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powerware csfi


CSFi - Din Rail Compact Surge Filter The CSFi is designed for mounting in distribution boards to provide secondary protection against power surges caused by external sources such as lightning strikes and substation switching as well as providing a measure of protection from surge events generated on the secondary side of the filter.

The CSFi is a 3-stage protection unit utilising primary and secondary MOV protection in conjunction with a Low-Q LC filter. In addition, the unit also provides filtering of the line harmonics, noise and RF transmitters with a cut-off frequency of <10kHz and a nominal attenuation of 45dB

All CSFi units are provided with indicators showing power and protection status. Alarms are indicated on the front panel of the unit. The alarm function provides a summary alarm output for protection degradation as well as power failure. The protection alarm is configured to partial protection failure. The summary alarm relay contacts provide remote signaling to other equipment.

Product Highlights


Surge suppression and filtering in a single package


3 mode protection


High surge suppression rating


Remote alarm contacts standard


3 stage protection


12 month warranty




Input voltage

200-250VAC 1phase

Service type

TT, TN, TN C-S or any single-phase system with a grounded neutral. This unit must not be connected to an ungrounded system

Energy Absorption

Primary protection L-N =370J
Primary common mode protection L-E &N-E =480J
Secondary protection L-N =225J
Secondary common mode protection L-E &N-E =480J
Aggregate rating = 1555J

Current rating – continuous

3 - 25A

Recommended max. over current protection

25A (C curve MCB 25A)

Protection modes

Line-Neutral, Line-Earth, Neutral-Earth

In 8/20us (Line-Neutral)
Nominal surge life

10kA x 20 hits

In 8/20us (Line-Earth) 
Nominal surge life

3kA x 20 hits

In 8/20us (Neutral-Earth)
Nominal surge life

3kA x 20 hits

Ismax 8/20us (Line-Neutral)
Max. surge life


Ismax 8/20us (Line-Earth)
Max. surge life


Ismax 8/20us (Neutral-Earth)
Max. surge life


Filter attenuation

45dB nominal above 1MHz

Internal protection (fusing)

All surge diverter connections are fused via HRC fuses to IEC269-2-1


6mm2 PCB Mounted Terminals


2 LED display,Power OK &Protection OK LEDs,Dry contact alarm relay output – 250Vac//32Vdc,5A, 5kV isolation, Alarm under-voltage cutoff 180Vac

Location Category


Enclosure rating


Design Standards:

IEC61643-1, IEC610006-1,2,3,4 ANSI/IEEE C62.41 Cat B,C,D,E AS1768-1991 Cat B,C,D,E AS3000,AS3100, CE mark

Dimensions & Weight

270mm (H) x 145mm (W) x 47 (D), 1.5kg


C, 10 to 90%RH (non-condensing)°-10 to 65


price  $308.00 inc gst ,  plus delivery

Does not include installation


WARNING: It is illegal for persons other than licensed electrical mechanics, or persons authorised by legislation, to work on fixed wiring of any electrical installation.