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Factory-Recommended Branch Circuit Protection for UL Listing

Use branch circuit protection to protect against short circuits and to maintain compliance with UL61800-5-1. Yaskawa recommends connecting semiconductor protection fuses on the input side for branch circuit protection. Refer to Single-Phase 200 V Class, Three-Phase 200 V Class, and Three-Phase 400 V Classfor more information.

  • 200 V Class

    Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than 31,000 RMS and not more than 240 Vac when there is a short circuit in the power supply.

  • 400 V Class

    Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than 31,000 RMS and not more than 480 Vac when there is a short circuit in the power supply.

The built-in short circuit protection of the drive does not provide branch circuit protection. The user must provide branch circuit protection as specified by the National Electric Code (NEC), the Canadian Electric Code, Part I (CEC), and local codes.

Single-Phase 200 V Class

Table 1. Factory-Recommended Branch Circuit Protection: Single-Phase 200 V Class

Drive Model

Maximum Applicable Motor Output

kW (HP)

Time Delay Fuse

Semiconductor Protection Fuse Rated Current

Manufacturer: EATON/Bussmann

ND

HD

Class J, CC, and T Fuse

Rated Current

A

Model

Fuse Rated Current

A

B001

0.2 (1/6)

0.1 (1/6)

2

FWH-25A14F

25

B002

0.4 (1/4)

0.2 (1/4)

3.5

FWH-25A14F

25

B004

0.75 (3/4)

0.4 (1/2)

9

FWH-60B

60

B006

1.1 (1.5)

0.75 (1)

15

FWH-80B

80

B010

2.2 (3)

1.5 (2)

20

FWH-100B

100

B012

3.0 (3)

2.2 (3)

30

FWH-125B

125

B018

-

3.7 (5)

40

FWH-150B

150

Three-Phase 200 V Class

Table 2. Factory-Recommended Branch Circuit Protection: Three-Phase 200 V Class

Drive Model

Maximum Applicable Motor Output

kW (HP)

Time Delay Fuse

Semiconductor Protection Fuse Rated Current

Manufacturer: EATON/Bussmann

ND

HD

Class J, CC, and T Fuse

Rated Current

A

Model

Fuse Rated Current

A

2001

0.2 (1/6)

0.1 (1/6)

3

FWH-25A14F

25

2002

0.4 (1/4)

0.2 (1/4)

3.5

FWH-25A14F

25

2004

0.75 (3/4)

0.4 (1/2)

6

FWH-25A14F

25

2006

1.1 (1.5)

0.75 (1)

10

FWH-25A14F

25

2008

1.5 (2)

1.1 (1.5)

12

FWH-70B

70

2010

2.2 (3)

1.5 (2)

15

FWH-70B

70

2012

3.0 (4)

2.2 (3)

20

FWH-70B

70

2018

3.7 (5)

3.0 (4)

30

FWH-90B

90

2021

5.5 (7.5)

3.7 (5)

35

FWH-90B

90

2030

7.5 (10)

5.5 (7.5)

50

FWH-100B

100

2042

11 (15)

7.5 (10)

70

FWH-150B

150

2056

15 (20)

11 (15)

90

FWH-200B

200

2070

18.5 (25)

15 (20)

110

FWH-200B

200

2082

22 (30)

18.5 (25)

125

FWH-225A

225

Three-Phase 400 V Class

Table 3. Factory-Recommended Branch Circuit Protection: Three-Phase 400 V Class

Drive Model

Maximum Applicable Motor Output

kW (HP)

Time Delay Fuse

Semiconductor Protection Fuse Rated Current

Manufacturer: EATON/Bussmann

ND

HD

Class J, CC, and T Fuse

Rated Current

A

Model

Fuse Rated Current

A

4001

0.4 (1/2)

0.2 (1/2)

3

FWH-40B

40

4002

0.75 (1)

0.4 (3/4)

3.5

FWH-40B

40

4004

1.5 (2)

0.75 (2)

7

FWH-50B

50

4005

2.2 (3)

1.5 (3)

9

FWH-70B

70

4007

3.0 (4)

2.2 (3)

12

FWH-70B

70

4009

3.7 (5)

3.0 (4)

15

FWH-90B

90

4012

5.5 (7.5)

3.7 (5)

20

FWH-90B

90

4018

7.5 (10)

5.5 (10)

30

FWH-80B

80

4023

11.0 (15)

7.5 (10)

40

FWH-100B

100

4031

15.0 (20)

11.0 (15)

50

FWH-125B

125

4038

18.5 (25)

15.0 (20)

60

FWH-175B

175

4044

22.0 (30)

18.5 (25)

70

FWH-200B

200

4060

30.0 (40)

22.0 (30)

100

FWH-200B

200