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Phoenix Contact 2794123 Mains Interference Filter

The Phoenix Contact NEF 1-1 is a mains interference filter designed for use in single-phase circuits. This DIN rail module provides effective filtering to reduce electromagnetic interference (EMI) and protect sensitive equipment from voltage surges. It features a universal foot for mounting on NS 32 and NS 35/7.5 rails, making it versatile for various industrial applications. The NEF 1-1 is suitable for non-heating apparatus connections and power supplies, ensuring reliable and safe operation. Its robust construction and compliance with standards like IEC 60939-2 and VDE 0110-1 make it a dependable solution for noise reduction and surge protection in a wide range of electrical systems.

Authorized Distributors
Part No:2794123
Stock:0
Inv Date:05-29-2026
Price: Unit price: $128.96
Buy/RFQ:
Part No:2794123
Stock:0
Inv Date:05-28-2026
Price: Unit price: $131.54
Buy/RFQ:

Phoenix Contact 2794123 Mains Interference Filter Specifications:

  • Packing unit: 1 pc
  • Weight per Piece (excluding packing): 95.16 g
  • Custom tariff number: 85363010
  • Country of origin: Germany
  • Height: 79.4 mm
  • Width: 25 mm
  • Depth: 84.15 mm
  • Degree of protection: IP20
  • Ambient temperature (operation): -25 °C ... 100 °C (HMF)
  • Housing material: PA
  • Flammability rating according to UL 94: V2
  • Color: black
  • Standards for cearances and creepage distances: IEC 60664-1
  • Mounting type: DIN rail: 35 mm
  • Number of positions: 2
  • Direction of action: 1L-N & N-PE
  • Nominal voltage UN: 240 V AC
  • Max. operating voltage Umax: 264 V AC
  • Arrester rated voltage UC(L-N): 264 V AC
  • Arrester rated voltage UC(L-PE): 264 V AC
  • Nominal frequency fN: 50 Hz / 60 Hz
  • Nominal current IN: 1 A (40°C)
  • Operating effective current ICat UC: ≤ 0.25 mA
  • Residual current IPE: ≤ 0.5 mA
  • Inductivity in series: 2x 10 mH
  • Capacity (L-N): 2x 100 nF (X2)
  • Capacity (L-PE): 2x 2.2 nF (Y2)
  • Max. required back-up fuse: 1 A (gL)
  • Input attenuation aE, sym.: ≥ 65 dB (50 Ω/ 1 MHz)
  • Input attenuation aE, asym.: ≥ 45 dB (50 Ω/ 1 MHz)
  • Connection method: Screw connection
  • Connection type IN: Screw terminal blocks
  • Connection type OUT: Screw terminal blocks
  • Screw thread: M3
  • Tightening torque: 0.8 Nm
  • Stripping length: 8 mm
  • Conductor cross section flexible min.: 0.2 mm²
  • Conductor cross section flexible max.: 2.5 mm²
  • Conductor cross section solid min.: 0.2 mm²
  • Conductor cross section solid max.: 4 mm²
  • Conductor cross section AWG min.: 24
  • Conductor cross section AWG max.: 12
  • Standards and Regulations: IEC 60939-2
  • Discharge resistor: 1 MΩ
  • eCl@ss 4.0: 27140201
  • eCl@ss 4.1: 27130801
  • eCl@ss 5.0: 27130801
  • eCl@ss 5.1: 27130801
  • eCl@ss 6.0: 27130806
  • eCl@ss 7.0: 27130806
  • eCl@ss 8.0: 27130806
  • eCl@ss 9.0: 27130806
  • ETIM 2.0: EC000942
  • ETIM 3.0: EC000942
  • ETIM 4.0: EC000942
  • ETIM 5.0: EC000942
  • UNSPSC 6.01: 30212010
  • UNSPSC 7.0901: 39121610
  • UNSPSC 11: 39121610
  • UNSPSC 12.01: 39121610
  • UNSPSC 13.2: 39121620

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Frequently Asked Questions

Where can I buy Phoenix Contact 2794123?

You can click on the BUY or RFQ button to purchase 2794123 from an authorized Phoenix Contact distributor.

How do I troubleshoot issues or seek technical support for part 2794123?

You can download the 2794123 datasheet or visit the Phoenix Contact website for support.

Who is the manufacturer of 2794123?

Phoenix Contact

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