Bender RC48N-70-10 A, Operating Manual

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19 TGH1397en/11.2006
5.3 Setting the alarm relay operating mode
You can set the operating mode for the alarm relay via a bridge between the NC-NC contacts
on the RC48N-935:
5.4 Factory settings
Bridge open N/O operation
Bridge closed N/C operation (factory setting)
RC48N-70-10A RC48N-70-50A
Filter:
DIP switch “Filter off / on” on on
Response range:
DIP switch “I
Δ
n x 10 / x 1”
x10 => 1...10 A x1 => 0.1...1 A
Response delay t/s for alarm I
Δ
n 0.1 s (left-hand stop) 0.1 s (left-hand stop)
Residual current response value I
Δ
n/A 0.1 A (left-hand stop) 0.1 A (left-hand stop)
x factor 100 => 10 A
Response value for voltage drop U
Δ
/V at
the neutral earthing resistor NER
20 V (left-hand stop) 20 V (left-hand stop)
Operating principle of alarm relay:
NC-NC bridge closed (N/C operation) closed (N/C operation)
Response value for interruption of the neu-
tral earthing resistor (permanent setting) > 2 k
Ω
> 2 k
Ω
Response delay for interruption of NER and
voltage drop at the NER
(permanent setting) 5 s 5 s
RC48N-935
A2 A1
U+ R
K 11 14 21 L A1
T
A2
U-
12 22 24
GFA NRA C1 C2
G1 G
NC NC