Eaton MDL3400WA0105S2905 MCCB - UL Listed Series C

Part Number: MDL3400WA0105S2905
MDL3400WA0105S2905
Manufacturer
Eaton
Part number
MDL3400WA0105S2905
Category

Quick Summary

Eaton Series C complete molded case circuit breaker provides reliable protection for motor drives and control panels. Engineers often struggle with nuisance trips and poor coordination when selecting breakers for mixed-voltage panels. UL Listed certification anchors safety and reliability, while the MDL frame supports a 400 A rating with 600 Vac and 250 Vdc surges and a fixed thermal/magnetic trip. This combination streamlines specification, procurement, and installation across global facilities, reducing engineering changes and field calls. The Series C MCCB also integrates with remote trip or auxiliary signaling in modern control architectures, delivering clearer status and safer operation. By standardizing on this device, manufacturers gain predictable protection, lower total cost of ownership, and easier maintenance cycles.

Product Information

Extended Description

MDL3400WA0105S2905 Eaton: Eaton Series C complete molded case circuit breaker, MDL-frame, MDL, Fixed thermal, fixed magnetic trip, Three-pole, 400A, 600 Vac, 250 Vdc, no term., 1A-1B same side w/left pigtail, 110-127 Vac GF or 208-240 Vac same side w/right pigtail
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
MDL3400WA0105S2905
UPC
782116035922
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
400 A
Voltage rating
600 Vac, 250 Vdc
Trip Type
T186
Circuit breaker type
MDL
Circuit breaker frame type
Complete breaker
Auxiliary switch
1A-1B same side with left pigtail
Series
Series C
Shunt trip
110-240 Vac or 110-125 Vdc right pigtail same side
Terminals
Without terminals
Frame
MDL
Frequency rating
50 to 60 Hz
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 Power metering and monitoring with Modbus RTU product aid Power metering and monitoring with Modbus RTU product aid Power metering and monitoring with Modbus RTU product aid Power metering and monitoring with Modbus RTU product aid Power metering and monitoring with Modbus RTU product aid Power metering and monitoring with Modbus RTU product aid Power metering and monitoring with Modbus RTU product aid Breaker service centers Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2 Circuit breakers explained Circuit breakers explained MOEM MCCB product selection guide MOEM MCCB product selection guide MOEM MCCB product selection guide MOEM MCCB product selection guide MOEM MCCB product selection guide Implementation of arc flash mitigating solutions at industrial manufacturing facilities
Feature: MDL Series C three-pole molded case MCCB with fixed thermal and magnetic trip. Business Impact: Delivers precise overcurrent protection for main feeders and branch circuits, reducing nuisance trips and protecting critical loads. Application: Ideal for control panels and motor control centers in manufacturing lines needing reliable, quick-replace protection. Feature: High interrupt rating of 65 kAIC at 240 Vac and 50 kAIC at 480 Vac. Business Impact: Withstands severe fault currents without compromise, safeguarding equipment and reducing downtime. Application: Power distribution sections in harsh industrial environments. Feature: Optional shunt trip wiring (110-240 Vac or 110-125 Vdc) on the right-side pigtail. Business Impact: Enables remote isolation for safety interlocks and PLC interfaces, improving operator safety. Application: Machine guarding, line protection, and emergency shutdown schemes. Feature: Auxiliary switch 1A-1B on the same side with left pigtail. Business Impact: Provides local status indication and simplifies wiring to control logic, cutting installation time. Application: Automation panels requiring clear trip/status signaling. Feature: 50–60 Hz compatibility and overall compact MDL frame with terminals built without provided terminals. Business Impact: Facilitates global deployment and easy busbar or field-terminated integration, lowering mounting depth and installation cost. Application: OEM builds and retrofit projects prioritizing space efficiency and standardization.

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FAQs

The MDL3400WA0105S2905 is designed for panel assembly with an MDL frame and requires compatible busbar connections or external terminals since it ships without built-in terminals. Ensure correct three-pole alignment, secure mounting to the panel chassis, and use approved terminal hardware or busbar adapters to maintain full UL compliance and fault protection performance.
This MCCB is rated for 400 A continuous current, with a voltage rating of 600 Vac and 250 Vdc. It provides a protective trip via fixed thermal and magnetic elements (T186). The interrupt ratings are 65 kAIC at 240 Vac and 50 kAIC at 480 Vac, and it operates at standard industrial frequencies of 50–60 Hz.
Yes. The MDL3400WA0105S2905 offers a shunt trip option wired on the right-side pigtail, compatible with 110–240 Vac or 110–125 Vdc signals. This enables remote isolation for safety interlocks, PLC-based control, or emergency shutdown sequences, enhancing overall machine safety and compliance.
The unit is UL Listed, ensuring compliance with recognized safety standards for molded case circuit breakers. It is well-suited for industrial control panels, motor control centers, and distribution boards in mid-to-large scale facilities requiring reliable protection for 3-pole applications at 400 A with remote trip and status signaling features.
Warranty is Eaton’s standard period of one year from installation or eighteen months from shipment, whichever comes first. For maintenance, rely on UL-listed protection, inspect trip settings and signaling wiring during regular panel servicing, and keep spare auxiliary switches and shunt-trip components in stock to minimize downtime during servicing.