2-73636996 by Driescher
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The Driescher 3-pin interior wall-mounted isolating switch, part number 2-73636996 (Catalogue title: 2-73636996), is a high-performance electrical switching device designed for indoor applications. Designated as type iTR 38,5-1600-40, this unit features a rated voltage of 40.5kV, a rated current of 1600A, and a short-circuit current rating of 40kA for 3 seconds. It has a lightning impulse withstand voltage of 195kV, a pole distance of 400mm, and an xy dimension of 775mm. Built to class M2, this device includes inevitably actuated earthing switches installed above, rated for Ik 31.5kA and tk 3s, falling under class E0. Additional equipment includes a 12-pin auxiliary switch 013229 on the isolator utilizing wiring diagram EQ4A 066A A000 00A, and a second 12-pin auxiliary switch 013229 on the earth utilizing wiring diagram EQ6D 066A A000 00A for position notification. Constructed according to drawing IT3-114470-001-02 (ID 114470-001-02, OZL, 2xG12, iTR 38.5-1600-40 p500), it contains 21.05 kg of copper and 30.11 g of silver.
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Characteristics
| Manufacturer | Driescher |
|---|---|
| Part number | 2-73636996 |
| Inner Code | 4449422 |
| Custom Code | 85353010 |
Technical specification
| Product type | 3-pin interior wall-mounted isolating switch |
|---|---|
| Part number | 2-73636996 |
| Type | iTR 38,5-1600-40 |
| Design | Interior/wall-mounted |
| Rated voltage (ur) | 40.5kV |
| Rated current (IR) | 1600A |
| Short-circuit current (IK) | 40kA |
| Short-circuit duration (TK) | 3s |
| Lightning impulse withstand voltage (Up) | 195kV |
| Pole distance (P) | 400mm |
| Dimensions (xy) | 775mm |
| Mechanical class | class M2 |
| Earthing switch short-circuit current (Ik) | 31.5kA |
| Earthing switch short-circuit duration (tk) | 3s |
| Earthing switch class | class E0 |
| Auxiliary switch on isolator | 12-pin auxiliary switch 013229 |
| Isolator wiring diagram | EQ4A 066A A000 00A |
| Auxiliary switch on earth | 12-pin auxiliary switch 013229 |
| Earth wiring diagram | EQ6D 066A A000 00A |
| Drawing | IT3-114470-001-02 |
| Copper content (Cu) | 21.05 kg |
| Silver content (Ag) | 30.11 g |