Compact, energy-efficient design: due to the use of a differential block of smaller size it saves space in the switchboards.
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Convenient assembly / disassembly without the use of tools.
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Improved arc blowout system: patent No. RU 139886.
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Increased strength in the area of conductors connection due to two additional rivets and monolithic faceplate.
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Indicator of actuation due to residual current: "Return" button. For AD12/14 - “AS” characteristic, for AD12M - “A” characteristic.
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LED indication of the voltage on the "Load" terminals and the built-in protection against long-term (265V; 0.5s) mains overvoltage (AD12M).
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New design of AD12 / 12M / 14 allows you to attach additional devices KS47, KSV47 without the use of screws.
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Soldering of the silver-containing composite increases the wear resistance of the contact group and reduces the contact resistance.
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The possibility of simultaneous connection of FORK bus and flexible conductor for the distribution of circuit power supply through the upper terminal clamps, as well as the possibility of connection via PIN bus.
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The presence of the indicator of contacts position.
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