Eaton CB1633T1204805 Pringle bolted pressure contact switch - UL Listed
Part Number: CB1633T1204805
Quick Summary
Eaton pringle bolted pressure contact switch provides reliable high-current control for industrial power distributions and switchgear applications. Engineers often wrestle with arcing, slow make/break, and insufficient fault protection in heavy-load panels; this unit addresses those challenges with a robust, high-current design. UL Listed certification alongside broad NEMA protection ratings (NEMA 1, 3R, 4, 12) ensure safe operation in diverse environments. With a 1600A amperage rating and a 120V control voltage feeding a 480V system, it delivers dependable performance in demanding installations. The top-feed, fusible configuration simplifies wiring and maintenance while optional ground-fault or auxiliary accessories support enhanced protection and compliance. This combination provides measurable business value through reduced downtime and improved panel reliability.
Product Information
Extended Description
CB1633T1204805 Eaton: Eaton pringle bolted pressure contact switch,1600A,1NO-1NC,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T1204805
UPC
782116898800
Product Length/Depth
16 in
Product Height
28 in
Product Width
24 in
Product Weight
175 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
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Double Up on Safety
Double Up on Safety
Double Up on Safety
Double Up on Safety
Eaton Specification Sheet - CB1633T1204805
Feature: 1600A amperage rating → Business Impact: Enables reliable high-current switching for main feeders and motor control centers, reducing overload risk and improving energy management → Application: Large industrial switchgear and power distribution assemblies. Feature: 1 NO-1 NC, three-pole, three-wire configuration → Business Impact: Flexible control topology supports immediate signaling and coordinated protection, lowering wiring complexity and integration time → Application: Control panels and feeder circuits with top-feed design. Feature: Top feed and fuse configuration → Business Impact: Streamlined installation and safer fault isolation, enabling faster maintenance and reduced downtime → Application: Surface-mounted and enclosed switch assemblies in rugged environments. Feature: System voltage 480V and voltage - max 480V with 120V control → Business Impact: Supports mixed-voltage ecosystems, improving compatibility across legacy and modern equipment → Application: Industrial plants with mixed voltage levels and centralized control rooms. Feature: Electrical trip with charge-before-close and optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection → Business Impact: Safer switching sequence and enhanced protection against ground faults and fuse failures, minimizing unplanned outages → Application: Critical power circuits in manufacturing and processing facilities. Feature: UL Listed certification and NEMA ratings (1, 3R, 4, 12) → Business Impact: Compliance-ready for safety audits and installation in harsh environments, reducing certification effort and risk → Application: Panels restricted by strict safety standards and enclosure requirements. Feature: Optional auxiliary contact provisions and Kirk provisions → Business Impact: Extended monitoring and integration with automation systems, enabling smarter diagnostics and control → Application: Modernized control schemes and retrofit projects in existing lines.
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FAQs
For new panel installations, ensure a top-feed connection matches the three-pole, 3-wire configuration and that the enclosure supports the NEMA ratings (1, 3R, 4, 12). Verify clear clearance for 480V system voltage and that the control circuit is wired to the 120V control input. Optional accessories like ground fault relay can enhance protection without complicating wiring.
Key specs include a 1600A amperage rating, 120V control voltage, 480V system voltage, and a 1 NO-1 NC contact arrangement across three poles. The unit is fusible and designed for top-feed installation, with a 16 in x 28 in x 24 in footprint and 175 lb weight, suitable for high-current switching in demanding environments.
Yes. With a 1600A rating and three-pole configuration, this switch is designed for main feeders and heavy-load panels. Its top-feed, fusible design and compatibility with 480V systems make it well-suited for motor control centers, switchgear assemblies, and other high-current installations in manufacturing settings.
The CB1633T1204805 is UL Listed, providing essential safety certification for electrical equipment. It also supports several NEMA enclosure ratings (1, 3R, 4, 12), aiding compliance in harsh environments. Optional features such as Ground Fault Relay and auxiliary contacts further support regulatory and safety protocols in controlled environments.
The unit’s high-current capability, robust top-feed design, and optional protective accessories reduce downtime by improving fault isolation and speed of maintenance. The charge-before-close feature enhances safe operation under load, while UL Listing and solid enclosure ratings simplify commissioning and audits, contributing to lower lifecycle costs.