Compared to conventional demand switches, the NA7 has the following advantages:
Easy installation without complicated adjustments to the local situation or installation of additional base load elements.
It reliably works also with electronic consumers (such as rotating dimmers, vacuum cleaners, switching power supplies for instance for halogen ceiling lights)
The DC control voltage and a cascaded rectifier circuit forces the critical residual ripple down to only few millivolts. The system control lamp which comes with the device allows an easy and constant function monitoring.
It also serves as excellent lightning protector in the case of excessive voltage due to a lightning strike in your neighbourhood.
Reverse polarity protection: If phase and neutral are accidentally wired the wrong way, this will be signalised and so protect you from installation errors.
Resumes functionality autonomously after an electric power outage.
Minimum turn-on delays and short turn-off delays, without risking instable switching status
Comfort NA7 Data
||Nominal voltage / capacity: 16 A, 230 VAC +/- 10%, 2300 watt bulb load. Mechanical operating time of relay: approx. 15,000,000 switching cycles. Single-pole disconnection: for optimum operator protection and minimum residual ripple. A low resistance outle|
||< 2 mV / < 4 mV / < 8 mV (nominal/typical/maximum)|
Surveillance voltage: DC voltage (230 VDC, max. 8 mA) uncritical with regard to the building biology standards.
||VDE certificate, ID-no. 40000677|
Safety: Protected against excess voltage according to IEC 1000-4-4 (Burst) and IEC 1000-4-5 (Surge). Clearance and creepage distance according to EN 600065/VDE0860 are met. Housing: Mounting rail according to DIN-EN 50022