Eaton MDL3700W Molded Case Circuit Breaker - UL Listed
Part Number: MDL3700W
Quick Summary
MDL3700W Molded Case Circuit Breaker provides reliable protection for motor control and power distribution in industrial facilities. Users often contend with nuisance tripping, mismatched protection schemes, and challenging retrofits during panel upgrades. UL Listed and CSA Certified protections reinforce regulatory compliance and safe installation in harsh industrial environments, while Series C performance delivers predictable response to faults. Designed for easy integration in Eaton Series C panels with a fixed thermal and fixed magnetic trip, this device supports 700 A at 600 Vac / 250 Vdc, reducing downtime and maintenance costs. In short, it combines robust protection with installation flexibility to improve overall equipment effectiveness.
Product Information
Extended Description
MDL3700W Eaton: Eaton Series C complete molded case circuit breaker, MDL-frame, MDL, Complete breaker, Fixed thermal, fixed magnetic trip, Three-pole, 700A, 600 Vac, 250 Vdc, 65 kAIC at 240 Vac, 50 kAIC at 480 Vac, Without terminals, 50/60 Hz
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
MDL3700W
UPC
786685882987
Product Length/Depth
18.25 in
Product Height
8 in
Product Width
10.75 in
Product Weight
31.08 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 CSA Certified
Amperage Rating
700 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T186
Circuit breaker type
MDL
Circuit breaker frame type
Complete breaker
Series
Series C
Terminals
Without terminals
Frame
MDL
Interrupt rating
65 kAIC at 240 Vac 50 kAIC at 480 Vac
Number of poles
Three-pole
UL listed 100%-rated molded case circuit breakers
UL listed 100%-rated molded case circuit breakers
UL listed 100%-rated molded case circuit breakers
StrandAble terminals product aid
StrandAble terminals product aid
StrandAble terminals product aid
StrandAble terminals product aid
StrandAble terminals product aid
StrandAble terminals product aid
StrandAble terminals product aid
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Circuit breakers explained
Circuit breakers explained
Series C G-Frame molded case circuit breakers time current curves
Series C G-Frame molded case circuit breakers time current curves
Series C G-Frame molded case circuit breakers time current curves
Series C G-Frame molded case circuit breakers time current curves
Series C G-Frame molded case circuit breakers time current curves
Feature: High interrupt rating supports critical feeders and equipment protection. Business Impact: Reduces the risk of arc faults and equipment damage, improving uptime in demanding facilities. Application: Suitable for distribution panels and motor control centers that require dependable fault interruption. Feature: Fixed thermal and fixed magnetic trip (T186). Business Impact: Delivers predictable, fast protection against overloads and short circuits, minimizing nuisance trips. Application: Industrial automation panels where stable trip characteristics simplify protection coordination. Feature: Three-pole MDL frame with complete breaker, without terminals. Business Impact: Streamlines installation and future terminal upgrades, lowering commissioning time and inventory complexity. Application: Panel assemblies and retrofit projects where terminal options are added post-installation. Feature: 700 A rating at 600 Vac and 250 Vdc. Business Impact: Supports high-load feeders and motor circuits with strong fault clearing capabilities, reducing unplanned outages. Application: Heavy-duty motor starters and line-side protections in manufacturing plants. Feature: Certifications and standards (UL Listed, CSA Certified). Business Impact: Ensures regulatory compliance, safer field maintenance, and easier supplier qualification. Application: Required in many industrial and commercial facilities for compliance documentation. Feature: Dimensions and weight (18.25 in L Ă— 10.75 in W Ă— 8 in H; ~31.08 lb). Business Impact: Predictable footprint for panel design and replacement planning, speeding up installation. Application: Retrofit and new panel builds where space planning is critical.
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FAQs
MDL3700W uses the Series C MDL frame and is designed for Eaton Series C panels and compatible motor control centers. It is specified as a three-pole complete breaker without terminals, meaning terminal adapters or lugs are added as required by the installation. Check panel bus ratings and protection coordination to ensure proper fit and performance.
Amperage rating is 700 A, voltage rating is 600 Vac and 250 Vdc. The trip type is T186, interrupt rating is 65 kAIC at 240 Vac and 50 kAIC at 480 Vac, with a three-pole configuration. Frame and series are MDL and Series C, respectively, and terminals are without terminals.
Yes. The three-pole MDL3700W with fixed thermal and magnetic trip is well-suited for motor control centers and distribution panels where reliable motor protection and rapid fault interruption are essential. Its 700 A rating and high interrupt capacity help minimize motor damage and downtime.
The MDL3700W is UL Listed and CSA Certified, providing recognized safety and compliance credentials for electrical equipment installed in North American facilities.
Eaton provides a standard warranty of 25-000, one year from the date of installation or eighteen months from the date of shipment, whichever occurs first, supporting coverage during commissioning and early operating life.