Product Overview
The DSWL-50BFT-RYG combines three status colors into a compact single-layer warning light.
The three colors can be used to represent different machine conditions, for example:
- Red – Fault / Stop / Emergency
- Yellow – Warning / Attention
- Green – Running / Normal
The integrated buzzer option provides an additional audible indication when visual signalling alone is insufficient.
The compact 50 mm construction makes the DSWL suitable for machine panels, automation equipment, production lines and areas where installation space is limited.
Key Features
- 50 mm compact LED warning light
- Three colors in one layer – Red, Yellow and Green
- High-brightness 2835 LED technology
- Steady or flashing operation
- Optional integrated buzzer
- Buzzer volume up to approximately 85 dB
- 12 VDC/AC, 24 VDC and 220 VAC versions
- PNP / NPN and contact-type control options
- High-transmission PC light cover
- Durable ABS housing
- Easy screw mounting
- Maintenance-free LED operation
- Long LED service life
- Suitable for industrial machinery and automation equipment
This design uses 2835 LED chips, a PC cover with ABS base, optional buzzer and easy installation, with applications including factories, machinery and warehouses.
Product Spotlight
DSWL-50BFT-RYG
Denki Seigyo 50 mm Tri-Color LED Warning Light, 24 VDC, Flashing with Buzzer, PNP/NPN Input, Red/Yellow/Green
Model Code Explanation
Example: DSWL-50BFT-RYG
| Code | Description |
|---|---|
| DSWL | Denki Seigyo Warning Light |
| 50 | 50 mm Light Diameter |
| B | 24 VDC Supply |
| F | Flashing with Buzzer |
| T | PNP / NPN Input |
| RYG | Red / Yellow / Green |
Complete Model Meaning
DSWL-50BFT-RYG = Denki Seigyo 50 mm Tri-Color LED Warning Light, 24 VDC, Flashing with Buzzer, PNP/NPN Input, Red/Yellow/Green.
Model Selection
| Code | Description |
|---|---|
| A | 12 VDC / 12 VAC |
| B | 24 VDC |
| C | 220 VAC |
| S | Steady |
| F | Flashing with Buzzer |
| T | PNP / NPN |
| C | Contact Type |
| R | Red |
| Y | Yellow |
| G | Green |
Available Configurations
| Model Example | Supply Voltage | Function | Control Type | Color |
|---|---|---|---|---|
| DSWL-50AST-RYG | 12 VDC / 12 VAC | Steady | PNP / NPN | Red / Yellow / Green |
| DSWL-50BFT-RYG | 24 VDC | Flashing + Buzzer | PNP / NPN | Red / Yellow / Green |
| DSWL-50BST-RYG | 24 VDC | Steady | PNP / NPN | Red / Yellow / Green |
| DSWL-50CFC-RYG | 220 VAC | Flashing + Buzzer | Contact | Red / Yellow / Green |
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Tri-Color LED Warning Light |
| Model | DSWL-50BFT-RYG |
| Diameter | 50 mm |
| Supply Voltage | 24 VDC |
| Available Voltage Options | 12 VDC/AC, 24 VDC, 220 VAC |
| Light Colors | Red / Yellow / Green |
| Light Source | LED |
| LED Type | 2835 |
| Operating Mode | Flashing with Buzzer |
| Control Type | PNP / NPN |
| Buzzer | Integrated |
| Buzzer Volume | Up to approx. 85 dB* |
| Mounting | Screw Mount |
| Cover Material | Polycarbonate (PC) |
| Housing Material | ABS |
| LED Lifetime | Approx. 50,000 hours* |
Visual Indication
The three LED colors can be assigned to different machine operating conditions.
| Color | Typical Status |
|---|---|
| Red | Fault / Stop / Alarm |
| Yellow | Warning / Attention |
| Green | Running / Normal |
This allows operators to understand machine conditions quickly from a distance.
Operating Functions
Steady Indication
The selected color remains continuously illuminated for normal status indication.
Flashing Indication
The selected warning indication flashes to attract operator attention.
Flashing with Buzzer
The visual flashing indication is combined with an audible alarm for machine faults or critical warning conditions.
