Eaton CB1633B120208PC Pringle pressure switch - UL Listed
Part Number: CB1633B120208PC
Quick Summary
The Eaton CB1633B120208PC bolted pressure switch protects power feeds in industrial equipment, delivering reliable overcurrent protection for single- and three-phase systems. Engineers often face nuisance trips and wiring mismatches when upgrading protection schemes; this unit addresses those challenges with a capacitor trip device and a charge-before-close mechanism that coordinates safely with motor starters. UL Listed and rated for NEMA 1, 3R, 4, and 12 enclosures, it is equally suited to clean indoor panels and rugged outdoor installations when placed in appropriate enclosures. With a 208 V system voltage and 120 V control voltage, it supports compact panel designs and faster fault isolation, while optional features deliver enhanced safety without invasive retrofits.
Product Information
Extended Description
CB1633B120208PC Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (Taylor),1600A,120V,Bottom feed,No ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB1633B120208PC
UPC
782116958894
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.
Feed type
Bottom
Fuse configuration
Bottom 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
208 V
Voltage - max
208 V
Voltage rating
208 V
Special features
Single-phase voltage relay with capacitor trip device (Taylor)
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB1633B120208PC
Feature: High-current capability up to 1600A with a three-pole, three-wire arrangement. Business Impact: This rating enables direct protection of large motors and feeders, reducing the need for multiple protective devices and simplifying panel design. Application: Ideal for plant-wide feeders, heavy conveyors, pumps, and process equipment in manufacturing environments. Feature: Electrical trip with capacitor trip device and charge-before-close mechanism. Business Impact: Delivers reliable, coordinated tripping for single-phase protection, reducing nuisance trips and extending switch life. Application: Suitable for motor control centers and drive systems where single-phase faults must be isolated quickly. Feature: Bottom feed configuration and bottom-feed protection using fusible elements. Business Impact: Simplifies wiring, improves fault discrimination, and eases fuse replacement in crowded panels. Application: Bottom-fed distribution panels and service equipment in new installations or retrofits. Feature: Broad NEMA ratings and UL Listed certification. Business Impact: Ensures compatibility with common industrial enclosures and compliance with safety standards, reducing regulatory risk. Application: Indoor and outdoor installations when used with suitable enclosures in harsh environments. Feature: Optional Ground Fault Relay, Blown Fuse Detection, single-phase protection, Kirk provisions, and auxiliary contact provisions. Business Impact: Extends protective functionality without major hardware changes, enabling scalable protection schemes and easier upgrades. Application: Retrofit projects and new builds requiring enhanced monitoring and interlocks. Feature: 208 V system voltage with 120 V control voltage and three-wire configuration. Business Impact: Improves installation speed and reliability, reducing commissioning time and field wiring errors. Application: Industrial power distribution in manufacturing facilities that run large loads on 208 V/120 V systems.
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FAQs
Ensure the panel enclosure is rated for the environment with appropriate NEMA protection (1/3R/4/12 as required). Use the bottom-feed layout to route conductors cleanly, match the three-wire configuration, and coordinate fuse protection with the device’s 1600A rating. Verify 208V system voltage and 120V control voltage compatibility before energizing. Refer to Eaton’s datasheet for wiring schematics and permitted accessory configurations.
Key specs include a 1600A amperage rating, 208V system voltage, 120V control voltage, and three-pole, three-wire configuration with fusible protection. The device features an electrical trip with a capacitor trip device (Taylor) and a charge-before-close mechanism to ensure safe, coordinated switching and reliable single-phase protection in motor circuits.
Yes, when installed in a suitable outdoor-rated enclosure. The unit carries NEMA ratings including 1, 3R, 4, and 12, and is UL Listed, which supports use in indoor and outdoor environments with proper enclosure selection and weatherproofing as required by your installation site.
The product is UL Listed and NEMA-rated for 1, 3R, 4, and 12 enclosures. These certifications ensure compliance with safety and performance standards for industrial protection devices, reduce regulatory risk, and simplify panel approvals for manufacturers and integrators.
The unit carries Eaton’s warranty policy (one year from installation or eighteen months from shipment, whichever occurs first). With fusible protection and optional features like ground fault detection and auxiliary contacts, maintenance intervals focus on fuse replacement, connection integrity, and optioned monitoring equipment, which can translate to lower downtime and improved return on investment over the equipment’s life.