Mitsubishi Electric 700 Series Installation Manualline page 20

APPENDIX
Use the inverter under the conditions of overvoltage category II (usable regardless of the earth condition of the power
supply), overvoltage category III (usable with the earthed-neutral system power supply) and pollution degree 2 or lower
specified in IEC664.
– To use the inverter FR-A 740 EC of 00930 or more (IP00) under the conditions of pollution degree 2, install it in the
enclosure of IP 2X or higher.
– To use the inverter FR-A 740 EC under the conditions of pollution degree 3, install it in the enclosure of IP54 or higher.
– To use the inverter FR-A 740 EC of 00770 or less (IP20) outside of an enclosure in the environment of pollution
degree 2, fix a fan cover with fan cover fixing screws enclosed.
00083, 00126
On the input and output of the inverter, use cables of the type and size set forth in EN60204 Appendix C.
The operating capacity of the relay outputs (terminal symbols A1, B1, C1, A2, B2, C2) should be 30VDC, 0.3A. (Relay
outputs are basically isolated from the inverter internal circuit.)
Control circuit terminals on page 4 are safely isolated from the main circuit.
Environment
Ambient temperature
The maximum temperature depends on the setting
Ambient humidity
Maximum altitude
A.1.4 Machine directive
The frequency inverter itself is not a machine in the spirit of the EU machine directive. The start up of the frequency
inverter in a machine is prohibited so long until it has been confirmed that the entire machine complies with the provisions
of Directive 89/392/EWG (machine directive).
16
Fan cover fixing
screws
Fan cover
Fan
00170 bis 00380
During Operation
-10°C to +50°C (non-freezing) for
selected overload capability 150 %,
200 % (initial setting) or 250 %
-10°C to +40°C (non-freezing) for
selected overload capability 120 %
of the parameter 570.
90% RH or less
1000m
Fan cover fixing
screws
Fan cover
Fan
00470, 00620
In Storage
−20°C to +65°C
90% RH or less
1000m
Fan cover
fixing screws
Fan cover
Fan
During Transportation
−20°C to +65°C
90% RH or less
10000m