# Filters

**Power Filters**

Power Filters are used to prevent signals entering an RF shielded enclosure via power cabling penetrating the RF shielded enclosure. The filter configuration can be varied to cater for client requirements including multiple circuits, multiple phases, supply frequency, Voltage, Current and attenuation performance. Signal cables will require a low current signal cable with sufficient bandwidth to allow the required signal to pass through the filter. DC power filters can also be provided to cater for high currents.

Compliance Engineering supplies a wide range of high performance, high power, EMP, Tempest, EMC and Signal filters to a wide range of industries including; medical, defence and telecommunications.

**Single Phase Filters**

**Single****–****Phase**** (**EMI) **filters** are general-purpose filters designed to suppress undesirable electrical disturbances in power lines. **Single****–****Phase** EMI **filters** limit the amplitude of interfering voltages on AC power lines and prevent them from propagating into or out of the filtered equipment. These filters are available as a single stage general purpose filter or a multi-stage high performance filter.

**Three Phase Filters**

**Three–phase mains filters** filter interferences in both directions – from the consumer to the network and from the network to the consumer. Typical applications include frequency inverters, wind turbines or power supplies and are available in various current ratings.

**Tubular Filters**

**Tubular (EMI) filters **are general purpose filters designed to supress undesirable

electrical disturbances in power lines both AC or DC.

• Tubular – DTC, FTC Series

• Compact, High Current

• Provide excellent insertion loss until high frequency

• High reliability and wide temperature environments

RF Shielded Enclosure, Faraday Cage, RF Shielded Room

**Shielded Enclosure Filters**

Shielded room filters are essential in various industrial and military/government applications due to their excellent noise-mitigation feature. These are commonly used for applications that require the absence of external electrical noise, such as EMI testing, signal processing, secure communication etc.

A two line 32A mains power filter is normally supplied with each enclosure, however the filter configuration can be varied to cater for client requirements including 3 phase, different supply frequency, Voltage, Current, Leakage to earth and Performance.

**High Performance**

### Stainless Steel Power Line Filters (C52 Series)

*(Note: Refer to C52-H series filters for increased performance over C52 series)*

#### Single Phase, 2 Line – Power Filters

Type | I (A) | V (rms) L-L | Leakage Current | Performance | Figure |

CEP-2X16C52-JCL | 2 X 16 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X30C52-JCL | 2 X 32 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X50C52-JCL | 2 X 50 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X70C52-JCL | 2 X 70 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X100C52-JCL | 2 X 100 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X200C52-JCL | 2 X 200 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 2 |

#### Three Phase, 4 Line – Power Filters

Type | I (A) | V (rms) L-L | Leakage Current | Performance | Figure |

CEP-4X16C52-JCL | 4 X 16 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X30C52-JCL | 4 X 32 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X50C52-JCL | 4 X 50 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X70C52-JCL | 4 X 70 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X100C52-JCL | 4 X 100 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X200C52-JCL | 4 X 200 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 4 |

**High Performance**

### Stainless Steel Power Line Filters (C52-H Series)

*Note: These filters provide higher differential mode performance compared to C52 series*

#### Single Phase, 2 Line – Power Filters

Type | I (A) | V (rms) L-L | Leakage Current | Performance | Figure |

CEP-2X16C52-H-JCL | 2 X 16 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X30C52-H-JCL | 2 X 32 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X50C52-H-JCL | 2 X 50 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X70C52-H-JCL | 2 X 70 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X100C52-H-JCL | 2 X 100 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 1 |

CEP-2X200C52-H-JCL | 2 X 200 | 250 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 5 |

#### Three Phase, 4 Line – Power Filters

Type | I (A) | V (rms) L-L | Leakage Current | Performance | Figure |

CEP-4X16C52-H-JCL | 4 X 16 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X30C52-H-JCL | 4 X 32 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X50C52-H-JCL | 4 X 50 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X70C52-H-JCL | 4 X 70 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X100C52-H-JCL | 4 X 100 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 3 |

CEP-4X200C52-H-JCL | 4 X 200 | 440 VAC | ≤0.2A@220VAC/50Hz | 100dB, 14K-40GHz | 6 |

**High Performance**

Power Line Filters (C5 Series)

