Eaton CB4033B120480GR7 Bolted pressure switch - UL Listed

Part Number: CB4033B120480GR7
Manufacturer
Eaton
Part number
CB4033B120480GR7

Quick Summary

Eaton CB4033B120480GR7 bolted pressure switch provides reliable protection in industrial switchgear and distribution panels, enabling safe, high-current control in demanding environments. In critical processes, nuisance trips and hidden faults can halt production, driving downtime, maintenance costs, and safety concerns. UL Listed safety certification and broad NEMA ratings (NEMA 1, 3R, 4, 12) support operation in enclosure-lined spaces from plant floors to outdoor installations. Designed for panel builders and OEMs, this unit enables plug-and-play installation and scalable single-phase protection with low lifecycle costs. The combination of SPVR capability, 4000A rating, and ease of integration supports uptime, regulatory compliance, and cost-effective modernization projects.

Product Information

Extended Description

CB4033B120480GR7 Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR),4000A,2NO-2NC,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480GR7
UPC
782116950560
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
2 NO-2 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
480 V
Voltage - max
480 V
Voltage rating
480 V
Special features
Single-phase voltage relay with capacitor trip device (SPVR)
The 2 NO-2 NC contact configuration across three poles delivers multi-circuit control in a compact package. This reduces wiring complexity and panel footprint, speeding installation for motor control centers and power distribution cabinets. It’s well-suited for applications requiring simultaneous signaling and protection across several lines. Ground fault protection with a control power transformer option enhances safety by detecting ground faults and isolating faults quickly. The feature lowers risk of equipment damage and protects personnel, while aligning with ANSI/UL safety practices in industrial facilities. In practice, technicians appreciate fewer nuisance trips due to selective coordination with SPVR. Single-phase voltage relay with capacitor trip device (SPVR) provides fast, controlled tripping during capacitor switching events. This reduces inrush stress on feeders and maintains system stability in motor starter configurations. The result is improved reliability for critical processes and smoother startup sequences in production lines. With a 4000A amperage rating and a 480V system voltage capacity, CB4033B120480GR7 handles large loads without compromising response time. The 120V control voltage matches standard plant controls, simplifying integration with existing relays and controllers. Combined with fusible protection, it supports compliant, robust protection in harsh industrial environments. Bottom feed and bottom-fuse configuration streamline installation in recessed enclosures and compact switchboards. Three-wire, three-pole construction aligns with typical distribution panel layouts, enabling straightforward wiring diagrams and reduced installation errors. Enclosures rated to NEMA 1, 3R, 4, and 12 expand placement options across indoor and outdoor applications. UL Listed certification and broad NEMA ratings give procurement teams confidence in regulatory compliance and long-term compatibility with Eaton spare parts and auxiliary provisions.

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FAQs

CB4033B120480GR7 is designed for three-pole bottom-feed configurations in standard switchgear enclosures. Plan for a compact footprint (approximately 22.5 in depth, 32 in height, 40 in width) and proper grounding. Select fusible or non-fusible feeds as required, and accommodate optional features such as ground fault relay. Ensure compatibility with NEMA-rated enclosures for indoor or outdoor applications.
The unit delivers a 4000A interrupt capability with a 480V system voltage and 120V control, paired with fusible protection for fast fault clearing. Ground fault protection can be added via the optional ground fault relay, reducing equipment damage and personnel risk. The SPVR design helps coordinate breaking events and maintains system stability during fault conditions.
Yes. The CB4033B120480GR7 features a three-pole, 2NO-2NC contact arrangement designed for bottom-feed wiring in 480V systems. It uses a bottom fuse configuration and three wires, simplifying installation in standard distribution panels and switchgear while providing robust protection and reliable operation under high-current conditions.
CB4033B120480GR7 is UL Listed and rated for multiple NEMA enclosures (NEMA 1, 3R, 4, 12), ensuring electrical safety and enclosure versatility. These certifications support code compliance during audits, simplify procurement for regulated facilities, and improve compatibility with standard electrical drawings and maintenance procedures.
Deploying CB4033B120480GR7 can improve uptime by reducing nuisance trips and enabling faster fault isolation thanks to SPVR and ground fault options. Its high current rating and robust enclosure compatibility simplify integration, lowering installation time and spare-part inventory. Over the product lifecycle, these factors contribute to lower maintenance costs and safer, more reliable production lines.