Siemens SIMATIC RF600 Series System Manual page 475

Engineering Conditions of Acceptability
For use only in or with complete equipment where the acceptability of the combination is
determined by ULLLC. When installed in an end-product, consideration must be given to the
following:
● Reference temperatures on the unit enclosure were measured during heating test. The
max obtained temperature with condition C at Enclosure I was 81.5 °C. See chapter
"Technical specifications (Page 470)" Additional Information for normal load condition
details.
● The unit is completely encapsulated. Potting improve mechanical and thermal properties
of the unit.
● The following Production-Line tests are conducted for this product: Electric Strength,
Earthing Continuity
● The end-product Electric Strength Test is to be based upon a maximum working voltage
of: Primary-Earthed Dead Metal: 300 Vrms, 342 Vpk; Primary-SELV: 300 Vrms, 613 Vpk
● The following secondary output circuits are SELV: 24 Vdc output of the unit.
● The following secondary output circuits are at non-hazardous energy levels: 24 Vdc
output.
● The following secondary output circuits are supplied by a Limited Power Source: 24 Vdc
output.
● The following output terminals were referenced to earth during performance testing:
Terminal P4 (-) during DETERMINATION OF WORKING VOLTAGE - WORKING
VOLTAGE MEASUREMENT TEST.
● The maximum investigated branch circuit rating is: 20 A
● The investigated Pollution Degree is: 2
● Proper bonding to the end-product main protective earthing termination is: Required
● An investigation of the protective bonding terminals has: Been conducted
● The following input terminals/connectors must be connected to the end-product supply
neutral:
Please see chapter "Mounting & connecting (Page 466)".
● The equipment is suitable for direct connection to: AC mains supply
● Output is supplied by circuit that complies with NEC Class 2 requirements (additional
evaluation acc. UL1310 has been conducted during the product investigation).
SIMATIC RF600
System Manual, 11/2018, J31069-D0171-U001-A21-7618
10.1 Wide-range power supply unit for SIMATIC RF systems
Accessories
475