WAGO 787-844 - Switch Mode Power Supply 24VDC 960W 40A
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Three-phase switched-mode power supply from WAGO, model 787-844. Rated at 40 A continuous output current with a nominal output voltage of 24 VDC (SELV), featuring TopBoost (100 ADC / 50 ms) and PowerBoost (60 ADC / 4 s) for high peak-load capability. Equipped with a DC OK relay contact for output monitoring and a stand-by input for minimizing power consumption. DIN-35 rail mountable design suited for control cabinets, industrial automation, packaging machinery, and variable frequency drive applications.
Available in stock — ships within 3 days after payment.
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Product overview
| Model | 787-844 |
| Manufacturer | WAGO |
| Product type | Three-phase switched-mode power supply (SMPS), Pro series, DIN-rail mount |
| Quantity / packaging | 1 piece — new in original packaging (OVP) |
| Nominal input voltage | (2 / 3) x 400 … 500 VAC |
| Input voltage range | (2 / 3) x 340 … 550 VAC; 480 … 780 VDC |
| Frequency | 50 … 60 Hz; 0 Hz |
| Nominal output voltage | 24 VDC (SELV) |
| Output voltage range | 22.8 … 28.8 VDC (adjustable) |
| Nominal output current | 40 A (24 VDC) |
| Nominal output power | 960 W |
| PowerBoost | 60 ADC (4 s); 50 ADC (16 s) |
| TopBoost | 100 ADC (50 ms) |
| Efficiency (typ.) | 93.6 % |
| Power loss | ≤ 7 W (standby); ≤ 61.5 W (nominal load) |
| Residual ripple | ≤ 70 mV (peak-to-peak) |
| Mains failure hold-up time | ≥ 15 ms (3 x 400 VAC) |
| Internal fuse | 3 x T 3.2 A / 440 VAC |
| Backup fuse (recommended) | 3 x Circuit breaker: 6 A, 10 A, or 16 A; Tripping characteristic: B or C |
| Isolation voltage (pri.-sec.) | 4.242 kVDC |
| IP protection | IP20 (per EN 60529) |
| Signaling | DC OK LED (green), Error LED (red), Stand-by input, DC OK relay contact (changeover) |
| Parallel / Series operation | Yes / Yes |
| Short-circuit-protected | Yes |
| Input connection | CAGE CLAMP® (WAGO 231 Series); 0.08 … 2.5 mm²; strip length 8 … 9 mm |
| Output connection | Push-in CAGE CLAMP® (WAGO 831 Series); 0.5 … 10 mm²; strip length 13 … 15 mm |
| Signaling connection | CAGE CLAMP® (WAGO 733 Series); 0.08 … 0.5 mm²; strip length 5 … 6 mm |
| Mounting type | DIN-35 rail |
| Dimensions (W × H × D) | 128 × 171 × 205 mm |
| Weight | 2500 g |
| Ambient temperature (operation) | -25 … +55 °C (starts at -40 °C, type-tested) |
| Ambient temperature (storage) | -25 … +85 °C |
| MTBF | > 500,000 h (per IEC 61709) |
| Safety standards | CE, UL 508 (E255817), UL 60950-1 (E255815), EAC, EN 61010-1, EN 61204-3, RoHS |
| Country of origin | Germany (DE) |
| Condition | New — original WAGO unit |
Applications
- Industrial control cabinets requiring a reliable 24 VDC supply from 3-phase 400/500 VAC mains
- Packaging and printing machinery where high peak current (TopBoost / PowerBoost) is needed for motor start-up
- Variable frequency drives and servo drive systems demanding stable, low-ripple DC power
- Automation systems requiring parallel or series PSU operation and output monitoring via DC OK contact
Shipping
- Ships within 3 days after payment
- Secure packaging for safe delivery
- Free delivery within Germany
Warranty & compliance
- 12-month warranty included
- Product is fully compliant with EU industry standards
- VAT invoice included with every order
(GPSR (EU) 2023/988): Contact us at info@liquisto.com for Manufacturer/EU Responsible Party product safety contact details.
