Burkert Type 0789 - Manual (Page 9)

9
Technicaldata/Safeoperation
5.1.4. model with a terminal box
DanGEr!
risk of explosion!
• Only permanently laid cables and wiring may be inserted.
• The operator must provide suitable stress relief.
• Wires with an outside diameter of 6 to 13 mm may be used.
Observe the maximum thermal loading of the cables or wires to
be inserted.
• The inserted break-off seal must be matched to the diameter of
the cable or wire.
• The rated cross-section of the cable or wire strands must be at
least 0.75 mm² and may not exceed 2.5 mm².
• The screws for fixing the cover of the terminal box must be tight-
ened with a torque of 1 Nm (± 5 %).
The solenoid coils may also be executed with a terminal box, with
or without fuse/contactor (to separate Design Type Inspection Cer-
tificate) as desired.
For protection against inadvertent opening of the cover, the latter
bears the marking:
Open only when the voltage is switched off!
6. Technical daTa / safe
OperaTiOn
6.1. conformity
The coil type 0770/0780 is compliant with the EC Directives according
to the EC Declaration of Conformity.
6.2. standards
Refer to the EC type approval test certificate and/or the EC Declaration
of conformity for the applicable standards verifying conformity with the
EC directives.
6.3. Operating conditions
DanGEr!
risk of explosion by excedance technical data!
Exceeding the technical data indicated on the type label increases
the explosion risk!
• Never exceed the technical data indicated on the type label!
6.3.1. maximum permissible ambient
temperature range
Please observe the maximum permissible ambient temperature range
given under Operating conditions of the coils for each type!
Version maximum permissible ambient temperature
range
07xx -30 °C ... +55 °C
english
PTB 03 ATEX 1030 X