Current-Relay for Obstacle Lights Type STW200
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Current-relays STW 200 monitor AC-currents for falling below an adjusted limit. The ranges 12 ... 120 mA and 0.1 ... 1 A allow the monitoring of LED-Lamps as well as incandescent lamps in obstruction lights. In case of main lamp failure a relay switches on the reserve lamp. An alarm contact is available for signalling a lamp failure.
Application
Monitoring of LED-Lamps or light-bulbs in twin obstacle lights with alarm (lamp failure) and switching on a reserve lamp. Monitoring of the function of single obstacle lights. At conventional solutions with a change over contact, there is a short on-pulse at the reserve lamp every time when the system is switched on. The STW 200 switches it on only in case of a failure of the main lamp. LED-lamps can also be monitored with long cables between relay and lamp. When monitoring LED-lamps a total failure is detected. Failures of single LEDs are not detected.
- Measuring input 12…120 mA for LED-lamps
- Measuring input 0,1…1 A for incandescent lamps (bulbs)
- Adjustment range 10…100%
- Relay for switching on reserve lamp in operating current mode
- Relay for Alarm in closed current mode
- Cable-length from relay to lamp up to 500 m
- Display green = o.k., red = low current alarm
- Housing 70 mm wide, mounting height 55 mm
| Product group: | Mains Monitoring |
|---|---|
| Input/ Measured parameter: | Current measuring |
| Outputs: | Outputs/Relays |
| Supply voltage: | AC 230 V |
| Design: | Mount in switchgear cabinet, Mount in circuit breaker box |