TT-ST-2/2-S-12DC
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Surge protection device
2921310
Spring cage modular terminal block with integrated surge protection, for assembly on NS 35/7.5, voltage UN 12 V DC, terminal width: 6.2 mm, cover width: 2.2 mm
Product details
| Product type | Surge protection for MCR technology |
| IEC test classification | C1 |
| C3 | |
| VDE requirement class | C1 |
| C3 | |
| Type | Double-level terminal block |
| Number of positions | 2 |
| Surge protection fault message | none |
| Insulation characteristics | |
| Overvoltage category | III |
| Nominal voltage UN | 12 V DC |
| Connection method | Spring-cage connection |
| Conductor cross section flexible | 0.5 mm² ... 2.5 mm² |
| Conductor cross section rigid | 0.5 mm² ... 4 mm² |
| Conductor cross section AWG | 24 ... 12 |
| Dimensional drawing |
|
| Width | 6.2 mm |
| Height | 100 mm |
| Depth | 63.5 mm |
| 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 |
| Maximum continuous voltage UC | 13 V DC |
| 9 V AC | |
| Rated current | 10 A (50 °C) |
| Operating effective current IC at UC | ≤ 5 µA (DC) |
| ≤ 20 µA (60 Hz) | |
| Protective conductor current IPE | ≤ 10 µA (DC) |
| ≤ 40 µA (60 Hz) | |
| Nominal discharge current In (8/20) µs (line-ground) | 700 A (per path) |
| Total discharge current ITotal (8/20) µs | 1.4 kA |
| Nominal pulse current Ian (10/1000) µs (line-earth) | 140 A (per path) |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 22 V |
| Output voltage limitation at 1 kV/µs (line-earth) static | ≤ 22 V |
| Residual voltage at In (conductor-ground) | ≤ 27 V |
| Residual voltage with Ian (10/1000) µs (line-earth) | ≤ 22 V |
| Voltage protection level Up (line-earth) | ≤ 25 V (C1 - 250 A) |
| Response time tA (line-earth) | ≤ 1 ns |
| Input attenuation aE, asym. | typ. 0.3 dB (≤ 650 kHz / 50 Ω) |
| typ. 0.1 dB (≤ 100 kHz / 150 Ω) | |
| Cut-off frequency fg (3 dB), asym. (siganl ground) in 50 Ω system | typ. 1.7 MHz |
| Cut-off frequency fg (3 dB), asym. (signal ground) in 150 Ω system | typ. 300 kHz |
| Capacity (Core-Earth) | ≤ 5 nF |
| Surge protection fault message | none |
| Max. required back-up fuse | 10 A (T) |
| Impulse durability (line-earth) | C1 - 500 V / 250 A |
| C3 - 100 A | |
| Alternating current carrying capacity (line-earth) | 2 A - 5x 1 s |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -40 °C ... 85 °C |
| VDE requirement class | C1 |
| C3 | |
| Air clearances and creepage distances | |
| Standards/regulations | EN 60664-1 |
| Standards Information technology specification | |
| Standards/regulations | IEC 61643-21 |
| EN 61643-21 | |
| IEC 61643-21 | |
| EN 61643-21 | |
| Standards/specifications | IEC 61643-21/A1 |
| Note | 2008 |
| Standards/specifications | EN 61643-21/A1 |
| Note | 2009 |
| Mounting type | DIN rail: 35 mm |
