Heavy duty, 3 electrode gas tube arrester with fail safe open mechanism. Mounting on standard AAR 2 3/8” binding post terminals. For 0-30 VDC (0-24 VAC). The arrester is connected across the lines; protection provided each line to ground and line to line. Bipolar operation.
Performance :- Nominal breakdown voltage 90 VDC line to ground; 150 VDC line to line. Let-through voltage (after initial microseconds) at 30V regardless of surge current amplitude or duration. Insulation resistance 1000 megaohms minimum.
- Surge current rating maximum :
75 KA, for 8/20 µs; 5 KA for 10/1000 µs
-
Life (minimum)
- 10 KA 8/20 µs 200 operations
- 25 KA 8/20 µs 50
- 50 KA 8/20 µs 20
- 75 KA 8/20 µs 2
- 500 A 10/1000 µs 3000
- 1 KA 10/1000 µs 500
- 3 KA 10/1000 µs 50
- 5 KA 10/1000 µs 2
- End of Life
- Fail safe open by spring action pulling the gas tube out of internal connections. Visual inspection through transparent enclosure.
- Broken gas tube ceramic, visual inspection.
- High breakdown voltage.
- Insulation resistance below 10K ohms. Measurable with ohmmeter.
Signal and communications, track overlay circuits.
Unit of Measure