2838173
Official DistributorSKU
PHX2838173
Weight
0.065 kg
Surge protection device - TT-2/2- 24DC
Terminal block with three-stage surge protection for two signal wires with common reference potential, separate ground connection, nominal voltage: 24 V DC, for mounting on NS 35/7.5, terminal width: 6.2 mm, terminal height: 54.6 mm
- Versions with and without disconnect knife
- Protection of two signal wires with common reference potential
- Multi-stage modular terminal blocks with screw connection technology
- Disconnection of signal circuits by disconnect knife
Technical Specifications
Ambient conditions
| Altitude | ≤ 2000 m |
| Degree of Protection | IP20 |
General
| Housing Material | PA 6.6 |
| Flammability rating according to UL 94 | V-0 |
| Color | black |
| Standards for cearances and creepage distances | IEC 60664-1 |
| Mounting Type | DIN rail: 35 mm |
| Type | Double-level terminal block with PE foot – separate PE connection |
| Direction of action | Line-Earth Ground |
Protective circuit
| IEC test classification | C1 |
| IEC test classification | C2 |
| IEC test classification | C3 |
| IEC test classification | D1 |
| Nominal voltage UN | 24 |
| Maximum continuous voltage UC | 30 |
| Rated current | 300 (40 °C) |
| Operating effective current IC at UC | ≤ 10 µA (per path) |
| Standby power consumption PC | ≤ 1430 mVA |
| Residual current IPE | ≤ 10 µA (per path) |
| Nominal discharge current In (8/20) µs (line-earth) | 5 kA |
| Pulse discharge current Iimp (10/350) µs | 500 |
| Total discharge current Itotal (8/20) µs | 10 kA |
| Nominal pulse current Ian (10/1000) µs (line-earth) | 100 |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 50 V |
| Voltage protection level Up (line-earth) | ≤ 90 V (C2 - 10 kV / 5 kA) |
| Voltage protection level Up (line-earth) | ≤ 55 V (C1 - 1 kV / 500 A) |
| Voltage protection level Up (line-earth) | ≤ 45 V (C3 - 10 A) |
| Voltage protection level Up (line-earth) | ≤ 50 V (C3 - 100 A) |
| Voltage protection level Up (line-earth) | ≤ 130 V (D1 - 500 A) |
| Response time tA (line-earth) | ≤ 1 ns |
| Input attenuation aE, asym. | 0.4 dB (≤ 200 kHz / 50 Ω) |
| Input attenuation aE, asym. | 0.1 dB (≤ 30 kHz/150 Ω) |
| Cut-off frequency fg (3 dB), asym. (PE) in 50 Ω system | typ. 1.5 MHz |
| Cut-off frequency fg (3 dB), asym. (PE) in 150 Ω system | typ. 550 kHz |
| Capacity (line-line) | ≤ 4 nF |
| Resistance per path | 6.6 Ω ±20 % |
| Surge protection fault message | none |
| Max. required back-up fuse | 315 (T/IEC 60127-2/3) |
| Impulse durability (line-earth) | C1 - 1 kV / 500 A |
| Impulse durability (line-earth) | C2 - 10 kV / 5 kA |
| Impulse durability (line-earth) | C3 - 100 A |
| Impulse durability (line-earth) | D1 - 500 A |
| Alternating current carrying capacity (line-earth) | 0.5 A - 1 s |
Connection data
| Connection method IN | Screw terminal blocks |
| Connection method OUT | Screw terminal blocks |
| Tightening torque | 0.8 Nm |
Standards and Regulations
| Standards/specifications | IEC 61643-21/A1 2008 |
| Standards/specifications | EN 61643-21/A1 2009 |
Accessories
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Additional Information
| Pack Size | 1 |
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