Siemens 5SD74640 SENTRON Surge arrester 40kA 240V 3-pole 15A 14kA

Siemens manufactures the 5SD74640 surge arrester, which has a discharge capacity of 40 kA. This device is designed to protect electrical systems by safely diverting surge currents. Typical applications include safeguarding residential and commercial electrical installations from voltage spikes and transient surges.

Type	Surge arrester
Voltage Rating - AC	240V AC
No. of Poles	3
Category type 2	TRUE
Construction size	4 modular spacing
Degree of protection (IP)	IP20
Dim	(L x W x H) 71.5 x 71.5 x 90 mm
Height	90mm
Integrated backup fuse	FALSE
Integrated short-circuit protection	false
Integrated short-circuit protection selective to fuse gG	N/A
IP Rating	IP20
Leakage Current	40kA
Leakage-current free	N/A
Length	71.5mm
Max. conductor cross section flexible (fine-strand)	25mm²
Max. conductor cross section solid (solid, stranded)	35mm²
Max. continuous voltage AC	350V
Max. continuous voltage DC	N/A
Max. discharge surge current (8/20)	40
Max. overcurrent protection device, parallel connection (fuse)	125
Max. overcurrent protection device, series connection (fuse)	80
Max. PV-voltage	N/A
Misc Attribute	Material: PA 6.6/PBT
Mounting method	N/A
Nominal discharge surge current (8/20)	40kA
Nominal voltage AC	230V
Nominal voltage DC	N/A
Number of conductors (without earthing)	3
Operating Temperature	-40 °C - +80°C
Product colour	Multicolour
Short-circuit breaking capacity (Isccr)	25
Signalling at the device	None
System configuration DC	FALSE
System configuration IT	FALSE
System configuration other	FALSE
System configuration TN	FALSE
System configuration TN-C	FALSE
System configuration TN-C-S	FALSE
System configuration TN-S	FALSE
System configuration TT	FALSE
Voltage protection level	N/A
Voltage protection level L-N	1.4kV
Voltage protection level N-PE	1.5kV
Voltage Rating	230V
Weight	419g
Width	71.5mm
With remote signalling contact	FALSE