Eaton CB1633T120480RA9 Pringle pressure switch - UL Listed
Part Number: CB1633T120480RA9
Quick Summary
CB1633T120480RA9 is a high-capacity bolted pressure switch designed for three-pole power distribution in industrial panels. This Eaton device addresses nuisance trips and misdiagnosis by integrating a capacitor trip module (SPVR) and a clear trip indication system. With UL Listed certification and compatibility across common NEMA enclosures, it supports stringent safety and regulatory requirements. The unit combines robust protection with straightforward installation and optional features, delivering reliable protection while helping reduce maintenance costs and downtime for growing facilities.
Product Information
Extended Description
CB1633T120480RA9 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three on lights (trips switch),1600A,120V,Top feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633T120480RA9
UPC
782116957163
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
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
Special features
Single-phase voltage relay with capacitor trip device (SPVR), BFD with three normally on 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 - CB1633T120480RA9
Feature → The CB1633T120480RA9 delivers a 1600A amperage rating and supports a 480V system with a 120V control voltage, enabling it to handle large motor and feeder loads with confidence. Business Impact → Higher load capacity reduces panel counts, simplifies wiring, and decreases total cost of ownership over the equipment life. Application → Ideal for heavy-industrial power distribution where reliability and fast protection response are essential. Feature → SPVR with capacitor trip device for single-phase protection enhances fault discrimination and reduces nuisance trips. Business Impact → Improves uptime and safety by delivering a controlled trip sequence, minimizing arc flash exposure and unplanned downtime. Application → Critical in manufacturing lines and process industries where single-phase faults are common. Feature → Top feed and top fuse configuration with no ground fault option and three-pole, three-wire design. Business Impact → Streamlines installation, simplifies maintenance, and supports modular upgrades in existing switchgear. Application → Suitable for retrofit projects and new builds requiring compact, robust protection. Feature → UL Listed with NEMA 1, 3R, 4, 12 enclosure compatibility ensures regulatory compliance and safer enclosure installation. Business Impact → Reduces compliance risk and accelerates project approvals. Application → Widely used in environments ranging from control rooms to harsh factory floors. Feature → Optional Ground Fault Relay, Blown Fuse Detection, and auxiliary provisions provide flexible protection schemes. Business Impact → Enables tailored protection strategies, lowering unplanned outages and extending asset life. Application → Great for plants needing configurable protection and clear maintenance visibility.
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FAQs
CB1633T120480RA9 is designed for top-feed, three-pole installations with fusible configuration and SPVR. It fits standard panel enclosures and supports optional ground fault and auxiliary provisions. When retrofitting, verify footprint (16 x 24 x 28 in), wiring count (three wires), and availability of space for the capacitor-trip module to ensure clean installation and reliable operation.
Key specs include an amperage rating of 1600A, system voltage of 480V, and a control voltage of 120V. The unit is rated for NEMA 1, 3R, 4, and 12 enclosures and uses a fusible protection scheme. It features a single-phase voltage relay with capacitor trip (SPVR) and a three-wire, three-pole configuration to ensure robust protection.
Industries with heavy motor loads and critical protection needs, such as manufacturing plants, processing facilities, and data centers, benefit from its high amperage capacity, SPVR protection, and UL Listed safety certification. It supports reliable fault protection in panelboards and motor control centers, especially where top-feed configurations are preferred.
The CB1633T120480RA9 is UL Listed and compatible with multiple NEMA enclosure types (1, 3R, 4, 12), providing clear compliance guidance for plant safety and installation standards. This helps reduce regulatory risk and simplifies integration into existing industrial power distribution systems.
The unit’s robust construction and SPVR-based protection contribute to reduced downtime and fewer nuisance trips, improving uptime. A 1-year warranty from installation or 18 months from shipment supports initial reliability, and optional features like Ground Fault Relay and auxiliary provisions enable tailored protection strategies, potentially lowering long-term maintenance costs.