BEHA 指示灯 Pilot lamp 514000SX22

泉州市海科恩机械设备有限公司

用灯光监视电路和电气设备工作或位置状态的器件。指示灯通常用于反映电路的工作状态（有电或无电）、电气设备的工作状态（运行、停运或试验）和位置状态（闭合或断开）等。

使用白炽灯为光源的指示灯由灯头、灯泡、灯罩和连接导线等组成，亦有使用发光二极管作指示灯的，一般装设在高、低压配电装置的屏、盘、台、柜的面板上，某些低压电气设备、仪器的盘面上或其他比较醒目的位置上。反映设备工作状态的指示灯，通常以红灯亮表示处于运行工作状态，绿灯亮表示处于停运状态，乳白色灯亮表示处于试验状态; 反映设备位置状态的指示灯，通常以灯亮表示设备带电，灯灭表示设备失电;反映电路工作状态的指示灯，通常红灯亮表示带电，绿灯亮表示无电。为避免误判断，运行中要经常或定期检查灯泡或发光二极管的完好情况。

指示灯的额定工作电压有220， 110，48，36，24，12，6，3 V等。受控制电路通过电流大小的限制，同时也为了延长灯泡的使用寿命，常采取在灯泡前加一限流电阻或用两只灯泡串联使用， 以降低工作电压。

A device that monitors the working or position status of circuits and electrical equipment using lighting. Indicator lights are usually used to reflect the working status of circuits (with or without power), the working status of electrical equipment (running, stopped, or tested), and the position status (closed or open).

The indicator light using incandescent bulbs as the light source consists of a lamp head, bulb, lampshade, and connecting wires. Some also use light-emitting diodes as indicator lights. It is generally installed on the panels of high and low voltage distribution equipment, such as screens, panels, tables, and cabinets, as well as on the panels of certain low voltage electrical equipment and instruments or other prominent positions. The indicator light that reflects the working status of the equipment is usually indicated by a red light indicating that it is in operation, a green light indicating that it is in shutdown, and a milky white light indicating that it is in testing state; An indicator light that reflects the location status of a device, usually indicating that the device is powered on when the light is on and powered off when the light is off; An indicator light that reflects the working status of a circuit, usually a red light indicates power on, and a green light indicates no power. To avoid misjudgment, it is necessary to regularly or periodically check the condition of the light bulb or LED during operation.

The rated operating voltage of the indicator light is 220, 110, 48, 36, 24, 12, 6, 3 V, etc. Due to the current limitation of the controlled circuit and in order to extend the service life of the light bulb, it is common to add a current limiting resistor in front of the bulb or use two bulbs in series to reduce the operating voltage.