Power Line Filters (C5 Series)

#### Single Phase (C5 Series), 2 Line – Power Filters

Type | I (A) | Cable Size | Leakage Current | Performance |

CEP-2X16C5 | 2 X 16 | 4 mm2 | ≤1A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X30C5 | 2 X 32 | 6 mm2 | ≤1A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X50C5 | 2 X 50 | 10 mm2 | ≤1.5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X70C5 | 2 X 70 | 16 mm2 | ≤1.5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X100C5 | 2 X 100 | 25 mm2 | ≤3A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X150C5 | 2 X 150 | 50 mm2 | ≤5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X200C5 | 2 X 200 | 70 mm2 | ≤5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X250C5/60 | 2 X 250 | Busbar | ≤6A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X300C5/60 | 2 X 300 | Busbar | ≤6A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X600C5/60 | 2 X 600 | Busbar | ≤6A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X800C5/60 | 2 X 800 | Busbar | ≤6A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-2X1000C5/60 | 2 X 1000 | Busbar | ≤6A@220VAC/50Hz | 100dB, 14K-40GHz |

#### Three Phase (C5 Series), 4 Line – Power Filters

Type | I (A) | Cable Size | Leakage Current | Performance |

CEP-4X16C5 | 4 X 16 | 4 mm2 | ≤1.5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X30C5 | 4 X 32 | 6 mm2 | ≤1.5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X50C5 | 4 X 50 | 10 mm2 | ≤1.5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X70C5 | 4 X 70 | 16 mm2 | ≤1.5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X100C5 | 4 X 100 | 25 mm2 | ≤5A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X150C5 | 4 X 150 | 50 mm2 | ≤6A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X200C5 | 4 X 200 | 70 mm2 | ≤6A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X250C5/60 | 4 X 250 | Busbar | ≤8A@220VAC/50Hz | 100dB, 14K-40GHz |

CEP-4X300C5/60 | 4 X 300 | Busbar | ≤8A@220VAC/50Hz | 100dB, 100K-40GHz |

CEP-4X600C5/60 | 4 X 600 | Busbar | ≤8A@220VAC/50Hz | 100dB, 100K-40GHz |

CEP-4X800C5/60 | 4 X 800 | Busbar | ≤8A@220VAC/50Hz | 100dB, 100K-40GHz |

CEP-4X1000C5/60 | 4 X 1000 | Busbar | ≤8A@220VAC/50Hz | 100dB, 100K-40GHz |

**High Performance**

Ground Wire Filters (C5-G Series)

Ground Wire Filters (C5-G Series)

#### 1 Line (C5-G Series) – Ground Wire Filters

Type | I (A) | Cable Size | Performance | Figure |

CEP-10C5-G | 1 X 10 | 4 mm2 | 100dB, 14K-40GHz | 1 |

CEP-16C5-G | 1 X 16 | 4 mm2 | 100dB, 14K-40GHz | 1 |

CEP-30C5-G | 1 X 32 | 6 mm2 | 100dB, 14K-40GHz | 1 |

CEP-50C5-G | 1 X 50 | 10 mm2 | 100dB, 14K-40GHz | 1 |

CEP-70C5-G | 1 X 63 | 16 mm2 | 100dB, 14K-40GHz | 1 |

CEP-100C5-G | 1 X 100 | 25 mm2 | 100dB, 14K-40GHz | 2 |

CEP-150C5-G | 1 X 150 | 50 mm2 | 100dB, 14K-40GHz | 2 |

CEP-200C5-G | 1 X 200 | 70 mm2 | 100dB, 14K-40GHz | 2 |

**Medium Performance**

Power Line Filters (A5 Series)

Power Line Filters (A5 Series)

#### Single Phase (A5 Series), 2 Line – Power Filters

Type | I (A) | Cable Size | Leakage Current | Performance |

CEP-2X16A5 | 2 X 16 | 4 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-2X30A5 | 2 X 32 | 6 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-2X50A5 | 2 X 50 | 10 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-2X70A5 | 2 X 70 | 16 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-2X100A5 | 2 X 100 | 25 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-2X150A5 | 2 X 150 | 50 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-2X200A5 | 2 X 200 | 70 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 150kHz-40GHz |

