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Siemens 5SD7444-8KK21

combination arrester type 1+2 requirement class B+C, Uc 300 V, Iimp=12.5 kA 4-pole, 3+1 circuit for TN-S and TT systems, for 40 mm busbar system with remote display

SiemensMFR # 5SD7444-8KK21SKU # YLSAQOHLJK3JFY

standardIEC 61643-11: 2011, EN 61643-11: 2012

product designationSurge protection device

Test Class I, Type 1Yes

Test Class II, Type 2Yes

Test Class III, Type 3Yes

number of SPD ports1

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About This Product

combination arrester type 1+2 requirement class B+C, Uc 300 V, Iimp=12.5 kA 4-pole, 3+1 circuit for TN-S and TT systems, for 40 mm busbar system with remote display

Siemens 5SD7444-8KK21

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Specifications

General data

standardIEC 61643-11: 2011, EN 61643-11: 2012

product designationSurge protection device

Test Class I, Type 1Yes

Test Class II, Type 2Yes

Test Class III, Type 3Yes

number of SPD ports1

design of the productArrester combination

design of pole3+N/PE

designation of the protective pathsL-N, N-PE

fastening methodbusbar mounting 40 mm

material of the enclosureDurethan

degree of pollution2

overvoltage category according to IEC 61010-1II

protection class IP at connection all terminalsIP20

shock acceleration30 gn

vibrational acceleration at 5 Hz ... 500 Hz limited to 2,5 h per axis4.96 gn

relative humidity during operation5 ... 95 %

installation altitude at height above sea level maximum4 000 m

width47 mm

height224 mm

depth74 mm

Electrical data

type of distribution systemTN-S, TT

at AC230 V

value range of the operating frequency50 / 60 Hz

at AC maximum300 V

between L and (PE)N at AC maximum300 V

apparent power consumption maximum1.5 mVA

discharge current at (8/20) µs20 kA

discharge current 1 phase at (8/20) µs maximum50 kA

between L and (PE)N at (8/20) µs20 kA

between N and PE at (8/20) µs100 kA

between N and PE at (8/20) µs80 kA

lightning current peak value at (10/350) µs12.5 kA

lightning current peak value between N and PE50 kA

lightning current peak value between L and N12.5 kA

charge of the flash between L and N6.25 A·s

charge of the flash between N and PE25 A·s

between L and N39 kJ/?

between N and PE625 kJ/?

between N and PE100 A

short-circuit rating (SCCR) at 264 V25 kA

protection level1.5 kV

maximum1.5 kV

between L and N maximum1.5 kV

between N and L1.5 kV

between N and PE maximum1.5 kV

between PE and N and/or L1.5 kV

at rated value of discharge current maximum1.5 kV

at 5 kA maximum1.1 kV

— at rated value of discharge current maximum1.5 kV

— at 5 kA maximum1.1 kV

— at rated value of discharge current maximum1.5 kV

— at 5 kA maximum1.1 kV

response value of the surge voltage at 6 kV at (1.2/50) µs1.5 kV

between L and N1.5 kV

between N and PE1.5 kV

Response time100 ns

response time between L and (PE)N100 ns

response time between N and PE100 ns

fuse protection type at V-shaped connection315 A AC (gG)

fuse protection type for T-connector315 A AC (gG)

Connections/ Terminals

type of electrical connectionplug-in technology for busbar 40 mm

tightening torque4.5 N·m

for finely stranded conductor10 ... 25 mm²

for rigid conductor10 ... 35 mm²

finely stranded10 ... 25 mm²

AWG number as coded connectable conductor cross section12 ... 2

design of the thread of the connection screwM6

signal designOptical, remote signaling contact

Indicator/remote signaling

product component remote signaling contactYes

switching function of the remote signaling contactsNO / NC

operating voltage of the remote signaling contacts at AC125 ... 250 V

operational current of the remote signaling contacts at AC1 mA

connection type of remote signaling contactscrewless /push in

connectable conductor cross-section for remote signaling contacts for rigid conductor0.25 ... 1.5 mm²

connectable conductor cross-section for remote signaling contacts for finely stranded conductor0.25 ... 1.5 mm²

AWG number as coded connectable conductor cross section for remote signaling contacts24 ... 16

stripped length of the cable for remote signaling contacts12 mm

NEMA/UL - Data

type of distribution systemTN-S, TT

for remote signaling contacts according to UL24 ... 16

during operation-40 ... +85 °C

during storage-40 ... +80 °C

combustibility class according to UL 94V0

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Siemens 5SD7444-8KK21

About This Product

Siemens 5SD7444-8KK21

Specifications

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