Eaton CB3033B1204805 Pringle bolted pressure contact switch - UL Listed
Part Number: CB3033B1204805
Quick Summary
The Eaton CB3033B1204805 pringle bolted pressure contact switch delivers high-capacity control for 480 V power distribution in industrial settings. When downtime or misapplied protection threatens productivity, its fusible protection and 1 NO-1 NC configuration help minimize fault exposure and simplify maintenance. UL Listed certification supports safety and reliability, while rugged NEMA-rated enclosures (NEMA 1, 3R, 4, 12) tolerate harsh environments. Bottom-feed, three-pole design integrates smoothly with modern switchgear and low-voltage distribution, delivering predictable performance and long-term value for engineering and procurement teams. Optional features such as Ground Fault Relay and Auxiliary Contacts tailor protection to specific line conditions.
Product Information
Extended Description
CB3033B1204805 Eaton: Eaton pringle bolted pressure contact switch,3000A,1NO-1NC,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB3033B1204805
UPC
782116951840
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
No ground fault
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
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB3033B1204805
Selling Policy 25-000 - Distribution and Control Products and Services
Feature 1: 3000 A amperage rating and 480 V system voltage → Business impact: handles high-load feeders and large motor circuits with fewer devices in parallel, reducing panel complexity and installation time. Application: heavy-duty switchgear and motor control centers. Feature 2: 1 NO-1 NC contact configuration → Business impact: flexible control logic for start/stop sequences and fault isolation, lowering wiring errors and maintenance costs. Application: process lines and multi-motor drives. Feature 3: Bottom feed and fusible protection → Business impact: simplifies wiring and enhances protection coordination, enabling quicker fault clearance and safer de-energization. Application: bottom-fed panels in harsh industrial environments. Feature 4: NEMA-rated enclosure compatibility and UL Listed → Business impact: ensures regulatory compliance and environmental durability, reducing field modifications. Application: harsh plants, outdoor or semi-enclosed switchgear. Feature 5: Optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Auxiliary and Kirk provisions → Business impact: scalable protection suite that minimizes unplanned outages and supports retrofit projects. Application: expansion of existing systems with minimal downtime.
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FAQs
CB3033B1204805 uses a bottom-feed approach and a three-pole arrangement with 1 NO-1 NC contacts. Plan for a footprint of 22.5 in (length) by 32 in (height) by 40 in (width) and a total weight of 430 lb. Ensure the mounting surface supports bottom-entry wiring and space for wiring harnesses. Verify enclosure rating and available auxiliary/protection options before retrofit or new installation.
Key ratings include an amperage of 3000 A, a system voltage of 480 V, and a control voltage of 120 V. The device supports up to 480 V maximum and 480 V voltage rating, with NEMA ratings including 1, 3R, 4, and 12, and it uses fusible protection. These specs make it suitable for high-capacity industrial feeders and switchgear assemblies.
Yes. It carries UL Listed certification and is compatible with rugged NEMA-rated enclosures (NEMA 1, 3R, 4, 12), which offer protection in dusty, damp, or chemical environments. Bottom-feed wiring and a bolted contact design add mechanical robustness, while optional features such as Ground Fault Relay and auxiliary provisions expand protection in demanding facilities.
The CB3033B1204805 is UL Listed, indicating compliance with recognized safety standards. It also aligns with established NEMA enclosure ratings (1, 3R, 4, 12) for environmental protection. Optional provisions (Ground Fault Relay, Blown Fuse Detection, Auxiliary Contacts) support tailored compliance in retrofit projects and diverse installation scenarios.
Warranty is Eaton Selling Policy 25-000: one year from the date of installation or eighteen months from shipment, whichever occurs first. For maintenance, follow standard preventive checks on fusible protections, verify ground fault or auxiliary options if installed, and keep spares for critical protection components. The combination of high amperage capacity and reliable UL-listed protection translates to reduced downtime and improved total cost of ownership over the equipment life.