Eaton CB4033T120208CT Pringle bolted switch - UL Listed
Part Number: CB4033T120208CT
Quick Summary
Eaton pringle bolted pressure contact switch provides high-current protection for industrial control panels and motor starters. It handles 4000A with a 120 V control power transformer and 208 V system, in a top-feed configuration for compact panel layouts. Engineers often confront wiring complexity and reliability gaps when integrating large protective devices into crowded enclosures, leading to field faults and maintenance delays. This model carries UL Listed certification and complements NEMA-rated enclosures (NEMA 1, 3R, 4, 12) to endure moisture, dust, and harsh conditions. By combining transformer-supported control circuits with rugged protection, it streamlines procurement, speeds installation, and reduces total cost of ownership for heavy-duty applications across industrial facilities.
Product Information
Extended Description
CB4033T120208CT Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,4000A,120V,Top feed,No ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120208CT
UPC
782116950393
Product Length/Depth
17 in
Product Height
28 in
Product Width
40 in
Product Weight
390 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
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
With control power transformer
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033T120208CT
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Built-in control power transformer simplifies control circuits. Business Impact: Reduces wiring complexity and panel wiring errors, enabling faster installation and easier maintenance. Application: Control panels for motors and conveyors where space is at a premium. Feature: Top feed fuse configuration for straightforward wiring. Business Impact: Improves reliability by minimizing mis-wiring risk and enabling clean tray routing in vertical enclosures. Application: Large switchgear and machine control panels in manufacturing lines. Feature: UL Listed with broad NEMA enclosure compatibility (1, 3R, 4, 12). Business Impact: Supports regulatory compliance and safe operation in damp, dusty, or outdoor environments. Application: Enclosures in industrial plants, water treatment, and process lines. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary Contact Provisions. Business Impact: Enhances fault detection and protection coverage, reducing outage time and improving diagnostics. Application: Critical power distribution where fast fault isolation matters. Feature: High current rating of 4000A and system voltage of 208V. Business Impact: Enables safe, reliable switching of large loads with minimal voltage drop and improved protection margins. Application: Heavy motor starting, power distribution panels, and high-capacity control circuits. Feature: Robust physical dimensions and weight (approximately 17 in x 28 in x 40 in; 390 lb) support secure installation in large enclosures. Business Impact: Reduces vibration-related wear and simplifies mounting in fixed installations. Application: Industrial plants with rugged environments and long service intervals.
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FAQs
CB4033T120208CT is a three-pole, fusible switch designed for top-feed installation with 3 wires. It supports a 208 V system and 120 V control voltage, and its top-feed fuse configuration simplifies wiring paths inside compact enclosures. When planning installation, verify enclosure space, mounting provisions, and clearances for the 390 lb unit to ensure serviceability and safe operation.
The switch is rated for up to 4000 A with a 208 V system voltage and 120 V control voltage, suitable for high-current motor starts and distribution tasks. Its fusible protection provides clear fault isolation, while the built-in control power transformer reduces external wiring and potential connections that can fail under load, improving overall reliability in dynamic industrial environments.
Yes, CB4033T120208CT supports NEMA ratings of 1, 3R, 4, and 12, indicating suitability for damp, dusty, and washdown-exposed applications when installed in proper enclosures. UL Listed certification reinforces safety and compliance, making it a robust choice for harsh industrial settings and corrosive environments when installed with appropriate enclosure protection.
UL Listed certification confirms the product meets recognized safety standards for electrical equipment, supporting regulatory compliance in many regions. The device’s NEMA-rated enclosure compatibility further assures protection levels for specific environments. Optional features like ground fault relay and auxiliary provisions enhance diagnostic capabilities and protection schemes, helping meet stricter maintenance and safety requirements.
Incorporating CB4033T120208CT can lower maintenance costs by reducing wiring complexity through the built-in control transformer and by providing reliable, high-current protection. Optional fault-detection features minimize downtime by enabling faster fault isolation and easier diagnostics. While the initial weight and size require careful installation planning, the long-term reliability and reduced troubleshooting translate to meaningful ROI in high-demand facilities.