16 DO

Features

• 16x potential-free relay outputs, 16A.
  • For continuous load above 10A, or for inductive / capacitive loads, we recommend using an auxiliary relay.
  • Relay lifetime: typically 1×10⁵ electrical cycles at 16 A resistive (1 s ON / 9 s OFF), 1×10⁶ mechanical cycles.
  • Maximum total load 50A.
  • Recommended values apply for resistive load. Contact material AgSnO₂. Isolation 4 kV between coil and contacts, 1 kV between open contacts. Times: tON ≤ 10 ms, tOFF ≤ 5 ms.
• Output configurations:
  • Independent switching output
  • AC shutter with internal interlock of both outputs
  • PWM only at low frequency (mechanical relay – recommended ≤ 0.5 Hz, otherwise lifetime decreases significantly).
• Power consumption:
  • Standby mode: 1 W
  • 0.2 W per closed relay (coil 24 V “C” ≈ 2 800 Ω → ~8.6 mA → ~0.2 W)
  • Power loss per 1 A load current: ~0.16 W
  • Max. power loss at full load 50 A and all 16 relays closed:
    1 W + 0.2 W×16 + 0.16 W×50 ≈ 12.2 W
• Power supply 24VDC + -10%
• Protection: IP20, operating temperature: -20 °C to 40 °C
• DIN rail, 6 modules. Width 107 mm, height 59 mm

Wiring information

Each relay is potential-free. Connect outputs as follows:

• Connect the phase (Lx) supply from the distribution board to the first screw terminal of the first output.

• Prepare short jumper cables (“bridges”) and connect them from the same terminal to the common screw of the next output, and continue this way for all outputs sharing the same phase.

• Connect the second screw terminal of each relay output to the respective device (light, socket, motor, etc.).

• Connect the neutral (N) of each device directly to the neutral busbar, not through the module.

• If necessary, multiple phases can be used for different output groups.