ADL500 • Quick installation guide - Specifications and connection 7
1.4 Instruction for compliance with UL Mark (UL requirements), U.S. and Cana-
dian electrical codes
Short circuit ratings
ADL500 inverters must be connected to a mains capable of supplying a symmetrical short-circuit power of less than or
equal to “xxxx A rms.
( ASME17.5/CSA B44.1 ), for
each motor power rating (Pn mot in the manual) are shown in the table below.
Short current rating
Pn mot (kW) SCCR ( A )
1,1...37,3 5000
39....149 10000
Note! Drive mast be protected by semiconductor Fuse type as specified in the instruction manual.
Branch circuit protection
par. 5.1.
Environmental condition
degree 2. Additional details on operating temperatures can be found in section 4.1.
Wiring of the input and output power terminals
Use UL(if necessary). If you choose to crimp the terminals, use a
tool recommended by the terminal manufacturer.
Over-voltage control
For Canadian installations only (CSA requirements), the use of a COOPER BUSSMANN model SPP40SP3480PNG
DIN rail snubber (or equivalent) is recommended on the power supply line, upstream of the drive.
Minimum time required for safe DC-link voltage
Before removing drive cover in order to access internal parts, after mains disconnection wait for time as follow :
Drive size Safe time ( sec )
size 1.....5 300
Over-speed; over-load/current limit; motor overload
Drive incorporate over-speed, over-current/current limit, motor overload protection. Instruction manual specify degree
of protection and detailed installation instruction.
1.5 Disclaimer
Any remote connection functions shall be used only under adequate security conditions, in compliance with current
regulatory provisions and only by properly trained personnel. The evaluation of such conditions is up to the user.
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