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Moeller Wiring Manual 02/05 - Klockner Moeller Parts

Moeller Wiring Manual 02/05 - Klockner Moeller Parts

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Specifications, Formulae, Tables<br />

Protective measures<br />

<strong>Moeller</strong> <strong>Wiring</strong> <strong>Manual</strong> <strong>02</strong>/<strong>05</strong><br />

Protective devices and conditions for disconnection to IEC 364-4-1/VDE 0100 Part 410<br />

Type of<br />

distribution<br />

system<br />

*a Table, Page 9-41<br />

TT system<br />

Protection with System circuit Description<br />

up to now<br />

Insulation<br />

monitoring<br />

device<br />

Overcurrent<br />

protection<br />

device<br />

–<br />

Feed back<br />

to<br />

protective<br />

multiple<br />

earthing<br />

Conditions for indication/disconnection<br />

RA X Id F UL (1)<br />

ZS X Ia F Uo (2)<br />

RA = Earthing<br />

resistance of all<br />

conductive parts<br />

connected to an earth<br />

Id = Fault current in<br />

the event of the first<br />

fault with a negligible<br />

impedance between a<br />

phase conductor and<br />

the protective<br />

conductor or element<br />

connected to it<br />

UL = Maximum<br />

permissible touch<br />

voltage*:<br />

F 50 V AC,<br />

F 120 V DC<br />

For Immediate Delivery call KM<strong>Parts</strong>.com at (866) 595-9616<br />

9-39<br />

L1<br />

L2<br />

L3<br />

PE<br />

9

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