Eaton CB1633B120480KGR5 Bolted pressure switch - UL Listed
Part Number: CB1633B120480KGR5
Quick Summary
The Eaton CB1633B120480KGR5 is a bolted pressure switch designed for robust motor protection in industrial switchgear and control panels. This solution addresses the common challenge of nuisance trips and unplanned downtime by delivering a reliable, interlocked trip with SPVR capability. It carries UL Listed certification and is compatible with rugged NEMA enclosures (1, 3R, 4, 12), ensuring dependable performance in varied environments. With a 1600A amperage rating, 480V system voltage, and 120V control power, the CB1633B120480KGR5 supports scalable protection schemes while offering optional features like Ground Fault Relay and auxiliary contacts to match evolving control architectures. This combination translates to measurable business value through improved uptime, safer operation, and streamlined maintenance in industrial facilities.
Product Information
Extended Description
CB1633B120480KGR5 Eaton: Eaton pringle bolted pressure contact switch,Interlock, Single-phase relay with capacitor trip device (SPVR),1600A,1NO-1NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120480KGR5
UPC
782116958313
Product Length/Depth
16 in
Product Height
32 in
Product Width
24 in
Product Weight
200 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
Bottom
Fuse configuration
Bottom 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, 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 - CB1633B120480KGR5
Feature: High current and multi-pole protection (1600A, three-pole, 1NO-1NC) → Business Impact: Enables wiring efficiency and protective coordination for large motor circuits, reducing the risk of equipment damage during faults. Application: Motor control centers and heavy machinery installations where high fault currents are expected. Feature: Interlock and capacitor trip device (SPVR) → Business Impact: Delivers controlled, rapid tripping to minimize arc flash exposure and equipment stress, lowering maintenance costs. Application: Start/stop sequences in process lines requiring reliable shutdown on phase anomalies. Feature: Ground fault capability and optional auxiliary provisions → Business Impact: Enhances safety and fault detection, supporting compliance with plant ground fault protection strategies. Application: Integrated protection in panels with ground fault sensing and remote signaling. Feature: NEMA-rated enclosure compatibility (1, 3R, 4, 12) → Business Impact: Broad environmental resilience reduces enclosure-specific redesigns, accelerating panel assembly. Application: Indoor/outdoor installations in demanding industrial environments. Feature: UL Listed and fusible protection → Business Impact: Ensures regulatory compliance while providing predictable fuse coordination for safe isolation. Application: Standard industrial switchgear assemblies and protective panels.
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FAQs
Install CB1633B120480KGR5 as a bottom-feed, three-pole device with 1NO-1NC contact configuration. Ensure adequate panel clearance and mounting to accommodate its 16 in x 24 in x 32 in footprint and 200 lb weight. Verify UL Listed compliance and confirm compatibility with optional features like Ground Fault Relay and auxiliary contacts for signaling and coordination.
The switch includes ground fault with a control power transformer in its physical attributes and supports optional Ground Fault Relay. This enables immediate fault detection and interrupt signaling within motor control centers, improving personnel safety and reducing undetected leakage currents that could affect equipment insulation and performance.
Key ratings include 1600A amperage, 480V system voltage, 480V voltage max, and 120V control voltage. It features a three-pole design with 1NO-1NC contacts and bottom feed/fuse configuration, making it suitable for fusible protection in medium-lamp motor circuits and shared line protection in switchgear.
Yes. The CB1633B120480KGR5 is UL Listed, providing recognized safety compliance for industrial equipment. It also supports NEMA-rated enclosures including NEMA 1, NEMA 3R, NEMA 4, and NEMA 12, enabling reliable operation in both indoor and outdoor or harsh environments without extensive enclosure modification.
Maintenance benefits come from reduced nuisance trips due to SPVR interlock and predictable fuse coordination, plus optional ground fault and auxiliary signaling. The improved uptime and controlled shutdown translate to lower downtime costs, safer operation, and a faster return on investment in motor control and protection schemes.