TTC-3-1X2-24DC-PT
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Surge protection device
2907325
Surge protection for a 2-wire floating signal circuit, e.g., 0(4) ... 20 mA current loop, HART-compatible.
Product details
| IEC test classification | C1 |
| C2 | |
| C3 | |
| D1 | |
| Type | DIN rail module, one-piece |
| Product type | Surge protection for MCR technology |
| Product family | TERMITRAB complete |
| Wire pairs per module | 1 |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Nominal voltage UN | 24 V DC |
| Connection method | Push-in connection |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.2 mm² ... 1 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.2 mm² ... 1.5 mm² |
| Conductor cross section flexible | 0.2 mm² ... 1.5 mm² |
| Conductor cross section rigid | 0.2 mm² ... 1.5 mm² |
| Conductor cross section AWG | 24 ... 16 |
| Dimensional drawing |
|
| Width | 3.5 mm |
| Height | 106 mm |
| Depth | 69.5 mm (incl. DIN rail 7.5 mm) |
| Flammability rating according to UL 94 | V-0 |
| Insulating material | PBT |
| Housing material | PBT |
| Mechanical data | |
| Open side panel | Yes |
| Direction of action | Line-Line & Line-Signal Ground/Shield & optional Signal Ground/Shield-Earth Ground |
| Maximum continuous voltage UC | 30 V DC |
| 21 V AC | |
| Rated current | 250 mA (70 °C) |
| Operating effective current IC at UC | ≤ 1 µA |
| Residual current IPE | ≤ 1 µA |
| Nominal discharge current In (8/20) µs (line-line) | 5 kA |
| Nominal discharge current In (8/20) µs (line-ground) | 5 kA |
| Pulse discharge current Iimp (10/350) µs (line-earth) | 0.5 kA |
| Total discharge current Itotal (8/20) µs | 10 kA |
| Voltage protection level Up (line-line) | ≤ 50 V (C1 - 500 V / 250 A) |
| ≤ 70 V (C2 - 10 kV / 5 kA) | |
| ≤ 45 V (C3 - 30 A) | |
| Voltage protection level Up (line-earth) | ≤ 1000 V (C2 - 10 kV / 5 kA) |
| ≤ 1000 V (C3 - 100 A) | |
| Voltage protection level Up static (line-line) | ≤ 50 V (C1 - 1 kV / 500 A) |
| Response time tA (line-line) | ≤ 1 ns |
| Input attenuation aE, sym. | typ. 0.3 dB (≤ 600 kHz / 150 Ω) |
| Cut-off frequency fg (3 dB), sym. in 150 Ω system | typ. 2.4 MHz |
| Capacity (Core-Core) | typ. 1 nF |
| Resistance per path | 2.2 Ω ±10 % |
| Surge protection fault message | none |
| Max. required back-up fuse | 250 mA (FF) |
| Impulse durability (line-line) | C1 - 500 V / 250 A |
| C2 - 10 kV / 5 kA | |
| C3 - 30 A | |
| Impulse durability (line-earth) | C2 - 10 kV / 5 kA |
| C3 - 100 A | |
| D1 - 500 A | |
| Pulse reset time (line-line) | ≤ 30 ms |
| Ambient conditions | |
| Degree of protection | IP20 (with end cover) |
| Ambient temperature (operation) | -40 °C ... 85 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Altitude | ≤ 4000 m (amsl) |
| Permissible humidity (operation) | 5 % ... 95 % |
| Standards/specifications | IEC 61643-21 |
| Note | 2000 + corrigendum 2001 + A1:2008, modified + A2:2012 |
| EN 61643-21 | |
| Standards/specifications | EN 61643-21 |
| Note | 2001 + A1:2009 + A2:2013 |
| Mounting type | DIN rail: TH 35 - 7.5 mm |
Your advantages
Extremely space-saving installation with the narrowest overall width of just 3.5˽mm
Cost-optimized with tailored product features
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