13
IDEC SmartRelay Manual
2 IDEC SmartRelay installation and
wiring
General guidelines
Please note the following guidelines for the installation and
wiring of your IDEC SmartRelay :
• Always ensure that the wiring of your IDEC SmartRelay is
compliant with current rules and standards. Also, conform
with all national and regional regulations when you install
and operate the devices. For information on standards
and regulations that apply to your specific case, contact
your local authorities.
• Always switch off power before you wire or install/remove
a module.
• Always use cables with an appropriate conductor
cross-sections for the relevant current. You can wire the
IDEC SmartRelay with cable conductor cross-sections
from 1.5 mm
2
to 2.5 mm
2
; see Chapter 2.3.
• Do not exceed the screw torque of the terminals. The
maximum torque is: 0.5 Nm, see Chapter 2.3.
• Keep the cabling as short as possible. If longer cables are
necessary, you should use shielded versions. You should
always route your cables in pairs: i.e. one neutral conduc-
tor plus one phase conductor or signal line.
• Always keep separate:
- The AC wiring
- High-voltage DC circuits with high-frequency switching
cycles
- Low-voltage signal wiring.
- The EIB bus cable may also be laid in parallel to other
signal lines.
• Ensure that the wires are installed with an appropriate
strain relief.
• Provide a suitable lightning surge arrester for cables in-
stalled in hazardous areas.
Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com