Key Specifications General Product Type: 3‑pole AC power contactor Model: TAE75‑30‑00 (also in variants with suffixes and coil codes) Poles: 3 (three main poles, normally open) Coil Voltage Type: DC control coil Rated Coil Voltage Range: 77–143 V DC Current & Power Ratings Rated Operational Current (AC‑3): ~75 A for motor loads at 400 V AC Rated Operational Current (AC‑1): ~125 A at 400 V AC Rated Operational Power (AC‑3): approx. 37–40 kW at typical industrial voltages Conventional Free‑Air Thermal Current: approx. 125 A Electrical Characteristics Rated Operational Voltage (Main Circuit): up to 690 V AC / 1000 V AC Rated Insulation Voltage (Ui): ~1000 V (IEC) Rated Impulse Withstand Voltage (Uimp): ~8 kV Making/Bre­aking Capacity (AC‑3): ~8×Ie make, ~8×Ie break Short‑Circuit Protective Devices: suitable with gG fuses (example 160 A) Coil Power Consumption: Higher pull‑in power (~120–250 W) and lower holding power (~1.7–6.5 W) Mechanical & Durability Mechanical Durability: ~5,000,000 operations Maximum Mechanical Switching Frequency: up to ~3600 cycles/hour Connecting Capacity: main conductors up to ~16–25 mm² depending on cable type Terminal Type: ring lug/screw connections for main poles Control & Operation DC coil operation with wide DC voltage range reduces sensitivity to coil supply variation Fast contact operate/release times typical for contactors Environmental & Installation Mounting: panel/DIN rail compatible in enclosure Degree of Protection: IP10 (basic housing) Ambient Operating Temperature Range: wide industrial range Suitable for three‑phase loads, power switching, motor control, and auxiliary power circuits Applications Starting and stopping three‑phase motors Power circuit switching (AC loads) controlled by DC logic Lighting and capacitor switching Industrial automation and control panels