#### Three Phase (A5 Series), 4 Line – Power Filters

Type | I (A) | Cable Size | Leakage Current | Performance |

CEP-4X16A5 | 4 X 16 | 4 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-4X30A5 | 4 X 32 | 6 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-4X50A5 | 4 X 50 | 10 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-4X70A5 | 4 X 70 | 16 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-4X100A5 | 4 X 100 | 25 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-4X150A5 | 4 X 150 | 50 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 150kHz-40GHz |

CEP-4X200A5 | 4 X 200 | 70 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 150kHz-40GHz |

**Medium Performance**

Power Line Filters (B5 Series)

Power Line Filters (B5 Series)

#### Single Phase (B5 Series), 2 Line – Power Filters

Type | I (A) | Cable Size | Leakage Current | Performance |

CEP-2X16B5 | 2 X 16 | 4 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-2X30B5 | 2 X 32 | 6 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-2X50B5 | 2 X 50 | 10 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-2X70B5 | 2 X 70 | 16 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-2X100B5 | 2 X 100 | 25 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-2X150B5 | 2 X 150 | 50 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-2X200B5 | 2 X 200 | 70 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 100kHz-40GHz |

#### Three Phase (B5 Series), 4 Line – Power Filters

Type | I (A) | Cable Size | Leakage Current | Performance |

CEP-4X16B5 | 4 X 16 | 4 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-4X30B5 | 4 X 32 | 6 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-4X50B5 | 4 X 50 | 10 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-4X70B5 | 4 X 70 | 16 mm2 | ≤0.2A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-4X100B5 | 4 X 100 | 25 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-4X150B5 | 4 X 150 | 50 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 100kHz-40GHz |

CEP-4X200B5 | 4 X 200 | 70 mm2 | ≤0.5A@220VAC/50Hz | 100dB, 100kHz-40GHz |

**Signal Line Filters**

#### RF Shielded Enclosure, Faraday Cage, RF Shielded Room

Model | Voltage | Current | Impedance Ω / L-L | Lines | Bandwidth | Figure | Application |

CES-XL-56KB-100 | 200 VDC | 1 A | 100 | 2 | 56 kB | 1 | Analog signal, switching signal |

CES-XL-56KB-600 | 200 VDC | 1 A | 600 | 2 | 56 kB | ||

CES-XL-20KB-5000 | 30 VDC | 0.006 A | 5000 | 2 | 20 kB | ||

CES-XL-4-8 | 30 VDC | 2 A | 8 | 2 | 4 kB | ||

CES-XL-3 | 250 VDC | 0.3 A | 600 | 2 | 0 - 3.4 kHz | ||

CES-XL-8 | 250 VDC | 0.3 A | 600 | 2 | 0 - 7 kHz | ||

CES-XL-384 | 250 VDC | 0.3 A | 600 | 2 | 0 - 384 kHz | ||

CES-XL-4-16 | 30 VDC | 2 A | 16 | 2 | 4 kB | ||

CES-XL-4-100 | 125 VDC | 1 A | 100 | 2 | 4 kB | ||

CES-XL-4-140 | 125 VDC | 0.5 A | 140 | 2 | 4 kB | ||

CES-XL-4-200 | 125 VDC | 0.5 A | 200 | 2 | 4 kB | ||

CES-XL-4-300 | 125 VDC | 1 A | 300 | 2 | 4 kB | ||

CES-XL-4-5000 | 125 VDC | 0.025 A | 5000 | 2 | 4 kB | ||

CES-XL-1-100 | 250 VDC | 1 A | 100 | 2 | 1 kB | ||

CES-XL-1-40 | 250 VDC | 3 A | 40 | 2 | 1 kB | ||

CES-XL-1-20 | 250 VDC | 5 A | 20 | 2 | 1 kB |

Model | Voltage | Current | Lines | Bandwidth | Figure | Application |

CES-XL-K2 | 250 VAC | 2 A | 2 | 100 kHz | 2 | AC/DC switching signal, air-con signal, voice, door access control |

