Eaton CB1633T120480GR Pringle bolted switch - UL Listed
Part Number: CB1633T120480GR
Quick Summary
Eaton CB1633T120480GR is a high-current single-phase pressure contact switch for switchgear and motor control panels. Engineers often struggle to find devices that combine top-feed installation with reliable protection and clear fault tracing. UL Listed certification, plus NEMA ratings of 1, 3R, 4 and 12, help ensure compliance across many environments. With 1600 A amperage, 480 V system voltage and 120 V control voltage, this switch supports demanding industrial applications while optimizing uptime. This combination delivers measurable business value by reducing maintenance intervals and improving safety in critical power paths. Our team values accurate installation guidance and Long-term serviceability, ensuring spare parts availability and predictable maintenance cycles.
Product Information
Extended Description
CB1633T120480GR Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),1600A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480GR
UPC
782116898879
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.
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
Single-phase voltage relay with capacitor trip device (SPVR)
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 - CB1633T120480GR
Feature: High-current rating and rugged construction. Business Impact: Handles up to 1600 A, enabling reliable protection of large motor loads and reducing protective device count. Application: Ideal for switchgear and motor control centers operating at 480 V with a 120 V control circuit. Feature: Top-feed, three-pole design with three-wire configuration. Business Impact: Simplifies wiring, speeds installation, and improves fault isolation in dense panels. Application: Suited for fusible protection configurations in compact switchgear. Feature: SPVR capacitor trip device and electrical trip with charge-before-close mechanism. Business Impact: Improves safe closing and reduces nuisance trips during voltage transients. Application: Critical protection in control schemes where precise timing matters. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Auxiliary Contact Provisions, Kirk Provisions. Business Impact: Enhances diagnostics and expands control options for safety and reliability. Application: Power distribution panels requiring advanced fault detection and expansion capability. Feature: UL Listed certification and NEMA enclosure compatibility. Business Impact: Ensures regulatory compliance and reliable operation in diverse environments. Application: Ideal for industrial environments demanding robust protection and enclosure versatility. Feature: Dimensions and weight management. Business Impact: Predictable installation footprint with 16 in depth, 28 in height, 24 in width and 175 lb weight simplifies panel planning. Application: Suitable for retrofit or new builds in larger switchgear assemblies. Feature: Warranty and support. Business Impact: Provides peace of mind with a defined service window and ongoing support. Application: Applicable across lifecycle planning and maintenance budgeting.
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FAQs
When installing CB1633T120480GR in a top-feed arrangement, plan for its three-pole, three-wire configuration and top-feed fuse connections. The unit weighs about 175 lb and measures roughly 16 in long, 24 in wide, and 28 in high, so provide sturdy mounting and adequate clearances for wiring, control power transformer connections, and future auxiliary provisions. Ensure panel cutouts and knockouts accommodate the top-feed harness and that wiring routes minimize stress on terminations and the capacitor trip device.
CB1633T120480GR delivers 1600 A amperage with 480 V system voltage and 120 V control voltage. It is a three-pole, three-wire, fusible switch designed for 480 V service. Enclosures support NEMA 1, 3R, 4, and 12 environments. Protection is fusible, and the device includes a capacitor trip mechanism (SPVR) for controlled, safe operation and surge handling in demanding applications.
Yes. The catalog notes indicate optional Ground Fault Relay and single-phase protection options, including a Ground Fault with control power transformer setup, as well as SPVR capacitor trip devices. Kirk provisions and auxiliary contact provisions are also available, enabling enhanced fault detection, control signaling, and integration into broader protection schemes.
Ideal for switchgear and motor control centers, as well as power distribution panels operating at 480 V with 120 V control circuits. Its high current rating, three-pole configuration, and fusible protection make it suitable for large motor loads, high-demand feeders, and environments requiring UL Listed compliance and robust enclosure ratings (NEMA 1/3R/4/12).
The product carries Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. It is UL Listed and designed to meet industry protection standards, with accessories and options designed to extend diagnostics and control capability in compliant, monitored power paths.