TT-ST-M-SFP-24AC
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Surge protection device
2858946
TERMITRAB, spring-cage modular terminal block with integrated surge protection as a filter circuit and disconnect knives, for assembly on NS 35/7.5, voltage UN 24 V DC, terminal width: 6.2 mm, cover width: 2.2 mm
Product details
| Product family | SFP |
| IEC test classification | C1 |
| C3 | |
| Type | Double-level terminal block |
| Surge protection fault message | none |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Nominal voltage UN | 24 V AC |
| Connection method | Spring-cage connection |
| Conductor cross-section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross-section rigid | 0.2 mm² ... 4 mm² |
| Conductor cross-section AWG | 24 ... 12 |
| Dimensional drawing |
|
| Width | 6.2 mm |
| Height | 100 mm |
| Depth | 65.1 mm (incl. DIN rail 7.5 mm) |
| Color | black (RAL 9005) |
| Flammability rating according to UL 94 | V-0 |
| Housing material | PA 6.6 |
| Mechanical data | |
| Open side panel | Yes |
| Direction of action | Line-Earth Ground |
| Nominal voltage UN | 24 V AC |
| Maximum continuous operating voltage UC | 38 V DC |
| 30 V AC | |
| Rated current | 500 mA (55 °C) |
| Operating effective current IC at UC | ≤ 100 µA (per path) |
| Protective conductor current IPE | ≤ 1 mA (per path) |
| Nominal discharge current In (8/20) µs (line-ground) | 350 A (per path) |
| 700 A (in total) | |
| Total discharge current ITotal (8/20) µs | 700 A |
| Max. discharge current Imax (8/20) µs maximum (line-earth) | 1.5 kA (per path) |
| 3 kA (in total) | |
| Nominal pulse current Ian (10/1000) µs (line-earth) | 40 A (per path) |
| 80 A (in total) | |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 70 V (per path) |
| Output voltage limitation at 1 kV/µs (line-earth) static | ≤ 70 V (per path) |
| Residual voltage at In (conductor-ground) | ≤ 80 V |
| Residual voltage with Ian (10/1000) µs (line-earth) | ≤ 80 V |
| Voltage protection level Up (line-earth) | ≤ 80 V (C1 - 500 V / 250 A) |
| Response time tA (line-earth) | ≤ 25 ns |
| Input attenuation aE, asym. | typ. 40 dB (1 MHz/150 Ω) |
| Cut-off frequency fg (3 dB), asym. (PE) in 50 Ω system | typ. 60 kHz |
| Cut-off frequency fg (3 dB), asym. (PE) in 150 Ω system | typ. 20 kHz |
| Capacity (Core-Earth) | typ. 130 nF |
| Inductivity in series | typ. 100 µH |
| Resistance per path | 0.5 Ω |
| Surge protection fault message | none |
| Max. required back-up fuse | 500 mA (T) |
| Impulse durability (line-earth) | C1 - 500 V / 250 A |
| C3 - 40 A |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -40 °C ... 85 °C |
| Altitude | ≤ 2000 m (amsl) |
| Standards/specifications | IEC 61643-21 |
| Note | 2000 + A1:2008 |
| Standards/specifications | EN 61643-21 |
| Note | 2001 + A1:2009 |
| Mounting type | DIN rail: 35 mm |
Your advantages
Effective high-frequency interference attenuation with coils and X and Y capacitors
Space-saving and cost-saving with a narrow overall width
Disconnection of signal circuits by disconnect knife