ARB4 Arc Flash Protection Relay

● Power supply: AC/DC220V, AC/DC110V, DC48V ,DC24 ● Voltage range: 0.1 ~ 120V ● Rated current: AC 5A/1A ● Rated frequency: 50Hz or 60Hz ● Digital Input / Digital Output

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General

Acrel ARB4 series arc protection device integrates multiple functions such as protection, measurement, monitoring, control, communication, fault recording, event recording, etc. It can monitor arc signals, protect current or voltage signals in real time, and achieve arc protection function for 0.4kV~35kV medium and low voltage distribution systems.

Technical Parameter

Model / Function			ARB4-A1	ARB4-A2	ARB4-A3
Hardware	Arc sensor signal acquisition		1	2	3
	Current signal aquisition		1 set of 3-phase currents, total of 4 current channels
	Voltage signal acquisition		3 zero sequence voltages, a total of 3 voltage channels
	Digital Input		8
	Digital Output		5 normally open relay outputs
	485 interface		1
Function	Arc protection	Arc criterion	√
		Arc&Current criterion	√
		Arc&Zero-sequence Voltage criterion	√
	Arc monitoring and fault location		√
	Real time self inspection of arc sensors and fiber optic links		√
	failure protection		√
	CT disconnection monitoring		√
	non-electricity protection		√
	Device abnormal alarm		√
	Maintenance status lock		√
	Fault recording		√
Protocol	Modbus		√
	IEC101		√
	IEC103		√
	IRIG-B		√

Electromagnetic compatibility performance

	Test item	Requirement
1	Radiation emission limit test	GB/T 14598.26IEC 60255-26IEC 61000-6-3IEC 61000-6-4
2	Conduction emission limit test	GB/T 14598.26IEC 60255-26IEC 61000-6-3IEC 61000-6-4
3	Radio-frequency electromagnetic field radiation immunity	Meet the requirements of IEC 60255-26,severity is 10V/m.
4	Electrostatic discharge immunity	Meet the requirements of IEC 60255-26,severity is IV level.
5	Disturbance immunity of RF Field Induction conduction	Meet the requirements of IEC 60255-26, severe grade disturbance level is 10V.
6	Immunity of electric fast transient pulse group	Meet the requirements of IEC 60255-26,severity is IV level.
7	Slow-damped oscillation wave immunity	Meet the requirements of IEC 60255-26,the common mode is 2.5 and the difference module is 1.
8	Surge immunity	Meet the requirements of IEC 60255-26,severity is IV level.
9	Effect test of AC and DC voltage sag interruption	GB/T 14598.26IEC 60255-26
10	Power frequency magnetic field immunity	Meet the requirements of IEC 60255-26,severity is V level.