Description
Mitsubishi SD-N50 Magnetic Contactor 50A 3-Pole 220V Coil THN-60 Overload Relay
The Mitsubishi SD-N50 is a 3-pole magnetic contactor used to switch motor and power circuits on and off via a low-voltage control signal to its coil. Contactors like this are commonly used in motor control centers, machine control panels, and industrial distribution equipment to start, stop, and protect three-phase loads. This unit is paired with a Mitsubishi THN-60 thermal overload relay, forming a standard combination motor starter/protection assembly.
Specifications & What's Included
- Mitsubishi SD-N50 magnetic contactor
- Current rating: 50A
- Configuration: 3-pole
- Coil voltage: 220V AC
- Includes Mitsubishi THN-60 thermal overload relay
- Includes UN-CV500 cover
- Includes UN-CZ501 cover
- Main terminals labeled 1/L1, 3/L2, 5/L3 (line side) and 2/T1, 4/T2, 6/T3 (load side)
- Clear protective cover over contactor mechanism
- Wire markers/labels attached from prior panel installation
Applications
Magnetic contactors like the SD-N50 are used throughout industrial control panels, motor control centers, and machine tool equipment to energize and de-energize three-phase motors, pumps, compressors, conveyors, and other AC loads. When combined with a thermal overload relay such as the THN-60, the assembly also provides overload protection, tripping the circuit if current draw exceeds the relay's set point. This type of contactor/overload combination is a standard building block in legacy and modern electrical distribution panels, OEM machinery, and industrial automation systems, and remains widely used for maintaining and repairing existing equipment.
This used Mitsubishi SD-N50 magnetic contactor was pulled from a larger control panel. It's rated 50A, 3-pole, with a 220V coil, and includes the Mitsubishi THN-60 thermal overload relay along with the UN-CV500 and UN-CZ501 covers. The clear cover and terminal blocks are in good cosmetic condition, with some wire labels still attached from its prior installation. It has not been bench-tested at our facility. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Mitsubishi Electric |
Model: |
SD-N50 |
MPN: |
SD-N50 |
Secondary Model: |
THN-60 |
Type: |
Magnetic Contactor |
SKU: |
53205 |
Seller Notes: |
Includes Mitsubishi THN-60 thermal overload relay and UN-CV500 & UN-CZ501 covers |
Country/Region of Manufacture: |
Japan |
Coil Voltage: |
220V AC |
Current Rating: |
50A |
Number of Poles: |
3 |
Phase: |
Three Phase |
Form Factor: |
Panel/DIN Mount Contactor |
Overload Relay Model: |
THN-60 |
Cover Part Numbers: |
UN-CV500, UN-CZ501 |
Condition: |
Used – Pulled from Working Environment |
Condition Notes: |
Used Mitsubishi SD-N50 magnetic contactor (50A, 3-pole, 220V coil), pulled from a control panel. Includes THN-60 overload relay and UN-CV500/UN-CZ501 covers. Good cosmetic condition, not bench-tested. Contact us with questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
