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Operating instructions

K3G190-RB01-01

Translation of the original operating instructions

4. CONNECTION AND STARTUP

4.1 Mechanical connection

CAUTION
Risk of cutting and crushing when removing device
from packaging

→ Carefully remove the device from the packaging by grasping

hold of the frame. Never subject to any impact.

→ Wear safety shoes and cut-resistant safety gloves.

NOTE
Damage to the device from vibration

Bearing damage, shorter service life
→ The fan must not be subjected to force or excessive vibration

from sections of the installation. #If the fan is connected to air
ducts, the connection should be isolated from vibration, e.g.
using compensators or similar elements. #Ensure stress-free
attachment of the fan to the substructure.

;

The fan may not be handled in the area around the inlet nozzle during
transport and installation.
There is a risk of damage to the impeller.

;

Check the device for transport damage. Damaged devices are not to
be installed.

;

Install the undamaged device in accordance with your application.

CAUTION
Possible damage to the device

If the device slips during installation, serious damage can result.
→ Ensure that the device is securely positioned at its place of

installation until all fastening screws have been tightened.

●

The fan must not be strained on fastening.

4.2 Electrical connection

DANGER
Voltage on the device

Electric shock
→ Always connect a protective earth first.
→ Check the protective earth.

DANGER
Faulty insulation

Risk of fatal injury from electric shock
→ Use only cables that meet the specified installation

regulations for voltage, current, insulation material, capacity,
etc.

→ Route cables so that they cannot be touched by any

rotating parts.

DANGER
Electrical charge (>50 µC) between phase conductor and
protective earth connection after switching off supply
with multiple devices connected in parallel.

Electric shock, risk of injury
→ Ensure sufficient protection against accidental contact.

Before working on the electrical hookup, short the supply
and PE connections.

CAUTION
Voltage

The fan is a built-in component and has no disconnecting switch.
→ Only connect the fan to circuits that can be switched off with

an all-pole disconnection switch.

→ When working on the fan, secure the system/machine in

which the fan is installed so as to prevent it from being
switched back on.

NOTE
Water ingress into wires or cables

Water ingress at the customer end of the cable can damage the
device.
→ Make sure the end of the cable is connected in a dry

environment.

Only connect the device to circuits that can be switched off with
an all-pole disconnection switch.

4.2.1 Requirements

;

Check whether the information on the nameplate matches the
connection data.

;

Before connecting the device, make sure the power supply matches
the device voltage.

;

Only use cables designed for the current level indicated on the
nameplate.
For determining the cross-section, note the sizing criteria according
to EN 61800-5-1. The protective earth must have a cross-section
equal to or greater than that of the phase conductor.
We recommend the use of 105 °C cables. Ensure that the minimum
cable cross-section is at least
AWG 26 / 0.13 mm².

Protective earth contact resistance according to EN 60335

Compliance with the resistance specifications according to EN 60335 for
the protective earth connection circuit must be verified in the end
application. Depending on the installation situation, it may be necessary
to connect an additional protective earth conductor by way of the extra
protective earth terminal provided on the device.

4.2.2 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 < 50 mA

●

At the same time, the effective power in this operating state
(operational readiness) is typically < 2 W.

4.2.3 Residual current circuit breaker (RCCB)

If the use of a residual current device (RCD) is required in your
installation, only pulse-current sensitive and/or AC/DC-
sensitive residual current devices (type A 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

Item no. 50784-5-9970 · ENU · Change 96553 · Approved 2017-10-26 · Page 6 / 11

ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · [email protected] · www.ebmpapst.com

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