Datasheet

Data sheet | Item number:787-915
www.wago.com/787-915
16.07.2019Page /3 5
Energy storage
Switch-on threshold (adjustable) DC21.5 … 22.5V
Charging current 1 … 4A (adjustable in 1 A steps via DIP switch; Default setting: 2 A)
End-of-charge voltage DC26.4 … 29V (temperature controlled with NTC; without
temperature sensor: 27.2 VDC)
Recommended battery module Type: VRLA 24 V; 7 … 40 Ah
Signaling and communication
Signaling 1 x Power LED (green)
1 x UPS LED (yellow)
1 x Warning LED (red)
2 x isolated relay contact (max. 30 VDC; 1 A)
Operation status indicator LED green (operation)
LED yellow (buffer mode/charging)
LED red (warning)
Remote input to switch off buffer operation
Efficiency/Power losses:
Power loss P
v
≤4W (no load);≤22.5W (nominal load)
Efficiency 97% (rated operation);85% (charging)
Fuse protection:
Internal fuse T 6.3 A (charging circuit)
External fuse (recommended) T 50 A
Safety and protection:
Insulation voltage (connectors-housing) DC 0.5kV
Protection class III
Protection class IP20 (per EN 60529)
Reverse voltage protection yes
Parallel operation No
Series connection No
MTBF 600,000 h (40 °C; per SN 29500)
Connection data
Connection type (1) Input/Output
Connection technology
Push-in CAGE CLAMP
®
WAGO terminal WAGO 2636 Series
Solid conductor 0.75 … 16mm²/ 18 … 4AWG
Fine-stranded conductor 0.75 … 25mm²/ 18 … 4AWG