USED MITSUBISHI TH-T18

The Mitsubishi Electric TH-T18 is a 3-pole thermal overload protection relay (TOR) belonging to the TH-T series, T18 frame size. It is designed for motor overload and locked-rotor protection in industrial applications and is compatible with Mitsubishi S-T and SD-T series electromagnetic contactors. The relay features adjustable trip current settings, screw-clamp terminals with finger protection, and a built-in ambient temperature compensator for consistent performance across varying environmental conditions.
Specification
Value
Brand
Mitsubishi Electric
Model / Part Number
TH-T18
Product Type
Thermal Overload Relay (TOR)
Series / Family
TH-T Series
Frame Size
T18
Number of Poles
3 (3P)
Auxiliary Contacts
1NO + 1NC
Rated Insulation Voltage (UI)
690V AC
Rated Operational Voltage (UE)
550V AC
Application Voltage
220–240V / 380–440V (3-phase)
Frequency Range
0 (DC) to 400 Hz
Trip Class
Class 10A
Current Setting Range
Adjustable — varies by heater suffix (0.12A to 8A+ available)
Connection Type
Screw-clamp with finger protection
Reset Method
Manual / Automatic (selectable)
Ambient Temperature Compensator
Built-in
Operating Temperature
-10°C to +40°C
Compatible Contactors
S-T10, S-T12, S-T20, SD-T12, SD-T20
Single Unit Mounting Accessory
UT-HZ18 (IEC 35mm DIN rail or screw mount)
Terminal Cover
Standard equipment (included)
Compliance Standards
JIS C8201-4-1, IEC/EN 60947-4-1
Weight (approx.)
110–130 g (varies by heater rating)
We warranty all items for 30 days from date of purchase.