Introduction to HONEYWELL 05704-A-0121
05704-A-0121 Product Overview
The HONEYWELL 05704-A-0121 is a high-reliability four-way relay interface card belonging to the 05704 series, specifically designed for industrial and marine automation systems. As a critical interface component, it serves as a bridge between PLC/DCS controllers and various relay-controlled field devices, enabling reliable signal transmission and device control. Equipped with four Single-Pole Single-Throw (SPST) relays, this module can switch high-current and high-voltage loads, making it suitable for controlling a wide range of industrial equipment such as valves, motors, and solenoids. Its robust industrial-grade design features high protection rating and wide operating temperature range, ensuring stable performance in harsh environments with humidity, vibration, and electrical interference—ideal for marine, petrochemical, and manufacturing applications.
05704-A-0121 Technical Specifications
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Product Model: 05704-A-0121
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Product Type: Four-way Relay Interface Card (Honeywell 05704 Series)
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Core Functions: Relay switching control; Interface between PLC/DCS and field devices; High-current/voltage load switching; Real-time operation status indication; Fault monitoring
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Relay Specifications: Relay Type: 4x Single-Pole Single-Throw (SPST); Maximum Output Current: 10A per channel; Maximum RMS Voltage: 800V; Maximum Inrush Current: 280A; Maximum Average Forward Current: 70A
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Power Supply: Operating Voltage: 24VDC; Power Consumption: Typical 3.5W, Maximum 6.5W
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Environmental Ratings: Operating Temperature: -40°C to +85°C; Storage Temperature: -40°C to +85°C; Protection Rating: IP67; Relative Humidity: 5% – 95% (non-condensing)
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Mechanical Details: Dimensions (L×W×H): Approx. 122mm × 52mm × 132mm; Net Weight: Approx. 0.5kg; Terminal Type: 2.5mm² (14 AWG) field terminals; Mounting Type: System 57 rack plug-in
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Other Features: High-quality material for enhanced durability; Modular design for flexible expansion; Clear LED status indicators; Suitable for marine and industrial environments
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