Panel Indicators, Pilot Lights

Part Number	Description / PDF	Quantity
1092M6-125VAC Visual Communications Company, LLC	PMI RND .5" LED 125V WIRE SMALLD	70
Q19P1BXXY12E APEM Inc.	INDICATOR 12V 19MM PROMINENT YEL	0
PM5-S17G110AC Califia Lighting (Bivar)	PANEL MOUNT ASSEM GREEN, 12.7MM	71
6803235242F Dialight	10MM HG/G PMI-24VDC	175
Q8P1CXXY110E APEM Inc.	INDICATOR 110V 8MM PROMINENT YEL	0
5580102007F Dialight	IND SNAP-IN PANEL MNT 635NM RED	725
HW1P-5Q4-G IDEC	LED PANEL INDICATOR GRN 24V IP65	6
PM53-YGW12.0CC Califia Lighting (Bivar)	INDICATOR LED GREEN/YLW PNL MNT	100
FL1M-6SW-1-G24V Mallory Sonalert Products	LED GRN 6MM NUT 24VAC/DC STK	169
Q14F1BXXHG24E APEM Inc.	14MM FLSH BLK CHRM HYP GRN 24VDC	50
PM5-A17B110AC Califia Lighting (Bivar)	PANEL MOUNT ASSEM 12.7MM BLUE	0
6571504103F Dialight	LED 17.46MM RED DIFF PANEL MOUNT	16
S08F-24B IndustrialeMart	HIGH LED 8MM FLAT 24V BLUE IP67	27
2150A3 Visual Communications Company, LLC	LAMP NEON INCAND AMBER PNL MNT	1730
L65DG12L Visual Communications Company, LLC	LED 5MM GREEN DIFFUSED PANELMT	88
61-0050.02 EAO	INDICATOR 24X24 ST/PT	6
TLL-87B-12V-S Floyd Bell, Inc.	PANEL MOUNT BLUE CONTINUOUS OUTP	995
Q14F1BXXG12E APEM Inc.	INDICATOR 12V 14MM FLUSH GREEN	38
5110F3-12V Visual Communications Company, LLC	LED AMBER 5/21" HOLE PANEL MOUNT	0
FL1P-8NJ-1-R12V Mallory Sonalert Products	LED RED 8MM NUT 12VAC/DC STK	68

Panel Indicators, Pilot Lights

1. Overview

Panel indicators and pilot lights are optoelectronic devices that provide visual status feedback in electrical and electronic systems. These components convert electrical signals into light outputs, enabling operators to monitor equipment conditions at a glance. Their importance spans across industrial automation, consumer electronics, transportation, and medical devices, where reliable visual indication ensures operational safety, efficiency, and user interaction.

2. Major Types and Functional Classification

Type	Functional Features	Application Examples
LED Panel Indicators	Low power consumption, long lifespan, instant response	Industrial control panels, HVAC systems
Lamp-based Pilot Lights	High brightness, compatibility with AC/DC circuits	Machinery status indication, heavy-duty equipment
Combined Indicator/Switch	Integrated illumination with manual control	Emergency stop circuits, control desks
Multi-color Indicators	Programmable color outputs for status differentiation	Network routers, medical diagnostic equipment
Remote Indicators	Separate light source and panel module	Automotive dashboards, aerospace control systems

3. Structure and Components

Typical construction includes:

Light Source: LED chips or filament bulbs with specific color/wavelength
Housing: Thermoplastic or metal body with mounting threads (e.g., M20, NPT)
Optical System: Diffused or focused lens for uniform light distribution
Electrical Interface: Screw terminals, PCB pins, or quick-connect terminals
Sealing Elements: Rubber gaskets for IP65+ protection ratings

4. Key Technical Specifications

Parameter	Significance
Operating Voltage Range	Determines compatibility with control circuits (3-480V AC/DC)
Luminous Intensity (cd)	Affects visibility in different lighting conditions
Color Wavelength (nm)	Standardizes visual coding (e.g., 630nm red for warnings)
MTBF (Hours)	Indicates reliability (LED: 50,000-100,000 hours)
IP Rating	Defines environmental protection level
Response Time (ms)	Critical for real-time status monitoring

5. Application Areas

Industrial: CNC machines, PLC control cabinets, factory automation
Transportation: Locomotive control panels, aircraft avionics
Medical: Patient monitors, imaging equipment status indicators
Consumer: Home appliance power indicators, audio equipment
Energy: Solar inverters, smart grid monitoring systems

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Phoenix Contact	ILLINOX series	Modular design, IP69K rating
Omron	XLDC12E-4AH	Ultra-compact LED indicator with 100,000-hour lifespan
Siemens	8WA1000 series	Multi-voltage capability (24-415V AC/DC)
Eaton	Pilot Lights H45K	Shock-resistant filament lamps for heavy-duty use
TE Connectivity	CapLED	Capacitive touch-enabled indicator

7. Selection Recommendations

Key considerations:

Environmental factors: Temperature range (-40 C to +85 C), vibration levels
Electrical compatibility: Voltage matching and circuit type (AC/DC)
Visibility requirements: Ambient light conditions and viewing distance
Certification needs: UL, CE, RoHS compliance for regulatory environments
Mechanical specifications: Panel cutout size (commonly 16/22/30mm)

Example: Selecting an IP67-rated LED indicator with 24V DC operation for a food processing plant's washdown area.

Industry Trends

Emerging developments include:

Integration with IoT systems for smart status monitoring
Miniaturization for high-density panel designs
RGB-LED technology for dynamic color coding
Energy harvesting indicators for self-powered operation
Enhanced durability coatings for extreme environments