×
Siemens Industry Online Support
Siemens AG
Entry type: FAQ, Entry ID: 21656730, Entry date: 11/18/2014
(0)
Rate

Switching of voltages higher Ue 1000V AC and 1500V DC

  • Entry
  • Associated product(s)

QUESTION:

What products of the SIRIUS Low-Voltage Switchgear range can be used in circuits with Ue >1000V AC und >1500V DC?

 

 

ANSWER:

60947-1 standards for Low-Voltage Switchgear specify test conditions for rated insulation voltages Ui of max. 1000V AC and 1500V DC.
Even though the actual test voltages for the determination of the Ui are partially higher than 1500 V, an operation of Low-Voltage Switchgear in circuits with Ue >1000V AC and >1500V DC is not permissible. This also applies if the load current is a few milliampere only and if the switching is done under no-load condition.

As a solution we recommend the use of 'medium voltage relays' that are offered by SIEMENS. 
For inquiries on those issues, please refer to:
Tel: +49 (180) 524-7000
Fax: +49 (180) 524-2471

Email:
support.energy@siemens.com

Internet-Homepage:
www.energy.siemens.com

 

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
http://www.siemens.com/industrialsecurity.