Wago
787-2857
1 / 1
- Part Number
- 787-2857
- Tariff Code
- 85044083900
- UPC
- 4066966241730
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Safety And Protection
- Isolation voltage (pri.-sec., AC)
- 3920 V
- Isolation voltage (pri.-PE, AC)
- 2470 V
- Isolation voltage (sec.-PE)
- DC 0.5 V
- Protection class
- I
- Protection type
- IP20; per EN 60529
- Overvoltage category
- III (≤ 2000 m a. s.l.); II (> 2000 m a. s.l.)
- Pollution degree
- 2
- Overvoltage protection; secondary
- ≤ 32 VDC (in the event of a fault)
- Short-circuit-protected
- Yes
- Open-circuit-proof
- Yes
- Parallel operation
- Yes
- Series operation
- Yes
- MTBF
- > 2,500,000 h (per EN/IEC 61709 at +40 °C)
Environmental Requirements
- Ambient temperature (operation)
- -25 … +70 °C (Nominal mounting position; −25 … +55 °C (in any mounting position))
- Ambient temperature (storage)
- -40 … +85 °C
- Relative humidity
- 5 … 96 % (no condensation permissible)
- Derating
- −1.7 %/K (> 55 °C)
- Operating altitude (max.)
- 5000 m
Connection Data
- Connection type 1
- Input
- Connection technology
- Push-in CAGE CLAMP®
- WAGO connector
- WAGO 804 Series
- Solid conductor
- 0.25 … 2.5 mm² / 20 … 12 AWG
- Fine-stranded conductor
- 0.25 … 2.5 mm² / 22 … 12 AWG
- Strip length
- 10 … 11 mm / 0.39 … 0.43 inches
- Connection type 2
- Output
- Connection technology 2
- Push-in CAGE CLAMP®
- WAGO connector 2
- WAGO 805 Series
- Solid conductor 2
- 0.2 … 1.5 mm² / 24 … 16 AWG
- Fine-stranded conductor 2
- 0.2 … 1.5 mm² / 24 … 16 AWG
- Strip length 2
- 9 … 10 mm / 0.35 … 0.39 inches
- Cable length (max.)
- 30 m
Signaling And Communication
- Signaling
- 1 x Status indication LED (green)
- Operation status indicator
- Green LED (Uo)
Physical Data
- Width
- 36 mm / 1.417 inches
- Height
- 90 mm / 3.543 inches
- Depth
- 62 mm / 2.441 inches
- Depth from upper-edge of DIN-rail
- 55 mm / 2.165 inches
Material Data
- Flammability class per UL94
- V0
- Fire load
- 0.000 MJ
- Weight
- 120.000 g
Input
- Phases
- 1
- Nominal input voltage Ui nom
- 1 x AC 100 … 240 V
- Input voltage range
- 1 x AC 100 … 264 V
- Nominal mains frequency range
- 50 … 60 Hz
- Input current Ii
- ≤ 0.4 A (100 VAC); ≤ 0.2 A (240 VAC)
- Inrush current
- ≤ 24 A (NTC)
- Mains failure hold-up time
- ≥ 95 ms (230 VAC)
Output
- Nominal output voltage Uo nom
- DC 18 V (SELV)
- Nominal output current Io nom
- 1.25 A (18 VDC)
- Nominal output power
- 22 W
- Deviation
- ≤ 2 %
- Residual ripple
- ≤ 60 mV (peak-to-peak)
- Overload behavior
- Hiccup
Standards And Specifications
- Conformity marking
- CE
- Standards/specifications
- EN 61204-3 || EN 61010-1 || EN 61010-2-201 || CULus 61010-1 || CULus 61010-2-201 || DNV
Mechanical Data
- Mounting type
- DIN-35 rail
Specifications
- Product Group Code
- 0006
Commercial Data
- Country of origin
- CN
- GTIN
- 4066966241730
- Customs tariff number
- 85044083900
Efficiency/Power Losses
- Power loss Pl
- ≤ 0.5 W (230 VAC; no load); ≤ 4 W (230 VAC; nominal load)
- Power loss (max.) Pl (max.)
- 5 W (110 VAC / 24 VDC; 1.35 A)
- Efficiency (typ.)
- 88 %
<B>Circuit Protection</B>
- Internal fuse
- T 1.25 A / 250 VAC
- Backup fusing (recommended)
- 16 A (for USA/Canada: 15 A)
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