DQB Ultra-Thin Safety Light Curtain (ESPE)

An ultra-thin safety light curtain for industrial automation. Rectangular 15×30 mm profile with resolutions 10/20/40 mm; standard sensing range 0.3–3 m (optional 0.3–6 m); strong light immunity ≥10,000 Lux (incidence ≥ 5°); response time ≤ 15 ms; enclosure rating IP65. Dual-channel NPN/PNP safety outputs (NO/NC), with OSSD, EDM, and optical synchronization.

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DQB Ultra-Thin Safety Light Curtain main image
DQB dimensions and installation
Dimensions & installation details
DQB appearance and wiring
Appearance & wiring examples
DQB application scenario
Application in machinery
Product Highlights
  • Ultra-thin design: Detection side only 15mm, saving installation space, easy to integrate into compact equipment.
  • High safety: Type 4, PL e; built-in self-monitoring, cross-monitoring, EDM; complies with IEC 61496-1/2, EN ISO 13849-1.
  • Strong anti-interference: ≥10,000 Lux immunity; resists EMI, vibration; response time ≤15 ms for quick shutdown.
  • Solid-state output: Dual-channel NPN/PNP OSSD (NO/NC), supports interlock; no mechanical wear, long lifespan.
  • Easy installation: Optical synchronization; M12 aviation connectors; IP65; status indicators for troubleshooting.
  • Multi-functional: Blanking, muting functions; infrared modulated LED for improved anti-interference.

Data normalized from the provided manual pages; if differences exist, the official datasheet/warranty documents prevail.

Resolution & Application Guide
Resolution (K)Typical Application
10 mmFinger protection (assembly, fixtures, close-to-hazard stations)
20 mmPalm protection (packaging, access openings)
40 mmHand/arm or body presence (aisles, zone guarding)

Protective height H = (n − 1) × K. Overall length L varies by resolution; see spec tables below.

Technical Parameters (DQB Series)

CategoryItemTypical Value / OptionNotes
OpticalOperating principleThrough-beam infrared LED, modulatedEmitter/receiver pair; filtering and anti-interference design
Resolution (K)10 / 20 / 40 mmFinger / Palm / Hand-arm or Body
Protective height (H)H = (n−1) × Kn = number of beams
Response time≤ 15 msVaries with beam count
Ambient light immunity≥ 10,000 LuxIncidence ≥ 5°
Sensing range0.3–3 m (standard); 0.3–6 m (optional)Specify on order
Electrical / I/OSupplyDC 12/24 V; AC 110–220 V (with controller)Reverse/over-voltage protection
Safety outputsDual-channel NPN / PNP, NO/NC selectable (OSSD)Sink current 500 mA; short-circuit protection
Channel capability≤ 200 mA (typ.)Transistor output
ProtectionShort / Over-current / Over-load / Reverse polarityAuto recovery
IndicatorsPower / Run / BlockedClear indication
ConnectorM12 aviation plugWaterproof, optional lengths
SynchronizationOpticalFewer cables, stronger immunity
Mechanical / EnvironmentBody section15 × 30 mm (rectangular)ABS engineering plastic / nylon
Overall lengthL = H + addon (59 mm for 10/20; 52 mm for 40)Approx. values; see tables
Ingress protectionIP65Dust-tight, water-jet resistant
Operating temp.−10 ~ +40 °CStorage −25 ~ +55 °C
HumidityOperating 35–85 %RHStorage 35–95 %RH
ComplianceStandardsIEC 61496-1/-2 (Type 4), EN ISO 13849-1 (PL e)Safety distance per ISO 13855
CertificationsCE, UL, TÜVRefer to delivered certificates
System integrationSafety relay / Safety PLCIndependent dual inputs; EDM support

DQB Series Detailed Specifications

Tables list typical beam counts (n) for each resolution (K) with protective height H and overall length L. Model format: DQBnn/K-H. Example: DQB08/10-70 (K=10, n=8, H=70). Output: Add A/B/C/D (PNP NO / PNP NC / NPN NO / NPN NC).

K (mm)Beams nProtective Height H (mm)Overall Length L (mm)Model ExampleRange
10870129DQB08/10-700.3–3 m
101090149DQB10/10-900.3–3 m
1012110169DQB12/10-1100.3–3 m
1014130189DQB14/10-1300.3–3 m
1016150209DQB16/10-1500.3–3 m
1018170229DQB18/10-1700.3–3 m
1020190249DQB20/10-1900.3–3 m
1022210269DQB22/10-2100.3–3 m
1024230289DQB24/10-2300.3–3 m
1026250309DQB26/10-2500.3–3 m
1028270329DQB28/10-2700.3–3 m
1030290349DQB30/10-2900.3–3 m
1032310369DQB32/10-3100.3–3 m

For 0.3–6 m builds, specify on order. Keep the model format DQBnn/K-H. Add A/B/C/D for output type (PNP NO / PNP NC / NPN NO / NPN NC).

Typical Applications

  • Presses / shears / press brakes: 10–20 mm resolutions suit hand protection; fast response enables shorter safety distance.
  • Assembly fixtures & robot periphery: finger/palm detection with interlocked safety loop; easy maintenance.
  • Packaging / logistics: 40 mm for aisle and presence detection.
  • General machinery: integrate with a safety relay/PLC for stop, interlock and EDM monitoring.

Safety distance reference (ISO 13855): S = K × T + C, where T is machine stopping time.

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