Use Parameters

Rated voltage: The rated voltage of the power supply circuit is at least 690V AC (25...400Hz) or 225V DC. The voltage coil adopts transactions between 220 and 240 volts.

Rated current: The rated current under AC activation is 9 amperes ≤440 volts, horizontal. The rated current range used by AC-1 is 25 amperes ≤440 volts.

Rated short-time withstand current: 105 amperes for 10 seconds. When the temperature is below 40℃, it is 210 amperes for 1 second in the power supply circuit and 30 amperes for the remaining 10 minutes. In the signal circuit, the rated short-time withstand current is 100A for 1 second, 120A for 500 milliseconds, and 140A for 100 milliseconds. The control circuit voltage is 230 V AC, 50/60 Hz.

Conventional thermal current: 25 A for power circuits at <60 °C; 10 A for other non-power circuits at <60 °C.

Mechanical and electrical life: 15 million times for mechanical life, 600,000 times for electrical life at 25 A at rated voltage not exceeding 440 V under AC-1 conditions, and 2 million times at 9 A at voltage level less than 440 V under AC-3 conditions.

Resistance: In the power circuit, the average resistance is 2.5 mO at Ith 25 A and 50 Hz. Rated insulation voltage: 690 V for circuits connected to power and signals.

Rated impulse withstand voltage: 6 kV.

Function

Control power supply: Schneider LC1D09M7C can control electrical circuits from on to off, mainly motors, heaters, machine tools, various power devices, etc. It is suitable for controlling larger currents and voltages with high control efficiency.

Overload and short-circuit protection: Its rated short-time withstand current and parameters provide certain overload and short-circuit protection for the line. When the current is abnormal, it can alleviate equipment damage to a certain extent and protect the line and related equipment.

Low-voltage tripping protection: This function quantitatively guarantees that when the voltage is lower than a certain predetermined value, it will automatically trip and cut off the line to avoid damage to the equipment due to low-voltage operation.

Transmission signal and control: A device used to control the main power supply line, in conjunction with other control elements, outputs transmission and control signals in the control system to achieve more complex control functions and logical operations.

Application Scope

Schneider LC1D09M7C relays are widely used in the industrial field. In the industrial production process, they are used to control the production line, including the start and stop of motors such as conveyors, working machines, and packaging machines to ensure the normal progress of the production process; in building automation, they are used to control the power supply of lighting systems, air conditioning systems, and elevator systems to improve energy utilization efficiency and management level and ensure building management; in the power distribution circuit, they are used to control the connection and disconnection of the power supply to ensure the safety and stability of the power grid; in addition, they can also be used in water treatment, mining, transportation and other industries to control the operation of various systems and equipment.