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wagoPower Supplies
Product Model

787-881

Manufacturer

wago

Category

Power Supplies

Product ID

41862

In Stock
Last updated: 2025/4/17
View Specifications
wago 787-881

Selling Points

  • 1Reliable Power Supply: Bridges short duration voltage drops and load fluctuations for an uninterrupted power supply.
  • 2Efficient Design: Features a buffer time of 0.17 to 16.5 seconds, depending on load current and switch-on threshold.
  • 3High Current Capacity: Supports up to 20 A output current, making it suitable for demanding applications.
  • 4Durable Construction: Built with CAGE CLAMP® technology and designed for DIN-35 rail mounting, ensuring secure and reliable operation.
  • 5Comprehensive Signaling: Includes LED indicators for DC OK, charge status, and fault conditions, along with an isolated relay contact for added functionality.
Product Details
787-881
wago

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Protection class
III
Protection type
IP20; per EN 60529
Reverse voltage protection
yes
Pollution degree
2
Parallel operation
Yes
Series operation
No
MTBF
typ. 87,600 h (at 25 °C); typ. 30,500 h (at 40 °C)
Connection type 1
Input/Output
Connection technology
CAGE CLAMP?
WAGO connector
WAGO 231 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
Connection type 2
Relay
Connection technology 2
CAGE CLAMP?
WAGO connector 2
WAGO 231 Series
Solid conductor 2
0.08 … 2.5?mm2?/ 28 … 12?AWG
Fine-stranded conductor 2
0.08 … 2.5?mm2?/ 28 … 12?AWG
Strip length 2
8 … 9?mm?/ 0.31 … 0.35?inches
Width
57?mm?/ 2.244?inches
Height
181?mm?/ 7.126?inches
Depth from upper-edge of DIN-rail
179?mm?/ 7.047?inches
Note (dimensions)
Height with connector
Mounting type
DIN-35 rail
Fire load
0.432MJ
Weight
1000g
Ambient temperature (operation)
-10 … +50 °C
Ambient temperature (storage)
-10 … +60 °C
Relative humidity
5 … 96?% (no condensation permissible)
Conformity marking
CE
Standards/specifications
EN 60950
Product Group
6 (INTERFACE ELECTRONIC)
eCl@ss 10.0
27-04-07-01
eCl@ss 9.0
27-04-07-01
ETIM 9.0
EC002540
ETIM 8.0
EC002540
ECCN
NO US CLASSIFICATION
PU (SPU)
1?pcs
Packaging type
box
Country of origin
DE
GTIN
4045454909826
Customs tariff number
8504904100
RoHS Compliance Status
Compliant,No Exemption
Nominal input voltage [V]
DC?24?V
Input voltage range
DC?20 … 30?V
Nominal mains frequency range
0?Hz
Input current I<sub>i</sub>
≤?0.06?A (No load);?≤?1?A (Charging);?≤?22?A
Nominal output voltage [V]
DC?24?V
Output voltage range
DC?24?V
Nominal output current I<sub>o nom</sub>
20?A
Current limitation
1.1 x Io nom(typ.)
Buffer time
0.17 … 16.5?s depends on load current and switch-on threshold
Switch-on threshold (adjustable)
DC?20 … 24?V
Charging time (typ.)
5min
Signaling
1 x LED DC OK (green)
Operation status indicator
Green LED (Uo> 20 V)
Power loss P<sub>l</sub>
≤?1.5?W;?≤?15?W (nominal load)

Specifications may be subject to change without notice