configuration. Business Impact — Simplifies wiring topology and reduces installation time, enabling cleaner panel layouts. Application — Front-entry or top-entry switchgear designs where fast, organized wiring is needed. Feature — NEMA rated and UL Listed construction (1, 3R, 4, 12). Business Impact — Ensures reliable operation in harsh environments, supports compliance, and streamlines procurement. Application — Outdoor installations, damp environments, and rugged industrial settings requiring robust protection. Feature — Optional accessories and auxiliary provisions. Business Impact — Enables tailored protection schemes (ground-fault relay, blown fuse detection, single-phase protection, auxiliary contacts) without custom hardware. Application — Custom safety configurations for specific industry risk assessments and maintenance practices.
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FAQs
CB1633T120480KG5 supports a top-feed wiring arrangement and a three-pole, 1NO-1NC contact configuration, simplifying mounting in standard switchgear. Plan for a 16" L x 24" W x 28" H footprint and approximately 180 lb weight. Ensure appropriate enclosure, secure anchoring, and cable entry clearance; consider optional ground fault relay or auxiliary contacts to match your protection scheme.
This model delivers a 1600 A amperage rating with fusible protection and a 120 V control circuit, enabling rapid isolation during faults. The interlock and charge-before-close mechanism minimize misoperation, while ground-fault options and auxiliary provisions support selective coordination and enhanced safety in motor control centers and high-current feeders.
Yes. The unit is UL Listed and rated for multiple NEMA environments, including 3R, which supports outdoor or damp locations, along with 1, 4, and 12 for broader indoor applications. When used with appropriate enclosures, it maintains performance in rugged industrial settings and challenging plant floors.
CB1633T120480KG5 carries UL Listed certification and supports NEMA ratings 1, 3R, 4, 12, aligning with common safety and reliability standards for industrial control devices. Optional features like ground-fault relay, blown-fuse detection, and auxiliary contacts help tailor compliance for specific regulatory requirements and risk assessments.
While initial costs reflect its heavy-duty construction, benefits include reduced downtime due to reliable interlock operation and robust fault protection. The device’s compatibility with standard Eaton devices simplifies spares, procurement, and maintenance planning, contributing to lower total cost of ownership over a typical industrial lifecycle.