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AD26B Signal Lamp / 22.5mm Indicator Light

The AD26B series signal lamps (indicator light) are designed to provide clear visual signaling in various electrical circuits and control panels. These indicators are suitable for AC (50/60Hz) systems with rated voltages up to 380V and DC systems. They serve multiple purposes, including acting as command signals, pre-warning signals, accident alerts, and other status indicators in industrial control systems and power distribution equipment. Utilizing energy-efficient LED technology, the AD26B series offers long operational life, low power consumption, and reliable performance.

✅ Energy-Efficient LED Lighting
✅ High Luminosity
✅ Durable and Reliable
✅ Robust Protection
✅ Versatile Applications
✅ Multiple Mounting Options

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Product Description

AD26B Signal Lamp Indicator Light High-Brightness LED with Long Life

High-Brightness LED with Long Life

Utilizes high-efficiency LED light sources, offering low power consumption and extended lifespan, ensuring clear visual status indication even in bright industrial environments.

Standard 22.5mm Panel Mounting

Designed for quick and secure installation in standard Φ22.5mm panel cutouts, with support for 1–6mm panel thickness and optional keyed slot positioning for anti-rotation.

AD26B Signal Lamp Indicator Light Standard 22.5mm Panel Mounting
AD26B Signal Lamp Indicator Light Modular,Snap-In Structure for Easy Wiring

Modular, Snap-In Structure for Easy Wiring

Available in snap-in (P type) housings that enable fast assembly and maintenance without tools—ideal for OEMs and panel integrators.

Five Color Options for Flexible Signal Coding

Supports red, green, yellow, blue, and white lenses to visually distinguish functions such as power-on, alarms, warnings, or status states in multi-device systems.

AD26B Signal Lamp Indicator Light Five Color Options for Flexible Signal Coding
AD26B Signal Lamp Indicator Light Wide Voltage Compatibility & Stable Performance

Wide Voltage Compatibility & Stable Performance

Covers a range of AC and DC voltages (48V–380V) using internal resistor or capacitor step-down technology, with stable operation in 0.85–1.1 × Ue voltage conditions.

Standards-Compliant & Industry-Proven

Built to GB/T 14048.5 standards with robust PC flame-retardant construction, pollution degree 3 rating, and suitable for use in distribution boxes, machine panels, and control stations.

AD26B Signal Lamp Indicator Light Standards-Compliant & Industry-Proven

Applications

The AD26B Series Signal Indicator Light is widely used in electrical control panels, switchboards, and industrial automation systems to provide clear and intuitive visual status indication. It is ideal for applications where operators need immediate identification of equipment conditions such as power ON/OFF, fault alarms, operating states, and circuit status. Commonly found in machine tools, motor control centers, HVAC systems, elevator control panels, building automation, and energy management cabinets, the AD26B is suitable for both AC and DC control systems.

Product Specs

Parameter Value
Rated Operating Voltage (Ue) (V) 6, 12, 24, 36, 48, 110, 220, 380
Power Supply Types AC, DC
Rated Operating Current (Ie) ≤20mA
Insulation Resistance ≥20MΩ
Light Intensity ≥60cd/m
Relative Leakage Start Index (CTI) ≥100
Working Voltage 189V AC (effective value)
Working Life ≥3000h
Light Color 1-White, 3-Red, 4-Green, 5-Yellow, 6-Blue, 7-Purple
Protection Level AD26A,AD26B: IP40, AD26D: IP65

Product Content

🔹 How to Choose the Right AD26B Indicator Light

Rated Voltage & Power

  • AC voltages: 110V, 220V, 380V

  • DC/AC universal voltages: 48V, 110V, 220V

  • Operating voltage range: 0.85–1.1 × rated voltage

  • Power consumption: ≤0.65W (AC) / ≤3.7W (universal type)

  • Rated current: ≤20mA

Color Options

  • Red, Yellow, Green, Blue, White

  • Clear, bright lens ensures effective visual indication under industrial lighting conditions

Mounting & Dimensions

  • Mounting hole: Φ22.5mm

  • Panel thickness: 1–6mm

  • Mounting method: Front panel mounting with optional key slot positioning (12 o’clock)

  • Body types: Standard or short-body S type

  • Snap-in “P” type housing for fast installation

Lighting Technology

  • High-brightness LED light source

  • Internal resistor or capacitor step-down (based on model)

  • Long-life, energy-efficient design

Working Environment

  • Operating temperature: –5°C to +40°C

  • Relative humidity: ≤50% @ +40°C, ≤90% @ +20°C

  • Altitude: ≤2000m

  • Pollution degree: 3

  • Installation category: II

Compliance

  • Meets GB/T 14048.5

  • Suitable for installation at the front of end devices in low-voltage systems


🔹 How to Purchase the AD26B Signal Lamp

Specify Model Format

  • Example: AD26B-P/220V-R

    • P: Snap-in type

    • 220V: Rated working voltage

    • R: Color (R=Red, G=Green, Y=Yellow, B=Blue, W=White)

Choose Voltage & Color

  • Match to your system control voltage and indication function

  • Example:

    • Red = Fault

    • Green = Power On

    • Yellow = Warning

    • Blue = Auxiliary

    • White = Neutral/Reset

Installation Requirements

  • Ensure panel cutout is 22.5mm diameter

  • If key positioning is used, follow 12 o’clock slot orientation

  • Panel thickness range: 1–6mm

Optional Versions

  • Ultra-short body (“S” housing)

  • Square or rectangular lens types (upon request)

  • Illuminated symbols or custom markings available for OEM

FAQs

What is AD26 indicator light used for?
Answer:

AD26 series indicator light is designed for use in AC 50Hz or 60Hz circuits (up to 380V) and DC circuits (up to 220V) to display signal status. They are commonly used for:

Command signals

Warning alerts

Fault indicators

Operation status indications

What colors are available?
Answer:

The lights are available in five colors:

🔴 Red

🟡 Yellow

🔵 Blue

🟢 Green

⚪ White

What is the working voltage range?
Answer:

They support a range of rated working voltages:

AC: 110V, 220V, 380V

AC/DC: 48V, 110V, 220V
Operating voltage range: 0.85 – 1.1 times the rated voltage

What types of voltage reduction are supported?
Answer:

There are two types:

Resistor type

Capacitor type

What are the available lens shapes?
Answer:

AD26 indicator light come in various shapes:

Spherical

Flat-round

Square

Rectangular

What is the mounting hole size?
Answer:

The standard mounting hole diameter is:

D22: Ø22.3mm
With a positioning key slot for accurate alignment (see product drawing for full spec)

What is the panel thickness range for mounting?
Answer:

AD26 indicator light can be installed on panels with thickness from 1mm to 6mm.

What are the environmental and electrical conditions?
Answer:

Ambient temperature: -5°C to +40°C

Altitude: ≤2000m

Humidity: ≤50% at 40°C, up to 90% at 20°C

Pollution degree: 3 (industrial environments)

Installation category: Class II (for front-end of terminal equipment)

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