Overview

• Global Approvals: Suitable for a wide range of industrial applications
• Input Voltage: AC 115V/230V, DC 240...375V
• Output Voltage: 24V/8A
• Current Limitation: 8A maximum
• Relay Contact: RDY relay contact included
• Design: Robust mechanical structure with EMC (Electromagnetic Compatibility) protection

Specifications

Input

• Voltage Range:

  • AC: 100V...120V / 200V...240V (switchable)
  • DC: 240V...375V
  • Frequency: 47...63 Hz
  • DC Input: Always keep the switch in the 230V position for DC input.

• Input Current:

  • 5A (with switch set to 115V)
  • 2.3A (with switch set to 230V)

• DC Input at Open Output: 8 mA (preserves battery sources)

• Inrush Current:

  • Typical: < 30A at 264V AC during cold start

• Protection:

  • If using a fuse or circuit breaker, a 10A slow-acting fuse (HBC) or supplementary protector (1492-SPU1C100) is recommended.
  • Always consult local codes and regulations for proper installation.

• Transient Handling:

  • Transient resistance according to VDE 0160 / W2 (750V / 1.3ms), valid for all load conditions.

• Hold-up Time:

  • 30 ms at 196VAC, 24V/8A (refer to diagram for more details)

Efficiency & Reliability

• Efficiency:
  • Typical: 90% (230V AC, 24V/8A)
• Power Losses:
  • Typical: 21.3 W (230V AC, 24V/8A)
• MTBF:
  • 390,000 hours according to Siemensnorm SN 29500 (24V/8A, 230VAC, Tamb = +40°C)
• Electrolytic Capacitors:
  • Uses long-life electrolytics rated for +105°C for higher reliability.

Start / Overload Behavior

• Startup Delay:

  • Typical: 0.1 seconds

• Rise Time:

  • Approximately 5...20 ms, depending on load

• Overload Behavior:

  • No disconnection or hiccup during overload conditions
  • Current is limited to 8A
  • Continuously delivers 8A up to +70°C
  • No “sticking” behavior commonly found in fold-back characteristics

Output

• Rated Output Voltage:

  • 24V DC ± 0.5%

• Output Noise Suppression:

  • Radiated EMI values comply with EN50081-1, even with long, unscreened output cables.

• Ambient Temperature Range:

  • Operation: 0°C...+70°C
  • Storage: -25°C...+85°C

• Continuous Loading with Convection Cooling:

  • Tamb = 0°C...70°C, 24V/8A

• Output Protection:

  • Protected against short circuits, open circuits, and overloads

• Voltage Regulation:

  • Better than 2% overall

• Ripple / Noise:

  • < 30 mVPP (20 MHz bandwidth, 50Ω measurement)

• Overvoltage Protection:

  • Typically 35V

• Parallel Operation:

  • Yes, with current sharing available 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 from output voltage
  • Contact Rating: 1A at 28V DC

Construction & Mechanics

• Housing Dimensions:

  • W x H x D: 120 mm x 124 mm x 102 mm (with DIN rail)
  • Recommended free space for ventilation:
    • Above/below: 25 mm
    • Left/right: 15 mm

• Weight:

  • 980 g

• Design Features:

  • Input and output are pluggable using Combicon® connectors

• Wire Size:

  • Input/Output:
    • Stranded: 22...12 AWG (0.2...2.5 mm²)
    • Solid: 22...12 AWG (0.2...2.5 mm²)

• Tightening Torque:

  • 3.5 lbs in (0.4 Nm) recommended for pluggable connections