Patlite LR7 Series Components & Modules 70mm Base Units, LEDs & Buzzers
Patlite
$149.00
Ø70mm 24V DC Twist & Lock Field-Replaceable UL Recognized CE & RoHS
Patlite LR7 Components & Modules — 70mm Base Units, LEDs & Buzzers
Individual components for the Patlite LR7 70mm modular signal tower series — base units, LED light tiers, and buzzer modules sold as separate part numbers. Use this page when you need to replace a failed component on an existing LR7 tower, add a color tier or buzzer to customize a tower already in service, or configure a custom LR7 assembly that isn't available as a pre-assembled SKU.
If you need a ready-to-install LR7 tower with LED tiers and buzzer already integrated, shop LR7 Signal Tower Assemblies instead.
How LR7 Components Fit Together
An LR7 signal tower is built from three component types, stacked in order from bottom to top:
- Base unit — the bottom housing that provides the mounting interface (direct mount, knock-out mount) and wiring termination (3m cable or screwless terminal block). Contains no LEDs or buzzer.
- LED light units — one module per color, stacked in the order the customer wants (Red/Amber/Green is most common). Available in Red, Amber, Green, Blue, and White.
- Buzzer module (optional) — 90dB omni-directional audible unit installed at the top of the stack. Body color matches the base unit.
All three component types use Patlite's "Twist and Lock" modular connection — a quarter-turn engagement that seats and locks each module to the one below it. No tools, no rewiring, no gaskets to set. When replacing a component, modules must be removed sequentially from the top down to protect the internal pin connections.
Who Buys LR7 Components?
- Maintenance and MRO — replacing a failed LED tier, base unit, or buzzer on an in-service LR7 tower without having to replace the entire assembly
- Process changes — adding a Blue or White tier to an existing RYG tower to signal a new machine state (maintenance required, call supervisor, shortage alert, etc.)
- Panel builders and machine integrators — configuring LR7 assemblies in combinations Patlite doesn't sell pre-assembled (e.g., specific color stack order, black or silver body, terminal-block wiring instead of pre-wired cable)
- Distributors and service providers — keeping LED modules on the shelf for fast field-service response
Not sure what you need? If you're building a new tower from scratch and don't have a specific custom requirement, a pre-assembled LR7 Signal Tower Assembly is faster and typically more economical than buying components separately.
LR7 Component Part Numbers
LR7 Base Units (Body Only — No LED or Buzzer)
| Part Number | Body Color | Mounting & Wiring |
|---|---|---|
| LR7-02WJNW | Off-white | Direct mount with 3m cable, IP65 |
| LR7-02WTNW | Off-white | Direct mount with screwless terminal block, IP65 |
| LR7-02WTNK | Black | Direct mount with screwless terminal block, IP65 |
| LR7-02WTNU | Silver | Direct mount with screwless terminal block, IP65 |
| LR7-02KTNW | Off-white | Knock-out mount with screwless terminal, IP65 |
| LR7-02KTNK | Black | Knock-out mount with screwless terminal, IP65 |
| LR7-02KTNU | Silver | Knock-out mount with screwless terminal, IP65 |
Note: WJ = Direct Mount with Cable • WT = Direct Mount with Terminal • KT = Knock-out Mount with Terminal (converts between pole-mount and direct-mount)
LR7 LED Light Units (Single Tier, Field-Replaceable)
| Part Number | LED Color |
|---|---|
| LR7-E-R | Red LED light unit |
| LR7-E-Y | Amber LED light unit |
| LR7-E-G | Green LED light unit |
| LR7-E-B | Blue LED light unit |
| LR7-E-C | White LED light unit |
LED color selection: Use standard industry conventions — Green for "running/ready," Amber for "caution/warning," Red for "fault/stop." Blue is commonly used for "maintenance required" or "call for service," and White for "end of cycle" or "operator attention."
