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Wago 787-1644
Features:Switched-mode power supply with TopBoost, enabling secondary-side protection via circuit breakersNatural convection cooling when horizontally mountedEncapsulated for use in control cabinetsDC…
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Description
Features:Switched-mode power supply with TopBoost, enabling secondary-side protection via circuit breakersNatural convection cooling when horizontally mountedEncapsulated for use in control cabinetsDC OK contactSuitable for both parallel and series operation Electrically isolated output voltage (SELV) per ULÂ 60950-1; PELV per ENÂ 60204
Specification
Technical data - Input
| Phases | 2 / 3 |
|---|---|
| Nominal input voltage U<sub>i nom</sub> | (2 / 3) x 400 … 500 VAC |
| Input voltage range | (2 / 3) x 320 … 575 VAC; 450 … 800 VDC |
| Nominal mains frequency range | 47 … 63 Hz; 0 Hz |
| Input current I<sub>i</sub> | ≤ 3 x 2.15 A (400 VAC); ≤ 3 x 1.82 A (500 VAC) |
| Inrush current | ≤ 30 A (NTC) |
| Power factor correction (PFC) | Passive |
| Mains failure hold-up time | ≥ 25 ms (500 VAC); ≥ 15 ms (400 VAC) |
Technical data - Output
| Nominal output voltage U<sub>o nom</sub> | 24 VDC (SELV) |
|---|---|
| Output voltage range | 23 … 28.5 VDC (adjustable) |
| Default setting | DC 24 V |
| Nominal output current I<sub>o nom</sub> | 40 A (24 VDC) |
| Nominal output power | 960 W |
| Deviation | ≤ 1 % |
| Residual ripple | ≤ 30 mV (peak-to-peak) |
| Current limitation | 1.1 x Io nom (typ.) |
| Overload behavior | Constant current |
Technical data - Signaling and communication
| Signaling | 1 x DC OK LED (green), 1 x DC OK contact (make contact; max. 30 VAC/DC; 1 A) |
|---|---|
| Operation status indicator | Green LED (Uo) |
Technical data - Efficiency/power losses
| Power loss P<sub>l</sub> | ≤ 4.2 W; ≤ 83.9 W (400 VAC; nominal load) |
|---|---|
| Power loss (max.) P<sub>l (max.)</sub> | 83.9 W (500 VAC / 24 VDC; 40 A) |
| Efficiency (typ.) | 92 % |
Technical data - Circuit protection
| Internal fuse | No |
|---|---|
| Pre-fuse (required) | Alternative: motor circuit breaker, An external DC fuse is required for the DC input voltage. |
Safety and protection
| Isolation voltage (sec.-PE) | 0.7 kVDC |
|---|---|
| Protection class | I |
| Protection type | IP20; per EN 60529 |
| Resistance to reverse feed | ≤ 35 VDC |
| Overvoltage category | II |
| Pollution degree | 2 |
| Transient suppression (primary) | Varistor |
| Overvoltage protection; secondary | Internal protective circuit, ≤ 40 VDC (in the event of a fault) |
| Short-circuit-protected | Yes |
| Open-circuit-proof | Yes |
| Parallel operation | Yes |
| Series operation | Yes |
| MTBF | > 500,000 h (per IEC 61709) |
Connection data - Connection 1
| Connection type | Input/signaling |
|---|---|
| Connection technology | CAGE CLAMP® |
| WAGO connector | WAGO 721 Series |
| Solid conductor | 0.08 … 2.5 mm² / 28 … 12 AWG |
| Fine-stranded conductor | 0.08 … 2.5 mm² / 28 … 12 AWG |
| Strip length | 8 … 9 mm / 0.31 … 0.35 inches |
Connection data - Connection 2
| Connection type | Output |
|---|---|
| Connection technology | Push-in CAGE CLAMP® |
| WAGO connector | WAGO 831 Series |
| Solid conductor | 0.5 … 10 mm² / 20 … 8 AWG |
| Fine-stranded conductor | 0.5 … 10 mm² / 20 … 8 AWG |
| Strip length | 13 … 15 mm / 0.51 … 0.59 inches |
Physical data
| Width | 126 mm / 4.96 inches |
|---|---|
| Height | 127 mm / 5 inches |
| Depth from upper-edge of DIN-rail | 198 mm / 7.795 inches |
Mechanical data
| Mounting type | DIN-35 rail |
|---|
Material data
| Fire load | 0.914 MJ |
|---|---|
| Weight | 2800 g |
Environmental requirements
| Ambient temperature (operation) | -25 … +70 °C (Device starts at -40 °C (type-tested)) |
|---|---|
| Ambient temperature (storage) | -25 … +85 °C |
| Relative humidity | 5 … 96 % (no condensation permissible) |
| Derating | −2.5 %/K (> 55 °C) |
Standards and specifications
| Conformity marking | CE |
|---|---|
| Standards/specifications | EN 61010-1, EN 61010-2-201, EN 61204-3, UL 60950-1, UL 508, DNV, SEMI F47 |
Commercial data
| PU (SPU) | 1 pcs |
|---|---|
| Packaging type | box |
| Country of origin | DE |
| GTIN | 4055143259187 |
| Customs tariff number | 85044083900 |
Product Classification
| UNSPSC | 39121004 |
|---|---|
| eCl@ss 10.0 | 27-04-07-01 |
| eCl@ss 9.0 | 27-04-07-01 |
| ETIM 9.0 | EC002540 |
| ETIM 10.0 | EC002540 |
| ECCN | NO US CLASSIFICATION |
Environmental Product Compliance
| RoHS Compliance Status | Compliant,No Exemption |
|---|
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