Configured for redundant 24 V DC power delivery in industrial control assemblies, the Allen Bradley 1606‑XL240DR (1606‑XL240DR redundant supply) provides direct electrical regulation and ORing behavior for high‑availability PLC and automation platforms.
Hardware Specifications
Parameter
Specification
Model
1606‑XL240DR
Brand
Allen Bradley
Origin
USA
Weight
0.98 kg (shipping weight 2 kg)
Dimensions
10.20 cm x 12 cm x 12.40 cm
Operating Temp
0 to 70 deg C (>60 deg C with derating)
Power Consumption
Not specified
Core Performance Indicators
24 V / 240 W output, 10 A rated current, <30 mVPP ripple, AC 100–120 V / 200–240 V manual select, 240–375 V DC input, >25 ms hold‑up time @ 196 V AC, typ. 89% efficiency
Backplane Bus Communication Velocity & I/O Density Scaling
In Allen Bradley control architectures, the 1606‑XL240DR stabilizes the DC rail that supports backplane bus communication velocity across PLC racks. A regulated 24 V supply minimizes voltage sag during high‑density I/O updates, ensuring predictable scan timing under varying load conditions. When deployed in redundant configurations, ORing behavior maintains uninterrupted backplane power, preventing communication dropouts during supply switchover. The module’s electrical profile aligns with firmware flash compatibility requirements for controllers that depend on stable DC input during update cycles.
Frequently Asked Questions
Q: Can the 1606‑XL240DR operate with DC input A: Yes. It accepts 240–375 V DC in addition to AC ranges.
Q: What is the rated output capability A: 24 V DC at 10 A, with ripple below 30 mVPP.
Q: Does the unit support hot‑swap in redundant configurations A: Physical replacement must be performed with the system de‑energized; ORing maintains output only during normal dual‑supply operation.
Field Installation Guidelines
Maintain separation between AC input wiring and low‑level DC conductors. Ensure manual AC range selection matches the supply voltage before energizing. Provide adequate ventilation when operating above 60 deg C due to derating requirements. Use proper strain relief on DC output wiring to prevent connector stress. Verify grounding and bonding practices to minimize noise coupling into PLC backplanes.
