SFP 1-20/230AC - EMC filter surge protection device

Device protection, according to type 3/class III, with network interference suppression 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.

Product Details

Device protection with interference filter

Type DIN rail module, one-piece 
Product type Interference filters
Product family SFP
Number of positions 2
For country-specific use in D, A, I, NL, S, E, FIN, P
Surge protection fault message Optical, remote indicator contact
Insulation characteristics
Overvoltage category III
Pollution degree 2
IEC test classification III
EN type T3
Number of ports Two

Indicator/remote signaling
Connection name Remote fault indicator contact
Switching function Changeover contact
Operating voltage 12 V AC ... 250 V AC
250 V DC (250 mA DC)
Operating current 100 mA AC ... 1 A AC
1 A DC (48 V DC)

Connection method Screw terminal blocks
Screw thread M3
Tightening torque 0.5 Nm ... 0.6 Nm
4.5 lbf-in. ... 5.5 lbf-in.
Conductor cross section flexible 2.5 mm² ... 4 mm²
Conductor cross section solid 2.5 mm² ... 6 mm²
Conductor cross section AWG 14 ... 10

Dimensional drawing
Width 112 mm
Height 86.6 mm
Depth 79 mm

Color black
Flammability rating according to UL 94 V-0
Insulating material ABS
Housing material Aluminum

Mechanical data
Open side panel No

Mode of protection L-N
Direction of action L-N & L(N)-PE
Nominal voltage UN 240 V AC (TN)
240 V AC (TT - only in use with RCD)
240 V AC (IT - only in use with RCD)
Nominal frequency fN 50 Hz (60 Hz)
Maximum continuous voltage UC 264 V AC
Rated load current IL 20 A (40 °C)
Residual current IPE ≤ 0.6 mA
Standby power consumption PC ≤ 25 VA (at UREF)
≤ 27.5 VA (at UC)
Reference test voltage UREF 264 V AC
Nominal discharge current In (8/20) µs 5 kA
Combination wave UOC 10 kV (5 kA)
Voltage protection level Up ≤ 1 kV
TOV behavior at UT (L-N) 350 V AC (5 s / withstand mode)
457 V AC (120 min / safe failure mode)
TOV behavior at UT (L-PE) 457 V AC (5 s / withstand mode)
350 V AC (120 min / withstand mode)
1464 V AC (200 ms / safe failure mode)
TOV behavior at UT (N-PE) 1200 V AC (200 ms / safe failure mode)
Response time tA ≤ 25 ns
Capacity (L-N) 1 µF ±10 %
10 nF ±10 % (X2-275 V)
Capacity (L-PE) 2.2 nF ±20 % (Y2-250 V)
Capacity (N-PE) 2.2 nF ±20 % (Y2-250 V)
Max. required back-up fuse 20 A (MCB B/general purpose)
16 A (IT - MCB B/general purpose)
Input attenuation aE, sym. 20 dB (≥ 100 kHz / 50 Ω)
Input attenuation aE, asym. 30 dB (≥ 1 MHz / 50 Ω)
Short-circuit current rating ISCCR 5 kA AC (TN/TT)
1 kA AC (IT)
Filter data
Discharge resistance 820 kΩ

Ambient conditions
Degree of protection IP20
Ambient temperature (operation) -25 °C ... 70 °C
Ambient temperature (storage/transport) -25 °C ... 70 °C
Permissible humidity (operation) 5 % ... 95 %

Air clearances and creepage distances
Standards/regulations DIN VDE 0110-1 / IEC 60664-1 / IEC 61643-1
Standards/specifications IEC 61643-11
Standards/specifications EN 61643-11

Mounting type DIN rail: 35 mm

Item number 2859987
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key C11
Product Key CLC131
Catalog Page Page 208 (C-4-2019)
GTIN 4046356098175
Weight per Piece (including packing) 616.3 g
Weight per Piece (excluding packing) 616 g
Customs tariff number 85363010
Country of origin DE


ECLASS-9.0 27130806
ECLASS-10.0.1 27130806
ECLASS-11.0 27130806


ETIM 8.0 EC000942


UNSPSC 21.0 39121600


Approval ID: EAC-Zulassung


Approval ID: RU C-DE.*09.B.00169

REACh SVHC Lead 7439-92-1
Dechlorane Plus
Hexahydromethylphthalic anhydride
China RoHS Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Your advantages

Optimized protective effect with combined protective circuit for absorbing transient overvoltages for attenuating high-frequency interference
Symmetrical design of the protective circuit with surge protection components on the input and output sides of the filter
Protection against excessive heating with thermal monitoring of the protective circuit
Versatile in use with universal circuit design