The TBC HD9(S) Indicator Signal Lamp is a compact, high-performance visual indication device engineered for modern electrical distribution and industrial control applications. Designed to mount directly onto standard 35mm DIN rails, the HD9(S) delivers clear, reliable LED-based status indication within an exceptionally slim 9mm profile, making it an ideal solution for space-constrained panel environments.
Part of the TBC HD9 product line, this indicator lamp is available in three distinct LED colours — Red, Yellow, and Green — enabling intuitive differentiation between power status, operational conditions, alarm states, and fault signals. Both AC and DC voltage variants are offered, covering a broad range of system requirements from 12V to 230V.
Targeting electrical contractors, panel builders, system integrators, and industrial automation engineers, the HD9(S) combines energy-efficient LED technology with a flame retardant thermoplastic housing to deliver maintenance-free, long-service-life performance in demanding commercial and industrial environments.
The TBC HD9(S) Indicator Signal Lamp is constructed around a high-efficiency LED light source housed within a slim, flame retardant thermoplastic enclosure engineered to withstand the rigours of continuous industrial operation. The 9mm width profile is among the most compact available in the DIN rail indicator category, allowing panel designers to install multiple indication points side by side without compromising on board space or readability.
The HD9(S) is offered across three voltage tiers — 12V AC/DC, 24V AC/DC, and 230V AC/DC — providing genuine flexibility for both low-voltage control circuit applications and direct mains-connected indication duties. The IP20 protection rating is appropriate for installation within enclosed distribution boards, switchboards, control cabinets, and telecommunication enclosures where the indicator is shielded from direct contact with foreign objects.
With a wiring capacity of up to 6mm², the HD9(S) integrates cleanly into standard panel wiring practices. The maintenance-free LED design, combined with the wide operating temperature range of -25°C to +55°C, ensures consistent long-term performance in both commercial building services and industrial automation environments, reducing total cost of ownership over the product lifecycle.
The HD9(S) employs a solid-state LED light source operating directly from the rated supply voltage, eliminating the need for external current-limiting resistors or ballast components in standard installations. The LED assembly is integrated within the flame retardant thermoplastic body, which is moulded to precise dimensional tolerances to ensure consistent snap-fit engagement on standard 35mm DIN rail profiles. The indicator circuit is designed to operate across both 50Hz and 60Hz AC supply frequencies as well as equivalent DC voltage levels, with rated voltages up to 230V AC and 230V DC depending on the selected model variant.
The thermoplastic housing material provides inherent flame retardancy, contributing to panel fire safety without requiring additional protective measures. The front lens is colour-matched to the LED emitter — Red, Yellow, or Green — ensuring maximum colour fidelity and brightness under normal panel operating conditions. The compact 90mm height, 9mm width, and 68mm depth envelope allows dense multi-indicator arrangements within standard modular DIN rail enclosures.
| Model | HD9(S) |
|---|---|
| Product Type | Indicator Signal Lamp |
| Indicator Type | LED |
| Rated AC Voltage | Up to 230V AC |
| Rated DC Voltage | Up to 230V DC |
| Rated Frequency | 50Hz / 60Hz |
| Indicator Colours | Red / Yellow / Green |
| Available Voltage Models | 12V AC/DC, 24V AC/DC, 230V AC/DC |
| Mounting Type | 35mm DIN Rail |
| Protection Degree | IP20 |
| Wiring Capacity | ≤ 6mm² |
| Housing Material | Flame Retardant Thermoplastic |
| Operating Temperature | -25°C to +55°C |
| Height | 90mm |
| Width | 9mm |
| Depth | 68mm |
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