Made in USA
UL Listed

HEMP Filters

  1. Filters are listed per UL specification #1283
  2. Temperature Range: Operating -55°C to +85°C
  3. Enclosures are made from cold rolled steel with continuously welded seams
  4. Filter ground path connecting surfaces shall be tin plated or stainless steel
  5. Conduit hubs or clearance holes may be provided if specified when ordering
  6. Each phase filter is individually removable
  7. Internal filters are filed with a non-flammable impregnant and hermetically sealed
  8. Legs for floor mounting may be provided if specified when ordering
  9. Filters for 300AMP and up have 6” x 2” mounting U-Channel

Series DMC-FCHS-HEMP Single Individual Filter Elements

HEMP filter

Specifications

ELECTRICAL

CURRENT RATING: The filters shall be capable of withstanding 140% of rated current for 15 minutes without any deterioration.

INSERTION LOSS: The HEMP Filters shall provide the specified insertion loss of 80 db minimum over its indicated frequency range when measured in accordance with the applicable MIL-STD-220C by a government approved laboratory.

VOLTAGE: The filters shall be capable of operating continuously at full- rated voltage and of withstanding an initial voltage test of twice the rated voltage for one minute.

 

OPERATING TEMPERATURE

FILTER ELEMENT: Assembly: from 0°F to 104°F (-18°C to 40°C) at rated voltage and full load operations Components: from 0°F to 150°F (-18°C to 65°C) at rated voltage and full load operation

MECHANICAL

CASE: The HEMP Filters case shall be made of cold-rolled steel.

FINISH: All HEMP Filters cases shall be made corrosion-resistant with suitable lacquer over primer, All unfinished grounding surfaces shall be protected by suitable plating.

IMPREGNANT: The impregnant shall be non-flammable as classified by Underwriters Laboratories.

TERMINALS: The terminals shall be made of high temperature alumina ceramic. The ceramic terminal shall have a flexible insulated lead, one end of which is permanently affixed to the terminal, The other end shall be terminated in a permanently affixed lug which shall be mounted on approved flame-retardant insulator.

Part Number Current Rating (AMP) Voltage Rating Frequency Rating (Hz) Dimensions (INCHES) Weight Approx. (LBS)
LG / LL VAC VDC A±.060 B±.060 C±.060 D±.060 E±.060
DMC-FCULX-4 X 30E2 HEMP 4 x 30 277 / 480 600 60 28 38 6 64 26 220
DMC-FCULX-4 X 60E2 HEMP 4 x 60 277 / 480 600 60 28 41 8 64 29 315
DMC-FCULX-4 X 100E2 HEMP 4 x 100 277 / 480 600 60 57 60 10 80 48 520
DMC-FCULX-4 X 225E2 HEMP 4 x 225 277 / 480 600 60 28 60 16 64 48 750
DMC-FCULX-4 X 250E2 HEMP 4 x 250 277 / 480 600 60 28 60 16 64 42 750
DMC-FCULX-4 X 300E2 HEMP 4 x 300 277 / 480 600 60 60 84 16 66 44 850
DMC-FCULX-4 X 400E2 HEMP 4 x 400 277 / 480 600 60 60 84 16 66 44 975
DMC-FCULX-4 X 500E2 HEMP 4 x 500 277 / 480 600 60 60 84 16 66 44 1075
DMC-FCULX-4 X 600E2 HEMP 4 x 600 277 / 480 600 60 45 84 34 38 44 1600
DMC-FCULX-4 X 800E2 HEMP 4 x 800 277 / 480 600 60 60 72 34 66 44 2400
DMC-FCULX-4 X 1000E2 HEMP 4 x 1000 277 / 480 600 60 60 72 34 66 44 2500
DMC-FCULX-4 X 1200E2 HEMP 4 x 1200 277 / 480 600 60 60 72 34 64 44 2750
DMC-FCULX-4 X 1500E2 HEMP 4 x 1500 277 / 480 600 60 60 72 34 64 44 2900

  *All Filter Cabinets are also available in 3 line and 4 line configuration

  PART NO   CURRENT RATING (AMP)   VOLTAGE RATING (VAC)   FREQ RATING (HZ)   WIRE   SIZE DIMENSION (INCH) INSERTION LOSS (DB)
A B C 100kHz 1MHz 10MHz 100MHz 1GHz
DMC-FCH-800- E2  800  277  0-60 2.5 x 0.5 Bus Bar 35 17 14 80  80  80 80 80
DMC-FCH-400- E2  400  277 0-60  250MCM 32 16  12 80 80 80 80 80
DMC-FCH-100- E2  100  277 0-60  #2  30 14 10 80 80 80 80 80
DMC-FCH-60- E2  60  277  0-60  #10 28  14  8 80  80 80 80 80
DMC-FCH-30- E2  30  277 0-60 #10  28  14 6 80 80  80  80 80
4.7
4.7 out of 5 stars (based on 6 reviews)
Excellent67%
Very good33%
Average0%
Poor0%
Terrible0%

Reliable Solution for EMC and Antenna Testing

March 13, 2026

We needed a reliable chamber for EMC and antenna performance testing, and DMCRF provided exactly what we were looking for. The chamber’s RF shielding and absorber layout provide excellent isolation from external signals. Highly recommended for research labs and testing facilities.

Avatar for Liam Thompson
Liam Thompson

High Quality Engineering and Design

March 13, 2026

DMCRF delivered a well-designed anechoic chamber tailored to our RF testing requirements. The absorber quality, shielding performance, and structural design are outstanding. Our team has noticed a significant improvement in measurement accuracy since the installation.

Avatar for Benjamin Clark
Benjamin Clark

Excellent Signal Integrity Support

March 13, 2026

With sharp selectivity and minimal insertion loss, the filters help reduce noise and interference in both test and real‑world systems.

Avatar for Adele
Adele

Wide Frequency Coverage & Custom Options

March 13, 2026

Supporting MHz to multi‑GHz ranges with low VSWR and selectable configurations, these filters fit diverse RF applications.

Avatar for David Suzuki
David Suzuki

High‑Performance RF Filtering Solution

March 13, 2026

These RF filters effectively block unwanted frequencies while passing the desired band, improving signal clarity in RF systems.

Avatar for William
William