ABB CIRCUIT SHIELD 49/50 Instructions Manual - Page 13

Browse online or download pdf Instructions Manual for Relays ABB CIRCUIT SHIELD 49/50. ABB CIRCUIT SHIELD 49/50 14 pages. Overcurrent relay for motor protection

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ABB CIRCUIT SHIELD 49/50 Instructions Manual
m
1.2.1.1-4
Page 13
Notes:
i
CONTROL
VDLTAliE
PER REL"Y
AflllTINli.
l
G
0
8
1
'f
'f
+
RESET
l l
iii; iis
Figure 7:
Motor Overcurrent Relay
tr
•
TEST
SET
3
I
AMPSf fTIME:Rf
I
STDP
1
*
*
Resistor supplied with Relay
Typical Test Connections
1. For single-phase testing as shown, adjust current to 1.5 times desired test current level.
2. Momentary current closure across terminals 15 to 16 fully resets memory circuit of the ( 49) overload function.