16
Selection of Main Circuit Wiring Equipment and Standard Cable Sizes
3-core shield cable
(speed reference)
2-core shield cable
#20
* Molded case
Ampacity
Drive
circuit breaker (FLA x 1.25)
(MCCB)
Model
Amp
Other
Number
rating
(A)
signal
(A)
circuits
S5-5020
15
3
#14
S5-5030
15
4
#14
S5-5040
15
5
#14
S5-5060
15
8
#14
S5-5120
30
15
#14
S5-5160
35
22
#12
S5-5220
50
28
#10
S5-5270
60
34
#10
See next page for notes.
#18
** Typical cable size (AWG)
TOSHIBA
*
A customer supplied disconnect means must be provided in the motor branch circuit which
supplies power to the drive. It can be separate for use with customer supplied fuses or it can
be an integral part of a customer supplied 3-pole circuit breaker (see 1996 NEC Article 430-103
through 430-113). All drives in this series are rated for output short circuit fault currents of
200,000A. The selection of MCCB (molded case circuit breaker) for this table is in accordance
with 1996 NEC Article 430-51, 430-52, 430-152, and 240-6.
**
Wire sizing is based upon NEC table 310-16 or CEC Table 2 using 75 deg C cable, an ambient
of 30 deg C, cable runs for less than 300 FT., and copper wiring for not more than three
conductors in raceway or cable or earth (directly buried). The customer should consult the NEC
or CEC wire Tables for his own particular application and wire sizing.
***
Use two parallel conductors instead of a single conductor (this will allow for the proper wire
bending radius within the cabinet). Use separate conduits for routing parallel conductors.
This prevents the need for conductor derating (see note 3 page 17).
Turn off power to the drive before making any wiring
changes to the analog output circuits.
C A U T I O N
Use separate conduits for routing incoming power, power
to motor, and control conductors. Use no more than three
power conductors and a ground conductor per conduit.
C A U T I O N
Main power
and
motor load
Frequency command input,
frequency meter, ammeter
