Protect Drive At Failure; Factory Recommended Branch Circuit Protection - YASKAWA GA700 Technical Manual

High performance type; 200 v class: 0.4 to 110 kw; 400 v class: 0.4 to 355 kw

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Protect Drive at Failure

To maintain compliance with UL61800-5-1, execute branch circuit protection when a short occurs in the internal

circuit. Yaskawa recommends connecting a semiconductor protective type fuses to the input side for branch circuit

protection. Refer to

NOTICE: Do not energize the power or operate equipment soon after a fuse blows or the circuit breaker (ELCB) trips. Check the

condition of cable wiring and peripheral devices to identify the root cause. If the root cause cannot be determined, do not turn on

the power or operate equipment. Contact Yaskawa Support immediately.

• 200 V class

The drive is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes

and 240 Vac during short circuit of the power supply, when protected by fuses as specified in this document.

• 400 V class

The drive is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes

and 480 Vac during short circuit of the power supply, when protected by fuses as specified in this document.

Drive's built-in short circuit protection does not provide branch circuit protection. Branch circuit protection must

be provided in accordance with the NEC (National Electric Code) the CEC (Canadian Electric Code, Part I), and

any additional local codes.

Three-Phase 200 V Class

Table 2.27 Factory Recommended Drive Branch Circuit Protection (Normal Duty)

Approval pending. Contact Yaskawa or your nearest sales representative.

Fuses with larger rated currents are recommended for application with repetitive operations.

YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual

for the recommended fuses.

Maximum Applicable Motor

Semiconductor Fuse Model

Input Current Rating

Manufacturer: EATON/