- Two supplies share the chassis current and one supply can carry the full load after the other fails
- The AC input range is 85...265 V at 47...63 Hz with 75 W maximum output
- A complete redundant system uses two power supplies, two 1756-CPR2 cables, and one 1756-PSCA2 adapter
1756-PA75R is an Allen-Bradley ControlLogix AC redundant power supply designed to add uptime protection for critical chassis applications.
A pair of remotely mounted supplies shares chassis current through 1756-CPR2 cables and a 1756-PSCA2 adapter; if one supply fails, the other accommodates the entire chassis load without interrupting chassis activity.
Before installation or replacement, verify Series A hardware, compatible Series B or Series C chassis, pair configuration, cable and adapter catalog numbers, AC input, chassis load, annunciator wiring, grounding, and mounting clearance.
Availability, condition, price, and shipping time for 1756-PA75R are confirmed during quotation.
Allen-Bradley 1756-PA75R AC Redundant Power Supply Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Two remotely mounted supplies share the current required by the ControlLogix chassis
- If one supply fails, the remaining supply accommodates the entire chassis load without interrupting chassis activity
- The redundancy design covers power-supply anomalies and does not make the chassis adapter or cables redundant
- The nominal input is 120 or 240 volts AC at 50 or 60 hertz
- The specified input range is 85 to 265 volts AC at 47 to 63 hertz
- Maximum output power is 75 watts throughout the documented 0 to 60 °C operating range
- A redundant system uses two 1756-PA75R supplies and two 1756-CPR2 cables
- The 1756-PSCA2 passive adapter funnels power to the chassis backplane connector
- 1756-PA75R is documented with 1756-A4/B, 1756-A7/B, 1756-A10/B, 1756-A13/B, and 1756-A17/B chassis
- Critical ControlLogix chassis applications requiring additional uptime protection
- Single-chassis ControlLogix redundant power-supply configurations
- Two-chassis ControlLogix systems using a separate redundant supply pair for each chassis