Multi 9 modular equipment complex from Schneider Electric
The complex of modular equipment Multi 9, produced by Schneider Electric, most fully ensures the fulfillment of the requirements for electrical installations of a comfortable home.
The main advantages of the Multi 9 complex are:
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a wide range of products (more than 2000 items) for protection of electric circuits, monitoring and control; — ensuring the selectivity of the protective operation;
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a wide range of designs in terms of limiting switching capability of electrical devices; — a wide range of operating temperatures;
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possibility of remote switching on and off of the devices; — high reliability of electrical devices of the entire series;
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availability of most of the equipment in Schneider Electric warehouses and distributors.
Below are brief specifications of the individual Multi 9 Series devices.
1. Automatic switches. They are used to switch and protect circuits from overload and short circuit. Rated currents from 0.5 to 125 A. Disconnecting curves B, C, D.Maximum switching capacity from 4.5 to 50 kA. Operating temperature from –30 to + 70C. Current Limit — Class 3.
2. Differential protection devices. They are used to protect people from electric shock during direct or indirect contact with conductive parts, to protect electrical installations from the risk of fire. Sensitivity from 10 to 3000 mA. The sensitivity level to the pulse is 250 A, the front is 8 ms, the length is 20 ms. Switching durability 20,000 cycles.
3. Combined fuses. They are used to switch and protect circuits from overload and short circuit. Rated currents from 2 to 25 A.
4. Surge suppressors. They are used to protect equipment from overvoltage in TN-S and TN-C networks. Provide status signaling. Operating temperature from –25 to + 60 ° C. Maximum impulse current Imax (8/20 ms) = 65 kA. Rated impulse current In (8/20 ms) = 20 kA. Maximum impulse voltage Upmax = 1.5 kV.
5. Impulse relays. They are used to remotely switch circuits on and off. Rated currents from 16 to 32 A. Control voltage 12–240 V AC and 6–110 kV DC. Switching endurance 200,000 cycles.
6. Contactors. They are used to remotely switch circuits on and off. Rated currents from 16 to 100 A. Control voltage 24 and 240 V AC. Operating temperature from –5 to + 60 ° C.
7. Load break switches. They are used to switch circuits under load. Rated currents from 20 to 100 A. Switching endurance 10,000–300,000 cycles.
8. Buttons and indicator lights. They are used to organize control through pulses, light indication… Operating current 20 A.Operating temperature from –20 to + 50 ° C. Service life 100,000 hours in continuous burning mode.
9. Electromechanical and electronic time relays. They are used to issue commands to close and open the circuit, depending on the time set by the user. Operating temperature from –10 to + 50 ° C.
10. Twilight switches. They are used to issue commands to close or open a circuit when a set illuminance threshold determined by a photocell is reached. Operating temperature from –10 to + 50 ° C. Illumination threshold 2-2000 lux.