Description
The Keyence SZ-04M Safety Laser Scanner (part number SZ-04M) is a multifunctional area protection sensor designed to ensure safety around automated machinery and moving equipment. Operating at 24 VDC with a 905 nm infrared laser diode, it provides precise and reliable detection of objects or personnel within a configurable 270° scanning range. Ideal for AGVs, robotic systems, and industrial safety zones, it enables flexible safeguarding with fast response and durable construction.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Keyence |
| Category |
Safety Systems |
| Part Number |
SZ-04M |
| Subcategory |
Safety Laser Scanner |
| Type |
Multi-function Type |
| Power Supply |
24 VDC ±10% |
| Power Consumption |
Max. 9.5 W (without load), Max. 50 W (with load) |
| Detection Angle |
270° (−45° to 225°) |
| Minimum Detectable Object Size |
30 mm to 150 mm (configurable) |
| Response Time (ON to OFF) |
60 to 480 ms (Scan Cycle A) |
| Response Time (OFF to ON) |
ON to OFF +125 ms |
| Max. Protection Zone |
Up to 4.2 m (depends on detectable object size) |
| Max. Warning Zone |
Up to 10 m (non-safety related) |
| Light Source |
Infrared Laser Diode, 905 nm |
| Laser Class |
Class 1 (IEC60825-1, FDA CDRH Part 1040.10) |
| OSSD Output |
PNP/NPN selectable, 4 outputs |
| Max. Load Current (OSSD) |
500 mA |
| AUX Output |
PNP/NPN 6 outputs, 50 mA max. |
| Enclosure Rating |
IP65 (IEC60529) |
| Operating Temperature |
-10°C to +50°C |
| Storage Temperature |
-25°C to +60°C |
| Operating Humidity |
35–85% RH (no condensation) |
| Shock Resistance |
100 m/s² (Approx. 10 G) |
| Vibration Resistance |
10–55 Hz, 0.7 mm amplitude |
| Material (Case/Window) |
Aluminum die-cast (SPHC) / Polycarbonate |
| Weight |
Approx. 1.6 kg (3.53 lb) |
Information About SZ-04M
The SZ-04M is part of the Keyence SZ Series of multifunction-type safety laser scanners built for high-performance detection and personnel protection. It features selectable detection zones, adjustable object size recognition, and supports both PNP and NPN outputs for system compatibility. The scanner’s Class 1 infrared laser diode ensures safe operation while maintaining superior accuracy even in high-reflectance conditions. With IP65 protection, robust aluminum housing, and compliance with IEC61496-3 Type 3 standards, it is designed for demanding industrial safety applications.
Key Features:
- Wide Detection Angle: 270° scanning coverage for broad safety zone monitoring.
- Adjustable Object Detection: Detects objects from 30 mm to 150 mm in diameter based on configuration.
- Fast Response: 60 ms standard scan cycle ensures immediate reaction to intrusions.
- High Protection Zone Range: Detects up to 4.2 m for safety zones and 10 m for warning zones.
- Dual Output Configuration: PNP/NPN selectable outputs for easy integration with control systems.
- Compact, Durable Build: Aluminum die-cast housing and polycarbonate window provide long-term durability.
- IP65 Protection: Resistant to dust and water for use in harsh environments.
- Class 1 Laser Safety: 905 nm infrared diode ensures eye-safe, reliable operation.
- Multi-Function Operation: Supports multiple detection zones and warning configurations.
- Wide Environmental Tolerance: Operates from -10°C to +50°C with up to 85% humidity.
The SZ-04M delivers the reliability and precision required for automated machinery protection, perimeter safety, and robotic area monitoring.
