Product Summary
The 1734-EP24DC expansion power supply extends backplane power for Allen-Bradley POINT I/O systems. This module supports up to seventeen I/O modules by passing 24VDC field power to the right side. It creates a new voltage partition, isolating field power from the left-side modules. The unit consumes 9.8 W at 28.8VDC input while dissipating only 3.0 W. Its thermal dissipation sits at 10.0 BTU/hr. Engineers trust this component for reliable distributed control.
Theme D: Expert Technical Evaluation & Performance Review
The 1734-EP24DC provides a stable 24VDC field power rail. This rail supports sensor and actuator loads within the system. The module handles a wide input voltage range. It accepts from 10VDC up to 28.8VDC without issue. This tolerance protects against unstable line conditions. The unit delivers a maximum supply current of 10 amps. This capacity ensures adequate power for downstream modules. The POINTBus output current varies by mounting orientation. Horizontal mounting yields 1 A at 10-19.2V input. It increases to 1.3 A at 19.2-28.8V input for horizontal setups. Vertical mounting delivers a consistent 1 A across the entire voltage range. This flexibility allows engineers to plan cabinet layouts effectively.
The module includes robust environmental protections. It operates reliably from -13°F up to 140°F. Storage tolerance extends from -40°F to 185°F. Humidity levels can reach 95% without condensation issues. This resilience suits harsh factory floor environments. Vibration resistance measures 5g at 10-500 Hz. This rating prevents connection loosening during operation. Shock tolerance reaches 30g for operating conditions. Non-operating shock withstands 50g for transport safety. These specifications confirm the module's durability during machine cycles.
The 1734-EP24DC integrates overvoltage protection directly. It features reverse polarity protection on the input. This safeguard prevents damage from incorrect wiring connections. The inrush current reaches only 6 amps for 10 milliseconds. This low inrush reduces stress on upstream circuit breakers. The module also maintains output voltage during brief interruptions. It holds specifications when input drops for 10 ms at 10V max load. This hold-up time prevents nuisance system resets.
Theme A: Product Procurement & Buyer Guide
Procurement managers must verify system compatibility before ordering. The 1734-EP24DC works exclusively with 1734 POINT I/O adapters. This module does not function as a stand-alone power supply. It serves only as an expansion unit for extending power segments. The system requires a main adapter module on the left. The expansion unit then supports up to 17 modules on its right side. The exact count depends on the current draw of each installed module. Engineers should calculate total current consumption carefully. Use the POINTBus output current values to determine maximum loads. For horizontal mounting, use 1.3 A at 28.8V to calculate maximum modules.
The module's dark gray color aids visual identification. This feature speeds up cabinet inspections and maintenance checks. The unit includes built-in status indicators. A field power status LED shows active power output. A 5V system power indicator confirms backplane communication. These LEDs help technicians verify operation instantly. The module mounts in either horizontal or vertical orientation. This flexibility matches standard cabinet layouts. Ensure the upstream adapter supports the chosen orientation. The voltage isolation rating is 50 volts continuous. This isolation protects the backplane from field power faults.
Logistics & Standard Packaging Details
