The Allen-Bradley 1746-P1 provides regulated DC power to SLC 500 modular hardware. This rack-mounted unit energizes the backplane to support processors and I/O modules. It occupies the dedicated power supply slot on the left side of the chassis. Consequently, the module maintains electrical stability across the entire control system. This hardware is essential for both small standalone machines and larger distributed networks. It ensures consistent data processing by filtering raw industrial power effectively.
Flexible Input Voltage and Regulated Outputs
This power supply features a dual-range AC input for global compatibility. Users can select between 120V and 240V AC ranges using an internal jumper. The unit then converts this input into two distinct DC voltage rails. Specifically, it provides 2 Amperes at 5V DC for internal logic circuits. It also offers 0.46 Amperes at 24V DC for peripheral devices. This auxiliary output simplifies wiring by powering local sensors and small relays directly.
Essential Technical Specifications
- Input Voltage (120V Range): 85–132V AC
- Input Voltage (240V Range): 170–265V AC
- Backplane Current (5V DC): 2.0 Amperes
- Backplane Current (24V DC): 0.46 Amperes
- Input Frequency: 47–63 Hz
- Operating Temperature: 0 to 60°C (32 to 140°F)
- Fuse Protection: Standard 1.25 Ampere, 250V fuse
- Typical Hold-up Time: 20ms at full load
Industrial Protection and Installation Requirements
The 1746-P1 includes an integrated hold-up time to handle brief power interruptions. This feature allows the SLC processor to save critical data during voltage dips. Furthermore, the robust housing facilitates heat dissipation in high-temperature environments. Technicians must verify the voltage jumper setting before applying power to prevent hardware failure. The module also features a clear status LED for immediate power verification. This combination of safety and performance makes it a reliable choice for legacy system maintenance.
Reviews
There are no reviews yet.