Eaton CB4033B120208R Pringle Bolted Switch - UL Listed
Part Number: CB4033B120208R
Quick Summary
Eaton pringle bolted pressure contact switch is a high-capacity single-phase relay with capacitor trip device (SPVR) for motor protection in industrial power distribution. In real-world plants, nuisance trips and slow fault clearance cost downtime; this device is designed to deliver reliable protection with measurable availability improvements. UL Listed safety certification ensures compliance, while NEMA-rated enclosures—NEMA 1, 3R, 4, 12—support reliability across diverse environments. This solution also integrates seamlessly with existing control architectures, offering 120 V control and 208 V system voltage, plus compatibility with optional ground fault relays and auxiliary contact provisions for added versatility. By combining protection with practical installation advantages, it helps engineering teams reduce lifecycle costs and optimize plant performance.
Product Information
Extended Description
CB4033B120208R Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),4000A,120V,Bottom feed,No ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120208R
UPC
782116950812
Product Length/Depth
22.5 in
Product Height
32 in
Product Width
40 in
Product Weight
430 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
4000A
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 (SPVR)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033B120208R
Feature SPVR is integrated as a capacitor-trip device that provides fast fault clearance, reducing motor stress and arc exposure. Business impact: lower downtime and extended motor life in motor feeders. Application: ideal for switchgear, control panels, and process lines requiring dependable protection. The 4000 A amperage rating supports large motor starts and high-current feeders, while 120 V control and 208 V system voltages align with standard plant electrical infrastructure, minimizing additional components. The three-pole, bottom-feed configuration with fusible protection simplifies enclosure layouts and reduces wiring complexity in compact panels, enabling faster installation. Optional Ground Fault Relay, Blown Fuse Detection, auxiliary contact provisions, and Kirk provisions offer modular protection and easier retrofits in evolving facilities. UL Listed certification and broad NEMA ratings (1, 3R, 4, 12) reinforce safety, reliability, and compliance across harsh industrial environments.
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FAQs
CB4033B120208R is designed for straightforward integration in switchgear and control panels. Use the bottom-feed fusible configuration to simplify wiring routes and minimize enclosure depth. Ensure enclosure is compatible with the unit’s NEMA ratings (1, 3R, 4, 12) for your environment, and plan for optional ground fault relay or auxiliary contact provisions if your protection scheme requires modular upgrades or future expansions.
The 4000 A amperage rating supports high-current motor starts and large feeders, while 208 V system voltage with 120 V control provides a robust, industry-standard configuration. The capacitor trip device (SPVR) enables rapid, capacitor-assisted tripping to minimize arcing and electrical stress during faults, improving reliability in demanding loads such as conveyors, pumps, and high-inertia motors.
Yes. With fusion-protected, three-pole design and fusible protection, the switch is well-suited for intensive manufacturing and processing facilities. The UL Listed certification and the NEMA ratings (1, 3R, 4, 12) indicate strong performance in varied environments, including dusty, damp, or protective-enclosure scenarios common in plants and water-intensive processes.
UL Listed indicates the device has met recognized safety standards and undergone testing by Underwriters Laboratories. It provides assurance to procurement and compliance teams that the switch meets essential safety criteria for electrical protection applications. While CE certification is not specified in the data, the UL listing, combined with NEMA enclosure ratings, supports safe integration in many global industrial settings.
The unit carries Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. Its robust SPVR design, modular protections (Ground Fault Relay, auxiliary provisions), and durable fusible protection reduce downtime and maintenance costs. A UL-listed, rugged construction also lowers total cost of ownership by improving reliability in critical motor feeders and switchgear upgrades.