Eurotherm 590+ Series, Руководство по эксплуатации продукта, Страница: 266 / 308

12-6
Certification for the Converter
590+ Series DC Digital Converter
Requirements for UL Compliance
Motor Overload Protection
Note: An external motor overload protective device must be provided by the installer.
The maximum internal overload protection level (current limit) is 150% for 30 seconds and
200% for 10 seconds.
Motor overload protection is provided by means of the thermal device in the motor winding.
This protection cannot be evaluated by UL, hence it is the responsibility of the installer and/or
the local inspector to determine whether the overload protection is in compliance with the
National Electrical Code or Local Code requirements.
Branch Circuit/Short Circuit Protection Requirements
The controller requires branch circuit protection. Branch circuit protection requirements must be
in accordance with the latest addition of the National Electrical Code, NEC/NFPA-70.
UL Recognized Component (JFHR2) semiconductor fuses with current ratings and maximum
I
2
t ratings as specified below must be used in the controller. Refer to the table below for the
recommended fuse manufacturer and part number.
Controller Rating
Controller Rating Controller Rating
Controller Rating Input Line Semiconductor Fuses
Input Line Semiconductor Fuses Input Line Semiconductor Fuses
Input Line Semiconductor Fuses
Ratings Ratings Ratings Ratings Part No. Gould Part No. Gould Part No. Gould Part No. Gould
(HP) 500V (HP) 500V (HP) 500V (HP) 500V (A) (A) (A) (A) (Vac) (Vac) (Vac) (Vac) (A) (A) (A) (A) IIII 2 22 2 t (A t (A t (A t (A 2 22 2 s) s) s) s) or equivalent* or equivalent* or equivalent* or equivalent*
7.5 15 500 31.3 750 A60Q35
20 35 500 31.3 750 A60Q35
20 40 500 31.3 750 A60Q35
30 70 500 71.6 1300 A50QS80-4R
40 70 500 71.6 1300 A50QS80-4R
50 110 500 111.8 2860 A50QS125-4R
60 110 500 111.8 2860 A50QS125-4R
75 165 500 156.6 7540 A50QS175-4R
100 165 500 156.5 7540 A50QS175-4R
Part No. Part No. Part No. Part No.
Bussmann or
Bussmann or Bussmann or Bussmann or
equivalent*
equivalent* equivalent* equivalent*
200 380 660 550 135000 170M6809
300 500 660 700 300000 170M6811
400 725 660 900 670000 170M6813
500 830 660 1000 945000 170M6814
900 1580 660 2 x 1000 945000 170M6814
* Other UL Recognized Component (JFHR2) semiconductor fuses may be used in the
controller provided that the voltage, ampere and I
2 t ratings shown above are not
exceeded.
Note: Semiconductor fuses are acceptable as branch circuit short-circuit protection for
the solid-state motor controllers only.
Table 12-1 Short Circuit Protection Requirements
Short Circuit Ratings
These products are suitable for use on a circuit capable of delivering not more than (the value
shown in Table 12-2) RMS Symmetrical Amperes, 500V maximum.