The filter herein described shall be designed for filtering of radio frequency interference and to meet the requirements of Military Specifications MIL-F-15733, where applicable. These filters may be used with other electrical devices to enable the devices to meet the requirements of MIL-I-26600, MIL-I-16910. MIL-I- 6181, MIL-I-11748, MIL-STD-461, 462, 463, FED-STD-222 and FCC Specification Part 18. Also, DCA specifications and others developed for special equipment and systems applications
| DMC Part No | Maximum Current Amperes | Maximum Line-to-ground Voltage | Power Line Frequency (Hz) | Dimensions | Approx. Wt. (Lbs.) | |||
| AC | DC | A | B | C | ||||
| DMC-FCL·14-25 | 25 | 277 | 600 | 0-60 | 18 ¼ | 4 | 4 ¼ | 13 |
| DMC-FCL·14·50 | 50 | 277 | 600 | 0-60 | 18 ¼ | 4 | 4 ¼ | 13 |
| DMC-FCL·14·100 | 100 | 277 | 600 | 0-60 | 18 ¼ | 4 | 4 ¼ | 13 |
| DMC-FCL·14-200 | 200 | 277 | 600 | 0-60 | 18 ¼ | 4 | 4 ¼ | 13 |
| DMC-FCL·140-25 | 25 | 277 | 600 | 0-400 | 18 ¼ | 4 | 4 ¼ | 13 |
| DC-FCL·140-50 | 50 | 277 | 600 | 0-400 | 18 ¼ | 4 | 4 ¼ | 13 |
| DMC-FCL·140-100 | 100 | 277 | 600 | 0-400 | 18 ¼ | 4 | 4 ¼ | 13 |
|
DMC-Part No |
Maximum Current (Amps) | Maximum Voltage | Power Line Frequency (Hz) |
Dimensions
A B C |
Approx. WT
(Lbs.) |
||
| VAC | VDC | ||||||
| Line-to-
ground |
Line-
to-line |
||||||
| DMC-FCL·112·25 | 25 | 277 | 480 | 800 | 60 | 34 4 ½ 4 ½ | 20 |
| DMC-FCL·112·50 | 50 | 277 | 480 | 800 | 60 | 34 4 ½ 4 ¾ | 25 |
| DMC-FCL·112·10 | 100 | 277 | 480 | 800 | 60 | 40 9 5 | 30 |
| DMC-FCL·112·15 | 150 | 277 | 480 | 800 | 60 | 40 15 5 ¼ | 60 |
| DMC-FCL·112·2O | 200 | 277 | 480 | 800 | 60 | 40 15 5 ¼ | 60 |
These filters are suitable for use in 3·phase systems up to 480 volts phase-to-phase Filters for 400 Hz power available upon request.
Specifications
GENERAL
The filter herein described shall be designed for filtering of radio frequency interference and to meet the requirements of Military Specifications MIL-F-15733, where applicable. These filters may be used with other electrical devices to enable the devices to meet the requirements of MIL-I-26600, MIL-I-16910. MIL-I- 6181, MIL-I-11748, MIL-STD-461, 462, 463, FED-STD-222 and FCC Specification Part 18. Also, DCA specifications and others developed for special equipment and systems applications
ELECTRICAL
CURRENT RATING: The filters shall be capable of withstanding 150% of rated current for 15 minutes without any deterioration.
INSERTION LOSS: The filter shall provide the specified insertion loss of 100 db minimum over its indicated frequency range when measured in accordance with the applicable MIL-STD-220A 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.
MECHANICAL
CASE: The filter case shall be made of cold-rolled steel.
CONSTRUCTION: Input and output terminals shall be completely enclosed in RF shielded compartments. Covers on the input and output RF shielded compartments shall be friction-fitted. Internal components shall be mounted and fixed to prevent damage when subjected to shock and vibration tests.
FINISH: All filter cases shall be made corrosion-resistant with suitable lacquer over primer, All unfinished grounding surfaces shall be protected by suitable plating.
IMPREGNANT: The impre9nant 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.
Frequently Asked Questions
RFI/EMC filters suppress unwanted electromagnetic noise on power and signal lines. They protect sensitive electronics and ensure reliable system performance.
They are used in industrial machinery, medical equipment, telecom systems, and shielded test facilities. Any system needing EMI suppression in this current range benefits.
These filters typically support 25 to 200 amps, depending on the model. This range accommodates small to medium industrial and test applications.
They meet MIL-STD-461, MIL-STD-1275, and IEC/CISPR standards. Compliance ensures validated EMI suppression for defense and commercial applications.
Voltage ratings typically go up to 600V AC or DC, depending on the model. Some high-power designs can handle even higher voltages for specialized applications.
Insertion loss usually ranges from 40 dB to 100 dB depending on frequency and design. Higher dB values indicate stronger attenuation of EMI signals.
Yes, many models support three-phase AC systems. They effectively suppress EMI across all phases for stable multi-phase operation.
Filters are typically housed in steel or aluminum enclosures with conductive coatings. Internal components include ferrite cores, capacitors, and surge-resistant elements.
Some designs include limited overload tolerance or protective fuses. Exceeding ratings may reduce lifespan or require external protection measures.
Yes, manufacturers offer tailored current, voltage, and frequency designs. Custom solutions ensure optimal EMI suppression for unique systems.
What Our Clients Say
Effective Filters for Cleaner Signals and Reliable Operation
September 24, 2026
We’re very pleased with these filters. Installation was straightforward, and they have helped reduce signal noise while improving machine response. The strong components and solid construction give us confidence in their long-term reliability. Overall, they’ve been a useful solution for our critical systems.
Rugged Filters for Industrial Interference Control
September 24, 2026
We’re very pleased with these filters for our industrial machinery. They have performed consistently under load and have helped reduce unwanted interference during operation. The rugged construction and neat finish also give the product a professional, durable feel. Overall, a dependable solution for our requirements.
Reliable Power Line Noise Reduction
September 21, 2026
We’re very pleased with this filter range for reducing power line noise. Our equipment has been noticeably more stable since installation, and the overall performance has been consistent. The build quality is also impressive and feels well suited for regular commercial use. Overall, a dependable solution for our requirements.
Durable EMI Filter for Professional Applications
September 21, 2026
We’re very pleased with this product for our EMI control applications. It handles the rated current smoothly while maintaining effective filtering performance during regular use. The strong case construction also gives it a durable and dependable feel. Overall, it has been a practical solution for our professional requirements.
Rugged Filters with Excellent Noise Suppression
August 27, 2026
We’re very impressed with the performance of these filters. They’ve done an excellent job of reducing conducted noise and unwanted interference, while the rugged housing feels built for long-term use. The professional finish is a nice touch, and performance has remained stable since installation. Overall, a smart investment for reliable power line protection.
