Introduction to HONEYWELL TK-PRS021
TK-PRS021 Product Overview
The HONEYWELL TK-PRS021 is a high-reliability power supply monitoring and redundant switching module under the TK series, tailored for industrial control systems. As a key power management component, it offers real-time monitoring of power status and seamless redundant switching to ensure uninterrupted power for critical control elements like DCS controllers, communication modules, and I/O modules. Equipped with advanced voltage and current detection circuits, it quickly identifies anomalies such as overvoltage, undervoltage, and power outages, triggering automatic switching to backup power within milliseconds. Its rugged design includes electrical isolation and surge protection, shielding the power system from electromagnetic interference and voltage spikes in harsh industrial settings. The compact, modular structure supports standard cabinet rail mounting, enabling easy integration into existing Honeywell control architectures.
TK-PRS021 Technical Specifications
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Product Model: TK-PRS021
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Product Type: Power Supply Monitoring & Redundant Switching Module (TK Series)
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Core Functions: Real-time power status monitoring; Overvoltage/undervoltage detection; Power failure alarm; Seamless redundant power switching; Surge and overcurrent protection; Fault status indication and signal output
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Power Specifications: Input Voltage: 24VDC (dual redundant input); Voltage Detection Range: 18VDC – 32VDC; Switching Time: ≤5ms (automatic redundant switching); Output Voltage: 24VDC (stable output)
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Monitoring Parameters: Input voltage, output current, power continuity; Configurable alarm thresholds (≥28VDC for overvoltage, ≤20VDC for undervoltage)
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Interfaces: 2 power input channels (main/backup); 4 power output channels (for various load modules); 2 dry contact alarm output channels; LED indicators for main power, backup power, normal operation, and fault
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Power Consumption: Typical 3W, Maximum 5W @ 24VDC
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Environmental Ratings: Operating Temperature: -40°C to +70°C; Storage Temperature: -40°C to +85°C; Relative Humidity: 5% – 95% (non-condensing); Vibration Resistance: 5g (10-500Hz)
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Mechanical Details: Mounting: Standard cabinet rail; Dimensions (L×W×H): Approx. 110mm × 80mm × 45mm; Net Weight: Approx. 0.3kg; Protection Rating: IP20
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