Siemens SINUMERIK MCU1720, Equipment Manual

Page: 87 / 102

Technical specifications
10
10.1 Technical Data
Table 10-1 Safety-related data
Protection class I (protective conductor) according to EN 61800-5-1
Degree of protection accord‐
ing to EN 60529
IP20 (Open Type)
1)
Approvals CE, cULus, RCM, KC, EAC
Fire protection level UL 94 V-1
2)
Declarations of conformity Directive 2004/108/EC (EMC)
Pollution degree 2
Cooling Open-circuit ventilation
Mounting position Portrait mounting (vertical), attachment to DIN rail (horizontal)
1) Open equipment according to UL 61800‑5‑1
2) Customers must ensure that the product, with the external fire protection enclosure to be attached by
customers, meets the requirements for fire protection of the material according to UL 94 V‑1 and the
mechanical stability / fire protection requirements / touch protection according to UL 61800‑5‑1.
2) Le client est tenu de veiller à ce que les exigences en matière de résistance à l'incendie du matériel
selon UL 94 V-1 et les exigences en matière de stabilité mécanique/protection incendie/protection contre
les contacts selon UL 61800-5-1 soit remplies par la mise en œuvre d'une enveloppe anti-incendie
externe.
Note
Our products for industrial applications are presently not in the area of validity of Directive
2011/65/EC (RoHS).
However, to use our products in equipment, which today must already comply with Directive
2011/65/EC (RoHS), we can confirm that our products comply with the limit values laid down
in directive 2011/65/EC (RoHS).
Table 10-2 Electrical and mechanical data
Main memory 8 GB DRAM
SIMATIC S7 - integrated PLC 1500
Overvoltage category Secondary circuit supplied from primary circuits up to Cat. III, 300 V
AC
2)
Input voltage
3)
24 V DC (-15%/+20%)
Brief voltage interruptions in
accordance with Namur
Min. 15 ms (at 20.4 V)
Max. 10 events/hour; recovery time min. 1 s
MCU 1720
Equipment Manual, 09/2019, A5E47437728B AB
87