
2858043
PT 3-HF-12DC-ST - Surge protection plug
Surge protection plug for the base element, normal mode voltage coarse and fine protection for two floating signal wires and ground in IT, common mode voltage coarse protection to ground/earth. Design: 12 V DC
- 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
PT
The Phoenix Contact PT Series comprises feed-through terminal blocks that utilize Push-in connection technology, offering efficient and reliable wiring solutions for various industrial applications. These terminal blocks are designed for straightforward conductor insertion, enhancing installation speed and ensuring secure connections.
- Push-in Connection Technology: The PT Series employs a direct plug-in method, allowing solid conductors or conductors with ferrules to be inserted easily without the need for tools. This design facilitates quick and reliable wiring.
- Compact Design: The terminal blocks feature a space-saving form factor, making them suitable for applications where installation space is limited.
- High Electrical Ratings: Depending on the specific model, the PT Series terminal blocks can handle nominal voltages up to 800 V and nominal currents up to 32 A, accommodating a wide range of electrical requirements.
- Versatile Conductor Compatibility: These terminal blocks support various conductor types and sizes, providing flexibility in wiring configurations.
- Integration with CLIPLINE Complete System: The PT Series is compatible with Phoenix Contact's CLIPLINE complete system, allowing for standardized bridging, marking, and testing accessories, which simplifies inventory management and enhances system modularity.
Product properties
| Product family | PLUGTRAB PT |
| IEC test classification | C1 |
| IEC test classification | C2 |
| IEC test classification | C3 |
| IEC test classification | D1 |
| VDE requirement class | C1 |
| VDE requirement class | C2 |
| VDE requirement class | C3 |
| VDE requirement class | D1 |
| Type | Male |
| Number of Positions | 3 |
| Arrester can be tested with CHECKMASTER from software version: | From SW rev. 1.10 |
| Wire pairs per module | 1 |
Insulation characteristics
| Overvoltage category | III |
| Pollution degree | 2 |
Electrical properties
| Nominal voltage UN | 12 V DC |
Connection data
| Connection Method | Screw connection (in connection with the base element) |
| Screw thread | M3 |
| Tightening torque | 0.8 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 |
Dimensions
| 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 |
Material specifications
| Color | black (RAL 9005) |
| Flammability rating according to UL 94 | V-0 |
| Housing Material | PA |
Mechanical data
| Open side panel | No |
Protective circuit
| Direction of action | Line-Line & Line-Signal Ground/Shield & optional Signal Ground/Shield-Earth Ground |
| Maximum continuous voltage UC | 14 V DC |
| Maximum continuous voltage UC | 9.8 V AC |
| Rated current | 450 mA (45 °C) |
| Operating effective current IC at UC | ≤ 5 µA |
| Residual current IPE | < 5 µA (with PT 1X2-BE) |
| Residual current IPE | < 1 µA (with PT 1X2+F-BE) |
| Nominal discharge current In (8/20) µs (line-line) | 10 kA |
| Nominal discharge current In (8/20) µs (line-ground) | 10 kA |
| Nominal discharge current In (8/20) µs (line-signal 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) | 10 kA |
| Max. discharge current Imax (8/20) µs maximum (line-earth) | 10 kA |
| Nominal pulse current Ian (10/1000) µs (line-line) | 67 A |
| Output voltage limitation at 1 kV/µs (line-line) spike | ≤ 55 V |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 55 V (with PT 1X2-BE) |
| Output voltage limitation at 1 kV/µs (line-earth) spike | ≤ 700 V (with PT 1X2+F-BE) |
| Output voltage limitation at 1 kV/µs (line-line) static | ≤ 25 V |
| Output voltage limitation at 1 kV/µs (line-earth) static | ≤ 25 V |
| Output voltage limitation at 1 kV/µs (line-earth) static | ≤ 40 V (with PT 1X2+F-BE) |
| Residual voltage at In (conductor-conductor) | ≤ 25 V |
| Residual voltage at In (conductor-ground) | ≤ 40 V (with PT 1X2-BE) |
| Residual voltage at In (line-signalground) | ≤ 25 V (with PT 1X2-BE) |
| Residual voltage with Ian (10/1000) µs (line-line) | ≤ 25 V |
| Residual voltage with Ian (10/1000) µs (line-signalground) | ≤ 25 V |
| Voltage protection level Up (line-line) | ≤ 50 V (C3 - 25 A) |
| Voltage protection level Up (line-line) | ≤ 80 V (C1 - 1 kV / 500 A) |
| Voltage protection level Up (line-line) | ≤ 110 V (C2 - 10 kV / 5 kA) |
| Voltage protection level Up (line-line) | ≤ 80 V (6 kV / 3 kA) |
| Voltage protection level Up (line-earth) | ≤ 50 V (C3 - 25 A) |
| Voltage protection level Up (line-earth) | ≤ 85 V (C1 - 1 kV / 500 A) |
| Voltage protection level Up (line-earth) | ≤ 140 V (C2 - 10 kV / 5 kA) |
| Voltage protection level Up (line-earth) | ≤ 100 V (6 kV / 3 kA) |
| Voltage protection level Up (line-signalground) | ≤ 50 V (C3 - 25 A) |
| Response time tA (line-line) | ≤ 500 ns |
| Response time tA (line-earth) | ≤ 500 ns |
| Input attenuation aE, sym. | typ. 0.3 dB (≤ 5 MHz / 100 Ω) |
| Cut-off frequency fg (3 dB), sym. in 100 Ω system | typ. 60 MHz |
| Capacity (core-core) | typ. 30 pF |
| Resistance per path | 2.2 Ω ±10 % (7-8/11-12) |
| Max. required back-up fuse | 500 mA (T) |
| Impulse durability (line-line) | C2 - 10 kV / 5 kA |
| Impulse durability (line-line) | C3 - 67 A |
| Impulse durability (line-earth) | C2 - 10 kV / 5 kA |
| Impulse durability (line-earth) | C3 - 67 A |
| Impulse durability (line-earth) | D1 - 2.5 kA |
Ambient conditions
| Degree of Protection | IP20 |
| Ambient Temperature (Operation) | -40 °C ... 85 °C |
| Altitude | max. 2000 m |
Standards and Regulations
| VDE requirement class | C1 |
| VDE requirement class | C2 |
| VDE requirement class | C3 |
| VDE requirement class | D1 |
Air clearances and creepage distances
| Standards/regulations | DIN EN 61664-1 / IEC 60664-1 |
| Standards/specifications | EN 61643-21/A1 |
| Note | 2009 |
| Standards/specifications | IEC 61643-21/A1 |
| Note | 2008 |
Mounting
| Mounting Type | on base element |
Why Proax for Phoenix Contact 2858043?
Proax is an authorized distributor of Phoenix Contact 2858043 and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.
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| Pack Size | 1 |



















