1606-XLDNET8

Overview

The Allen‑Bradley 1606-XLDNET8 is a power supply designed to convert AC input to a regulated 24V DC output for industrial control applications.

Input Specifications

• Input voltage: AC 100...120/200...240V (switchable), 47...63 Hz (85...132V AC / 176...264V AC, 240...375V DC). Note: At DC input, always leave the switch in the 230V position.
• Input current: 5 A (switch in 115V position); 2.3 A (switch in 230V position).
• DCin at open output: 8 mA (preserves battery sources).
• Inrush current: typ. < 30 A at 264V AC and cold start.
• Fuse recommendation: 10 A slow acting fuse (HBC) or supplementary protector 1492-SPU1C100 recommended for primary side protection. Consult local codes for proper installation.
• Transient handling: Transient resistance acc. to VDE 0160 / W2 (750V / 1.3 ms), for all load conditions.
• Hold‑up time: > 30 ms at 196V AC, 24V/8 A.

Efficiency, Reliability & Lifecycle

• Efficiency: typ. 90% (230V AC, 24V/8 A).
• Losses: typ. 21.3 W (230V AC, 24V/8 A).
• MTBF: 390,000 h acc. to Siemensnorm SN 29500 (24V/8 A, 230V AC, Tamb = +40°C).
• Life cycle (electrolytics): The unit exclusively uses long‑life electrolytics specified for +105°C.

Start / Overload Behavior

• Start‑up delay: typ. 0.1 s.
• Rise time: approx. 5...20 ms, depending on load.
• Overload Behavior:
  • No disconnection, no hiccup if overloaded.
  • Current limited to 8 A.
  • Iout (8 A) continuously delivered up to +70°C.
  • No 'sticking' such as can occur with fold‑back characteristics.

Output Specifications

• Rated output voltage: 24V DC ± 0.5%.
• Output noise suppression: Radiated EMI values below EN 50081‑1, even when using long, unscreened output cables.
• Output protection: Protected against short circuit, open circuit and overload.
• Voltage regulation: Better than 2% Vout overall.
• Ripple / Noise: < 30 mVPP (20 MHz bandwidth, 50 Ω measurement).
• Overvoltage protection: typ. 35V.
• Parallel operation: Yes, current sharing on request.
• Front panel indicator: Green LED.
• RDY relay contact:
  • Type: normally open contact.
  • Closes when output voltage > 22.1V ±4%.
  • Opens when output voltage < 19.8V ±4%.
  • Electrical isolation: 500V DC to output voltage.
  • Contact rating: 1A at 28V DC.

Construction / Mechanics

• Ambient temperature range (Tamb):
  • Operation: 0°C...+70°C.
  • Storage: –25°C...+85°C.
• Rated continuous loading with convection cooling: Tamb = 0°C...70°C, 24V/8 A.
• Housing dimensions (W x H x D): 120 mm x 124 mm x 102 mm (+ DIN Rail).
• Free space for ventilation: above/below 25 mm recommended; left/right 15 mm recommended.
• Weight: 980 g.

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