powerware dsfi

DSFi Series - Dual Stage Surge Filter

The DSFi provides secondary protection against power surges caused by external sources such as lightning strikes and substation switching as well as providing protection from surge events generated on the secondary side of the filter. Its 3-stage protection unit utilises primary and secondary MOV protection in conjunction with a Low-Q LC filter. In addition, the unit also provide filtering of the line harmonics, noise and RF transmitters.
 

DSFi Series - Dual Stage Surge Filter 

Technical Specifications

Model

DSFi

Input voltage

200-250VAC 1phase

Service type

TT, TN, TN C-S or any single-phase system with a grounded neutral.

Energy Absorption rating -per mode (Joules)

L-N = 740 Joules, N-E = 780 Joules, Aggregate rating = 2110 JoulesPrimary Protection L-N =740 J
Primary common mode protection L-E &N-E =780 J
Secondary protection L-N =225J
Secondary common mode protection L-E &N-E =480J
Aggregate rating =2,225J

Current rating – continuous

5 - 32A

Recommended max. over current protection

32A (C curve MCCB)

Short circuit withstand (1 sec)

Suitable for use with a 6kAIC C Curve MCB

Protection modes

Line-Neutral, Line-Earth, Neutral-Earth

In 8/20us (Line-Neutral)

15kA x 20 hits

In 8/20us (Line-Earth)

10kA x 20 hits

In 8/20us (Neutral-Earth)

10kA x 20 hits

Ismax 8/20us (Line-Neutral)

50kA

Ismax 8/20us (Line-Earth)

25kA

Ismax 8/20us (Neutral-Earth)

25kA

Filter attenuation

> 80dB to 10MHz

Internal protection (fusing)

Thermal

Terminations

10mm2 PCB Mounted Terminals

Alarms/indicators

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

Enclosure rating

IP24

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

Dimension

Environment

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