Eaton CB4033T120208GRAX Pringle bolted pressure contact switch - UL Listed
Part Number: CB4033T120208GRAX
Quick Summary
CB4033T120208GRAX is a bolted pressure contact switch designed for reliable motor protection in industrial switchgear. It addresses nuisance trips and startup faults that can disrupt production, by delivering deterministic protection with a capacitor trip device. UL Listed certification reinforces safety and compliance, while its NEMA 1/3R/4/12 compatibility supports containment in varied environments. Coupled with top-feed configuration and ground-fault protection options, the device delivers reliability, reduced maintenance, and faster fault isolation for power distribution and motor control systems. This combination supports safer, faster commissioning and easier regulatory audits across plant operations. For buyers evaluating Eaton switching devices, CB4033T120208GRAX offers a proven footprint with robust protection features.
Product Information
Extended Description
CB4033T120208GRAX Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),4000A,120V,Top feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120208GRAX
UPC
782116950157
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
Single-phase voltage relay with capacitor trip device (SPVR), BFD with no lights (trips switch)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - CB4033T120208GRAX
The CB4033T120208GRAX delivers a 4000A amperage rating with 120 V control and 208 V system voltages. This high capacity protects large motors and feeders without frequent nuisance trips, improving uptime during startup and peak load conditions. It also supports reliable coordination with upstream protection devices, reducing the likelihood of unnecessary system-wide outages. Application: It is ideally suited for heavy-duty switchgear and motor control centers in manufacturing, process industries, and material handling facilities. SPVR integration provides a capacitor trip device that improves protection selectivity and trips with controlled energy, reducing arc energy and accelerating fault clearance. Application: Particularly effective for motor feeders and critical loads where fast, predictable protection preserves downstream equipment and operator safety. It also helps meet safety guidelines for short-circuit protection in industrial power distribution. Top feed configuration and fuse protection streamline installation, wiring, and commissioning. Ground fault protection options add an extra layer of safety for feeders connected to transformers and complex MCCs. Together, these capabilities simplify field service and support scalable expansion as plant demand grows. NEMA compatibility and UL Listed certification provide regulatory comfort and environmental readiness. The three-pole design ensures robust switching performance across multi-conductor circuits and aligns with standard Eaton switching devices for easier spare parts management. This combination helps facilities meet safety standards while reducing total cost of ownership. Three-pole, three-wire design with pringle bolted contact switch mechanism and fusible protection offers long service life and predictable protection curves. The rugged enclosure footprint supports fast installation in existing racks and panels, enabling reliable uptime for critical processes and a clear return on investment.
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FAQs
CB4033T120208GRAX is designed to integrate with Eaton switching devices using a top-feed, three-pole configuration. Ensure the three-wire connection matches your panel design and that the fusible protection is selected for your fault-clearing needs. The unit’s mounting footprint aligns with standard switchgear panels, enabling straightforward retrofit or new-build installations and reducing field wiring complexity.
SPVR provides a capacitor-based trip that activates before full closing, improving coordination with upstream protection. This reduces arc energy and shortens fault duration, minimizing collateral damage to downstream equipment. It is well suited for motor feeders and critical loads where fast, reliable protection enhances uptime and safety.
Yes. CB4033T120208GRAX is UL Listed and supports NEMA 1, 3R, 4, and 12 enclosures. This combination ensures compliance with safety standards and suitability for indoor, damp, and rugged environments. Engineers benefit from reduced compliance risk during audits and streamlined procurement when aligning with facility standards.
Key ratings include 4000A amperage, 120 V control voltage, 208 V system voltage, and a three-pole configuration with fusible protection. It uses a top-feed wiring approach and supports 3 wires. Voltage-max and voltage rating are both 208 V, making it suitable for 208V distribution systems and similar applications.
The bolted pressure contact design offers robust longevity and fewer mechanical failures, while SPVR integration minimizes unplanned downtime by improving fault clarity. With Eaton’s warranty and compatibility with standard parts, maintenance cycles are predictable, reducing total cost of ownership and accelerating payback through fewer outages and easier spare parts management.