CES-XL-K6 | 250 VAC | 2 A | 6 | 100 kHz | 6 | |

CES-XL-K12 | 250 VAC | 2 A | 12 | 100 kHz | 7 | |

CES-XL-K16 | 250 VAC | 2 A | 16 | 100 kHz | 8 | |

CES-XL-K20 | 250 VAC | 2 A | 20 | 100 kHz | 9 | |

CES-XL-20K | 250 VDC | 0.3 A | 2 | 20 kHz | 2 | Telephone, fax and DC switching signal |

CES-XL-V1 | 100 VDC | 1 A | 1 | 6 MHz | 3 | Video system control |

CES-XL-V2-1-M | 100 VDC | 1 A | 2 | 6 MHz | 4 | Emergency telephone, Fire alarm, monitor, door access control |

CES-XL-V4-1-M | 100 VDC | 1 A | 4 | 6 MHz | 4 | |

CES-XL-V8 | 100 VDC | 0.1 A | 8 | 100 MB/s | 5 | Network data < 100 MB/s |

**EMP Filters**

The circuit designs of the filters are individual discrete lines for full performance in both common and differential modes. The performance is maintained under all current loading conditions across the full frequency spectrum, and the discrete line construction makes the filters fully electrically versatile in respect of connecting to the power supply. The mechanical design of the filters allows them to be installed either outside or inside of an EMP/HEMP protected area. The surge arrestors fitted to the filters makes them suitable for electrical circuits also protecting against the effects of secondary lightning.

### Installation & Precautions

Power, signal, and communication lines need to run through a power filter. Electrical filters eliminate the unwanted RF signals by displacing them to ground. Every conductor which penetrates the shield, including neutral and signal return lines, must be filtered. Grounding wires must be bonded directly to the shield via the ground buss bar.

### Installation & Precautions

1. Filters contain a certain amount of leakage current. The lids of the filter (or the shielded enclosure, cabinet) must be connected to the earth. Confirm the earth connection has been correctly terminated before energising the filter to ensure personal safety.

2. Discharge the filter before disconnection any of the supply terminals. Ensure that the discharge current does not exceed 1A.

3. 3 phase, 4 line filters can be used as a single phase filter. That is, any live wire (A, B, C) together with N line. However, two (2) single phase filters cannot be combined to form a 3 phase 4 line filter.

4. Mains filters must be installed in a dry and well ventilated environment. Take adequate protective measures to avoid water and dust.

5. Ensure that there is no insulation coating on the shielded enclosure when bonding the rf mains filter to its surface. Remove any insulation layers around the installation hole to the extent larger than the outside diameter of copper gasket. To ensure there is enough electrical contact between the bottom of the filter lids and the metal wall of the shielded enclosure.

6. Drill a hole as the same size as the waveguide before installing the filters in the shielded enclosure or cabinet. Put one piece of the copper grid in the waveguide first, then feedthrough the hole in the shielded enclosure or cabinet. Place another shielded copper grid and gasket to the waveguide connector and tighten up the nut in order to make a good compression seal.

7. Both the inlet and outlet ports are clearly labelled. Strictly follow the logo marked on each terminal.

Single phase → live wire (L), null wire (N), and Ground wire (G or PE)

Three phase 4 line → phase wire (A, B, C), neutral wire (N), and Ground wire (G or PE)

8. Take note of the mounting torque setting (see below). The terminals may be damaged if the mounting torque is excessive.

• Recommended mounting torque for M4 screw is 1.14Nm—1.9Nm

• Recommended mounting torque for M6 screw is 1.5Nm—2.5Nm

• Recommended mounting torque for M8 screw is 3Nm—5Nm

• Recommended mounting torque for M10 screw is 4.8Nm—8Nm

9. Close the cover plate once all mains wires are correctly terminated and tension all the bolts to their correct torque settings.

10. Pay special attention that the access cover plate along with its conductive gasket seal, is making a good 360 degree compression with the outer case. Ensuring that there is good electrical contact will avoid any rf leakage caused by gasket deformation or poor compression.