ELAU PMC-2 - Mains Wiring

Instruction Manual PMC-2
BA * PMC-2 * EN * 01/98 Page 33
4.4.3 Mains
Fuse protection of mains
CAUTION
The PMC-2 is directly contacted to the 3 AC 400 Volt. A filter is integrated into
the PMC-2. The power supply has to be safed by fuses or a power safety
switch.
Nominal
current
PMC-2
Fuse Power safety switch
(e.g. Siemens)
Range Value
2 A 6 AT 3VU13 00-0ML00 6 ... 10 A 6 A
5 A 10 AT 3VU13 00-0ML00 6 ... 10 A 6 A
8 A 16 AT 3VU13 00-0MM00 10 ... 16 A 10 A
16 A 35 AT 3VU13 00-0MP00 16 ... 25 A 18 A
25 A 50 AT 3VU16 00-0MP00 22 ... 32 A 28 A
For several PMC-2 at one fault current protective gear the following formula applies:
I
1,2
*
Summe_
der_
Nennströme
N
=
Example:
1 PMC-2/2A + 1 PMC-2/5A + 1 PMC-2 /8A
1,2 * ( 2A + 5A + 8A ) = 18A
-> e.g. type 3VU13 00-0MP00, Siemens with 18A set value
Note:
For wiring observe cable cross-sections in relation to power.
Fault current protective gear
Due to the integrated mains filter the PMC-2 has regular leakage current of more than 3.5 mA.
This results in incompatibility with general fault current protective gear!
According to DIN VDE 0160, FI compatibility is not required if with connected units a warning sign
on the appliances and in the instruction manual points out the increased leakage current and one
of the following conditions is met:
• cross section of earth conductor at least 10 mm
2
Cu
• monitoring of the earth conductor by an installation which has an automatic switch-off
as consequence in case of error.
• placing of a second conductor, electrically parallel to the earth conductor, via separated
quandaries. This conductor has to fulfil for itself the requirements according to DIN
VDE 0100 part 540.
For further information please see DIN VDE 0160 (EN 590 178)!
Mains contactor
For the dimensioning of the mains contactor the rated powers of the connected PMC-2s must be
added and the next higher mains contactor chosen (applied category AC2 and AC3).
Example:
1 PMC-2/2A + 1 PMC-2/5A + 2 PMC-2 /8A
1 * 1.3kVA + 1 * 3.4kVA + 2 * 5.5kVA = 15.7kVA
-> e.g. TYPE 3TF45, Siemens with 18.5 kilowatt