品牌：倍加福型号：KFA6-SR2-Ex2.W设备类型：网管交换机传输速率：10Mbps传输模式：全/半双工自适应工作协议：第二层交换机是否支持网管功能：网管型交换机有无内置防火墙：有端口结构：固定端口模块化插槽数：1端口数：657546背板带宽：5437馈电电流：4746馈电电压：48678功率：678W网络标准：678状态指示灯：788456平均无故障时间：6573产品认证：367环境条件：768外形尺寸：367mm重量：3657kg

General specificationsFunctional safety related parametersSupplyInputOutputTransfer characteristicsGalvanic isolationIndicators/settingsDirective conformityConformityAmbient conditionsMechanical specificationsData for application in connection with hazardous areasInternational approvals

Signal type		Digital Input
Safety Integrity Level (SIL)		SIL 2
Connection		terminals 14, 15
Rated voltage		207 ... 253 V AC, 45 ... 65 Hz
Power dissipation		1.2 W
Power consumption		max. 1.3 W
Connection side		field side
Connection		terminals 1+, 2+, 3-; 4+, 5+, 6-
Rated values		acc. to EN 60947-5-6 (NAMUR)
Open circuit voltage/short-circuit current		approx. 8 V DC / approx. 8 mA
Switching point/switching hysteresis		1.2 ... 2.1 mA / approx. 0.2 mA
Line fault detection		breakage I ≤ 0.1 mA , short-circuit I > 6 mA
Pulse/Pause ratio		min. 20 ms / min. 20 ms
Connection side		control side
Connection		output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12
Output I, II		signal ; relay
Contact loading		253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
Energized/De-energized delay		approx. 20 ms / approx. 20 ms
Mechanical life		107 switching cycles
Switching frequency		≤ 10 Hz
Input/Output		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Input/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/Output		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Display elements		LEDs
Labeling		space for labeling at the front
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Low voltage
	Directive 2014/35/EU	EN 61010-1:2010
Electromagnetic compatibility		NE 21:2006
Degree of protection		IEC 60529:2001
Input		EN 60947-5-6:2000
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 150 g
Dimensions		20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
EU-Type Examination Certificate		PTB 00 ATEX 2081
	Marking	II (1)G [Ex ia Ga] IIC   II (1)D [Ex ia Da] IIIC   I (M1) [Ex ia Ma] I
	Input	Ex ia
	Voltage	10.6 V
	Current	19.1 mA
	Power	51 mW (linear characteristic)
Supply
	Maximum safe voltage	253 V AC (Attention! Um is no rated voltage.)
Output
	Contact loading	253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
	Maximum safe voltage	253 V AC (Attention! The rated voltage can be lower.)
Galvanic isolation
	Input/input	not available
	Input/Output	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
	Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN 60079-0:2012+A11:2013 , EN 60079-11:2012
FM approval
	Control drawing	116-0035
UL approval
	Control drawing	116-0145
CSA approval
	Control drawing	116-0047
IECEx approval		IECEx PTB 11.0031
	Approved for	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I