Wago | Eco 2 Single Phase Power Supply 24V DC 10A 240W | DIN-35 Rail Mount
The Wago 2687-2146 is a single phase switch mode power supply delivering 24V DC SELV at 10A, for 240W of output. The 2687-2146 mounts to DIN-35 rail and measures 50mm wide by 130mm high by 130mm deep. It accepts 100 to 240V AC input, terminates through push-in CAGE CLAMP connections, and carries a DC OK contact with digital signal output.
Panel width is finite and every DIN module competes for it. At 50mm wide the unit occupies modest rail space for a 240W supply, and the 94 percent typical efficiency keeps power loss to 13W at nominal load, which limits the heat added to the enclosure. Input draw is 1.1A or less at 230V AC, with inrush held to 25A after the first millisecond.
Diagnosing a dead 24V rail is faster when the supply reports its own state. Optical indicators show DC OK and flag overload at the unit, and a digital signal output passes that status to a controller. Under sustained overload the supply holds constant current to between 105 and 110 percent, then shuts down and restarts automatically once a short circuit clears.
Features
- 24V DC SELV output at 10A — 240W nominal, adjustable across 23 to 28V DC from the 24V default setting.
- 100 to 240V AC single phase input — accepts 90 to 264V AC across the full range at 50 to 60Hz.
- 94 percent typical efficiency — power loss is 3W or less at no load and 13W or less at nominal load.
- Active power factor correction — power factor of 0.95 or better on the input side.
- Series and parallel operation — the unit supports both configurations for redundancy or higher combined output.
- Defined overload behaviour — constant current to 105 or 110 percent, then shutdown with automatic restart once a short circuit clears.
- DC OK and overload indication — optical status at the unit plus a digital signal output for remote monitoring.
- Push-in CAGE CLAMP terminations — 0.2 to 4mm2 solid or fine-stranded conductors, 9 to 11mm strip length.
- 50 x 130 x 130mm at 800g — 50mm of DIN rail width, 130mm high, 130mm deep from the upper edge of the rail.
- Minus 25 to plus 70 degrees C — with 3 percent per Kelvin derating above 45 degrees C, to 5000m altitude.
- IP20 and protection class I — enclosure mounting is required, and the unit needs a protective earth connection.
- Approved to EN and UL — EN 61010-1, EN 61010-2-201, EN 61204-3, UL 61010-1, UL 61010-2-201, and UL 121201 for hazardous locations.
Where to use
- Control panel 24V supply — the 2687-2146 feeds PLCs, relays, and control gear from a single phase mains connection.
- Sensor and instrumentation power — supplying field devices that expect a regulated SELV 24V rail with low ripple.
- Building automation panels — HVAC controls, access systems, and monitoring equipment on a shared 24V bus.
- Industrial machine control — plant and process assemblies drawing up to 240W from a single supply.
- Redundant supply arrangements — parallel operation allows two units to share or back up the same load.
- Hazardous location panels — the unit carries UL 121201 approval where that classification applies.
The 2687-2146 is IP20 and protection class I, so it mounts inside an enclosure and requires a protective earth connection. Output derates by 3 percent per Kelvin above 45 degrees C, and overvoltage category drops from III to II above 2000m, so both need accounting for in hot or high-altitude installations. Upstream protection, enclosure selection, and termination are the licensed electrician's determination under AS/NZS 3000.
