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GE 239-RTD-AN｜Motor Protection Relay｜
1. Control power supply (239-RTD-AN-H low-voltage version)
Control power supply: 20-60 VDC/20-48 VAC (50/60Hz)
Power consumption: ≤ 20 VA
Adaptation scenario: Low voltage DC/AC control circuits (such as small PLCs, instrument systems)
2. Temperature Monitoring (RTD)
Input: 3-channel RTD (stator/bearing hybrid)
Support types: 100 Ω platinum (Pt), 100/120 Ω nickel (Ni), 10 Ω copper (Cu)
Range: -40 ° C to 200 ° C, accuracy ± 2 ° C, dead zone 2 ° C
Wiring: 3-wire system with lead resistance compensation
3. Analog output (AN)
Output: 1 isolated analog signal
Range: 0-1mA/0-20mA/4-20mA Programmable
Purpose: Output heat capacity, load rate, phase current, etc. to DCS/PLC
4. Input/Output (I/O)
Current input: 5A or 1A CT secondary side, true RMS measurement
Digital input: 5 dry contacts (operation, alarm, reset, etc.)
Output relay: 4 channels (trip, alarm, auxiliary, service)
Contact capacity: 10A @ 250VAC/30VDC (resistive)
Communication: RS-485, Modbus RTU, half duplex isolation
Panel: 40 character backlit LCD+6 status LEDs
5. Environment and Machinery
Working temperature: -40 ° C to 60 ° C
Protection: Panel IP40, whole machine IP20, normal coating for harsh environments
Size/Weight: Approximately 144 × 144 × 200mm, 1.8kg (4lb)
Certification: UL, CSA, CE
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