30 × 30 mm Square Proximity Sensor with 15 mm Long Sensing Distance
The Denki Seigyo DSP30 Series Square Inductive Proximity Sensors are designed for reliable non-contact detection of metallic objects in industrial automation applications. Featuring a compact 30 × 30 mm square housing, 15 mm sensing distance, PNP and NPN output options, and IP67 environmental protection, the DSP30 Series delivers stable performance for conveyors, packaging machines, machine tools, material handling systems, and factory automation.
Designed for long service life and maintenance-free operation, the DSP30 Series offers high switching reliability, excellent resistance to vibration, and quick installation in demanding industrial environments. The specifications and structure are inspired by industry-standard square proximity sensor designs while adopting Denki Seigyo’s model nomenclature and branding.
Key Features
- 30 × 30 mm square housing
- 15 mm long sensing distance
- Inductive non-contact sensing
- DC 3-wire operation
- PNP and NPN output options
- Normally Open (NO) output
- Fast response frequency up to 200 Hz
- Reverse polarity protection
- Short-circuit protection
- Built-in LED operation indicator
- Heat-resistant ABS housing
- High vibration resistance
- Easy panel mounting
- IP67 protection
- Long service life
Product Models
| Model | Output | Connection | Sensing Distance |
|---|---|---|---|
| DSP30-15DP | PNP Normally Open | 2 m Cable | 15 mm |
| DSP30-15DN | NPN Normally Open | 2 m Cable | 15 mm |
Model Code Explanation
Example: DSP30-15DP
| Code | Meaning |
|---|---|
| D | Denki Seigyo |
| SP | Square Proximity Sensor |
| 30 | 30 × 30 mm Housing |
| 15 | 15 mm Sensing Distance |
| D | DC Supply |
| P | PNP Output |
| N | NPN Output |
Technical Specifications
General Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | Inductive Proximity Sensor |
| Housing | Square |
| Housing Size | 30 × 30 mm |
| Sensing Principle | Inductive |
| Sensing Distance | 15 mm |
| Standard Target | 45 × 45 × 1 mm (Iron) |
| Installation | Non-Flush |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 10–30 VDC |
| Rated Voltage | 12–24 VDC |
| Current Consumption | ≤10 mA |
| Output Type | PNP / NPN |
| Switching Function | Normally Open |
| Load Current | 200 mA Max |
| Response Frequency | 200 Hz |
| Voltage Drop | ≤2 V |
| Reverse Polarity Protection | Yes |
| Short Circuit Protection | Yes |
Mechanical Specifications
| Parameter | Specification |
|---|---|
| Housing Material | Heat-Resistant ABS |
| Connection Type | 2 m Cable |
| Cable Diameter | Ø4 mm |
| Weight | Approx. 100 g |
Environmental Specifications
| Parameter | Specification |
|---|---|
| Protection Rating | IP67 |
| Operating Temperature | –25°C to +70°C |
| Storage Temperature | –30°C to +80°C |
| Humidity | 35–95% RH (Non-Condensing) |
| Hysteresis | Max. 10% of Sensing Distance |
Wiring Diagram
DSP30-15DP (PNP)
- Brown: +V
- Blue: 0 V
- Black: Output
DSP30-15DN (NPN)
- Brown: +V
- Blue: 0 V
- Black: Output
Applications
The DSP30 Series is suitable for:
- Conveyor Systems
- Packaging Machinery
- Industrial Automation
- Machine Tools
- Material Handling Equipment
- Automotive Production
- Steel Processing Plants
- Robotics
- Position Detection
- Object Counting
- Factory Automation
- Assembly Lines
Advantages
- Longer sensing distance than conventional M30 cylindrical sensors
- Compact square body for easy installation
- Stable switching performance
- Maintenance-free operation
- Excellent resistance to dust, vibration, and moisture
- High reliability for continuous industrial use
- Compatible with PLCs, controllers, and automation systems
Why Choose Denki Seigyo DSP30 Series?
- Reliable 15 mm long-range sensing
- Industrial-grade construction
- PNP and NPN output options
- Fast 200 Hz response
- IP67 environmental protection
- Easy installation and wiring
- Long operational life
- Ideal for demanding automation applications
Frequently Asked Questions
What is the sensing distance of the DSP30 Series?
The DSP30-15DP and DSP30-15DN provide a 15 mm sensing distance for reliable detection of metallic objects.
What is the difference between DSP30-15DP and DSP30-15DN?
- DSP30-15DP: PNP Normally Open output
- DSP30-15DN: NPN Normally Open output
What supply voltage does the DSP30 Series require?
The sensors operate on a 10–30 VDC power supply and are compatible with standard industrial PLC and automation systems.
Is the DSP30 Series suitable for harsh industrial environments?
Yes. The heat-resistant ABS housing and IP67 protection rating provide reliable operation in dusty, humid, and demanding industrial conditions.
What applications are ideal for the DSP30 Series?
The DSP30 Series is commonly used in conveyors, packaging machines, CNC equipment, robotics, material handling systems, automotive production lines, and industrial automation.
