Mitsubishi Electric 800 Series Assembly & Installation Manuallines page 52

APPENDIX
A.2 Instructions for UL and cUL
The FR-A800 series (690 V class) are UL certified with the maximum voltage of 600 V.
(Conforming standard UL 61800-5-1, CSA C22.2 No.274-13)
A.2.1 General precautions
The bus capacitor discharge time is 10 minutes. Before starting wiring or inspection, switch power off, wait for more than 10 min-
utes, and check for residual voltage between terminal P/+ and N/- with a meter etc., to avoid a hazard of electrical shock.
A.2.2 Installation
The below types of inverters have been approved as products for use in enclosure and approval tests were conducted under the
following conditions.
Design the enclosure so that the surrounding air temperature, humidity and ambience of the inverter will satisfy the specifica-
tions. (Refer to page 2.)
Wiring protection
Provide the appropriate fuse in accordance with the table below.
Inverter model
FR-A870-02300, 02860
A.2.3 Important note
The operating capacity of the relay outputs (terminal symbols A1, B1, C1, A2, B2 and C2) should be 30 V DC, 0.3 A. (Relay output
has basic isolation from the inverter internal circuit.)
A.2.4 Wiring of the power supply and motor
Refer to the National Electrical Code (Article 310) regarding the allowable current of the cable. Select the cable size for 125% of the
rated current according to the National Electrical Code (Article 430).
For wiring the input (R/L1, S/L2, T/L3) and output (U, V, W) terminals of the inverter use UL approved copper wires (rated at 75°C).
A.2.5 Short circuit ratings
Suitable for use in a circuit capable of delivering not more than 100 kA rms symmetrical amperes, 600 V maximum.
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WARNING
Fuse type
UL Recognized High Speed
Model Manufacturer
170M4014 Bussmann
Rating
500 A, 700 V AC