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Modular units

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DE53572<br />

DE53573<br />

DE53574<br />

DE53575<br />

Characteristics of<br />

the functional <strong>units</strong><br />

P1 type<br />

P2 type<br />

P3 type<br />

P5 type<br />

X<br />

O<br />

X<br />

O<br />

O X<br />

P<br />

AX<br />

P<br />

O<br />

X<br />

X<br />

O<br />

O<br />

MT20240EN<br />

Interlocks<br />

b to prevent the closing of an earthing switch if the switch of the other unit<br />

has not been locked in the “open” position.<br />

b to prevent on-load operation of the disconnector unless the switch is locked “open”<br />

b to prevent the closing of the earthing switches unless the disconnector and<br />

the switch are locked “open”.<br />

b to prevent on-load operation of the disconnector unless the switch is locked “open”<br />

b to prevent the closing of the earthing switches with the unit energised, unless<br />

the disconnector and the switch are locked “open”<br />

b to allow off-load operation of the switch.<br />

b to prevent the closing of the earthing switch of the incoming unit unless<br />

the disconnector and the switch is locked “open”.<br />

Legend for key-type interlocks:<br />

no key free key captive key panel or door<br />

82 AMTED398078EN.indd

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