PT 4-24AC-ST
-
Surge protection plug
2800078
Protective connector PT with protective circuit for a 4-wire floating signal circuit. Nominal voltage: 24 V AC
This product needs further products for operation.
Mandatory accessories
Product details
| General | |
| Note | If the maximum permissible short-circuit current at the installation location exceeds the specified values, a fuse should be selected which ensures a shutdown time of < 5 s. |
| Technical data is valid in association with the following specified base elements: | |
| with PT 4+F-BE | |
| with PT 4-BE | |
| Product family | PLUGTRAB PT |
| IEC test classification | C1 |
| C2 | |
| C3 | |
| D1 | |
| Type | Male |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Nominal voltage UN | 24 V AC |
| Connection method | Screw connection (in connection with the base element) |
| Screw thread | M3 |
| Tightening torque | 0.5 Nm |
| 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 | 17.7 mm |
| Height | 45 mm |
| Depth | 52 mm |
| Horizontal pitch | 1 Div. |
| Complete module width | 17.7 mm |
| Complete module height | 90 mm |
| Complete module depth | 65.5 mm |
| Color | black (RAL 9005) |
| Flammability rating according to UL 94 | V-0 |
| Housing material | PA 6.6 |
| Mechanical data | |
| Open side panel | No |
| Direction of action | Line-Line & Line-Signal Ground/Shield & optional Signal Ground/Shield-Earth Ground |
| Nominal voltage UN | 24 V AC |
| Maximum continuous operating voltage UC | 40 V DC |
| 28 V AC | |
| Rated current | 2 A AC (80 °C) |
| 500 mA DC (80 °C) | |
| Operating effective current IC at UC | ≤ 5 µA |
| Protective conductor current IPE | ≤ 4 µA (with PT 4-BE) |
| ≤ 1 µA (with PT 4+F-BE) | |
| Nominal discharge current In (8/20) µs (line-line) | 187 A |
| Nominal discharge current In (8/20) µs (line-ground) | 10 kA |
| Pulse discharge current Iimp (10/350) µs | 2.5 kA |
| Total discharge current ITotal (8/20) µs | 20 kA |
| Max. discharge current Imax (8/20) µs maximum (line-line) | 187 A |
| Max. discharge current Imax (8/20) µs maximum (line-earth) | 10 kA |
| Nominal pulse current Ian (10/1000) µs (line-line) | 36 A |
| Output voltage limitation at 1 kV/µs (line-line) spike | ≤ 75 V |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 450 V (with PT 4-BE) |
| ≤ 1 kV (with PT 4+F-BE) | |
| Output voltage limitation at 1 kV/µs (line-line) static | ≤ 75 V |
| Output voltage limitation at 1 kV/µs (line-earth) static | ≤ 25 kV (with PT 4-BE) |
| ≤ 50 V (with PT 4+F-BE) | |
| Residual voltage at In (conductor-conductor) | ≤ 105 V |
| Residual voltage with Ian (10/1000) µs (line-line) | ≤ 80 V |
| Voltage protection level Up (line-line) | ≤ 85 V (C1 - 500 V / 250 A) |
| ≤ 70 V (C3 - 10 A) | |
| ≤ 75 V (C3 - 25 A) | |
| Voltage protection level Up (line-earth) | ≤ 450 V (C2 - 10 kV / 5 kA with PT 4-BE) |
| ≤ 1 kV (C2 - 10 kV / 5 kA with PT 4+F-BE) | |
| Voltage protection level Up static (line-earth) | ≤ 50 V (C2 - 10 kV / 5 kA with PT 4-BE) |
| ≤ 100 V (C2 - 10 kV / 5 kA with PT 4+F-BE) | |
| Response time tA (line-line) | ≤ 1 ns |
| Response time tA (line-earth) | ≤ 100 ns |
| Input attenuation aE, sym. | 0.1 dB (≤ 2 MHz / 50 Ω) |
| 0.1 dB (≤ 600 kHz / 150 Ω) | |
| Cut-off frequency fg (3 dB), sym. in 50 Ω system | typ. 10 MHz |
| Cut-off frequency fg (3 dB), sym. in 150 Ω system | typ. 3 MHz |
| Capacity (Core-Core) | typ. 0.7 nF |
| Capacity (Core-Earth) | typ. 40 pF (with PT 4-BE) |
| typ. 20 pF (with PT 4+F-BE) | |
| Resistance per path | 0 Ω |
| Surge protection fault message | none |
| Impulse durability (line-line) | C1 - 500 V / 250 A |
| C3 - 10 A | |
| C3 - 25 A | |
| Impulse durability (line-earth) | C2 - 10 kV / 5 kA |
| D1 - 2.5 kA |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -40 °C ... 85 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Altitude | ≤ 2000 m (amsl) |
| Standards/specifications | IEC 61643-21 |
| Note | 2000 + corrigendum 2001 + A1:2008, modified + A2:2012 |
| Standards/specifications | EN 61643-21 |
| Note | 2001 + A1:2009 + A2:2013 |
| Mounting type | on base element |
Your advantages
Easy testing and documentation with CHECKMASTER 2 with pluggable protective modules
Maximum ease of maintenance, thanks to the 2-piece design
Easy selection for all possible demands in MCR applications with a complete product portfolio
The signal is not influenced during maintenance work, thanks to the impedance-neutral insertion and removal of protective plugs
Plugs can be checked with CHECKMASTER