1454-9F A-B Control Unit
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IN STOCK1454-9F A-B Control Unit
You can mount the 825-P in a sheltered indoor environment (a building or an enclosed cabinet) that does not exceed the temperature and humidity ratings for the relay. The relay can be mounted indoors or in an outdoor (extended) enclosure where the relay is protected against exposure to direct sunlight, precipitation, and full wind pressure, but neither temperature nor humidity are controlled. Refer to Appendix:A Specifications for environmental ratings.
The power terminals on the rear panel (A1+ and A2-) must connect to 110…240V AC or 110…250V DC for the 825-PD and 24…48V DC for the 825- PZ. For complete power input specifications, see Appendix:A Specifications. The power terminals are isolated from the chassis ground. Use 16 AWG (1.5 mm2 ) size or heavier wire to connect to the POWER terminals. Connection to external power must comply with IEC 947-1 and IEC 947-3. Place an external switch, circuit breaker, or overcurrent device in the power leads for the 825-P; this device must interrupt both the positive (A1+)and neutral (A2-) power leads. The maximum current rating for the power disconnect circuit breaker or overcurrent device (fuse) must be 20 A. Be sure to locate this device within 3.0 m (9.8 ft.) of the relay. Operational power is internally fused by power supply fuse. See Field Serviceability on page 31 for details. Be sure to use fuses that comply with IEC 127-2.
This section describes fail-safe versus non-fail-safe tripping, describes voltage connections, and provides the AC and DC wiring diagrams for the following applications: • Across the line starting • Star-delta starting • Two-speed motor
The structure and details of the product：
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