Esbee 22.5 mm ETL Range LED Indicators with Test Input are professional-grade panel indicators designed for high-reliability visual signalling in control panels, switchboards and process systems. The ETL range combines long-life LED illumination with an integrated test input function that allows operators to verify lamp operation without energising the circuit. Built to industrial standards, these indicators ensure safety, accuracy and performance in critical control applications.
🔧 Technical Highlights:
- Mounting size: Standard Ø 22.5 mm panel cut-out (EN 60947 compliant)
- Operating voltages: 12 V DC, 24 V DC, 48 V DC, 110 V AC, and 230 V AC variants
- Test input: Dedicated terminal for lamp test circuit verification
- LED colours: Red, green, yellow, blue, and white options
- Lens style: Flat or domed for clear indication under varied lighting conditions
- Luminous intensity: High-brightness LED with wide viewing angle
- Housing material: Flame-retardant thermoplastic with chrome or black bezel
- Ingress protection: IP65 front protection with supplied sealing gasket
- Connection type: Screw or push-fit terminals for quick installation
- Certifications: CE, UKCA and RoHS compliant
✅ Benefits:
- Built-in test input enables quick functional verification without circuit power
- Bright, reliable LED indication with low power consumption
- IP65-rated protection for harsh industrial environments
- Standard 22.5 mm modular design for seamless integration
- Long operational life reduces maintenance and downtime
🚀 Applications:
- Control and automation panels
- Switchboards and distribution systems
- Process and machine status indication
- Power generation and substation control
- Safety-critical applications requiring periodic lamp testing
Esbee ETL range 22.5 mm LED indicators with test input provide reliable illumination and easy in-circuit testing — combining safety, visibility and long-life performance for professional control panel applications, available from Charter Controls with verified UK stock.
FAQs
- Q: What is the test input used for?
A: The test input allows users to verify that the LED indicator is operational without applying power to the main control circuit — improving safety and maintenance efficiency. - Q: Are these indicators compatible with standard 22.5 mm panel fittings?
A: Yes — ETL range indicators fit any standard 22.5 mm panel cut-out and are fully compatible with other Esbee modular components.