Phoenix S-PT-4-EX-24DC-surge protector 2800036, two-stage surge protection for the sensor head, used for three or four signals of the floating signal circuit in the screw-in module, with IP67 protection level, connection: M20 x 1.5. The tests were carried out according to the protection type of the following potentially explosive areas: Ex d/Ex tD/Ex ia IIC/Ex iaD. Suitable for fieldbus systems conforming to the FISCO concept, HART compatible. Can be used in safety-related circuits up to SIL 3.
| Product Type | measurement and control technology |
| Product Series | SURGETRAB |
| IEC Category | C1 |
| C2 | |
| C3 | |
| D1 | |
| type | protector can be screwed with the protected equipment |
| Bits | 4 |
| insulation characteristics | |
| Overvoltage Category | III |
| pollution level | 2 |
| Rated voltage UN | 24V DC |
| Connection Mode | single line |
| Maximum internal capacitance CI | 1.65 nF |
| Maximum internal inductance LI | 1 µH |
| Maximum input current II | 500 mA (T4 / ≤ 75°C) |
| 500 mA (T5 / ≤ 75°C) | |
| 500 mA (T6 / ≤ 60°C) | |
| Maximum input voltage UI | 36V DC |
| Maximum input power PI | 3.00W |
| grounding | 500V AC |
| ambient temperature (operation) | -40°C ... 75°C (T4) |
| -40°C ... 75°C (T5) | |
| -40°C ... 60°C (T6) | |
| Operating temperature range | -40°C ... 100°C (T4) |
| -40°C ... 75°C (T5) | |
| -40°C ... 60°C (T6) | |
| maximum surface temperature | 135°C (T4) |
| 100°C (T5) | |
| 85°C (T6) |
| Dimensional drawing | |
| width | 28mm |
| height | 28mm |
| depth | 79mm |
| color | steel/stainless steel color |
| sealing material | NBR |
| Shell Material | stainless steel 1.4404 |
| ASTM 316L |
| Mechanical parameters | |
| Open Side Panel | No |
| movement direction | Line-Line & Line-Earth Ground |
| Maximum continuous operating voltage UC | 36V DC |
| 25V AC | |
| UC, the effective working current IC | ≤ 5 µA |
| Residual Flow IPE | ≤ 2 µA |
| Nominal discharge current In(8/20) & micro;s (core-core) | 260 A |
| Rated discharge current In(8/20)& micro;s (core-ground) | 10 kA |
| pulse discharge current Iimp(10/350) µs | 1 kA |
| Total discharge current ITotal(8/20) µs | 20 kA |
| Total discharge current ITotal(10/350) µs | 2 kA |
| rated power pulse current lan (1000)& micro;s (core-core) | 50 A |
| Output voltage limit 1 kV/& micro;s (core-to-core) peak | ≤ 130V |
| Output voltage limit 1 kV/& micro;s (core-ground) peak | ≤ 1.1 kV |
| Output voltage limit 1 kV/& micro;s (core-core) static | ≤ 60V |
| voltage protection level Up(core-core) | ≤ 65V (C3 - 10 A) |
| voltage protection level Up(Line-Ground) | ≤ 1.1 kV (C3 - 100 A) |
| ≤ 1.1 kV (C1 - 1 kV / 500 A) | |
| ≤ 1.2 kV (C2 - 10 kV / 5 kA) | |
| response time tA(core-core) | ≤ 1 ns |
| response time tA (core-ground) | ≤ 100 ns |
| input attenuation AE, symmetrical. | Typical 0.1 dB (30MHz/50Ω) |
| Typical 0.1 dB (6MHz/150 Ω) | |
| cut-off frequency fg(3 dB),50 Ω symmetric system | Typical 70 MHz |
| cut-off frequency fg(3 dB),150 Ω symmetric system | Typical 40 MHz |
| capacitance (core-core) | Typical 20 pF |
| capacitance (core-ground) | 5 pF typical |
| Surge protection fault alarm | None |
| Impact tolerance (line-line) | C3 - 25 A |