Stack Lights, Beacons and Components

Choosing Stack Lights, Beacons and Components components

Stack light selection comes down to whether you need a fixed-configuration tower (factory pre-built) or a modular tower assembled from individual elements (more flexible, slightly more expensive). Modular systems let you add an element later; fixed towers are simpler to order and install.

Specs to confirm before ordering:

Configuration: modular (separate base, segments, audible, dome) or pre-built fixed tower
Number and color of elements — typical 3-tier red/amber/green, often with an additional blue or white
Light type: steady, flashing, rotating, or multi-pattern programmable per segment
LED vs. incandescent vs. xenon strobe
Mounting: pole mount, direct mount to enclosure, bracket-mount with riser, magnetic base
Supply voltage: 24 VDC (most common), 100–240 VAC, or multi-voltage
Wiring: discrete (one wire per segment), serial/multi-color (RGB-style on one wire pair), Ethernet/IO-Link addressable
Audible alarm: continuous, pulsing, voice-message, with dB rating
IP rating — IP65 standard, IP67 or higher for washdown

Common gotchas: a Patlite tower built with type-A segments will not accept type-B segments — the modular connector and locking ring are series-specific. Programmable multi-pattern stack lights need their configuration set via DIP switch or software before installation; out-of-the-box behavior may not match the application. Audible alarms in a noisy environment need higher dB rating to be heard; specs typically rate at 1 m, and noise drops with distance. RGB-style stack lights with one wire pair save wiring but require driver electronics, not direct PLC outputs.

Typical applications: machine status indication at operator stations, andon call buttons for operator-summon-supervisor workflows, OEE downtime indication on long production lines, safety zone status (red = hazard, green = safe), and audible alarms for material-low conditions. On legacy installations, exact-OEM replacement preserves the modular compatibility and mounting interface.

For obsolete stack lights and beacons, send the OEM part number for a sourcing quote.

Do you stock obsolete Patlite, Werma, and 855T stack lights?

Yes. Discontinued Patlite SKH/SKHE, retired Werma 644 codes, end-of-life Allen-Bradley 855T legacy variants are sourced through our supplier network.

Can I mix segments from different brands?

No. Modular stack-light systems use brand-specific connectors and lock rings. Mix within a single brand and series; cross-brand mixing does not fit mechanically or electrically.

LED vs. incandescent — what's the difference?

LEDs last 10–20× longer, draw a fraction of the power, and survive vibration better. Incandescent stack-light bulbs are still used in some legacy installations; if your stack light has bulb sockets, LED replacement bulbs in the same socket style are widely available.

Do I need an audible alarm?

Depends on the application. Visual signaling is often enough on quiet lines or where operators are close to the machine. Noisy or distributed environments often need both light and audible.

Can stack lights be controlled by Ethernet or IO-Link?

Yes — current-generation Banner, Patlite, and Werma offer IO-Link, Ethernet/IP, and EtherCAT-controlled stack lights that allow programmable patterns from the PLC and integration with MES systems. Older stack lights use one discrete output per color.

What is the warranty?

12-month functional warranty. LED module lifetime is typically 50,000+ hours; failures within warranty are covered. Damage from over-voltage or mechanical abuse is not covered.

Stack Lights, Beacons and Components

Banner CL50GRYAPQ Indicator Light

Banner CL50GRYNQ Indicator Light

Banner CL50GRYP Indicator Light

Banner CL50GRYPQ Indicator Light

Banner CL50GXXPQP Indicator Light

Banner K30L2RGB7 Programmable Multicolor Indicator

Banner K30LGRYN General Purpose LED Indicator

Banner K30LGRYNQ General Purpose LED Indicator

Banner K30LGRYP General Purpose LED Indicator

Banner K30LGRYPQ General Purpose LED Indicator

Banner K50FLGRYPQ Flat Mount Domed Indicators

Banner K50LGBY6PQ Indicator Light

Banner K50LGRA1YPQP General Purpose LED Indicator

Banner K50LGRAL1YPQ General Purpose Indicators

Banner K50LGRALSYPQ General Purpose Fiber Optic Amplifier

Banner K50LGRY6PQ General Purpose Indicators

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