Input Ferrite Core Diameter; Screw Specifications And Recommended Wire Sizes; Main Circuit Terminals; Conduits - Fuji Electric FRENIC-HVAC User Manual

5.1.2.2

Input ferrite core diameter

The input ferrite core size is shown in the table below.
FRN007-015AR1■-2U
FRN015-030AR1■-4U
FRN020-025AR1■-2U
FRN040-050AR1■-4U
FRN030-040AR1■-2U
FRN060-075AR1■-4U
FRN050-060AR1■-2U
FRN100-125AR1■-4U
5.1.3

Screw specifications and recommended wire sizes

5.1.3.1

Main circuit terminals

The screw specifications and wire sizes are shown in Chapter 2, Section 2.3.2.1 "Main circuit
terminals."
Note that the terminal arrangements differ depending on the inverter types.
Use crimp terminals covered with an insulation sheath or with an insulation tube.
When the inverter power is ON, a high voltage is applied to the following terminals.
Main circuit terminals: L1/R, L2/S, L3/T, P(+), N(-), U, V, W, R0, T0, R1, T1, AUX-contact (30A,
30B, 30C, Y5A, Y5C)
Insulation level
Main circuit―Enclosure
Main circuit―Control circuit : Reinforced insulation (Overvoltage category III, Pollution degree 2)
Relay output―Control circuit : Reinforced insulation (Overvoltage category II, Pollution degree 2)
An electric shock may occur.
5.1.3.2

Control circuit terminals (Common to all inverter types)

The control circuit terminal arrangement, screw sizes, and tightening torque are shown in Chapter 2,
Section 2.3.2.2 "Control circuit terminals (Common to all inverter types)."
The control circuit terminals are common to all inverter types regardless of their capacities.
5.1.4

Conduits

To ensure NEMA/UL Type 1 rating, mount conduits on the wiring plate in wiring. The conduits
should be selected according to the number of wires to be connected and the wire size.
Chapter 2, Sections 2.4.1 "Conduits" give the sizes of the conduits to be applied when the wires of
the recommended sizes are used. Their sizes and mounting positions differ depending upon the
inverter capacity.
Inside diameter of input ferrite core
Inverter type
: Basic insulation (Overvoltage category III, Pollution degree 2)
5-7
5.1 Mounting and Wiring the Inverter
mm (inch)
31(1.22)
31(1.22)
39(1.54)
50(1.97)