SS950-20000
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The SS950-20000 is a versatile timer featuring a count speed of 1000 counts per minute and a power consumption of six watts nominal. Built by Danaher as part of their Timers and Controllers series, it operates on 115 VAC or 230 VAC with a voltage variation allowance of ±10 V. This device has a durable Zamak case.
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Product Description:
The Danaher’s SS950-20000 Safety Light Curtain uses infrared LED emitter elements that emit an 880 nm peak wavelength for constant detection precision. In DC applications, this light curtain unit takes 24 volts at ±4 volt tolerance to allow mounting flexibility in low-voltage safety control systems.
Covering a broad input voltage range from 85 to 250 VAC, this curtain supports varied facility power standards without the need for additional electrical conversion hardware. Its protected height of 20 inches provides an optimized vertical detection range for the protection of access points on machinery and automated devices. Measuring a total height of 25.20 inches (639.6 mm) with brackets, the SS950-20000 curtain provides compatibility with standard mounting configurations for a variety of machine types. Its maximum input current at 230 VAC is limited to 0.6 amperes, to ensure efficient operation with minimal loading on facility electrical circuits. In cold start conditions, the maximum inrush current of this light curtain is 60 amperes at 230 VAC, ensuring secure management of startup surges. Fitted with a single normally open status relay contact rated at 125 VAC/DC, this curtain gives a stable output interfacing with safety control relays or PLCs.
This light curtain’s 10-watt relay contact rating with a 0.5 ampere limit ensures safe signal processing for safety stop systems and interlocks. The mechanical life of the relay is specified for a minimum of 5,000,000 cycles, which ensures prolonged operational life under normal usage conditions. The maximum system response time of 25 milliseconds supports rapid interruption signals by this curtain, thus greatly minimizing dangerous machine motion during beam breakage. The SS950-20000 curtain features a 0.375-inch diameter shielded cable, which provides robust shielding against electrical noise for stable signal transmission. The NEMA12/IP65-rated enclosure provides dust ingress and low-pressure water jet protection.
Frequently Asked Questions about SS950-20000:
Q: Why does the SS950-20000 include a shielded cable design?
A: The shielded cable helps reduce electromagnetic interference in industrial environments. This ensures consistent signal transmission between the control unit and sensor elements.
Q: How does the infrared LED wavelength benefit the SS950-20000 Safety Light Curtain?
A: The 880 nm wavelength ensures stable detection and minimizes interference from ambient light. This wavelength is optimal for precise alignment between the emitter and receiver.
Q: What is the purpose of the NEMA12/IP65 enclosure rating?
A: It protects the unit from dust ingress and low-pressure water jets. This allows the SS950-20000 to operate reliably in demanding conditions.
Q: Why is the maximum inrush current important for the SS950-20000?
A: It determines the initial surge capacity during cold start power-up. Proper handling of inrush current prevents electrical circuit damage.
Q: How does the protected height affect performance in the SS950-20000?
A: The 20-inch protected height ensures coverage of specific hazard zones. It allows effective guarding without excessive sensor placement.
