SKU: SENS-2748
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StanBon STD20-30NC Light Curtain Sensor - 30 Beams, 20mm Pitch, 580mm Height, NPN/PNP Output

₹14,589.00 (Inclusive of all taxes)
Out of Stock

The StanBon STD20-30NC is a 30-beam safety light curtain sensor with a 20mm pitch and 580mm detection height, designed for industrial machine guarding and perimeter protection. It operates on 12-24V DC and features configurable NPN/PNP outputs for direct integration with PLCs, safety relays, and automation control systems.

Features

  • 30 optical beams provide a 580mm high, 20mm pitch detection zone for precise object and limb sensing.
  • Configurable NPN/PNP open-collector output (≤100mA) for flexible interface with industrial PLCs and safety circuits.
  • Robust IP54-rated housing ensures reliable operation in dusty or humid industrial environments.
  • Fast 4-18ms response time and 0.2-2.5m detection range enable real-time safety shutdowns.
  • Features strong anti-electromagnetic interference (≥2000V pulse immunity) and 10g impact resistance.

Out of stock

Description

The StanBon STD20-30NC Light Curtain Sensor is a photoelectric safety device designed to create an invisible protective screen around hazardous machinery. Utilizing 30 synchronized infrared beams (940 nm) with a 20mm pitch, it detects any object intrusion within its 580mm tall, 0.2-2.5m deep detection zone, triggering an immediate output signal to halt machine operation. This photosynchronization principle ensures high reliability and minimizes false triggers.

Engineered for demanding industrial automation, the sensor features a durable housing with an IP54 protection rating, making it resistant to dust and water splashes. Its wide operating voltage of 12-24V DC and dual NPN/PNP output modes provide versatile integration into existing control panels, safety relays, and programmable logic controllers (PLCs). The unit is built to withstand significant electromagnetic noise and mechanical shock, ensuring consistent performance in workshops, assembly lines, and robotic cell applications.

Key Features

  • High-Density Detection Field: 30 optical axes spaced 20mm apart deliver precise intrusion detection for enhanced personnel safety.
  • Industrial-Grade Durability: IP54 enclosure and 10g/20ms impact resistance ensure reliable operation in harsh factory environments.
  • Robust Signal Integrity: Advanced circuitry provides immunity to electromagnetic interference from group pulses above 2000V.
  • Fast System Response: Response time as low as 4ms enables immediate machine stop commands for critical safety applications.
  • Flexible Power & Output: Wide 12-24V DC input range and selectable NPN/PNP output modes simplify integration with diverse industrial control systems.
  • Stable Long-Range Operation: Consistent detection performance across the specified 0.2 to 2.5-meter operating distance.

Applications

  • Machine guarding on press brakes, stamping presses, robotic arms, and automated assembly lines to prevent operator injury.
  • Perimeter access control and safety zone monitoring around CNC machining centers, injection molding machines, and industrial ovens.
  • Material handling system safety, detecting personnel in loading/unloading zones of palletizers, conveyors, and automated guided vehicles (AGVs).
  • Integration into safety interlock systems for industrial doors, gates, and hazardous process equipment requiring presence detection.

Technical Specifications

ModelSTD20-30NC
Detection Height580 mm
Optical Axis Spacing (Pitch)20 mm
Number of Optical Axes (Beams)30
Detection Distance0.2 – 2.5 m
Response Time4 – 18 ms
Light Source Wavelength940 nm (Infrared)
SynchronizationPhotosynchronization
Supply VoltageDC 12 – 24V
Output ModeNPN / PNP (Selectable)
Max. Output Current≤ 100 mA
Maximum Power Consumption≤ 15 W
Protection ClassIP54
Operating Temperature-10°C to +55°C
Storage Temperature-20°C to +70°C
Operating Humidity15% – 85% RH (non-condensing)
Impact Resistance10g for 20ms
EMI ImmunityGroup pulses ≥ 2000V
Section Size (Beam Unit)27 x 29 mm

Frequently Asked Questions

What is the output signal type of the StanBon STD20-30NC light curtain?

The sensor provides a configurable open-collector output, supporting both NPN (sinking) and PNP (sourcing) modes with a maximum current of 100mA. This allows direct connection to PLC input modules, safety relays, or control system interfaces without requiring additional signal converters.

What is the effective detection height and resolution of this light curtain?

The effective detection height is 580mm, achieved by 30 individual infrared beams. The optical resolution (beam pitch) is 20mm, meaning any object thicker than 20mm breaking the light plane will be detected, making it suitable for finger and hand protection applications.

What power supply is required, and how is the sensor wired?

The unit operates on a wide-range 12-24V DC power supply. Wiring typically involves connecting the positive and negative supply lines, and then connecting the output signal wire (configured for either NPN or PNP logic) to your control system's safety input. Always refer to the included manual for the specific terminal designations and connection diagram.

Is this sensor suitable for outdoor use or wet environments?

With an IP54 rating, the sensor is protected against dust ingress and water splashes from any direction. It is designed for indoor industrial environments. It is not waterproof or submersible and should not be exposed to direct, high-pressure water jets or prolonged rainfall.

How do I align the transmitter and receiver units during installation?

Proper alignment is critical. The transmitter and receiver units must be mounted parallel to each other within the specified 0.2-2.5m range. Most units have alignment indicators or LEDs that signal successful beam synchronization. Ensure the path is free of obstructions and that vibration or movement will not misalign the units during operation.

Package Includes

  • 1 x StanBon STD20-30NC Light Curtain Sensor (Transmitter/Receiver Pair)
  • 1 x Accessory Set (Mounting brackets, fasteners, etc.)

Additional Information

Weight 1.47 kg
Dimensions 8 × 70 × 8 cm