1606-XL240DR

Overview

1606-XL240DR Allen-Bradley Bulletin 1606 XL Power Supply is a robust 240 W single-phase DIN rail-mounted supply designed for industrial automation systems, offering high reliability, overload tolerance, and parallel operation capability.

Input Ratings

• AC Input Voltage: 100–120 V / 200–240 V AC (switchable), 47–63 Hz

• Extended Range: 85–132 V AC / 176–264 V AC, 240–375 V DC

• DC Input Note: Switch must remain in 230 V position for DC input

• Input Current: < 6 A @ 115 V / < 2.8 A @ 230 V

• DC Input (open output): 8 mA (battery preservation)

• Inrush Current (typical): < 30 A @ 264 V AC cold start

• Fuse Recommendation: 10 A slow acting fuse (HBC) or 1492-SPU1C100 supplementary protector

Performance Characteristics

• Transient Resistance: VDE 0160 / W2 (750 V / 1.3 ms)

• Hold-up Time: > 25 ms @ 196 V AC, 24 V / 10 A

• Efficiency (typical): 89% @ 230 V AC, 24 V / 10 A

• Losses (typical): 26.7 W @ 230 V AC, 24 V / 10 A

• MTBF: 390,000 h (SN 29500, 24 V / 10 A, Tamb = +40 °C)

• Electrolytics: Long-life, rated +105 °C

Start-Up And Overload Behavior

• Start-up Delay: ~0.1 s

• Rise Time: 5–20 ms (load dependent)

• Overload Design:

  • 20% power boost without disconnection or hiccup

  • High overload current up to 1.6 × nominal

  • 12 A short-term, continuous at 45 °C or forced cooling

• Advantages:

  • High short-circuit current for reliable start-up with motors/DC-DC converters

  • No fold-back “sticking” behavior

  • Reliable secondary fuse operation

Output Characteristics

• Rated Output Voltage: 24 V DC

• Soft Characteristic: 25.2 V DC ±2% no-load, 24 V DC ±0.5% nominal load

• Voltage Regulation: ≤ 2% overall

• Ripple/Noise: < 30 mVpp (20 MHz bandwidth, 50 Ω measurement)

• Overvoltage Protection: ~35 V DC

• Parallel Operation: Supported with current sharing via soft characteristic

Environmental Ratings

• Operating Temperature Range: 0 °C to +70 °C (derating > 60 °C)

• Storage Temperature Range: -25 °C to +85 °C

• Continuous Loading:

  • 24 V / 10 A up to +60 °C

  • 12 A short-term up to +60 °C

• Derating: ~12 W/K from +60 °C to +70 °C

Indicators And Interfaces

• Front Panel Indicator: Green LED

• RDY Relay Contact:

  • Type: Normally open

  • Closes when output voltage > 22.1 V ±4%

  • Opens when output voltage < 19.8 V ±4%

  • Isolation: 500 V DC to output voltage

  • Contact Rating: 1 A @ 28 V DC

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