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APPENDIX
App. - 3
App. 4 Compliance with UL/CSA standard
Use the UL/CSA standard-compliant model of servo motor. For the latest information of compliance, contact
your local sales office.
Unless otherwise specified, the handling, performance, specifications, etc. of the UL/CSA standard-
compliant models are the same as those of the standard models.
(1) Flange size
The servo motor is compliant with the UL/CSA standard when it is mounted on the flanges made of
aluminum whose sizes are indicated in the following table.
The rated torque of the servo motor under the UL/CSA standard indicates the continuous permissible
torque value that can be generated when it is mounted on the flange specified in this table and used in
the environment of 0 °C to 40 °C ambient temperature. Therefore, to conform to the UL/CSA standard,
mount the servo motor on a flange with a heat radiating effect equivalent to that of this flange.
Servo motor Flange size
[mm]
HF-KN HF-SN
250 × 250 × 6 13/23
250 × 250 × 12 43
52/102
152
300 × 300 × 12 73
300 × 300 × 20 202/302
(2) Selection example of wires
To comply with the UL/CSA standard, use UL-approved copper wires rated at 75 ˚C for wiring.
The following table shows wires [AWG] rated at 75 ˚C.
Wire [AWG]
Servo motor
1) U/V/W/
2) B1/B2
HF-KN13
HF-KN23
HF-KN43
HF-KN73
14 (Note) 16 (Note)
HF-SN52
HF-SN102
HF-SN152
HF-SN202
14
HF-SN302 12
16
Note. For fabricating extension cables