Eaton CB4033B120208GRAX5 Bolted Pressure Contact Switch - UL
Part Number: CB4033B120208GRAX5
Quick Summary
The Eaton CB4033B120208GRAX5 bolted pressure contact switch provides reliable single-phase protection for low- and medium-voltage motor circuits in industrial facilities. Many buyers struggle with nuisance trips, slow fault detection, and costly downtime in demanding electrical plants. Key certifications include UL Listed and NEMA enclosure ratings (NEMA 1, 3R, 4, 12) to ensure dependable operation in harsh environments. The device supports optional ground fault relay and capacitor trip devices, delivering advanced protection without complicating installation. This combination helps reduce maintenance costs while enabling easier integration with SPVR relays and auxiliary contacts for scalable, compliant control for industrial power distribution and machine control.
Product Information
Extended Description
CB4033B120208GRAX5 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with no lights (trips switch),4000A,1NO-1NC,120V,Bottom feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120208GRAX5
UPC
782116950690
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.
Contact configuration
1 NO-1 NC
Feed type
Bottom
Fuse configuration
Bottom 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
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033B120208GRAX5
Feature: Amperage rating of 4000A. Business Impact: Enables protection for large feeders and high-current circuits, reducing the risk of arc flash and equipment damage. Application: Three-pole switchgear and large motor feeders in manufacturing plants. Feature: 1 NO-1 NC contact configuration. Business Impact: Flexible signaling and control options with minimal wiring changes, speeding up commissioning. Application: Motor starters and protection schemes in packaging lines and conveyors. Feature: Ground fault capability with control power transformer (optional). Business Impact: Enhanced fault detection and selective tripping, improving safety and uptime. Application: Industrial facilities where ground faults must be isolated quickly. Feature: Bottom feed and bottom fuse configuration. Business Impact: Simplified wiring, easier field modification, and safer maintenance during fuse changes. Application: Retrofit projects and new switchgear installations with bottom-fed assemblies. Feature: 120 V control voltage and 208 V system voltage. Business Impact: Flexible compatibility with existing plant power and control circuits, reducing interconnection risk. Application: Electrical rooms and control panels serving mixed voltages. Feature: SPVR single-phase voltage relay with capacitor trip device. Business Impact: Faster, reliable protection for single-phase faults, minimizing equipment damage and downtime. Application: Protective relays in low-voltage motor circuits. Feature: NEMA ratings (1, 3R, 4, 12) and UL Listed certification. Business Impact: Proven environmental protection and regulatory compliance, lowering risk during audits. Application: Harsh industrial environments and outdoor or wet locations. Feature: Optional Ground Fault Relay, Blown Fuse Detection, Auxiliary Contacts provisions. Business Impact: Expandable protection and control, future-proofing installations. Application: Large control panels and integrated safety systems in process plants.
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FAQs
To install the CB4033B120208GRAX5 in an existing panel, verify the three-pole configuration (1 NO-1 NC) and bottom feed arrangement. Confirm fuse protection is compatible with your bus rating and ensure the enclosure supports the NEMA ratings (1, 3R, 4, 12). Use the supplied ground fault or SPVR options if required by your protection scheme.
Key specs include a 4000 A amperage rating, 120 V control voltage, and 208 V system voltage with a 208 V maximum. The device features 1 NO-1 NC contact configuration and is designed for fusible protection. It supports three-pole operation and bottom feed, making it suitable for large motor feeders.
Yes. Designed as a three-pole bolted pressure contact switch with a high 4000 A rating, the CB4033B120208GRAX5 protects large motor feeders in demanding plant environments. Its bottom-feed configuration, UL listing, and NEMA-rated enclosure provide reliable protection and easier integration with existing switchgear and control systems.
The CB4033B120208GRAX5 is UL Listed and carries typical enclosure protections per NEMA ratings (1, 3R, 4, 12). It comes with Eaton’s warranty policy of 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Optional components like Ground Fault Relay and auxiliary provisions are available to extend protection.
Installation benefits include bottom feed for simplified wiring and a 1 NO-1 NC configuration for flexible control. Maintenance advantages arise from robust SPVR options and capacitor trip devices, which reduce nuisance trips and downtime. The device’s modular protection options and NEMA UL certifications support long-term reliability and easier regulatory compliance.