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M3G112-GA32-51
4.2.2 Supply connection and fuses
Assignment of supply cable cross-sections and their required fuses (line
protection only, no equipment protection).
Nominal
Fuse
voltage
VDE
UL
3/PE AC
16 A
15 A
380-480
VAC
3/PE AC
20 A
20 A
380-480
VAC
3/PE AC
25 A
25 A
380-480
VAC
* AWG = American Wire Gauge
4.2.3 Reactive currents
Because of the EMC filter integrated for compliance with EMC
limits (interference emission and immunity to interference),
reactive currents can be measured in the supply line even
when the motor is at a standstill and the line voltage is switched
on.
The values are typically in the range < 250 mA
●
At the same time, the effective power in this operating state
●
(operational readiness) is typically < 5 W.
4.2.4 Residual current circuit breaker (RCCB)
If the use of a residual current device (RCD) is required in your
installation, only AC/DC-sensitive residual current devices
(type B or B+) are permissible. As with variable frequency
drives, residual current devices cannot provide personal safety
while operating the device. When the device power supply is
switched on, pulsed charging currents from the capacitors in the
integrated EMC filter can lead to the instant tripping of residual
current devices. We recommend the use of residual current
circuit breakers (RCCB) with a trip threshold of 300 mA and
delayed tripping (super-resistant, characteristic K).
4.2.5 Leakage current
For asymmetrical power systems or if a phase fails, the
leakage current can increase to a multiple of the nominal value.
4.2.6 Locked-rotor protection
Due to the locked-rotor protection, the starting current (LRA) is
equal to or less than the nominal current (FLA).
Item no. 50782-5-9970 · ENU · Change 94899 · Approved 2018-03-02 · Page 7 / 11
ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com
Operating instructions
Automatic
Cable
Cable
circuit
cross-
cross-
breaker
section
section
VDE
mm²
*AWG
C16A
1.5
16
C20A
2.5
14
C25A
4.0
12
4.3 Connection in terminal box
4.3.1 Preparing cables for connection
Only strip the cable as far as necessary, ensuring that the cable gland is
sealed and there is no strain on the connections. For tightening torques,
see Chapter 3.1 Product drawing.
NOTE
Tightness and strain relief are dependent on the cable
used.
→ This must be checked by the user.
4.3.2 Connecting wires to terminals
WARNING
Live terminals and connections even with device
switched off
Electric shock
→ Wait five minutes after disconnecting the voltage at all poles
before opening the device.
; Remove the cap from the cable gland.
Only remove caps where cables are fed in.
; Equip the cable glands with the seals provided in the terminal box.
; Route the wire(s) (not included in scope of delivery) into the terminal
box.
; First connect the "PE" (protective earth).
; Connect the wires to the corresponding terminals.
Use a screwdriver to do so.
When connecting, ensure that no wire ends fan out.
; Seal the terminal box.
4.3.3 Cable routing
Water must be prevented from reaching the cable gland along the cable.
NOTE
Damage caused by moisture penetration.
Moisture can penetrate into the terminal box if water is
constantly present at the cable glands.
→ To prevent the constant accumulation of water at the cable
glands, the cable should be routed in a U-shaped loop
wherever possible.# If this is not possible, a drip edge can
be produced by fitting a cable tie directly in front of the cable
gland for example.
When routing the cable, make sure that the cable glands are located at
the bottom. The cables must always be routed downward.
4.4 Factory settings
Factory settings made for the device by ebm-papst.
Mode
PWM control
Group address
1
Fan/device address
1
Max. PWM / %
100
Min. PWM / %
0
Save set value to
Yes
EEPROM
Set value requirement
Analog
Direction of action
Positive (heating)
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