The ALLEN-BRADLEY 1771-P4S is a high-performance power supply module specifically engineered for the PLC-5 family of programmable controllers. This 1-slot unit delivers a steady 8 Amps at 5V DC to the backplane, ensuring stable operation of adjacent I/O and communication modules in critical automation processes. With its 120V AC input compatibility, the 1771-P4S is ideal for North American industrial installations, offering robust line filtering and overvoltage protection. Designed for easy field replacement, it supports hot-swapping without disrupting the entire system, making it a preferred choice for maintenance teams in manufacturing, oil and gas, and water treatment facilities. The module's rugged construction meets UL, CSA, and CE standards, guaranteeing long-term reliability in harsh environments.
| Parameter |
Specification |
| Model Number |
1771-P4S |
| Product Type |
Power Supply Module |
| Compatible System |
ALLEN-BRADLEY PLC-5 |
| Chassis Slot Requirement |
1 Slot |
| Input Voltage |
120V AC (+10% / -15%), 50/60 Hz |
| Output Voltage |
5V DC (Backplane) |
| Output Current |
8 Amps |
| Ripple and Noise |
< 50 mV peak-to-peak |
| Overload Protection |
Auto-reset, current limiting at 110% rated |
| Isolation Voltage |
1500V AC input to output |
| Operating Temperature |
-20°C to +60°C (-4°F to +140°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Humidity Range |
5% to 95% non-condensing |
| Cooling Method |
Natural convection (no fan required) |
| LED Indicators |
Power OK (Green), Fault (Red) |
| Connector Type |
Removable terminal block (3-pin) |
| Weight |
0.7 kg (1.5 lbs) |
| Dimensions (H x W x D) |
178 mm x 51 mm x 127 mm (7.0" x 2.0" x 5.0") |
| Agency Approvals |
UL 508, CSA C22.2 No. 142, CE Mark |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22