Eaton CB4033B120480A Pringle bolted switch - UL Listed
Part Number: CB4033B120480A
Quick Summary
Eaton CB4033B120480A bolted pressure contact switch protects 3‑phase feeders in industrial control panels. For engineers facing unreliable trips and wiring mistakes, this unit delivers consistent fault isolation with a three‑pole, fusible design and clear status indicators. UL Listed certification and broad enclosure compatibility (NEMA 1, 3R, 4, 12) support safe installation across diverse environments; Eaton’s policy provides solid warranty coverage. The combination of 480 V system readiness, 4000 A amperage rating, and 120 V control voltage translates to reliable protection, reduced downtime, and lower maintenance costs in modern power distribution and motor control centers.
Product Information
Extended Description
CB4033B120480A Eaton: Eaton pringle bolted pressure contact switch,BFD with three on lights (does not trip),4000A,120V,Bottom feed,No ground fault,480V,Three-pole,Three-wire,Fusible
Product Name
Eaton pringle bolted pressure contact switch
Catalog Number
CB4033B120480A
UPC
782116950751
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
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
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
BFD with three normally on lights (does not trip)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Switching Devices
Eaton Specification Sheet - CB4033B120480A
High current capability with fusible protection translates into reliable short‑circuit containment and safer maintenance windows, helping plants minimize downtime during overloads and preventing collateral damage in feeders rated up to 480 V. This means contractors can design control gear with confidence, reducing spare parts inventory and accelerating commissioning in high‑demand applications. The 4000 A amperage rating paired with a 120 V control circuit enables straightforward integration into standard low‑voltage control schemes, simplifying wiring practices and improving integration with existing automation hardware. The three‑pole, three‑wire configuration lowers wiring errors and simplifies panel layouts, delivering faster, more accurate installation and commissioning in metal‑enclosed switchgear. Bottom feed and bottom fuse configuration streamline enclosure routing, improving accessibility for maintenance and inspections. Optional Ground Fault Relay, Blown Fuse Detection, and Single Phase Protection provide added resilience without redesigning panels, addressing common reliability concerns in critical process lines. The unit’s UL Listed status and broad NEMA enclosure compatibility support compliance with industry standards while enabling scalable expansion in plant power distribution, MCCs, and large motor feeders. This design also aligns with industry expectations for serviceability, long‑term availability of spare parts, and predictable lifecycle costs for industrial engineers and procurement teams.
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FAQs
CB4033B120480A uses a bottom feed with a three‑pole, three‑wire configuration and 480 V system compatibility. Plan for space to accommodate its 22.5 in depth, 32 in height, and 40 in width, and ensure your panel enclosure supports NEMA 1, 3R, 4, or 12 ratings. Use the 120 V control circuit to interface with standard control logic and include optional ground fault or blown fuse monitoring as needed.
Yes, CB4033B120480A is a three‑pole, three‑wire device designed for three‑phase feeders. It provides fusible protection with a charge‑before‑close mechanism, accommodating 480 V systems and 120 V control logic. This configuration supports high‑current applications while enabling safe maintenance practices in industrial environments.
The catalog notes indicate optional Ground Fault Relay, Blown Fuse Detection, Single Phase Protection, Kirk Provisions, and Auxiliary Contact Provisions are available. These options allow you to tailor protection to specific reliability and diagnostics requirements, reduce nuisance trips, and enhance fault visibility without redesigning the switchgear.
CB4033B120480A is UL Listed, ensuring safety compliance for industrial electrical equipment. It supports NEMA ratings including 1, 3R, 4, and 12, enabling installation across a range of indoor enclosure environments. Always verify enclosure compatibility and regional compliance requirements when selecting protective devices for your control panels.
With a 4000 A rating and fusible protection, CB4033B120480A minimizes fault propagation and reduces unplanned downtime. Its status indicators (three normally on lights) simplify diagnostics, while optional monitoring features improve fault detection, lowering maintenance labor and replacement costs. The long lifecycle and compatibility with standard 120 V control circuits help preserve asset value and shorten time‑to‑value in power distribution and motor control applications.