Proper Usage - Rittal SK 3105 Serie Instrucciones De Montaje

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 cur-
rent may be up to 6 A. A slow-blowing fuse
(gL) is therefore imperative. IEC 6100-4-5
requires that the customer provides safety
devices for impulse voltages of more than
1000 V. The double connection terminal per-
mits the cascading of several heaters and
thus simplifies wiring. A separate thermostat
(SK 3110.000) or a digital thermostat
(SK 3114.200) 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).
Caution!
Overvoltage peaks of more than
2 kV may destroy the unit.

3.1 Proper usage

Rittal enclosure heaters were developed and
designed in accordance with the state of the
art and the recognised rules governing tech-
nical safety. Nevertheless, if used improperly,
they may pose a threat to life and limb or
cause damage to property. The heater is only
designed to heat components and to be
installed inside housings and enclosures.
The manufacturer will not be liable for any
damages caused as a result of improper use,
or for incorrect assembly, installation or use.
All risk is borne solely by the user.
6
2
) or stranded wire
4. Safety notes
● When carrying out the electrical installation,
it is important to observe all valid national
and regional regulations as well as the
provisions of the responsible power supply
company.
● Electrical installation must only be carried
out by a qualified electrician who is
responsible for compliance with the existing
standards and regulations.
● Use only original spare 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.
Caution!
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 1-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 incorrect connec-
tion will invalidate the manufacturer's guaran-
tee. No liability will be assumed for any
damage arising from such situations.
Rittal enclosure heater assembly instructions