Eaton CB4033T120208G Pringle bolted pressure switch - UL
Part Number: CB4033T120208G
Quick Summary
Eaton CB4033T120208G bolted pressure contact switch protects industrial electrical distribution systems. Engineers often struggle with reliable fault protection and coordinating a control power transformer in demanding environments. UL Listed and compatible with NEMA 1, 3R, 4, and 12 enclosures, this unit supports safe operation across indoor and harsher environments. With top-feed configuration and optional ground fault, blown fuse detection, and auxiliary contact provisions, it reduces downtime and simplifies integration with Eaton switching devices. Designed for manufacturers, data centers, and critical infrastructure, it delivers fast, predictable trip behavior, minimizes nuisance trips, and supports lower maintenance costs through robust protection and scalable capabilities.
Product Information
Extended Description
CB4033T120208G Eaton: Eaton pringle bolted pressure contact switch,With control power transformer,4000A,120V,Top feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120208G
UPC
782116899524
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
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
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 - CB4033T120208G
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Amperage and voltage ratings of 4000A at 208V system with a 120V control supply, three-pole topology, and top feed. Business Impact: Enables protection of large feeders with a compact footprint, improving reliability and reducing wiring complexity while delivering fast, predictable trip performance. Application: Ideal for switchgear, motor control centers, and critical power feeds in manufacturing facilities, data centers, and utilities. Feature: Fusible protection and charge-before-close mechanism. Business Impact: Ensures safe, staged breaker operation and reduces the risk of arcing during switching. Application: High-energy distribution networks and load-start applications. Feature: Ground fault with control power transformer and optional protective provisions (ground fault relay, auxiliary contacts). Business Impact: Enhances fault detection, diagnostics, and expandability, enabling safer, code-compliant installations. Application: Industrial control panels and protective relay schemes requiring precise ground fault sensing. Feature: UL Listed certification and NEMA enclosure compatibility (NEMA 1, 3R, 4, 12). Business Impact: Supports compliance and versatility across indoor and outdoor environments, reducing enclosure modification costs. Application: Indoor factories and outdoor substations. Feature: Physical dimensions and weight (17 in deep, 28 in high, 40 in wide) with top-feed wiring. Business Impact: Facilitates planning and installation in constrained spaces while providing a stable, robust protection platform. Application: Retrofit projects and new installations in industrial switchgear and distribution panels.
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FAQs
Install the CB4033T120208G in a suitable enclosure with a top-feed connection, ensuring the three wires are correctly routed to the three poles. Use the control power transformer as specified and verify the 208V system voltage and 120V control voltage align with your panel design. Secure mounting and perform a functional test per Eaton guidelines.
With a 4000A amperage rating and fusible protection, the CB4033T120208G delivers reliable protection for large feeders. The three-pole design provides balanced switching, while the charge-before-close mechanism minimizes arcing and ensures safer operation during fault conditions in demanding environments.
Yes. The unit supports optional ground fault relay, blown fuse detection, auxiliary contact provisions, and Kirk provisions. These features enable enhanced diagnostics, selective coordination, and easier integration into protective relay schemes without requiring separate protective devices.
The CB4033T120208G is UL Listed, and it is compatible with NEMA 1, NEMA 3R, NEMA 4, and NEMA 12 enclosure types. This combination supports safe operation in both indoor and harsh environments, aiding compliance with industry standards and reducing enclosure modifications during installation.
The device's robust construction, high current rating, and protective features reduce downtime and wear on downstream equipment. Optional fault-detection features and auxiliary provisions simplify maintenance scheduling, while compatibility with existing Eaton switching-device ecosystems can lower total cost of ownership over the life of the installation.