DCREG2 15P0059B3
DCREG4 USER MANUAL
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3.29 UL-APPROVED FUSES
UL-approved semiconductor R/C Special purpose fuses which are recommended for the DCREG drives,
are listed in the table below.
In multiple cable installations, install one fuse per phase (NOT one fuse per conductor).
Fuses suitable for the protection of semiconductors produced by other manufacturers may be used,
provided that:
• Their current ratings are lower than or equal to those listed in the table below;
• Their voltage ratings are higher than or equal to those listed in the table below;
• are nonrenewable UL-Listed Cartridge Fuses (UL Category P/N JFHR2) or UL Recognized
External Semiconductor Fuses;
• are of the type specifically approved also with reference to the Canadian Standard (UL Category
P/N JFHR8).
Listed Class CC fuses are provided in the supply line to control card and field
supply terminals.
Fuse ratings shall be as indicated below:
Control Card Supply Fuses – maximum 1 A, minimum 500 Vac.
Field Supply Fuses – maximum 20 A, minimum 500 Vac.
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