Official DistributorSKU
MPN
SFP 1-20/120AC/EX
Weight
0.615 kg
Series SFP
SFP 1-20/120AC/EX - EMC filter surge protection device
Device protection, according to type 3/class III, with mains interference filter to prevent high-frequency interference voltages, for 1-phase power supply networks with separate N and PE (3-conductor system: L1, N, PE), with remote indication contact. Can be used in potentially explosive areas in zone 2.
Technical Specifications
Product properties
| Product family | SFP |
| Type | DIN rail module, one-piece |
| Number of Positions | 2 |
| For country-specific use in | USA, CN, BR |
| Surge protection fault message | Optical, remote indicator contact |
| IEC test classification | III |
| IEC test classification | T3 |
| EN type | T3 |
Indicator/remote signaling
| Connection name | Remote fault indicator contact |
| Switching function | Changeover contact |
| Maximum operating voltage Umax. AC | 250 V AC |
| Max. operating current Imax | 1 A (250 V AC) |
| Max. operating current Imax | 0.25 A (250 V DC) |
| Max. operating current Imax | 1 A (48 V DC) |
| Switching capacity max. perm. | 0.25 A/250 V DC |
| Switching capacity max. perm. | 1 A / 48 V AC |
| Min. permissible switching capacity | 1 A/48 V DC |
| Min. permissible switching capacity | 100 mA / 12 V AC |
Input/output
| Connection Method | Screw terminal blocks |
| Screw thread | M3 |
| Tightening torque | 0.5 Nm ... 0.6 Nm |
| Tightening torque | 5 lbf-in. ... 7 lbf-in. |
| Conductor cross section flexible min. | 2.5 mm² |
| Conductor cross section flexible max. | 4 mm² |
| Conductor cross section, rigid min. | 2.5 mm² |
| Conductor cross section, rigid max. | 6 mm² |
Dimensions
| Width | 112 mm |
| Height | 93 mm |
| Depth | 79 mm |
Material specifications
| Flammability rating according to UL 94 | V-0 |
| Insulating material | ABS |
| Housing Material | Aluminum |
Mechanical data
| Open side panel | No |
Protective circuit
| Direction of action | L-N & L(N)-PE |
| Nominal frequency fN | 50 Hz |
| Nominal frequency fN | 60 Hz |
| Maximum continuous operating voltage UC (L-N) | 150 V AC |
| Maximum continuous operating voltage UC (L-PE) | 150 V AC |
| Rated load current IL | 20 A (40 °C) |
| Residual current IPE | ≤ 0.5 mA |
| Operating effective current IC at UC | ≤ 10 mA |
| Nominal discharge current In (8/20) µs (L-N) | 3 kA |
| Nominal discharge current In (8/20) µs (L-PE) | 3 kA |
| Maximum discharge current Imax (8/20) µs (L-N) | 10 kA |
| Maximum discharge current Imax (8/20) µs (L-PE) | 10 kA |
| Energy absorption symmetrical | 170 J |
| Enery absorption, asymmetrical | 2x 170 J |
| Voltage protection level Up (L-N) | ≤ 450 V (at 6 kV/3 kA) |
| Voltage protection level Up (L-PE) | ≤ 450 V (at 6 kV/3 kA) |
| Voltage protection level Up (N-PE) | ≤ 450 V (at 6 kV/3 kA) |
| Residual voltage at In | ≤ 450 V |
| Residual voltage at In | ≤ 450 V |
| Residual voltage at In | ≤ 450 V |
| Response time tA (L-N) | ≤ 25 ns |
| Response time tA (L-PE) | ≤ 25 ns |
| Response time tA (N-PE) | ≤ 25 ns |
| Inductivity in series | 2x 1 mH ±30 % (with current compensation) |
| Capacity (L-N) | 2 µF ±10 % (X2, FOW X2-250V) |
| Capacity (L-PE) | 2.2 nF ±20 % (Y, FOW X2-250V) |
| Capacity (N-PE) | 2.2 nF ±20 % (Y, FOW X2-250V) |
| Max. required back-up fuse | 20 A (gL/gG) |
| Max. required back-up fuse | 20 A (MCB, > 125 V, AIC: 14 kA) |
| Input attenuation aE, sym. | typ. 40 dB (≥ 500 kHz / 50 Ω) |
| Input attenuation aE, asym. | typ. 30 dB (≥ 1 MHz / 50 Ω) |
Filter data
| Clamping voltage ringwave (L-N) | 100 V (category A 100 kHz 6 kV/200 A) |
| Clamping voltage ringwave (L-N) | 195 V (category B 100 kHz 6 kV/500 A) |
| Clamping voltage ringwave (L-PE) | 390 V (category A 100 kHz 6 kV/200 A) |
| Clamping voltage ringwave (L-PE) | 390 V (category B 100 kHz 6 kV/500 A) |
| Discharge resistance | ≤ 390 kΩ |
Ambient conditions
| Degree of Protection | IP20 |
| Ambient Temperature (Operation) | -25 °C ... 40 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
Air clearances and creepage distances
| Standards/regulations | DIN VDE 0110-1 / IEC 60664-1 / IEC 61643-1 |
Standards
| Standards/regulations | IEC 61643-1 |
| Standards/regulations | EN 61643-11/A11 |
| Standards/regulations | UL 1449 |
| Standards/regulations | UL 1283 |
| Standards/regulations | IEC 61643-1 |
| Standards/regulations | EN 61643-11/A11 |
| Standards/specifications | IEC 61643-1 |
| Note | 2005 |
| Standards/specifications | DIN EN 61643-11/A11 |
| Note | 2007 |
| Standards/specifications | UL 1449 |
| Note | ed. 3: 2006 T4 for type 2 |
| Standards/specifications | UL 1283 |
| Note | ed. 5: 2005 |
Mounting
| Mounting Type | DIN rail: 35 mm |
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Additional Information
| Pack Size | 1 |
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