Eaton CB3033B120480GRAR Bolted Pressure Switch - UL Listed
Part Number: CB3033B120480GRAR
Quick Summary
Eaton CB3033B120480GRAR bolted pressure switch provides protective isolation for power distribution systems. Engineers often face nuisance trips and trace faults that disrupt production, so reliable, predictable protection matters. UL Listed certification ensures safety compliance, and the unit supports robust enclosure options with NEMA ratings including 1, 3R, 4, and 12 for harsh environments. The bottom-feed design, three-pole configuration, and fusible protection enable straightforward installation and fault handling. SPVR capacitor trip devices reduce arc flash risk while maintaining quick, clean trips. With 120 V control voltage and 480 V system voltage, this switch aligns with common industrial controls, delivering dependable protection and ease of maintenance.
Product Information
Extended Description
CB3033B120480GRAR Eaton: Eaton pringle bolted pressure contact switch,Single-phase relay with capacitor trip device (SPVR), BFD with three off lights (trips switch),3000A,120V,Bottom feed,Ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120480GRAR
UPC
782116899289
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.
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
3000A
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), BFD with three normally off 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 - CB3033B120480GRAR
Feature: Three-pole bolted pressure switch design provides high-current handling for motor feeders, enabling safe, fault-tolerant operation in 480 V distribution networks. Impact: Supports up to 3000 A with bottom-feed configuration, reducing wiring complexity and installation time. Application: Ideal for large industrial switchgear and control panels where space is at a premium and reliability is critical. Feature: SPVR capacitor trip device delivers rapid, controlled trips, lowering arc flash risk and preventing unwanted nuisance activations, which translates to higher plant uptime and predictable protection for sensitive loads. Application: Suitable for a variety of industrial controls requiring dependable single-phase protection. Feature: Ground fault with control power transformer enhances fault detection and safety in mission-critical facilities. Impact: Improves protection coordination and operator safety across 3-wire circuits. Application: Hospitals, data centers, and manufacturing lines with stringent safety standards. Feature: NEMA-rated enclosure compatibility (NEMA 1, 3R, 4, 12) and fusible protection enable rugged performance in harsh environments. Impact: Compliance with enclosure requirements and protection against dust, water, and corrosion. Application: Outdoor installations and dirty industrial environments where durability matters. Feature: UL Listed certification and Eaton warranty provide regulatory confidence and long-term support. Impact: Accelerates procurement and simplifies maintenance planning. Application: Industrial power distribution projects demanding code-compliant, reliable protection.
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FAQs
CB3033B120480GRAR is designed for bottom-feed, three-pole installations in 480 V distribution systems. With fusible protection and three-wire configuration, it suits large motor feeders and switchgear. The unit's 120 V control voltage supports common control circuits, while UL Listed certification confirms safety compliance for industrial environments.
This switch handles up to 3000 A with a 480 V system voltage and a 120 V control voltage. It is fusible-protected and features a SPVR capacitor trip device for controlled trips, reducing nuisance trips and protecting downstream equipment in industrial power distribution.
The SPVR capacitor trip device injects a pre-charged capacitor for rapid trip initiation when a fault is detected, enabling faster, controlled opening of the circuit. This minimizes arc flash risk and limits damage to protective devices, improving overall safety and uptime in protected circuits.
Yes. Bottom-feed, three-wire configuration paired with fusible protection and NEMA-rated enclosure compatibility (NEMA 1, 3R, 4, 12) makes CB3033B120480GRAR well-suited for harsh industrial settings, including outdoor or dusty facilities. The design supports reliable operation in challenging environments while maintaining straightforward integration.
The CB3033B120480GRAR is UL Listed, confirming safety and compliance with recognized standards. The Eaton warranty covers one year from installation or 18 months from shipment, whichever comes first. For maintenance, rely on standard Eaton spare parts and ensure compatible auxiliary/contact provisions when expanding protection in control panels.