Eaton MDL3350S01 Molded Case Circuit Breaker - UL Listed
Part Number: MDL3350S01
Quick Summary
MDL3350S01 molded case circuit breaker provides reliable overcurrent protection for three-phase motor feeders in industrial controls. In complex electrical systems, selecting a breaker that balances voltage ratings, fault current, and trip characteristics can slow project timelines. UL Listed certification confirms safety compliance and supports regulatory alignment for panel builds; the Series C family is designed for predictable coordination across 240/480 Vac challenges. With its MDL frame and fixed thermal-magnetic trip, this device enables quick installation, reduced spare-parts cost, and scalable protection for machine rooms, control panels, and line side feeders.
Product Information
Extended Description
MDL3350S01 Eaton: Eaton Series C complete molded case circuit breaker, MDL-frame, MDL, Fixed thermal, fixed magnetic trip, Three-pole, 350A, 600 Vac, 250 Vdc, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, 12-24 Vac/dc same side w/ left pigtail, 50/60 Hz
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
MDL3350S01
UPC
782116035915
Product Length/Depth
0.01 in
Product Height
0.01 in
Product Width
0.01 in
Product Weight
0.01 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
Amperage Rating
350 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T186
Circuit breaker type
MDL
Circuit breaker frame type
Complete breaker
Series
Series C
Shunt trip
12-24 Vac/dc left pigtail opposite
Frame
MDL
Frequency rating
50 to 60 Hz
Interrupt rating
50 kAIC at 480 Vac 65 kAIC at 240 Vac
Number of poles
Three-pole
Application of Tap Rules to Molded Case Breaker Terminals
Application of Tap Rules to Molded Case Breaker Terminals
Application of Tap Rules to Molded Case Breaker Terminals
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Motor protection circuit breakers product aid
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Circuit Breakers Explained
Circuit Breakers Explained
Series C J-Frame molded case circuit breakers time current curves
Series C J-Frame molded case circuit breakers time current curves
Series C J-Frame molded case circuit breakers time current curves
Series C J-Frame molded case circuit breakers time current curves
Series C J-Frame molded case circuit breakers time current curves
Feature: 350 A amperage rating → Business impact: High-load motor protection with precise trip coordination reduces nuisance trips and enables scalable protection for large conveyors, pumps, and presses in manufacturing. Application: Three-phase motor drives and automated lines benefit from reliable protection without frequent panel interventions. Feature: 600 Vac / 250 Vdc voltage ratings → Business impact: Safe operation across mixed voltage environments, enabling use with drives and DC control circuits while maintaining compliance. Application: Industrial panels and equipment enclosures with mixed voltage sources gain streamlined acceptance. Feature: 3-pole MDL frame with fixed thermal and magnetic trips → Business impact: Predictable protection and fast fault clearing improve machine uptime and equipment safety. Application: Panelboards and machine controls in high-demand applications. Feature: Shunt trip option 12–24 Vac/dc left pigtail → Business impact: Remote safety shutdown supports compliance with interlock and emergency stop requirements. Application: Safety-critical lines, conveyors, and robotic cells. Feature: 50/60 Hz compatibility and UL Listed certification → Business impact: Global deployment feasibility with reduced regulatory risk and easier audits. Application: International manufacturing facilities and distributed control systems. Feature: Interrupt ratings of 65 kAIC at 240 Vac and 50 kAIC at 480 Vac → Business impact: Higher fault-current resilience reduces downtime and equipment damage during short-circuit events. Application: Heavy-duty motors and feeders in high-energy environments. Feature: Compact MDL frame and Series C compatibility → Business impact: Space-saving installation and simpler part management lowers total cost of ownership. Application: New panel builds and upgrades in space-constrained control rooms.
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FAQs
MDL3350S01 uses Eaton's Series C MDL frame and is designed for straightforward drop-in replacement or new installations within Series C molded case circuit breaker panels. It is a three‑pole device with fixed thermal and magnetic trips, and supports a left-side shunt trip with 12–24 Vac/dc, enabling quick integration with common panel layouts. With 50/60 Hz operation and UL Listed certification, it aligns with standard industrial control panels.
MDL3350S01 is rated for 350 A and up to 600 Vac, 250 Vdc, with an interrupt rating of 65 kAIC at 240 Vac and 50 kAIC at 480 Vac. It uses a T186 trip type in an MDL frame and provides three poles; shunt trip option is 12–24 Vac/dc, with operation at 50–60 Hz.
Yes. With a three-pole MDL frame, 350 A rating, and Series C design, MDL3350S01 provides robust motor protection for 3-phase power circuits in dynamic industrial environments. Its fixed thermal-magnetic trips coordinate against short circuits and overloads, while the optional shunt trip enables remote safety shutdown. It supports 50/60 Hz operation and can fit standard motor control panels.
MDL3350S01 carries UL Listed certification, ensuring compliance with recognized safety standards for molded case circuit breakers. The product supports 50/60 Hz operation and is designed for 600 Vac and 250 Vdc applications within industrial controls. For project teams, UL Listing simplifies approvals and supplier qualification within regulated electrical installations, and industry-specific standards where applicable.
Maintenance for the MDL3350S01 is straightforward due to its fixed thermal-magnetic trip and UL Listed status, reducing field adjustments. The robust interrupt ratings (65 kAIC/240 Vac, 50 kAIC/480 Vac) support higher fault tolerance, potentially lowering downtime and service costs. In panel upgrades, its compact MDL frame saves space and simplifies inventory, improving total cost of ownership.