SD505-DUCTR | Silent Knight Analog Duct Smoke Detector with Relay Module

Silent Knight · Fire & Life Safety

Description  The SD505-DUCTR from Silent Knight is an analog duct smoke detector equipped with a pre-installed relay module designed to detect smoke and combustion byproducts in air ducts. Its metal housing ensures durability while early detection helps prevent the spread of smoke throughout HVAC systems.     Technical Specifications  Condition New/Never Used Surplus Brand Silent Knight Category Smoke Detection Part Number SD505-DUCTR Subcategory Duct Smoke Detectors with Relay Operating Voltage 24 VDC Alarm Relay Contact Rating 10A at 24 VDC, 115 VAC, 240 VAC Trouble Relay Rating 2.5A at 30 VDC Aux. Power Input Current 20mA standby, 62mA alarm SLC Input Current 0.5mA Max. SLS Resistance 50 Ohms Operating Temperature 32°F to 100°F (0°C to 37°C) Humidity Range 10%–85% non-condensing Air Velocity Range 300 – 4000 ft/min Dimensions (H x L x W) 2¼” x 9” x 7¼” Weight 3 lbs       Information About SD505-DUCTR The SD505-DUCTR is a rugged analog photoelectric smoke detector with relay, suitable for integration with IntelliKnight Fire Alarm Control Panels (FACP). The unit provides early warning by sampling air from ducts and relaying smoke detection to control panels, allowing for immediate shutdown of fans or HVAC systems. The included metal backbox ensures sturdy installation, and the unit ships with a 7.5" exhaust tube, an installation template, and screws for mounting. Designed to meet strict standards, this detector supports multiple tube lengths and is UL, CSFM, MEA, and FM approved. Key Features: Two-Wire SLC Connection: Ensures fast and reliable communication with the fire alarm control panel using minimal wiring for efficient system integration. Early Smoke Detection: Detects smoke and combustion products in air ducts, allowing for immediate response to prevent circulation through HVAC systems. Built-in Relay Module: Automatically controls external equipment such as fans and blowers to contain smoke spread in emergency scenarios. Pre-Installed Photoelectric Detector: Comes equipped with an SD505-APS sensor, eliminating the need for separate installation steps and reducing labor time. Bright LED Indicators: Provides at-a-glance status updates, including alarm and communication signal, helping maintenance staff quickly assess detector health. Durable Metal Housing: Constructed with heavy-duty materials and a clear plastic cover for maximum protection and visibility during operation. Multiple Tube Length Compatibility: Supports a variety of standard intake sampling tubes to adapt to different duct sizes and system designs. Tool-Free Maintenance Design: No screens or filters are needed, simplifying servicing and reducing false alarms due to debris buildup. Standards Compliant: Certified to UL, CSFM, MEA, and FM standards for dependable performance in regulated environments. The SD505-DUCTR offers fast and reliable smoke detection in HVAC applications for enhanced safety and compliance.

Brand: Silent Knight · Category: Fire & Life Safety

Key features

• Two-Wire SLC Connection: Ensures fast and reliable communication with the fire alarm control panel using minimal wiring for efficient system integration.
• Early Smoke Detection: Detects smoke and combustion products in air ducts, allowing for immediate response to prevent circulation through HVAC systems.
• Built-in Relay Module: Automatically controls external equipment such as fans and blowers to contain smoke spread in emergency scenarios.
• Pre-Installed Photoelectric Detector: Comes equipped with an SD505-APS sensor, eliminating the need for separate installation steps and reducing labor time.
• Bright LED Indicators: Provides at-a-glance status updates, including alarm and communication signal, helping maintenance staff quickly assess detector health.
• Durable Metal Housing: Constructed with heavy-duty materials and a clear plastic cover for maximum protection and visibility during operation.
• Multiple Tube Length Compatibility: Supports a variety of standard intake sampling tubes to adapt to different duct sizes and system designs.
• Tool-Free Maintenance Design: No screens or filters are needed, simplifying servicing and reducing false alarms due to debris buildup.
• Standards Compliant: Certified to UL, CSFM, MEA, and FM standards for dependable performance in regulated environments.

Specifications

Contact Safety Shops for pricing, delivery and project support in the UAE.