WAGO 787-734 Switched-mode Power Supply

Product Introduction

The WAGO 787-734 is a high-performance switched-mode power supply designed for industrial applications, offering a stable 24 VDC output at 20 A (480 W) with precise voltage regulation. Engineered for reliability in control cabinets, it features natural convection cooling for horizontal mounting, tool-free termination via lever-actuated PCB terminal blocks, and electrical isolation compliant with SELV (UL 60950-1) and PELV (EN 60204). The power supply supports a wide input range (85–264 VAC/130–373 VDC), ensures low ripple (<100 mV), and includes a DC OK contact for system monitoring.

Product Features

Power Specifications:

Output: 24 VDC (adjustable 22–28 V), 20 A, 480 W.

Input: 85–264 VAC or 130–373 VDC, 1-phase, 47–63 Hz (0 Hz compatible).

Efficiency: Power factor ≥0.94 (230 VAC) / ≥0.98 (115 VAC) with active PFC.

Performance & Protection:

Accuracy: Control deviation ≤1%, residual ripple ≤100 mV (peak-to-peak).

Overload Handling: Constant power mode (1.15–1.4x nominal current), short-circuit shutdown with auto-restart.

Mains Hold-up: ≥20 ms at 230 VAC for transient stability.

Design & Installation:

Cooling: Natural convection when mounted horizontally.

Termination: Tool-free lever-actuated PCB terminal blocks for quick wiring.

Mounting: Encapsulated design for control cabinet use.

Electrical Safety & Compliance:

Isolation: SELV (UL 60950-1), PELV (EN 60204).

Inrush Current: ≤30 A; discharge current ≤2 mA.

Monitoring & Connectivity:

DC OK Contact: Bounce-free switching signal via optocoupler for system health indication.

Environmental & Physical:

Dimensions: 6.00 mm² (refer to datasheet for exact size).

Operation: Suitable for industrial environments with stable temperature control.