离岸价格
获取最新报价6 ~ 8 / Piece ( Negotiable )
|Minimum Order
位置:
-
最小订单价格:
最小订单:
10 Piece
包装细节:
netural packing
交货时间:
5days for small order, for bigger order, it depend
供应能力:
10000 Piece per Month
付款方式:
-
联系人 Ms. Jenny
Shenzhen, Guangdong
The bell remains the most commonly used alarm for fire evacuation system, for wall applications, indoors.
They are designed to be used in *4 volt DC systems.
Wiring
The
system designer must make sure that the total current drawn by the
devices on the loop does not exceed the
current capability of the panel supply, and that the last device on
the circuit is operated within its rated voltage.
When calculating the voltage available to the last device, it is
necessary to consider the voltage drop due to the
resistance of the wire. The thicker the wire, the smaller the
voltage drops. Wire resistance tables can be obtained from
electrical handbooks.
Specifications
Voltage
ranges: *0vdc to *8vdc (Nonpolarity)
Power and current consumption: 1W, *@********************umber of standard: EN***3
Sound level：*0dB（A）
