Allen-Bradley 1746-P2 SLC 500 PLC Power Supply 120/220 VAC 70 W
Allen-Bradley · PLCs & Industrial Controllers
Description The Allen-Bradley 1746-P2 is a modular power supply for the SLC 500 series. It supports 120/220V AC input, delivering 5 A at 5V DC and 0.96 A at 24V DC with built-in fuse protection for reliable operation. Technical Specifications Condition New/Never Used Surplus Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 1746-P2 Series SLC 500 Module Type Power Supply Input Power 70 Watts Input Voltage 120 to 220 Volts AC Typical line power requirement 180VA Inrush Current 20 Amps Backplane Current (5 Volts) 5 amps Internal Current Capacity 5 A at 5V dc; 0.96 A at 24V dc Output Voltage Range 18 to 30 Volts DC CPU Hold up time 20 ms (full load) 3000 ms (no load) Backplane Current (24 Volts) 0.46 Amps Frequency 47 to 63 Hertz Location 1746 Chassis Dimensions 5.5 x 3.3 x 5.7 inches Operating Temperature 0 to 60 Celsius Fuse Protection 1746-F1 or equivalent Information About 1746-P2 The 1746-P2 is part of the Allen-Bradley SLC 500 family, designed to provide regulated power to controllers and modules within a 1746 chassis. It accepts an input voltage range of 85–132V AC or 170–265V AC at 47–63 Hz, with a typical line requirement of 180 VA and an inrush current of up to 20 A. The module delivers 5 A at 5V DC and 0.96 A at 24V DC for the backplane, with an additional 200 mA user-power current capacity at 24V DC (18–30V range). Its CPU hold-up time is 20 ms at full load and up to 3000 ms with no load, ensuring short-term voltage loss resilience. The 1746-P2 features input-to-backplane isolation of 1800V AC RMS for 1 second, open-type enclosure, and jumper terminals for input voltage selection. Measuring 5.5 × 2.9 × 5.7 in and weighing 1.1 kg (2.5 lb), it operates from 0–60 °C and is equipped with short-circuit fuse protection against fire hazards. Key Features: Input voltage flexibility: Supports dual input ranges of 85–132V AC or 170–265V AC at 47–63 Hz, making it adaptable for global installations and different industrial power standards. Power delivery: Provides a total output of 70 W, supplying 5 A at 5V DC and 0.96 A at 24V DC for the backplane, plus an additional 200 mA of user power at 24V DC (18–30V DC range) for field devices. Hold-up performance: Ensures continuity during undervoltage events with a CPU hold-up time of 20 ms at full load and up to 3000 ms at no load, allowing controllers to remain powered through brief drops. Electrical isolation: Offers 1800V AC RMS isolation between input and backplane for 1 second, protecting sensitive control components against electrical faults and surges. Protection features: Integrated fuse protection provides safety against short-circuit conditions, reducing fire hazards while maintaining reliable operation. Inrush current handling: Capable of withstanding up to 20 A inrush current at startup, preventing nuisance tripping when energizing the system. Installation design: Compact, open-style enclosure with jumper terminals for input voltage selection; installs only in a 1746 SLC chassis to ensure compatibility and system integrity. Environmental endurance: Operates reliably within a 0–60 °C temperature range, making it suitable for diverse industrial environments. The 1746-P2 delivers the reliability and precision required for stable power distribution in SLC 500 automation systems.
Brand: Allen-Bradley · Category: PLCs & Industrial Controllers
Key features
- Input voltage flexibility: Supports dual input ranges of 85–132V AC or 170–265V AC at 47–63 Hz, making it adaptable for global installations and different industrial power standards.
- Power delivery: Provides a total output of 70 W, supplying 5 A at 5V DC and 0.96 A at 24V DC for the backplane, plus an additional 200 mA of user power at 24V DC (18–30V DC range) for field devices.
- Hold-up performance: Ensures continuity during undervoltage events with a CPU hold-up time of 20 ms at full load and up to 3000 ms at no load, allowing controllers to remain powered through brief drops.
- Electrical isolation: Offers 1800V AC RMS isolation between input and backplane for 1 second, protecting sensitive control components against electrical faults and surges.
- Protection features: Integrated fuse protection provides safety against short-circuit conditions, reducing fire hazards while maintaining reliable operation.
- Inrush current handling: Capable of withstanding up to 20 A inrush current at startup, preventing nuisance tripping when energizing the system.
- Installation design: Compact, open-style enclosure with jumper terminals for input voltage selection; installs only in a 1746 SLC chassis to ensure compatibility and system integrity.
- Environmental endurance: Operates reliably within a 0–60 °C temperature range, making it suitable for diverse industrial environments.
Specifications
| Manufacturer part number | 1746-P2 |
|---|---|
| Condition | New/Never Used Surplus |
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1746-P2 |
| Series | SLC 500 |
| Module Type | Power Supply |
| Input Power | 70 Watts |
| Input Voltage | 120 to 220 Volts AC |
| Typical line power requirement | 180VA |
| Inrush Current | 20 Amps |
| Backplane Current (5 Volts) | 5 amps |
| Internal Current Capacity | 5 A at 5V dc; 0.96 A at 24V dc |
| Output Voltage Range | 18 to 30 Volts DC |
| CPU Hold up time | 20 ms (full load) 3000 ms (no load) |
| Backplane Current (24 Volts) | 0.46 Amps |
| Frequency | 47 to 63 Hertz |
| Location | 1746 Chassis |
| Dimensions | 5.5 x 3.3 x 5.7 inches |
| Operating Temperature | 0 to 60 Celsius |
| Fuse Protection | 1746-F1 or equivalent |
| Product type | PLC Power Supply Modules |
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