Schneider SCP401 – Inductive Proximity Sensor | OsiSense XS Series
Engineering Background
The Schneider Electric SCP401 is part of the OsiSense XS family of inductive proximity sensors, engineered for demanding industrial environments where reliable, non-contact object detection is critical. Designed to IEC 60947-5-2 standards, this sensor delivers consistent switching performance across a wide range of metallic target materials and operating conditions.
Product Positioning
The SCP401 is positioned as a workhorse detection component for machine builders, panel integrators, and OEM automation designers who require a compact, DIN-rail or bracket-mountable sensor with predictable electrical characteristics. Its cylindrical M12 form factor and standardized M12 connector interface make it a drop-in replacement in most existing sensor harnesses.
Complete Technical Specifications
| Part Number | SCP401 |
| Brand | Schneider Electric |
| Series | OsiSense XS |
| Sensor Type | Inductive Proximity Sensor |
| Housing Form Factor | Cylindrical, M12 |
| Sensing Distance (Sn) | 4 mm (nominal, steel target) |
| Operating Voltage (Ue) | 10 – 30 V DC |
| Output Type | PNP, Normally Open (NO) |
| Output Current (Ie) | 200 mA max |
| Voltage Drop (Ud) | ≤ 2.5 V |
| Short-Circuit Protection | Yes |
| Reverse Polarity Protection | Yes |
| Switching Frequency | 800 Hz |
| IP Rating | IP67 |
| Operating Temperature | -25 °C to +70 °C |
| Connection | M12 4-pin connector |
| Housing Material | Nickel-plated brass |
| Weight | ~400 g (packaged) |
| Standards | IEC 60947-5-2, CE, RoHS |
Proven Application Environments
- Conveyor & Material Handling: End-of-travel detection, pallet presence sensing, and part counting on high-speed lines.
- Machine Tool & CNC: Spindle home position, tool changer confirmation, and door interlock feedback.
- Packaging Machinery: Film registration, cap presence, and reject gate confirmation.
- Automotive Assembly: Fixture clamping verification and part-in-place detection on transfer lines.
- Robotics & Gantry Systems: Axis limit sensing and gripper open/close confirmation.
- Food & Beverage (Dry Zones): IP67 rating supports washdown-adjacent installations where moisture ingress is a risk.
Engineering Advantages
- Non-Contact Operation: Zero mechanical wear — no moving parts means MTBF measured in hundreds of millions of cycles.
- Wide Supply Voltage Window (10–30 V DC): Compatible with both 12 V and 24 V DC control architectures without additional regulation.
- PNP Sourcing Output: Direct interface to PLC sink-type digital input cards (Siemens S7, Allen-Bradley, Mitsubishi, Omron, Schneider Modicon).
- IP67 Sealed Housing: Withstands temporary immersion, coolant splash, and high-pressure air cleaning.
- Short-Circuit & Reverse Polarity Protection: Eliminates field wiring errors as a damage vector — critical for maintenance environments.
- M12 Quick-Disconnect: Tool-free sensor swap without rewiring; reduces MTTR to under 2 minutes.
- Nickel-Plated Brass Body: Corrosion-resistant and EMI-shielded for electrically noisy panel environments.
System Architecture & Signal Flow
The SCP401 operates on a standard 3-wire PNP sourcing topology:
- Pin 1 (Brown): +V DC supply (10–30 V)
- Pin 3 (Blue): 0 V / GND
- Pin 4 (Black): Signal output → PLC DI terminal
When a metallic target enters the sensing field, the oscillator damping triggers the output transistor to switch HIGH (sourcing current to the PLC input). The PLC reads a logic-1 state. No target = output LOW (off). The 800 Hz switching frequency supports high-speed counting applications when used with high-speed counter (HSC) input modules.
Sourcing & Quality Verification
- All SCP401 units sourced by Konmask.com are procured through authorized Schneider Electric distribution channels or verified surplus with full traceability documentation.
- Each unit undergoes incoming inspection: visual check, label verification (date code, country of origin), and functional switching test at 24 V DC before dispatch.
- Counterfeit risk mitigation: holograms, laser-etched part numbers, and packaging integrity are verified against Schneider Electric’s current authentication standards.
- Certificate of Conformance (CoC) available upon request for regulated industries.
Procurement Process
- Step 1: Add to cart and complete checkout — secure payment via major cards, PayPal, or T/T bank transfer for bulk orders.
- Step 2: Order confirmation and stock verification within 1 business day.
- Step 3: Dispatch within 2–5 business days; DHL / FedEx Express available for urgent requirements.
- Step 4: Tracking number issued via email; estimated delivery 5–12 business days international.
- Bulk / Project Pricing: Contact [email protected] for orders of 10+ units — volume discounts available.
Technical FAQ
Q: Can the SCP401 detect aluminum or stainless steel targets?
A: Yes, but with a correction factor. Aluminum ≈ 0.35×Sn; stainless steel ≈ 0.85×Sn. Effective sensing distance for aluminum is approximately 1.4 mm.
Q: Is the SCP401 compatible with NPN input PLC cards?
A: The SCP401 is a PNP sourcing output. For NPN sinking PLC inputs, a PNP-to-NPN signal converter relay or a different sensor variant (NPN output) is required.
Q: What is the cable/connector specification?
A: M12 4-pin A-coded male connector. Standard M12 PVC or PUR cordsets (0.3 m to 10 m) are compatible and available separately.
Q: Can it be flush-mounted in a metal bracket?
A: The SCP401 is a non-flush (non-embeddable) type. A minimum clearance of 1× sensor diameter must be maintained around the active face when mounting in metal.
Q: What is the warranty?
A: Konmask.com provides a 12-month warranty against manufacturing defects. Damage from incorrect wiring, overvoltage, or mechanical impact is excluded.
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