Mitsubishi S-N800AB AC Magnetic Contactor, 3Pole 630A 440kW 2NO2NC Multi Optional Coil Voltage

Mitsubishi S-N800AB AC Contactor

Mitsubishi S-N800AB is the largest-frame AC magnetic contactor in the Mitsubishi S-N series lineup.

This unit delivers ultra-stable switching for extreme high-power industrial three-phase motor loads.

Available Optional Coil Voltages (Front Display)

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

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

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

Industrial Application Coverage

This heavy-duty magnetic contactor serves super-large motor loads in heavy industrial plants.

It controls high-capacity water pumps, industrial blowers and ventilation systems.

The industrial contactor supports massive processing and heavy logistics machinery systems.

It acts as core power switching component for large industrial distribution cabinets.

Core Technical Specifications

Electrical Performance Parameters

Operation type: AC coil operated non-reversing industrial contactor

Rated operational current: 630A at maximum 690V AC three-phase operation

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

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

AC-3 power rating: 220kW(240V), 440kW(440V), 500kW(690V)

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

Electrical service life: 500,000 standard AC3 load switching cycles

Mechanical & Structural Data

Mounting method: Professional screw fixed installation for extreme load stability

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

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

Wiring mode: Heavy-duty screw-clamp terminal connection design

Protection grade: IP00 industrial standard open protection structure

Reinforced frame: Vibration-resistant structure for harsh industrial scenarios

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

Unique Product Strengths

Mitsubishi S-N800AB supports multi AC coil voltages for global industrial power matching.

This magnetic contactor handles 630A ultra-high current for extreme heavy-load operation.

Premium twin-contact structure improves conductivity and long-term operational stability.

Complete 2NO2NC auxiliary contacts enrich interlock and remote signal feedback functions.

Rugged mechanical design minimizes faults in complex industrial working conditions.

Professional Installation & Usage Tips

Install Mitsubishi S-N800AB on rigid flat surfaces to resist strong operational vibration.

Select the exact AC coil voltage to prevent coil burnout and permanent circuit damage.

Install high-grade surge suppressors to stabilize ultra-high-power switching circuits.

Perform regular terminal inspections to maintain secure and stable circuit connection.