Surge Protective Devices Surge Arrester SVU-B

Protect electric system and on-loading electrical apparatus from thunder and instantaneous over-voltage; Standard: IEC/EN 61643-1

Application

Expensive electronic equipment is being increasingly used in all kinds of business, industry, government and enterprise anddomestic households. Electronic discharge, over voltage cause by switching or by lightning often cause these highly sensitiveunits to fail.
Electronic equipment is especially prone up to 1.5km way from lightning strikes due to the electromagnetic fields and cable-bome over voltages. However, effective protection is now available.
Over voltage protective devices for TN-S,TN-C,TN-C-S,TT and IT power systems and plants are subdivided into Classes A,B,Cand D depending on their application area, accordingly to DIN VDE 0675-6 (11.89). Compex offers over voltage protective devicesfor Classes B to D, witch cover the complete installation on the low volage side.

Feature

Metal-oxide varistor Arresters still work after frequent operation
An arrester module can be changed with the mains voltage on 1-4 pole Pre-wired arrester blocks Simple installation via the marked terminals
Thermal isolating device with optical indication, permanent check of arrester serviceability
An extremely short response time, a low protection level and a high current diversion capacity combined with long life.
No follow-up current can be registered after the surge has decayed.
If the surge arrester is damaged by overloading, the integral isolating device breaks the connectionto the mains. This is signalled by a red fault indicator.

Mounting

The surge arrestor can easily be installed in any distribution box or switchgear cabinet by snap-fitting to any commercial 35 mmtophat rail. The multi-pole arresters are connected together by an earthing bridge at the factory, so that there is only one earth (PE)connection to make on site.

Specifications

Type SVU-B-30 SVU-B -40
Class B B
Rated voltage Un(V) 220/380 220/380
Maximum continuous operating voltage Us (V) 385 385
Protection level Up(KV) ≤2.0 ≤2.0
Nominal discharge current (8/20uS) In (KA) 30 40
Max discharge current (8/20uS) Imax (KA) 60 80
Response time T (ns) <25 <25
Temperature range -40oC +80oC -40oC~ +80oC
Color (module/base) Orange red/gray Orange red/gray
Material PBT PBT
Back up fuse 63A gl 63A gl
With alarm model BY1-B/4-385-30B BY1-B/4-385-40B
With remote control contact model BY1-B/4-385-30X BY1-B/4-385-40X

SVU-B-30 & SVU-B-60

Type SVU-B-30 SVU-B-60
Test class I I
class B B
Rated voltage Un (V) 220/380 220/380
Max continuous operating voltage Uc (V) 420 420
Insulated resistance Riso ( Ω) ≥1010 ≥1010
Protection level Up (KV) ≤4.0 ≤4.0
Nominal DC spark voltage Un (KA) 2.95KV (+25%/-40% ) 2.95KV (+25%/-40% )
Nominal discharge current (8/20uS) In (KA) 30 60
Charge Q (As) 15 30
Power W/R (KJ/Ω) 225 900
Response time T (ns) <100 <100
Air humidity ≤95% ≤95%
Temperature range -40oC~ +80oC -40oC~ +80oC
Protection grade IP20 IP20
Max back up fuse 205A gl 205A gl

SVU-B-60 & SVU-B-80,SVU-B-100

Model SVU-B-60 SVU-B-80 SVU-B-100
Test to IEC61643-1 IEC61643-1 IEC61643-1
class B B B
Rated voltage Un (V) 220/380 220/380 220/380
Max continuous operating voltage Uc (V) 385 385 385
Shock current limp (10/35uS) (KA) 7.5 12 15
Charge Q (As) 2.5 3.75 5
Protection level Up (KV) ≤2.0 ≤2.5 ≤3.0
Maximum discharge current Imax (8/20uS) (KA) 60 80 100
Nominal discharge current (8/20uS) In (KA) 30 40 60
Response time T (ns) <25 <25 <25
Color (module/base) Orange red/gray Orange red/gray Orange red/gray
Temperature range -40oC~ +80oC -40oC~ +80oC -40oC~ +80oC
Protection grade IP20 IP20 IP20
Max back up fuse 63~100A gl 63~100A gl 63~100A gl

SVU-B-C

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