Telemecanique XUSL4E3BB081N Type 4 Safety Light Curtain: 3-Beam Body Protection (Hp 810 mm)
The Telemecanique XUSL4E3BB081N is a Type 4 safety light curtain configured for body protection using 3 beams with a specified Hp = 810 mm. This is a common architecture for safeguarding access points where you want a reliable stop command if a person enters a hazardous zone, and where a multi-beam system is an appropriate risk-based measure.
What “3-Beam Body Protection” Means in Practice
Multi-beam systems use discrete beams (rather than a continuous curtain) to detect entry. They are often used where the risk assessment supports body detection rather than finger/hand detection, and where the goal is to prevent full-body access into a hazard zone during machine operation. The design choice must follow applicable standards and a proper safety distance calculation—because the best sensor is ineffective if installed too close to the hazard.
Key Technical Characteristics
Reference information for XUSL4E3BB081N lists 2 safety outputs OSSD solid-state PNP, Type 4 compliance references, and safety integrity references including SIL 3 and PL e / Category 4 depending on the standard framework used. It also notes connector details: M12 5-pin on the transmitter and M12 8-pin on the receiver, plus operational indication via LEDs and support for test/muting through an external module.
| Parameter | Value / Notes |
|---|---|
| Brand + Code + Type | Telemecanique XUSL4E3BB081N safety light curtain |
| Safety type | Type 4 |
| Protection concept | Body protection, 3 beams |
| Height parameter | Hp = 810 mm |
| Safety outputs | 2 x OSSD solid-state PNP |
| Connectors | Transmitter: M12 5-pin; Receiver: M12 8-pin |
| Safety references | SIL 3 / SILCL 3, PL e, Category 4 (as listed) |
Integration Notes: Safety Is a System, Not a Component
- Safety distance: calculate and document the safety distance to hazard based on stopping time and standard requirements.
- OSSD wiring discipline: route OSSD channels with safety architecture best practices—avoid shared wiring errors that defeat diagnostics.
- Fault clarity: make sure your HMI or diagnostics differentiate “curtain interrupted” vs. “fault / misalignment / contamination.”
- Muting governance: if muting is used (via external safety module), treat it as a controlled operational mode with strict conditions and documentation.
Common Use Cases
- Robot cell access where entry must stop motion
- Packaging machines with protected infeed/outfeed zones
- Conveyors and transfer points where body access is the risk driver
For consistent internal linking across the product ecosystem: Telemecanique sensor.
FAQ: Telemecanique XUSL4E3BB081N
Is XUSL4E3BB081N a continuous “curtain” or multi-beam system?
It is described as a 3-beam body protection configuration, not a high-resolution finger protection curtain.
What are OSSD outputs?
OSSDs are safety outputs designed for diagnostic coverage; the device lists 2 safety outputs OSSD solid-state PNP.
What connectors are used?
The reference information lists M12 5-pin on the transmitter and M12 8-pin on the receiver.
How should I name it in safety documentation?
Use Telemecanique XUSL4E3BB081N safety light curtain (Brand + code + type) plus “Type 4, 3 beams, Hp 810 mm, OSSD PNP.”