Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 458

APPENDIX
(3) USA/Canada compliance
This servo amplifier is designed in compliance with UL 508C and CSA C22.2 No. 274.
(a) Installation
The minimum cabinet size is 150% of the MR-JN servo amplifier's volume. Also, design the cabinet
so that the ambient temperature in the cabinet is 55 °C or less. The servo amplifier must be installed
in a metal cabinet. Additionally, mount the servo amplifier on a cabinet that the protective earth
based on the standard of IEC/EN 60204-1 is correctly connected. For environment, the units should
be used in open type (UL 50) and overvoltage category shown in table in App. 5.7.1. The servo
amplifier needs to be installed at or below of pollution degree 2. For connection, use only copper
wires.
(b) Short-circuit current rating (SCCR)
Suitable For Use On A Circuit Capable Of Delivering Not More Than 100 kA rms Symmetrical
Amperes, 500 Volts Maximum.
(c) Overload protection characteristics
The MR-JN servo amplifiers have servo motor overload protective function. (It is set on the basis (full
load current) of 120% rated current of the servo amplifier.)
(d) Over-temperature protection for motor
Motor Over temperature sensing is not provided by the drive.
Integral thermal protection(s) is necessary for motor. Refer to App. 5.3 for details of the proper
connections.
(e) Branch circuit protection
For installation in the United States, branch circuit protection must be provided, in accordance with
the National Electrical Code and any applicable local codes.
For installation in Canada, branch circuit protection must be provided, in accordance with the
Canada Electrical Code and any applicable provincial codes.
(4) South Korea compliance
This product complies with the Radio Wave Law (KC mark). Please note the following to use the
product.
이 기기는 업무용 (A 급 ) 전자파적합기기로서 판매자 또는 사용자는 이 점을 주의하시기 바라며 , 가정외의
지역에서 사용하는 것을 목적으로 합니다 .
(The product is for business use (Class A) and meets the electromagnetic compatibility requirements.
The seller and the user must note the above point, and use the product in a place except for home.)
App. - 13