DX-R1-B Series Non-contact Magnetic Code Safety Switch
The DX-R1-B series safety switch features detection confidentiality (providing a unique code), strong anti-interference and high safety / reliability. Using dual-channel safety output technology, it achieves safety level PLe and effectively prevents false alarms, missed alarms or abnormal triggering by humans. It pairs naturally with our safety door latches.
The DX-R1-B magnetic-encoding safety switch is designed with multiple magnetic-sensitive elements. These elements must be triggered in a specific sequence for normal operation. The unit is non-contact actuated, has high misalignment tolerance, a large detection range, is easy to install, supports cascade connection in multiple units, and is CE certified — meeting ISO 13849-1 SIL3 / PLe / Category 4.
Technical Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Horizontal make distance | 0 – 10 mm | Protection rating (IP code) | IP65 / IP67 / IP68 (on request) |
| Horizontal break distance | > 25 mm | Coding level | Universal coding · Low-level coded (ISO 14119) |
| Vertical make distance | 0 – 6 mm | Unique coding | High-level coded (ISO 14119) |
| Vertical break distance | > 15 mm | Interlock type | Type 4 (ISO 14119) |
| Repeatability | 0.5 mm | Operating frequency | 1 Hz |
| Operating voltage | DC 24 V | Operating temperature | −10 °C to +55 °C |
| Operating current | 30 mA | Relative humidity | 5 % – 95 % |
| Safety output current | 150 mA | Material | Flame-retardant thermoplastic |
| Auxiliary output current | 50 mA | Cascading capability | Cascadable model available (optional) |
| Response time | 60 ms | Diagnostic output | Supported |
| Connection method | Direct cable outlet, 2 m lead | ||
Model Selection
| Model | Specifications |
|---|---|
| DX-R1-B-FN-S-P1 | 4-core direct cable, dual-channel NPN output, 2 m lead |
| DX-R1-B-FP-S-P1 | 4-core direct cable, dual-channel PNP output, 2 m lead |
| DX-R1-B-EN-S-P1 | 6-core direct cable, dual-channel NPN output with cascade, 2 m lead |
| DX-R1-B-EP-S-P1 | 6-core direct cable, dual-channel PNP output with cascade, 2 m lead |
| DX-R1-B-FN-D-P1 | 4-core direct cable, dual-channel NPN output, 2 m lead — actuator with unique coding |
| DX-R1-B-FP-D-P1 | 4-core direct cable, dual-channel PNP output, 2 m lead — actuator with unique coding |
| DX-R1-B-EN-D-P1 | 6-core direct cable, dual-channel NPN output with cascade, 2 m lead — actuator with unique coding |
| DX-R1-B-EP-D-P1 | 6-core direct cable, dual-channel PNP output with cascade, 2 m lead — actuator with unique coding |
Key Engineering Advantages
- Non-contact actuation: no mechanical wear at the sensor — long service life and high reliability.
- Multiple magnetic elements + sequence trigger: prevents bypass with simple permanent magnets — meets ISO 14119 high-level coded requirements.
- Dual-channel OSSD: safety output to PLe / SIL3 / Cat.4 for high-risk hydraulic / mechanical machine guarding.
- Misalignment tolerance: 0 – 10 mm horizontal / 0 – 6 mm vertical make distance — forgiving on settled doors and warped frames.
- Cascadable: chain multiple units (E-models) into a single safety loop, reducing PLC input points.
- Flexible coding: universal coding for general use, unique coding (D-models) for high-confidentiality applications.
- Diagnostic output: supports status diagnosis for predictive maintenance and faster troubleshooting.
- Certified: CE marked; designed to ISO 13849-1, IEC 60947-5-3 and ISO 14119.
Typical Applications
- Guard doors on machine tools and CNC enclosures.
- Robotic cells — entry / loading hatches and fence gates.
- Hazardous-area isolation zones — chemical, pharmaceutical, food & beverage rooms.
- Test & calibration cabinets where high-confidentiality / anti-tamper coding is required.
- Combined deployment with DX-D6 electromagnetic door locks for redundant interlock chains.
Frequently Asked Questions
Is the DX-R1-B an ISO 14119 high-level coded interlock?
Yes. The DX-R1-B uses multiple magnetic-sensitive elements that must be triggered in a unique sequence, so the unique-coding D-models qualify as high-level coded actuators under ISO 14119, the strongest tamper-resistance class. Universal-coded versions are low-level coded. Both are Type 4 non-contact interlocks suitable for guard-door and RFID coded safety switch style applications.
What safety level and performance level does the DX-R1-B reach?
Through its dual-channel safety output, the DX-R1-B reaches ISO 13849-1 PLe, Category 4 and SIL3, the highest levels for guard-door monitoring on high-risk machinery. Pair it with a safety relay or safety PLC that provides EDM feedback and dual-channel evaluation to maintain the full performance level across the complete safety function.
Should I order NPN or PNP, and do I need a cascade model?
PNP (sourcing) suits most modern PLC safety inputs; NPN (sinking) fits some Asian control schemes. Choose an E-model (6-core) when you want to cascade several switches into one safety loop and reduce PLC input points; choose an F-model (4-core) for a single guard door. Match the output and coding type to the unit being replaced.
How much door misalignment does the DX-R1-B tolerate?
It has a horizontal make distance of 0–10 mm and a vertical make distance of 0–6 mm, with break distances above 25 mm and 15 mm respectively. This wide hysteresis tolerates settled doors, warped frames and vibration, while still guaranteeing a guard-door open signal once the actuator moves clearly out of range.
What ingress protection does the DX-R1-B offer for washdown areas?
The standard rating is IP65/IP67, with IP68 available on request, in a flame-retardant thermoplastic housing. This makes it suitable for humid, dusty and washdown environments such as food and beverage, pharmaceutical and chemical isolation rooms. Operating range is −10 °C to +55 °C with 24 V DC supply and a 60 ms response time.
Specs reviewed by Engineer Cai, Senior Application Engineer. CE certified — see certificates.
Safety Light Curtain — Customer Cases
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