S-PT-EX-24DC-1/2"
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Surge protection device
2800035
Surge protection for a floating signal circuit in the screw-on module with IP67 degree of protection for sensor heads, connection: ½-inch 14 NPT. Tested in accordance with the following types of protection in Ex areas: Ex d/Ex tD/Ex ia IIC/Ex iaD. Suitable for use in the fieldbus system in accordance with the FISCO concept, HART-compatible. Can be used in safety-related circuits up to SIL 3.
Product details
| Product type | Surge protection for MCR technology |
| Product family | SURGETRAB |
| IEC test classification | C1 |
| C2 | |
| C3 | |
| D1 | |
| Type | Screw-in module |
| Number of positions | 2 |
| Wire pairs per module | 1 |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Nominal voltage UN | 24 V DC |
| Connection method | Individual wires |
| Maximum inner capacitance Ci | 1.65 nF |
| Max. internal inductance Li | 1 µH |
| Max. input current Ii | 500 mA (T4 / ≤ 75 °C) |
| 500 mA (T5 / ≤ 75 °C) | |
| 500 mA (T6 / ≤ 60 °C) | |
| Max. input voltage Ui | 36 V DC |
| max. input power Pi | 3.00 W |
| Insulation voltage to ground | 500 V 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) | |
| Max. surface temperature | 135 °C (T4) |
| 100 °C (T5) | |
| 85 °C (T6) |
| Dimensional drawing |
|
| Width | 28 mm |
| Height | 28 mm |
| Depth | 79 mm |
| Color | Steel/stainless steel color |
| Housing material | Stainless steel 1.4404 |
| ASTM 316L |
| Mechanical data | |
| Open side panel | No |
| Direction of action | Line-Line & Line-Earth Ground |
| Maximum continuous operating voltage UC | 36 V DC |
| 25 V AC | |
| Operating effective current IC at UC | ≤ 5 µA |
| Protective conductor current IPE | ≤ 2 µA |
| Nominal discharge current In (8/20) µs (line-line) | 260 A |
| Nominal discharge current In (8/20) µs (line-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 |
| Max. discharge current Imax (8/20) µs maximum (line-line) | 260 A |
| Max. discharge current Imax (8/20) µs maximum (line-earth) | 20 kA |
| Nominal pulse current Ian (10/1000) µs (line-line) | 50 A |
| Output voltage limitation at 1 kV/µs (line-line) spike | ≤ 130 V |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 1.1 kV |
| Output voltage limitation at 1 kV/µs (line-line) static | ≤ 60 V |
| Voltage protection level Up (line-line) | ≤ 65 V (C3 - 10 A) |
| Voltage protection level Up (line-earth) | ≤ 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 (line-line) | ≤ 1 ns |
| Response time tA (line-earth) | ≤ 100 ns |
| Input attenuation aE, sym. | typ. 0.1 dB (30 MHz / 50 Ω) |
| typ. 0.1 dB (6 MHz / 150 Ω) | |
| Cut-off frequency fg (3 dB), sym. in 50 Ω system | typ. 70 MHz |
| Cut-off frequency fg (3 dB), sym. in 150 Ω system | typ. 70 MHz |
| Capacity (Core-Core) | typ. 20 pF |
| Capacity (Core-Earth) | typ. 5 pF |
| Surge protection fault message | none |
| Impulse durability (line-line) | C3 - 25 A |
| Impulse durability (line-earth) | C1 - 1 kV / 500 A |
| C2 - 10 kV / 5 kA | |
| C3 - 100 A | |
| D1 - 1 kA | |
| Alternating current carrying capacity (line-earth) | 10 A - 1 s |
| Ambient conditions | |
| Degree of protection | IP67 |
| Ambient temperature (operation) | -40 °C ... 80 °C (non-Ex) |
| Altitude | ≤ 2000 m (amsl) |
| Conformity/Approvals | |
| ATEX | II 1 G Ex ia IIC T4...T6 |
| II 2 G Ex d IIC T4...T6 | |
| II 1 D Ex iaD 20 IP6x T85 °C...135 °C | |
| II 2 D Ex tD A21 IP6x T85 °C...135 °C | |
| IECEx | Ga Ex ia IIC T4...T6 |
| Ex d IIC T4...T6 | |
| Ex iaD IP6x T85 °C...135 °C | |
| Ex tD A21 IP6x T85 °C...135 °C | |
| Standards/specifications | EN 61643-21 |
| Note | A2:2013 |
| Standards/specifications | EN 60079-0 |
| Note | 2018 |
| Standards/specifications | EN 60079-1 |
| Note | 2007 |
| Standards/specifications | EN 60079-11 |
| Note | 2012 |
| Standards/specifications | EN 60079-31 |
| Note | 2009 |
| Standards/specifications | IEC 60079-0 |
| Note | 2017 |
| Standards/specifications | IEC 60079-1 |
| Note | 2007 |
| Standards/specifications | IEC 60079-11 |
| Note | 2011 |
| Standards/specifications | IEC 60079-31 |
| Note | 2008 |
| Standards/specifications | GB/T 3836.1 |
| Note | 2021 |
| Standards/specifications | GB/T 3836.2 |
| Note | 2021 |
| Standards/specifications | GB/T 3836.4 |
| Note | 2021 |
| Standards/specifications | GB/T 3836.31 |
| Note | 2021 |
| Mounting type | 1/2" NPT |
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Your advantages
Easiest field mounting with standardized thread
Versatile in use with universal protective circuit
Use under extreme ambient conditions with robust design