Mitsubishi S-T80 AC Magnetic Contactor, 3Pole 52A 45kW 2NO2NC Multi Optional Coil Voltage

Mitsubishi S-T80 AC Contactor

Mitsubishi S-T80 is a high-capacity mid-frame magnetic contactor in the premium S-T series.

This S-T80 unit delivers stable heavy-load switching for large industrial three-phase motor systems.

Available Optional Coil Voltages (Front Display)

AC100V (100–127V wide range for low-voltage industrial AC control circuits)

AC200V (200–240V wide range for mainstream global industrial AC systems)

AC400V (380–440V wide range for high-voltage three-phase power equipment)

Unique Product Strengths

Mitsubishi S-T80 adopts reinforced mid-frame structure for superior heavy-load tolerance.

This contactor supports three universal AC voltages for flexible global industrial deployment.

Built-in 2NO2NC auxiliary contacts enable complex interlock and signal feedback control.

Optimized twin-contact design enhances conductivity and long-term operational stability.

Durable mechanical structure reduces maintenance frequency and operational downtime.

Core Technical Specifications

Electrical Performance Parameters

Operation type: AC coil operated non-reversing industrial contactor

Rated AC-3 operational current: 52A at maximum 690V three-phase operation

Main pole configuration: 3-pole heavy-duty industrial main circuit structure

Auxiliary contact layout: 2NO + 2NC multi-functional signal control contacts

AC-3 power rating: 22kW(240V), 45kW(440V), 45kW(690V)

Operating frequency: 50Hz and 60Hz dual universal frequency compatibility

Mechanical service life: 5,000,000 no-load switching operation cycles

Electrical service life: 150,000 standard AC3 load switching cycles

Mechanical & Structural Data

Mounting method: Standard 35mm DIN rail and screw fixed dual installation

Operating temperature range: -10°C to +40°C standard ambient environment

Wiring mode: Stable screw-clamp terminal connection industrial design

Protection grade: IP20 finger-safe and dust-proof safety protection structure

Product dimensions: 88mm width, 106mm height, 106mm depth

Unit weight: 0.75kg per standalone contactor unit

Compliance standards: EN60947-4-1, IEC60947-4-1, JIS C8201-4-1

Industrial Application Coverage

This magnetic contactor controls high-power industrial pumps and large ventilation fan systems.

It provides reliable power switching for heavy-duty processing and automated packaging machinery.

The industrial contactor fits standard automation panel layouts for cabinet assembly.

It serves stable circuit control for large-scale factory automation production lines.

Professional Installation & Usage Tips

Mount Mitsubishi S-T80 firmly on DIN rails to avoid operational vibration faults.

Select matched AC coil voltage to prevent coil overheating and circuit damage.

Install surge suppressors to filter transient voltage spikes in control circuits.

Inspect terminal connections regularly to maintain stable long-term operation.