USD 327.77
Three-phase DIN-rail PSU, 24 VDC 6.25 A, 150 W, adjustable 22–28 VDC, DC OK contact, IP20.
WAGO 787-738 is an EPSITRON ECO three-phase switched-mode DIN-rail power supply with 24 VDC output, 6.25 A rated current, and 150 W output power. It accepts 2- or 3-phase AC input in the 400 to 500 V class with an extended operating range, provides adjustable 22 to 28 VDC output, and includes a DC OK signal contact plus LED status indication. The unit is designed for industrial control cabinets with protective isolation, constant-power overload behavior, and parallel/series operation support.
| Parameter | Value |
|---|---|
| Input phases | 2 / 3 |
| Nominal input voltage | (2 / 3) x AC 400 ... 500 V |
| Input voltage range | (2 / 3) x AC 360 ... 575 V; DC 500 ... 650 V |
| Nominal mains frequency range | 47 ... 63 Hz; 0 Hz |
| Input current | ≤ 3 x 0.6 A (400 VAC; 6.25 ADC) |
| Discharge current | ≤ 3.5 mA |
| Inrush current | ≤ 25 A |
| Power factor | ≥ 0.5 |
| Power factor correction | Passive |
| Mains failure hold-up time | ≥ 17 ms (3 x 400 VAC) |
| Nominal output voltage | DC 24 V (SELV) |
| Output voltage range | DC 22 ... 28 V (adjustable) |
| Default setting | DC 24 V |
| Nominal output current | 6.25 A (24 VDC) |
| Nominal output power | 150 W |
| Control deviation | ≤ 1 % |
| Residual ripple | ≤ 100 mV (peak-to-peak) |
| Overload behavior | Constant power; shutdown and automatic restart in the event of a short circuit |
| DC OK signaling | 1 x LED DC OK (green), 1 x Overload LED (red), 1 x DC OK signal output (optocoupler as make contact; max. 31.2 V; 20 mA) |
| Isolation voltage (Pri.-Sec.) | DC 4.242 kV |
| Isolation voltage (Pri.-GND) | DC 2.2 kV |
| Isolation voltage (Sec.-GND) | DC 0.7 kV |
| Isolation voltage (Sec.-Signal) | DC 0.7 kV |
| Protection class | I |
| Protection type | IP20 |
| Overvoltage category | II |
| Pollution degree | 2 |
| Connection technology | Push-in CAGE CLAMP® |
| Input/Output conductor range | 0.5 ... 6 mm² / 20 ... 10 AWG |
| Signal conductor range | 0.2 ... 1.5 mm² / 24 ... 14 AWG |
| Strip length (input/output) | 11 ... 12 mm / 0.43 ... 0.47 inch |
| Strip length (signal) | 8 ... 9 mm / 0.31 ... 0.35 inch |
| Mounting type | DIN-35 rail |
| Width | 50 mm / 1.969 inch |
| Height | 130 mm / 5.118 inch |
| Depth from upper edge of DIN-rail | 92 mm / 3.622 inch |
| Weight | 844 g |
| Operating temperature | -25 ... 70 °C |
| Storage temperature | -40 ... 85 °C |
| Relative humidity | 10 ... 95 % (no condensation permissible) |
| Efficiency (typ.) | 87 % |
| Power loss | ≤ 18.5 W |
| Power loss (max.) | 20 W |
| Internal fuse | 3 x T 2 A / 250 VAC |
| Standards/Specifications | EN 62368-1; EN 61204-3 (Class A); UL 60950-1; UL 508 |
| Country of origin | CN |
Feeds PLCs, relays, sensors, and I/O modules from a three-phase mains source while maintaining stable 24 VDC output and DC OK monitoring.
Converts 400–500 VAC class input to regulated 24 VDC for distributed control loads with status feedback.
The ≥17 ms mains hold-up and isolated output help keep sensitive controls alive through short line disturbances without immediate process interruption.
Prevents nuisance resets during brief supply dips and switching events.
Supports parallel and series operation for scalable 24 V architectures and redundancy-oriented cabinet designs.
Allows current scaling or voltage architecture flexibility without changing the supply family.
