Product Model
FLT 35/3+1

Selling Points
- 1Advanced Surge Protection: The FLT 35/3+1 offers robust surge protection for 3+1 circuits, ensuring your electrical systems are safeguarded against lightning and power surges.
- 2Encapsulated Arc Chopping Spark Gap: Equipped with an encapsulated arc chopping spark gap, this arrester provides efficient and reliable protection against electrical discharges.
- 3DIN Rail Mountable: Designed for easy installation, the FLT 35/3+1 can be mounted directly onto a DIN rail, making it a convenient solution for industrial settings.
- 4High Discharge Current Capacity: With a nominal discharge current of up to 100 kA, this arrester can handle high-energy discharges effectively, ensuring continuous system operation.
- 5Compliance with IEC Standards: Meets IEC test classification I T1 and EN type T1 standards, ensuring compliance with international safety regulations for electrical protection devices.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Product type | Combination type | IEC test classification | I
T1 |
EN type | T1 | IEC power supply system | TT
TN-S |
Type | DIN rail module, one-piece | Number of positions | 4 |
Surge protection fault message | none | Overvoltage category | III |
Pollution degree | 2 | Nominal frequency f | 50 Hz
60 Hz |
Nominal voltage U | 230 V AC (400 V AC) | Connection method | Screw connection |
Screw thread | M5 | Tightening torque, min | 4.5 Nm |
Stripping length | 14.5 mm | Conductor cross section flexible min. | 0.5 mm² |
Conductor cross section flexible max. | 25 mm² | Conductor cross section, rigid min. | 0.5 mm² |
Conductor cross section, rigid max. | 35 mm² | Width | 70.4 mm |
Height | 95 mm | Depth | 65.7 mm |
Horizontal pitch | 4 Div. | Flammability rating according to UL 94 | V0 |
Housing material | PA-GF | Open side panel | No |
Direction of action | 3L-N & N-PE | Nominal frequency f | 50 Hz
60 Hz |
Maximum continuous operating voltage U | 350 V AC | Maximum continuous operating voltage U | 260 V AC |
Residual current I | ≤ 0.1 mA | Standby power consumption P | ≤ 26 mVA |
Nominal discharge current I | 35 kA | Nominal discharge current I | 50 kA |
Maximum discharge current I | 35 kA | Maximum discharge current I | 50 kA |
Impulse discharge current (10/350) µs, charge | 17.5 As | Impulse discharge current (10/350) µs, specific energy | 306 kJ/Ω (L-N) |
Impulse discharge current (10/350) µs, peak value l | 35 kA (L-N) | Follow current quenching capacity I | 1.5 kA |
Follow current interrupt rating I | 500 A | Voltage protection level U | ≤ 5 kV |
Voltage protection level U | ≤ 5 kV | Response time t | ≤ 100 ns |
Response time t | ≤ 100 ns | Response time t | ≤ 100 ns |
Max. backup fuse with branch wiring | 400 A (gL) | Degree of protection | IP20 |
Ambient temperature (operation) | -40 °C ... 85 °C | Permissible humidity (operation) | ≤ 95 % |
Standards/regulations | EN 60664-1 / EN 61643-11 | Standards/regulations | IEC 61643-1
DIN EN 61643-11
DIN EN 61643-11/A11 |
Standards/specifications | IEC 61643-1 | Note | 2005 |
Standards/specifications | DIN EN 61643-11 | Note | 2002 |
Standards/specifications | DIN EN 61643-11/A11 | Note | 2007 |
Mounting type | DIN rail: 35 mm |
Specifications may be subject to change without notice