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Fuses
FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
THE CORRECT TYPE AND RATING.
The AC-powered CRS-280L is outfitted with two power supplies, each containing two fuses – one
each for line and neutral connections. These are contained within the body of each IEC power inlet
connector, behind a small plastic flap.
•
For 230 volt AC operation, use T2.5A, 20mm fuses.
•
For 115 volt AC operation, use T5.0A fuses, slow blow, P/N 5ASB-IEC.
The optionally DC-powered CRS-280L is outfitted with two power supplies. Each power
supply contains one fuse installed into a fuse holder.
•
For 48 volt DC operation, use T6.25A 3AG fuses.
Environmental
The CRS-280L must not be operated in an environment where the unit is exposed to extremes of
temperature outside the ambient range 0 to 50°C, precipitation, condensation, or humid
atmospheres above 95% RH, altitudes (non-pressurized) greater than 2000 meters, excessive dust
or vibration, flammable gases, corrosive or explosive atmospheres.
Operation in vehicles or other transportable installations that are equipped to provide a stable
environment is permitted. If such vehicles do not provide a stable environment, safety of the
equipment to EN60950 may not be guaranteed.
Installation
The installation and connection to the line supply must be made in compliance to local or national
wiring codes and regulations.
The CRS-280L is designed for connection to a power system that has separate ground, line and
neutral conductors. The equipment is not designed for connection to a power system that has no
direct connection to ground.
The CRS-280L is shipped with line inlet cables suitable for use in the country of operation. If it is
necessary to replace these cables, ensure the replacement has an equivalent specification.
Examples of acceptable ratings for the cable include HAR, BASEC and HOXXX-X. Examples of
acceptable connector ratings include VDE, NF-USE, UL, CSA, OVE, CEBEC, NEMKO, DEMKO,
BS1636A, BSI, SETI, IMQ, KEMA-KEUR and SEV.
Preface
CRS-280/280L IF Switch for 1:N Redundancy
iv
Revision -
MN-PCB-4300A
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