LR7 Buzzer Modules (Top-of-Stack, 90dB)
| Part Number | Body Color | Specifications |
|---|---|---|
| LR7-BW | Off-white | Buzzer module, 90dB at 1m, 24V DC |
| LR7-BK | Black | Buzzer module, 90dB at 1m, 24V DC |
| LR7-BU | Silver | Buzzer module, 90dB at 1m, 24V DC |
Buzzer color: Select the buzzer module body color to match your base unit color for a visually consistent stack.
Component Selection Guide
Replacing a single failed LED tier
Identify the color of the failed tier and order the matching LR7-E-[color] module. Remove tiers sequentially from the top until you reach the failed module, swap it, then reassemble top-down. No wiring required.
Adding a buzzer to an existing silent tower
Order the LR7-BW / LR7-BK / LR7-BU buzzer module matched to your tower body color. The buzzer installs at the top of the existing stack. The common signal line in the base unit supports the buzzer — no additional wiring needed at the base.
Building a custom tower from scratch
Start with a base unit (WJ for direct mount with cable, WT for direct mount with terminal, KT if you need knock-out flexibility for a pole mount), then add LED tiers in the order you want them stacked (top to bottom), and finally add a buzzer if needed. Example 3-tier RYG tower with buzzer on an off-white terminal-block base: LR7-02WTNW + LR7-E-R + LR7-E-Y + LR7-E-G + LR7-BW.
Key Specifications
| Diameter | Ø70mm (all LR7 components) |
| Rated Voltage | 24V DC |
| Connection | "Twist and Lock" modular — quarter-turn, no wiring between modules |
| Buzzer Output | 90dB omni-directional at 1 meter |
| Body Color Options | Off-white (W), Black (K), Silver (U) |
| LED Color Options | Red, Amber, Green, Blue, White |
| Protection | IP65 (fully assembled tower) |
| Certifications | UL Recognized (File No. E215660), CE, RoHS |
Frequently Asked Questions
Can I mix LR7 components with LR4, LR5, or LR6 components?
No. Each LR series has its own diameter and its own "Twist and Lock" connection geometry. LR7 components (70mm) only connect to other LR7 components. Base units, LED tiers, and buzzers from the LR4 (40mm), LR5 (50mm), and LR6 (60mm) series are not cross-compatible.
What's the difference between WJ, WT, and KT base units?
WJ is direct mount with a 3-meter pre-wired cable — the most common configuration. WT is direct mount with a removable screwless terminal block, preferred when you want to terminate your own wiring run through conduit. KT has built-in knock-out holes that let you convert between direct mount and pole mount in the field. WT and KT both use screwless terminal blocks.
How do I remove a failed LED tier in the middle of a stack?
Remove tiers one at a time from the top down, rotating counter-clockwise a quarter turn to unlock, then pulling straight up. Continue until you reach the failed tier, replace it, then reassemble top-down (seat and rotate clockwise a quarter turn to lock each module). Do not try to pry a middle tier off without removing the ones above it — this damages the internal pin contacts.
Can I use an LR7 LED module with an LR7 LAN-enabled base?
At present, Patlite's LAN-enabled base units are available for the LR5 series (LR5-LAN Ethernet/IP and Modbus/TCP). If Patlite releases an LR7-LAN in the future, standard LR7 LED modules are expected to be compatible based on the consistent modular architecture, but verify against the product datasheet before ordering.
Are LR7 components rated IP65 individually?
IP65 applies to the fully assembled LR7 tower with all modules seated and locked. Individual components are not rated for exposure before assembly. Once assembled, the tower is dust-tight and water-jet resistant per IP65.
Resources
- → Shop LR7 Signal Tower Assemblies (pre-configured towers)
- → Patlite LR7 Series official product page
- → LR-Series LED Unit Specifications (PDF)
- → All Patlite Products at Automation Distribution
Part numbers and specifications reflect the April 2026 Patlite distributor price list and are subject to change without notice. Contact Automation Distribution for current availability and lead time on specialty colors and terminal-block base units.
