SPECK Pumpen IN-VB 6-30 F [70/100] Overload protection device

SPECK Pumpen IN-VB 60-90-2 F [70/100] Overload protection device
Installation
20 EN 11|2018
5.6 Overload protection device
Standard motors 3 kW are equipped with three PTC resistors
Size Value
t
n
[°C] 140
R
20°C
[] ~20
R
tn -20°C
[] ~250
R
tn -5°C
[] <550
R
tn +5°C
[] >1330
R
tn +15°C
[] >4000
U
n
[VDC] 2.5 < U < 30
Protect the unit against overload using a thermally delayed overload protection device according to
IEC 947 and the local regulations.
Connect the PTC resistor with a thermal resistor.
5.7 Current
5.7.1 Nominal current
The motor’s permitted nominal current is specified on the motor’s name plate. The motor’s nominal
operating point can also be taken from this value and can be consulted for the protection of the motor.
5.7.2 Maximum current
The motor’s maximum current is specified as I
max
on the motor’s name plate. The motor’s maximum
operating point can be taken from this maximum current.
5.7.3 Connection plan
V~
M
1x 230 V
V~
M
3x 230 V 3x 400 V
230 V 230/400 V
400/690 V
LN
Z2 U2 V2
U1 V1 Z1
U1 V1 W1
W2 U2 V2
U1
V1
W1
W2
U2
V2
U1 V1 W1
W2 U2 V2
C
L2 L1 L3
L2 L1 L3
L2 L1 L3
WG56.00.006-P
Fig. 7

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