FN3552003

## **Ultra-compact Low Leakage current EMC/EMI Filter** 

Ultra-compact four-wire filter for applications lacking space Exceptional low operating leakage current Equally suitable for star and delta power networks 

Approvals & Compliances 

## **Features and Benefits** 

## Performance indicators 

The FN 355 family of three-phase and neutral line filters provides a cost-effective interference suppression solution for a wide variety of applications 

Available in four versions, with current ratings from 3 to 20 A, the filters employ a single-stage four-wire LC circuit with saturating resistant chokes, and have a very low operational leakage current 

FN 355 filters are contained within an extremely compact metal housing, making them ideal for use in situations where space is at a premium 

## **Typical Applications** 

## **Technical Specifications** 

|**Maximum continuous operating voltage**|3x 440/250 VAC|
|---|---|
|**Operating frequency**|DC to 400 Hz|
|**Rated currents**|3 to 20 A|
|**High potential test voltage**|P/N –> E 2000 VAC for 2 sec|
||P –> P 1350 VDC for 2 sec|
||P -> N 800 VAC for 2 sec|
|**Overload capability**|4x rated current at switch on,|
||1.5x rated current for 1 minute, once per hour|
|**Temperature range (operation and storage)**|-25°C to +100°C (25/100/21)|
|**Flammability corresponding to**|UL 94 V-2 or better|
|**Design corresponding to**|UL 1283, CSA 22.2 No. 8 1986, IEC/EN 60939|
|**MTBF @ 40°C/230 V (Mil-HB-217F)**|850,000 hours|



Office equipment Medical equipment General purpose four-wire filtering Applications with tight space conditions 

## Typical electrical schematic 

**Schaffner Group DATA** SHEET 05. Jul 2022 

2 3-Phase Filters with Neutral 

## **Filter Selection Table** 

|**Filter**|**Rated current**|**Leakage current***|**Power loss**||**Input/Output**|**Input/Output**||
|---|---|---|---|---|---|---|---|
||**@ 40°C (25°C)**|**@ 440 VAC/50 Hz**|**@ 25 °C/ 50Hz**||**connections**||**weight**|
||**[A]**|**[mA]**|**[W]**||||**[kg]**|
|**FN 355-3-05**|3 (3.4)|0.0|1.4||-05||0.15|
|**FN 355-6-05**|6 (6.9)|0.0|1.5||-05||0.21|
|**FN 355-10-05**|10 (11.5)|0.0|1.8||-05||0.25|
|**FN 355-20-06**|20 (23)|0.1|3.4||-06||0.29|
|**FN 355-20-03**|20 (23)|0.1|3.4|-03|||0.29|
|**FN 355-30-44**|30 (34)|0.2|4.1|||-44|0.44|



* Standardized calculated leakage current acc. IEC60939 under normal operating conditions. 

## **Typical Filter Attenuation** 

Per CISPR 17; A=50 Ω/50 Ω sym; B=50 Ω/50 Ω asym; C=0.1 Ω/100 Ω sym; D=100 Ω/0.1 Ω sym 

3 A types 

6 A types 10 and 30A types 

> 3 | 3-Phase Filters with Neutral | **Schaffner Group DATA** SHEET 05. Jul 2022 

## **Mechanical Data** 

**==> picture [545 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Filters with faston terminals (3 to 20 A types) Filters with clamp terminals with M4 screw (20 A types)<br>**----- End of picture text -----**<br>


**==> picture [153 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Filters with terminal blocks (30 A type)<br>**----- End of picture text -----**<br>


All dimensions in mm; 1 inch = 25.4 mm Tolerances according: ISO 2768-m / EN 22768-m 

Please visit www.schaffner.com to find more details on connectors. 

||**-44**|
|---|---|
|**Solid wire**|0.5-10 mm2|
|**Flex wire**|0.5-6 mm2|
|**Flex wire AWG**|AWG 20-8|
|**Recommended torque**|1.0-1.2 Nm|



**Schaffner Group DATA** SHEET 05. Jul 2022 

4 3-Phase Filters with Neutral 

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