Eaton CB4033T120480KGR Bolted Pressure Switch - UL Listed
Part Number: CB4033T120480KGR
Quick Summary
CB4033T120480KGR bolted pressure switch provides fast, reliable interlock protection for demanding electrical panels and power distribution systems. Maintenance teams often struggle with unreliable trip devices that lead to unexpected downtime; this unit mitigates that risk with a high current rating and a capacitor trip device (SPVR) for dependable charge-before-close operation. This product is UL Listed and designed for rugged environments, with compatibility across NEMA 1, 3R, 4, and 12 enclosures to meet diverse installation needs. For engineering teams, the combination of top-feed configuration, fusible protection, and a three-pole design reduces wiring complexity and speeds up commissioning while enhancing overall system reliability.
Product Information
Extended Description
CB4033T120480KGR Eaton: Eaton pringle bolted pressure contact switch,Interlock, single-phase relay with capacitor trip device (SPVR),4000A,120V,Top feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033T120480KGR
UPC
782116949793
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
480 V
Voltage - max
480 V
Voltage rating
480 V
Special features
Interlock, single-phase 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 - CB4033T120480KGR
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Extremely high amperage rating of 4000A and a 480V system voltage. Business Impact: Enables protection of large switchgear assemblies and minimizes the risk of overheating and cascading faults. Application: Heavy-industrial power distribution panels and busway connections. Long-tail keywords: high current protection, 4000A switch, 480V protection. Feature: SPVR capacitor trip device with interlock. Business Impact: Improves safety and reduces arc flash exposure by ensuring a controlled, charge-before-close sequence. Application: Critical protection in automated lines and packaging machinery. Long-tail keywords: capacitor trip device, interlock protection, SPVR. Feature: Three-pole, three-wire top-feed configuration. Business Impact: Simplifies wiring, reduces installation time, and improves enclosure compatibility. Application: New builds and retrofits in vertical-mounted panel boards. Long-tail keywords: top feed switch, three-pole protection. Feature: Ground fault with control power transformer and fusible protection. Business Impact: Enhances fault detection and selective protection, lowering downtime and maintenance costs. Application: Facilities requiring robust ground fault sensing and fuse protection. Long-tail keywords: ground fault relay, fusible protection, control transformer. Feature: Optional accessories and robust enclosure compatibility. Business Impact: Expands protection options (Ground Fault Relay, Blown Fuse Detection, Auxiliary Contacts) without overhauling the panel. Application: Retrofit projects and custom control schemes. Long-tail keywords: auxiliary contact provisions, Kirk provisions, protection options. Feature: Large industrial enclosure footprint with UL Listed certification. Business Impact: Provides durable, compliant installations ready for rigorous environments, reducing commissioning risk. Application: Commercial distribution centers, manufacturing floors, and process industries. Long-tail keywords: UL Listed protection, NEMA compatible enclosure, rugged switchgear.
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FAQs
When installing CB4033T120480KGR, verify clearance for a 40 in width, 28 in height, and 17 in depth unit weighing 390 lb. Plan top-feed wiring for three poles and three wires, and ensure mounting surface can support the weight. Use UL Listed protection and consider optional Ground Fault Relay or auxiliary contacts for expanded protection.
SPVR stands for capacitor trip device with charge-before-close. It ensures the capacitor circuit is charged before closing the switch, reducing inrush and arc flash risk while improving selectivity. In CB4033T120480KGR, this feature enhances reliability in high-current 480V systems and supports safer commissioning and operation.
Yes. The CB4033T120480KGR is a three-pole, three-wire device rated for 480V and suitable for heavy-duty 3-phase applications. It supports ground fault protection options and can be integrated with a control power transformer for enhanced safety and fault detection in industrial switchgear.
The CB4033T120480KGR carries UL Listed certification, indicating compliance with recognized safety standards. Its NEMA compatibility includes ratings for enclosures such as NEMA 1, 3R, 4, and 12, ensuring suitable installation across diverse environmental conditions.
Eaton provides a warranty per Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For support, rely on Eaton’s technical resources, installation notes, and the available specification sheet and catalog PDFs to optimize performance and maintenance planning.