Product designation			Surge Protection Device (SPD)
Product type designation			SA3
Operating voltage type			AC
Application			AC Power lines
Number of poles			1P+N
Relay output			Yes
SPD according to IEC/EN 61643-11			YES
Electrical features
IEC Maximum continuous voltage Uc		V	275
IEC Combined surge Uoc/Isc 1,2/50- 8/20 (kV/kA)		kV/kA	6 / 3
IEC Voltage protection level Up (L-N/N-PE)		kV	<1.5 / <1.7
Tripping time ta (L-N/N-PE)		ns	<100
Backup protection fuse (IEC) with supply MCB >16A		Class/A	MCB 16A/B
IEC Maximum short circuit current at 50Hz		kA	1
Status indicator - operating / end of life			Buzzer
Ambient conditions
Operating temperature
	min	°C	-40
	max	°C	+85
Max altitude		m	2000
Mechanical features
Fixing			Parallel on socket
Weight		g	50
ETIM classification
ETIM 8.0			EC000941 - Surge protection device for power supply systems

EAC

IEC/EN 61643-11

SA31NA275MS

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Surge protection device type 3, compact version, combination wave Uoc/Icw (1.2/50 μs, 8/20μs) 6kV/3kA, 1P+N, with sound signaling

Order code	SA31NA275MS
Weight [g]	20
Qty. per package	1
Multiple qty. of packs per order	1
Package dimensions [mm]	305X115X085
Volume [cm³]	99.379
Bar code [EAN13]	8013975231043
HS Code	85365080

Data Sheet

Dimensions

Wiring diagram

Configurators

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