TT-ST-M-2/2-24DC
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Surge protection device
2858917
TERMITRAB, spring-cage modular terminal block with integrated surge protection 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 type | Surge protection for MCR technology |
| IEC test classification | C1 |
| C2 | |
| C3 | |
| D1 | |
| VDE requirement class | C1 |
| C2 | |
| C3 | |
| D1 | |
| Type | Double-level terminal block with disconnect knife |
| Number of positions | 2 |
| Surge protection fault message | none |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Nominal voltage UN | 24 V DC |
| 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 ... 14 |
| Dimensional drawing |
|
| Width | 6.2 mm |
| Height | 100 mm |
| Depth | 65.1 mm (incl. DIN rail 7.5 mm) |
| Flammability rating according to UL 94 | V-2 |
| Housing material | PA 6.6 |
| Mechanical data | |
| Open side panel | Yes |
| Direction of action | Line-Earth Ground |
| Maximum continuous operating voltage UC | 30 V DC |
| 21 V AC | |
| Rated current | 300 mA (45 °C) |
| Operating effective current IC at UC | ≤ 10 µA (per path) |
| Standby power consumption PC | ≤ 1.86 VA |
| Protective conductor current IPE | ≤ 20 µA |
| Nominal discharge current In (8/20) µs (line-ground) | 5 kA |
| Pulse discharge current Iimp (10/350) µs | 1 kA (per path) |
| Total discharge current ITotal (8/20) µs | 10 kA |
| Total discharge current ITotal (10/350) µs | 2 kA |
| Max. discharge current Imax (8/20) µs maximum (line-earth) | 5 kA |
| Nominal pulse current Ian (10/1000) µs (line-earth) | 100 A |
| 200 A (in total) | |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 40 V |
| Output voltage limitation at 1 kV/µs (line-earth) static | ≤ 40 V |
| Residual voltage at In (conductor-ground) | ≤ 40 V |
| Residual voltage with Ian (10/1000) µs (line-earth) | ≤ 45 V |
| Voltage protection level Up (line-earth) | ≤ 80 V (C2 - 10 kV / 5 kA) |
| ≤ 40 V (static) | |
| Response time tA (line-earth) | ≤ 1 ns |
| Input attenuation aE, asym. | typ. 0.6 dB (500 kHz/50 Ω) |
| typ. 0.1 dB (170 kHz/150 Ω) | |
| typ. 0.1 dB (40 kHz / 600 Ω) | |
| Cut-off frequency fg (3 dB), asym. (PE) in 50 Ω system | typ. 3 MHz |
| Cut-off frequency fg (3 dB), asym. (PE) in 150 Ω system | typ. 1 MHz |
| Cut-off frequency fg (3 dB), asym. (PE) in 600 Ω system | typ. 250 kHz |
| Capacity (Core-Earth) | 2 nF |
| Resistance per path | 9.4 Ω ±10 % |
| Surge protection fault message | none |
| Max. required back-up fuse | 315 mA |
| Impulse durability (line-earth) | C2 - 10 kV / 5 kA |
| D1 - 1 kA | |
| C3 - 100 A |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -40 °C ... 85 °C |
| Altitude | max. 2000 m |
| VDE requirement class | C1 |
| C2 | |
| C3 | |
| D1 | |
| Air clearances and creepage distances | |
| Standards/regulations | EN 60664-1 / IEC 60664-1 |
| Standards/specifications | IEC 61643-21/A1 |
| Note | 2008 |
| Standards/specifications | EN 61643-21/A1 |
| Note | 2009 |
| Mounting type | DIN rail: 35 mm |
