Operating instructions
W3G800-GV01-91
`
II 2G Ex db eb ib IIB T3 Gb
IBExU14ATEX1123 X /03
`
Translation of the original operating instructions
54001-4-8670
5.2 Electrical connection
DANGER
Voltage on the device
Electric shock
→ Always connect a protective earth first.
→ Check the protective earth.
DANGER
Explosion hazard
→ To dissipate electrostatic charges, the fan must be grounded
via the grounding point on the fan housing.
→ Operation of the fan without grounding to dissipate
electrostatic charges is not permitted.
NOTE
The minimum permissible temperature for connection of
the cables to the terminals is -35°C.
The terminals may be damaged.
→ Only connect the cables at temperatures above -35°C.
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 come into contact with
rotating parts.
→ Only use cables that are designed for the current level
indicated on the nameplate and approved for use in
potentially explosive atmospheres.
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
Device malfunctions possible
Route the device's control lines separately from the supply line.
→ Maintain the greatest possible clearance.
Recommendation: clearance > 10 cm (separate cable
routing)
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.
5.2.1 Requirements
;
Check whether the data on the nameplate match 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; see Chapter 5.3.3 Connecting wires to terminals. 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.
;
Only use cables approved for the corresponding ambient temperature.
;
Do not subject the cables to impermissible strain.
;
Establish a safe protective earth connection.
;
Ensure that the degree of protection is maintained. The seals in the
terminal box from ebm-papst have been inspected for suitability.
The motor must be connected in accordance with EN 60079-14.
Ground conductor contact resistance according to EN 61800-5-1
Compliance with the impedance specifications according to EN 61800-5-
1 for the protective earth connection circuit must be verified in the end
application. Depending on the circumstances of installation, it may be
necessary to connect an additional protective earth conductor to the extra
protective earth terminal on the device. The protective earth terminal is
on the housing and has a ground conductor symbol and a bore hole.
5.2.2 Supply connection and fuses
Assignment of supply cable cross-sections and their required fuses (line
protection only, no equipment protection).
Nominal
voltage
Fuse
Automatic
circuit
breaker
Wire
cross-
section
Wire
cross-
section
VDE
UL
VDE
mm²
*AWG
3/PE AC
380-440
VAC
16 A
15 A
C16A
1.5
16
3/PE AC
380-440
VAC
20 A
20 A
C20A
2.5
14
3/PE AC
380-440
VAC
25 A
25 A
C25A
4.0
12
* AWG = American Wire Gauge
5.2.3 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 less than 250 mA.
●
At the same time, the effective power in this operating state
(operational readiness) is typically < 5 W.
Item no. 54001-5-9970 · ENU · Change 272968 · Approved 2022-11-23 · Page 10 / 17
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