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      1756-PAR2

      ControlLogix Redundant Power Supply kit

      Product Information

      Product Describe

      ControlLogix Redundant Power

      Supply kit. This assembly is

      composed of Two (2) 1756-PA75R

      power supplies, Two (2) 1756-CPR2

      cables and One (1) 1756-PSCA2

      Chassis adapter module.

      • Manufacturer:
        Allen-Bradley
      • Product Category:
        PLC System
      • Spare Part Number:
        1756PAR2
      • Estimated shipping dimensions:
        38.2x31.8x6cm
      • Weight:
        3.25 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Nom Input Voltage:
        120/240VAC
      • Input Voltage Range:
        85-264VAC
      • Isolation Voltage:
        250V (continuous)
      • Max Inrush Current:
        20 Amperes
      • Current Capacity:
        1.5 A at 1.2VDC; 4A at 3.3VDC; 13 A at 5.1VDC and 2.8 A at 24VDC
      • Output Power:
        75 W @ 0…60 °C (32…140 °F)
      • Input Voltage:
        85-265 VAC
      • Hold Up time:
        2 cycles @ 60 Hz; 2 cycles @ 50 Hz
      • Stock:
        30
      By purchasing this item, you agree to the Terms & Conditions
      Moore Automated is NOT an authorized distributor of Allen-Bradley
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      Learn More Policy
      Manuals
      1756-PAR2.pdf
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          FAQ

          • What components are included in the 1756-PAR2 assembly and how do they interoperate?
            The 1756-PAR2 assembly comprises two 1756-PA75R power supplies, two 1756-CPR2 connecting cables, and a 1756-PSCA2 chassis adaptor. Together, these elements form a fully integrated redundancy system that interfaces with the ControlLogix chassis to ensure uninterrupted power distribution across the backplane.
          • What input voltage range does the 1756-PAR2 support for AC mains power, and how does this range facilitate industrial integration?
            The 1756-PAR2 supports a broad AC mains input range of 85–265 VAC (47–63 Hz), enabling compatibility with global power standards and robust performance in diverse industrial environments where line voltage may vary significantly
          • How does the 1756-PAR2 establish power redundancy, and what benefits does this bring to mission-critical ControlLogix deployments?
            The 1756-PAR2 establishes redundancy by paralleling two independent power supplies within a single assembly. If one supply experiences a fault or interruption, the other maintains backplane power, minimizing control system downtime and enhancing availability in high-uptime or safety-critical applications.
          • What isolation and safety characteristics are inherent to the 1756-PAR2 design?
            The 1756-PAR2 exhibits 250 V continuous reinforced insulation between key domains (e.g., power input to backplane and annunciator), and has been tested to 3250 V DC for 60 s for enhanced dielectric robustness, helping to reduce the risk of electrical faults affecting system integrity.
          • How does the 1756-PAR2 perform with respect to inrush current and hold-up time during power disturbances?
            The 1756-PAR2 supports a maximum inrush current of approximately 20 A on startup, and can maintain output hold-up for two AC cycles at both 50 Hz and 60 Hz line frequencies, offering short-term power resilience during transient power disturbances.

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            When it comes to industrial automation supply, Moore Automated leads the way with exceptional quality and reliability. All of our PLC, DCS spare parts and repair services are backed by an unbeatable 1-year warranty, giving you the confidence you deserve when choosing an automation parts supplier.

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