Eaton CB3033B120208KG Pringle Bolted Switch - UL Listed
Part Number: CB3033B120208KG
Quick Summary
The Eaton CB3033B120208KG pringle bolted pressure contact switch provides high-current motor protection for industrial power distribution. Engineers often struggle with nuisance trips and slow fault isolation when protection gear isn’t dependable in harsh environments. UL Listed safety certification helps meet electrical codes, while the NEMA ratings guide enclosure compatibility (NEMA 1, 3R, 4, 12). The design also supports low-voltage power distribution and ground fault protection, enabling safer commissioning and longer service life for plant feeders.
Product Information
Extended Description
CB3033B120208KG Eaton: Eaton pringle bolted pressure contact switch,Interlock,3000A,120V,Bottom feed,Ground fault,208V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B120208KG
UPC
782116951543
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
208 V
Voltage - max
208 V
Voltage rating
208 V
Special features
Interlock
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B120208KG
Feature: High-current capability and voltage handling. Business Impact: Enables safe, reliable protection for large motors and feeders, reducing arc fault risk and downtime. Application: Ideal for motor feeders and switchgear in manufacturing and process plants.Feature: Bottom feed with fusible protection. Business Impact: Simplifies wiring and enables quick fuse replacement, lowering maintenance time and exposure to live components. Application: Panel assemblies and enclosures where bottom-entry wiring is preferred.Feature: Interlock with charge-before-close mechanism and optional auxiliary contacts. Business Impact: Improves safety and prevents accidental energization, streamlining protection schemes and commissioning. Application: Automated lines requiring safe lockout behavior and expandable control logic.Feature: UL Listed certification with NEMA-rated enclosure compatibility. Business Impact: Supports regulatory compliance and flexible installation across varied facilities. Application: Plant rooms and outdoor or harsh environments needing robust enclosures (NEMA 1, 3R, 4, 12).Feature: Ground fault options, blown fuse detection, and single-phase protection (optional). Business Impact: Enhances fault detection, reduces unplanned outages, and aids preventive maintenance. Application: Critical power paths where early fault signaling preserves downstream equipment and uptime.
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FAQs
CB3033B120208KG supports bottom feed, three-pole configurations with fusible protection and ground fault options. It is compatible with UL safety requirements and enclosure ratings such as NEMA 1, 3R, 4, and 12, making it suitable for panelboards, switchgear, and control centers in industrial plants. Kirk provisions and auxiliary contacts are optionally available for extended protection schemes.
The switch offers ground fault protection with a control power transformer and optional ground fault relay, plus blown fuse detection. This combination enables rapid fault signaling, safer fault isolation, and reduced downtime, while maintaining reliable protection for both single-phase and three-phase circuits within low and medium-voltage systems.
Yes. With a system voltage rating of 208V and a three-pole configuration, CB3033B120208KG is well-suited for motor feeders and related control circuits in industrial facilities. The 3000A amperage rating supports high-current applications, while the bottom-feed design simplifies wiring and integration with existing switchgear.
CB3033B120208KG carries UL Listed certification, indicating conformance to recognized electrical-safety standards. This supports compliance with safety codes and inspection requirements. The product also lists compatible NEMA enclosure ratings (1, 3R, 4, 12), aiding engineers in selecting a device that fits specific environmental and installation conditions.
Maintenance focuses on regular inspection of interlock operation, fuse status, and contact reliability. The device’s high current rating (3000A) and optional fault-detection features reduce unplanned outages and downtime, delivering a favorable return on investment through improved uptime, safer operation, and streamlined maintenance workflows in industrial power-distribution schemes.