The product is 3-Elektroden-Ableiter 3-Electrode Arresters, the brand is Siemens, the model is T80-A230X, T80-A350X, T81-230X, T81-A350X, T83-A90X, T83-A230X, T83-A350X, T87-C600X. The rated voltage is 90V, 230V, 350V, 600V, the rated current is 10kA/10A, the rated ground resistance is ≥1010Ω, the ground capacitance is 50pF, 100pF.
The 3‑Electrode Arresters (3‑Elektroden‑Ableiter) are high‑voltage protective devices offered by Siemens. They are supplied in several types (T80, T81, T83, T87) with or without leads and with optional short‑circuit springs.
Key data include a rated impulse discharge current of 10 kA, alternating discharge current of 10 A, spark‑over voltages ranging from 90 V to 600 V, insulation resistance of 210 MΩ, capacitance below 1 pF and an approximate weight of 1.8 g. Ordering codes for each variant are listed in the sheet. This manual is written in German.
| Rated impulse discharge current | 10 kA |
|---|---|
| Rated alternating discharge current | 10 A |
| Nominal spark‑over voltage (T80) | 90 V |
| Tolerance of spark‑over voltage | +20 % |
| Insulation resistance | 210 MΩ |
| Approximate weight | 1.8 g |
The rated impulse discharge current is 10 kA.
The nominal spark‑over voltage for the T80 type is 90 V.
The insulation resistance is specified as 210 MΩ.