Electrical Configuration
24 VDC PNP / NPN Version
DSWL-50BFT-RYG
- Supply: 24 VDC
- Control: PNP / NPN
- Colors: Red / Yellow / Green
- Function: Flashing with buzzer
Contact-Type Version
Contact-type versions can be used with switching contacts according to the selected model configuration.
AC Versions
The series can also be configured for 12 VAC or 220 VAC applications according to the selected model.
Mechanical Construction
The DSWL Series uses a simple and robust construction designed for industrial machine installation.
| Component | Material |
|---|---|
| Light Cover | Polycarbonate (PC) |
| Housing / Base | ABS |
| Light Source | 2835 LED |
| Mounting | Screw Mount |
This product uses a PC cover and ABS base construction designed for high light transmission and simple installation.
Installation
The compact 50 mm design allows the warning light to be installed directly on industrial equipment.
Typical mounting locations include:
- Machine panels
- CNC machines
- Automation equipment
- Production machines
- Operator stations
- Conveyor systems
- Control panels
- Warehouse equipment
This design specifies screw-based installation.
Applications
The Denki Seigyo DSWL Series is suitable for:
- CNC machine tools
- Industrial automation equipment
- Automatic production machines
- Assembly lines
- Packaging machinery
- Conveyor systems
- SMT equipment
- Material handling equipment
- Factory workshops
- Warehouse equipment
- Alarm and warning systems
- Machine operator stations
This product specifically lists factory workshops, machinery, warehouses and industrial equipment as application environments.
Typical Machine Status Indication
| Machine Condition | Recommended Light |
|---|---|
| Machine Running | Green |
| Standby / Warning | Yellow |
| Machine Fault / Stop | Red |
| Critical Fault | Flashing + Buzzer |
Advantages
Compact 50 mm Design
Provides clear machine indication while requiring minimal installation space.
Three Colors in One Light
Red, Yellow and Green indications can be used for different machine states.
High-Visibility LED
2835 LED technology provides bright and clear status indication.
Audible Warning
The optional buzzer provides additional operator notification when required.
Easy Installation
Simple screw mounting allows quick installation on machinery and control equipment.
Long-Life LED
LED technology provides maintenance-free operation and long service life.
Why Choose Denki Seigyo DSWL Series?
- Compact industrial warning light
- 50 mm diameter
- Red / Yellow / Green indication
- High-brightness 2835 LED
- Steady and flashing options
- Buzzer option
- PNP / NPN control
- Contact-type option
- Multiple supply-voltage options
- PC + ABS construction
- Easy screw installation
- Suitable for industrial automation
Ordering Information
Model
DSWL-50BFT-RYG
Description
50 mm Tri-Color LED Warning Light, 24 VDC, Flashing with Buzzer, PNP/NPN Input, Red/Yellow/Green.
Frequently Asked Questions
What is the DSWL-50BFT-RYG?
The DSWL-50BFT-RYG is a 50 mm tri-color LED warning light designed for machine status, warning and fault indication.
What do RYG mean?
R = Red
Y = Yellow
G = Green
What does B mean in the model number?
B represents the 24 VDC supply version.
What does F mean?
F represents the flashing with buzzer function.
What does T mean?
T represents the PNP / NPN control type.
Can the light operate continuously?
Yes. The series can be configured with a steady operating function.
Does the DSWL Series have a buzzer?
Yes. A buzzer configuration is available for audible machine warnings.
Where can the DSWL Series be used?
It can be used on CNC machines, automation equipment, production lines, conveyors, packaging machines, SMT equipment, factory machinery and warehouse equipment.
Product Summary
The Denki Seigyo DSWL-50BFT-RYG is a compact 50 mm tri-color LED warning light designed for reliable machine-status indication in industrial environments. With Red, Yellow and Green LED indication, 24 VDC operation, flashing with buzzer, PNP/NPN control, PC cover and ABS housing, it provides a practical visual and audible signalling solution for CNC machines, automation equipment, production lines and industrial machinery.
DENKI SEIGYO
Industrial Automation Components







