Specification

BY7-80 SPD

Item	Specification
Model	BY7-80-385
Nominal AC Voltage of the System Uo(V)	~230/400
Max. Continuous Operating Voltage Uc(V)	~385/255 (N-PE)
Nominal Discharge Current In(kA)	40
Max. Discharge Current Imax(kA)	80
Voltage Protection Level Up(kV)	2.0
Response Time TA	MOV: 25 ns / GDT: 100 ns
Max. Backup Fuse	200A gL/gG
Wiring	4mm2~35mm2
Protection Grade of the Shell	IP20
Material	PA66
Flameproof Grade	Comply with UL94-V0
Short Circuit Current Rating Isccr	1000A
Status Indicator	Green: Functional / Red: Failed
Output Contact	C-NC: Conduction / C-NO: Open
Combination Method	1 0, 2 0, 3 0, 4 0, 3 1
Applicable Power Supply System	TN, TT
Installation Method	35mm DIN rail
Ambient Temperature	-5°C～ 40°C
Ambient Humidity	5%～95%
Altitude	<2000m

Feature

The BY7-80 series Surge Protection Device (SPD) features a dependable voltage protection level and a robust overload characteristic, coupled with a strong discharge current capacity, making it ideal for lightning protection in AC low voltage distribution systems. Incorporating a high-energy Metal Oxide Varistor (MOV) chip, the BY7-80 series SPD offers a rapid response time and reliable protection functions. This product is in full compliance with the IEC 61643-11:2011 standard.

Diagram

Dimensions

Product Details

Desctription	Symbol	Unit	Parameters & Models
Rated operational voltage	Uc	V	275	320	385	440
Nominal discharge current	In	kA	40	40	40	40
Maximum discharge current	Imax	kA	80	80	80	80
Voltage protection level	Up	Kv	2.0	2.2	2.5	3.0
Protection degree	IP		20	20	20	20
Response time		ns	25	25	25	25
Fuse		A	100	100	100	100
Material			PA6	PA6	PA6	PA6
Fire retardent (comply with)			UL94V-0	UL94V-1	UL94V-2	UL94V-3
Standards			IEC61643-1:1998
Single Phase Model	L/N L,N		BY7-80/1-275 BY7-80/2-275	BY7-80/1-320 BY7-80/2-320	BY7-80/1-385 BY7-80/2-385	BY7-80/1-440 BY7-80/2-440
Single Phase Model	L/N NPE		BY7-80/1 1-275	BY7-80/1 1-320	BY7-80/1 1-385	BY7-80/1 1-440
Three phase Model	L1,L2,L3		BY7-80/3-275	BY7-80/3-320	BY7-80/3-385	BY7-80/3-440
	L1,L2,L3,N		BY7-80/4-275	BY7-80/4-320	BY7-80/4-385	BY7-80/4-440
	L1,L2,L3,N NPE		BY7-80/3 1-275	BY7-80/3 1-320	BY7-80/3 1-385	BY7-80/3 1-440
Local indication: Green indicates normal state and red indicates failure.