GE DS3828CSN1A
The GE DS3828CSN1A is a motor protection and monitoring relay used for medium and low-voltage induction motors. It integrates motor protection, measurement, and monitoring functions.
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Product Type: Motor Protection & Monitoring Relay
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Rated Voltage: 110 VAC / 220 VAC / 24 VAC-DC (optional)
Detailed content
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Current Input: 1 A or 5 A (via CT connection)
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Measurement Accuracy: Current ±1.0%, Voltage ±1.0%, Power ±2.0%
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Protection Functions:
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Overcurrent (50/51)
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Undercurrent (46)
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Overvoltage (59)
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Undervoltage (27)
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Ground fault (50G)
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Phase imbalance (46)
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Thermal overload (49)
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Startup timeout protection
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Locked rotor protection
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Communication Interface: RS485 Modbus RTU
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Auxiliary Outputs: 4 programmable relay outputs
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Event Logging: Up to 64 events
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Local Operation: LED status indicators; local key parameter setting
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Performance:
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Operating Temperature: –10°C to +55°C
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Protection Rating: IP51
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Power Consumption: ≤4 VA (AC powered)
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Mounting: DIN rail
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Dimensions: Approx. 96 mm (W) × 112 mm (H) × 80 mm (D)
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Materials:
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Housing: Flame-retardant ABS engineering plastic (UL94 V-0)
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Terminals: Phosphor bronze, nickel-plated
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Front panel: Polycarbonate
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Structural Features: DIN rail mounting with standard 96 mm cutout; front panel with 4-digit LED display and 6 status indicators; plug-in terminal block at bottom; RS485 communication port on side
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Working Principle: CTs collect motor current signals, which are converted by A/D and processed by a microprocessor executing protection algorithms.
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Installation Requirements: Mount on DIN rail; separate CT secondary wiring from control wiring; ensure proper grounding.
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Usage Notes: CT ratio must be correctly programmed; perform periodic functional testing of protection elements; maintain dry storage environment.












