OTCT4 certified safety light curtain products meet the safety standards of Type 4 / EN / IEC 61496-1-2 and Cat. 4 PL e / EN ISO 13849-1-2. This safety light curtain effectively detects any opaque object entering the light curtain’s detection area that exceeds its detection precision. It is suitable for safety protection in mechanical presses, hydraulic presses, shearing machines, bending machines, and other hazardous environments.
Technical Specifications
**Standards:**
**2014/30/EU (EMC Directive)**
**2006/42/EC (Machinery Safety Directive)**
**EN/IEC 61496-1 (Type 4 ESPE)**
**EN/IEC 61496-2 (Type 4 AOPD)**
**EN ISO 13849-1/-2 (Category 4, PLe)**
**EN/IEC 61326-1**
**ISO 13855**
**Safety Category:**
**Safety Level:** Type 4 cat.4 Ple SIL3
**DCavg:** 99%
**CCF:** 100
**Optical Characteristics:**
**Detection Light Source:** Infrared LED (center wavelength 850nm)
**Detection Accuracy:** 14 mm, 30 mm, 46 mm
**Detection Distance:** Type A: 0-8m, Type B: 0-15m
**Detection Height:** 232 mm～1672 mm mm (See CT4 Safety Light Curtain Specifications and Parameters List)
Effective Aperture Angle (EAA): Meets IEC61496-2 requirements; EAA < 2.5° for detection distances above 3m
Light Source: Infrared LED (wavelength 850nm)
Environmental Characteristics:
Ambient Temperature: Operating -10～55℃ (no frost or condensation)
Storage -30～70℃
Ambient Humidity: Operating 35%～85%RH
Storage 35%～95%RH
Ambient Illumination: Incandescent: Maximum 3000 Lux
Fluorescent: Maximum 3000 Lux
Sunlight: Maximum 10000 Lux
Protection Rating: IP65, IP67 (IEC60529)
Vibration Resistance: Frequency 10～55Hz, Amplitude 0.35±0.05mm, 20 vibrations each in X, Y, and Z directions
Shock Resistance Acceleration 10g, pulse duration 16ms, 1000 pulses each in X, Y, and Z directions
Dimensions: 52*40*Jmm (J is the length of the emitter and receiver)
Electrical Characteristics
Power Supply Voltage: DC 24 V±20% (ripple ±5%)
Current Consumption (No Load): Transmitter <200 mA
Receiver <200 mA
Response Time: 6 ms～79 ms
Safety Output (OSSD): PNP transistor output ×2
On-state: Load current ≤300mA, output voltage ≥Vcc-2V
Off-state: Leakage current ≤1mA, residual voltage ≤1V (excluding the effect of wire extension)
Capacitive Load: 0.9uF
Inductive Load: 2H at 4Hz, can be increased as frequency decreases
Auxiliary Output (AUX) Non-safety output: One PNP output, inverted phase with OSSD. In light-shielded state, output current ≤300mA, voltage ≥Vcc-2V; in light-on state, output current <2mA, voltage <2V.
External Device Monitoring (EDM): Monitors the status of normally closed contacts when connected to an external relay or contactor load.
OFF state input voltage: 9V~24V
ON state input voltage: 0～7V or open circuit
Manual Reset: A set of normally open contacts can be connected in series in the EDM circuit to achieve manual reset function.
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