FLT-SEC-T1+T2-3IT-350/25-FM
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Type 1+2 special combined lightning current and surge arrester
1044386
Plug-in lightning and surge protective device combination, in accordance with Type 1+2 / Class I+II, for 3-phase power supply networks in isolated operation with separate N and PE (L1, L2, L3, N, PE).
Product details
| General | |
| Note | Usable in all low-voltage systems between L-N or L-PEN. Only usable in IT Systems between L-PE, if the exposed-conductive-parts (bodies) of the equipment of the low-voltage installation is connected to the earthing arrangement of the transformer substation. (interconnected earthing arrangement of the HV-transformer substation with the bodies of the LV-installation. RE = RA accordance to IEC 60364-4-442 / VDE 0100-442 Fig. 44D / Example a) |
| Product type | Arrester combination |
| Product family | SEC Family |
| IEC test classification | I + II |
| T1 + T2 | |
| EN type | T1 + T2 |
| IEC power supply system | IT |
| Type | DIN rail module, two-section, divisible |
| Number of positions | 4 |
| Surge protection fault message | Optical, remote indicator contact |
| Insulation characteristics | |
| Overvoltage category | III |
| Pollution degree | 2 |
| Nominal frequency fN | 50 Hz (60 Hz) |
| Indicator/remote signaling | |
| Connection name | Remote fault indicator contact |
| Switching function | Changeover contact |
| Operating voltage | 12 V AC ... 250 V AC |
| 125 V DC (200 mA DC) | |
| Operating current | 10 mA AC ... 1 A AC |
| 1 A DC (30 V DC) | |
| Connection method | Screw terminal blocks |
| Screw thread | M5 |
| Tightening torque | 4.5 Nm |
| Stripping length | 18 mm |
| Conductor cross-section flexible | 2.5 mm² ... 35 mm² |
| Conductor cross-section rigid | 2.5 mm² ... 35 mm² |
| Conductor cross-section AWG | 13 ... 2 |
| Connection method | Fork-type cable lug |
| Conductor cross-section flexible | 1.5 mm² ... 16 mm² |
| Remote fault indicator contact | |
| Connection method | Plug-in/screw connection via COMBICON |
| Screw thread | M2 |
| Tightening torque | 0.25 Nm |
| Stripping length | 7 mm |
| Conductor cross-section flexible | 0.14 mm² ... 1.5 mm² |
| Conductor cross-section rigid | 0.14 mm² ... 1.5 mm² |
| Conductor cross-section AWG | 28 ... 16 |
| Dimensional drawing |
|
| Width | 142.4 mm |
| Height | 95.2 mm |
| Depth | 74.5 mm |
| Horizontal pitch | 8 Div. |
| Color (Male connector) | light gray (RAL 7035) |
| Color (Base element) | gray (RAL 7042) |
| Flammability rating according to UL 94 | V-0 |
| CTI value of material | 600 |
| Insulating material | PA6.6-FR 20% GF |
| PBT-FR | |
| Material group | I |
| Housing material | PA 6.6-FR 20 % GF |
| PBT-FR |
| Mechanical data | |
| Open side panel | No |
| Mode of protection | L-N |
| L-PE | |
| N-PE | |
| Direction of action | 3L-N & N-PE |
| Nominal voltage UN | 240/415 V AC (IT) |
| Nominal frequency fN | 50 Hz (60 Hz) |
| Maximum continuous operating voltage UC | 350 V AC |
| Rated load current IL | 125 A (< 55 °C) |
| Protective conductor current IPE | ≤ 0.5 mA |
| Nominal discharge current In (8/20) µs | 25 kA |
| Impulse discharge current (10/350) µs, charge | 12.5 As |
| Impulse discharge current (10/350) µs, specific energy | 160 kJ/Ω |
| Impulse discharge current (10/350) µs, peak value limp | 25 kA |
| Follow current interrupt rating Ifi | 25 kA (264 V AC) |
| 3 kA (350 V AC) | |
| Short-circuit current rating ISCCR | 25 kA (264 V AC) |
| 3 kA (350 V AC) | |
| Voltage protection level Up (L-N) | ≤ 1.5 kV |
| Voltage protection level Up (L-PE) | ≤ 2.8 kV |
| Voltage protection level Up (N-PE) | ≤ 1.5 kV |
| Residual voltage Ures (L-N) | ≤ 1.5 kV (at In) |
| ≤ 1.2 kV (at 10 kA) | |
| ≤ 1 kV (at 5 kA) | |
| ≤ 0.9 kV (at 3 kA) | |
| Residual voltage Ures (L-PE) | ≤ 2.8 kV (at In) |
| ≤ 2.4 kV (at 10 kA) | |
| ≤ 2 kV (at 5 kA) | |
| ≤ 1.8 kV (at 3 kA) | |
| Residual voltage Ures (N-PE) | ≤ 1.5 kV (at In) |
| ≤ 1.2 kV (at 10 kA) | |
| ≤ 1 kV (at 5 kA) | |
| ≤ 0.9 kV (at 3 kA) | |
| TOV behavior at UT (L-N) | 415 V AC (5 s / withstand mode) |
| 440 V AC (120 min / safe failure mode) | |
| Response time tA | ≤ 25 ns |
| Max. backup fuse with V-type through wiring | 125 A (gG) |
| Max. backup fuse with branch wiring | 315 A (gG) |
| Ambient conditions | |
| Degree of protection | IP20 (only when all terminal points are used) |
| Ambient temperature (operation) | -40 °C ... 80 °C |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| Altitude | ≤ 2000 m (amsl) |
| Permissible humidity (operation) | 5 % ... 95 % |
| Shock (operation) | 25g (Half-sine / 11 ms / 3x ±X, ±Y, ±Z) |
| Vibration (operation) | 5g (5 - 500 Hz/2.5 h/X, Y, Z) |
| Standards/specifications | IEC 61643-11 |
| Note | 2011 |
| EN 61643-11 | |
| Standards/specifications | EN 61643-11 |
| Note | 2012 |
| Mounting type | DIN rail: 35 mm |
