Rittal SK 3105.310 Instrucciones De Montaje página 8

Notes
3. Mains connection
EN
The heater must be connected to a power
supply of the voltage stated on the rating
plate via the quick-connect terminals.
The unit must be connected to the mains
via an isolating device which ensures at least
3 mm contact opening when switched off.
Electrical connections must be made using
solid wire (max. 2.5 mm
with wire end ferrules. Due to the specific
characteristics of the PTC heater element,
the momentary switch-on current may be up
to 6 A. A slow-blowing fuse (gL) is therefore
imperative.
IEC 6100-4-5 requires that the customer pro-
vides safety devices for impulse voltages of
more than 1000 V. The double connection
terminal permits the cascading of several
heaters and thus simplifies wiring. A sepa-
rate thermostat (SK 3110.000) must be used
to control the enclosure temperature.
The humidity of the air in the enclosure can
be controlled by incorporating a hygrostat
(SK 3118.000).
Attention!
Overvoltage peaks of more than 2 kV may
destroy the unit.
6
2
) or stranded wire
4. Safety notes
The electrical connection and any necessary
repairs must always be entrusted to author-
ised specialist personnel.
Use only original replacement parts!
The heater must not be touched while
switched on: Risk of burns from hot surfaces!
The heater must be allowed to cool for
approx. 15 minutes after switching off:
Risk of burns from hot surfaces!
5. Scope of supply
1 heater
1 set of assembly instructions
Assembly parts
6. Warranty
This unit is covered by a one-year guarantee
from the date of supply, subject to correct
usage. Within this period, the returned unit
will be repaired in the factory or replaced free
of charge. Unauthorised utilisation or incor-
rect connection will invalidate the manufac-
turer's guarantee. No liability will be assumed
for any damage arising from such situations.
RITTAL enclosure heater assembly instructions