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EMI & EMC Solutions > HEMP Filters Power Line > Power Line HEMP Filters High Performance > Item # A-10567  
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Item # A-10567, 20 Ampere (A) Current Power Line Stand Alone HEMP Filter High Performance

List Price QUOTE

  • Voltage Rating: 277/480 VAC @ 60 Hz
  • Current Rating: 5 through 150 amperes
  • HEMP Compliance: Per MIL-STD-188-125-1 and MIL-STD-188-125-2 as Power Line (Intrasite) point of entry filter for short (E1) and intermediate (E2) pulses.
  • Insertion Loss: high performance (curve 2) per MIL-STD-220
  • Leakage Current: < 10% of rated current 10 through 150 amperes, <1 amp for 5 amp filters
  • Insulation Resistance: Per MIL-PRF-15733, prior to discharge resistor installation.
  • Dielectric Withstanding Voltage: 2250 VDC line-to-chassis per MIL-STD-202, Method 301 prior to surge arrestor and discharge resistor installation
  • Voltage Drop: Less than 1% of rated voltage per paragraph 4.6.8 of MIL-PRF-15733
  • Voltage Discharge: Discharge to less than 30 Volts within 30 s after removal of power
  • Operating Temperature: -40 ºC to +65 ºC
  • Storage Temperature: -55 ºC to +105 ºC


Specifications  · Dimensions  · Enclosure  · Features  · Note




Voltage Rating (AC)

277 V


60 Hz


20 A

Insertion Loss Curve

Number of Circuits


Estimated Weight

100 lb

High Altitude Electromagnetic Pulse (HEMP) Compliance

Per MIL-STD-188-125-1 and MIL-STD-188-125-2 as Power Line (Intrasite) Point of Entry Filter for Short (E1) and Intermediate (E2) Pulses.

Minimum Insertion Loss

100 dB @ 14 kHz to 10 GHz

Leakage Current

< 10% of Rated Current 10 through 150 Amperes, < 1 Amp for 5 Amp Filters

Insulation Resistance

Per MIL-PRF-15733, Prior to Discharge Resistor Installation.

Dielectric Withstanding Voltage

2250 VDC Line-to-Chassis Per MIL-STD-202, Method 301 Prior to Surge Arrestor and Discharge Resistor Installation

Voltage Drop

Less than 1% of Rated Voltage Per Paragraph 4.6.8 of MIL-PRF-15733

Voltage Discharge

Discharge to Less than 30 Volts within 30 s After Removal of Power

Operating Temperature

-40 to +65 ºC

Storage Temperature

-55 to +105 ºC




Dimension A

12.0 in

Dimension B

37.0 in

Dimension C

5.5 in

Dimension D

36.0 in

Dimension E

11.0 in

  • Modified NEMA 1 type enclosure
  • Cabinets: Stainless steel construction
  • Stand alone filters and inserts: Cold rolled steel construction with a corrosion resistant plating
  • Epoxy paint optional
  • Shielding effectiveness on clean side greater than 100 dB from 14 kHz to 10 GHz
  • Dual removable access covers.

  • Inductive input
  • Individually Filtered Lines
  • Surge arrestors V481BA60 included
  • Custom options available

Specifications subject to change.


·  Curve 2, High Performance Minimum Insertion Loss


Power Line HEMP Filters
(PDF, 370KB)

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