Data Sheet

Data sheet | Item number:2787-2147
www.wago.com/2787-
2147
23.10.2019Page /3 8
Fuse protection:
Internal fuse T 10 A / 250 VAC
External fuse (required) an external DC fuse required for DC input voltage
External fuse (recommended) 16 A (for USA/Canada: 15 A)
Safety and protection:
Insulation voltage (PRI-SEC) DC 3.62kV
Isolation voltage (PRI-GND) DC 2.265kV
Insulation voltage (SEC-GND) DC 0.708kV
Insulation voltage (SEC-Signal) DC 0.708kV
Protection class I
Protection class IP20 (per EN 60529)
Feedback voltage ≤DC35V
Overvoltage category III (≤ 2000 m a. s.l.); II (> 2000 m a. s.l.)
Transient protection, primary Yes
Overvoltage protection, secondary Internal protective circuit
≤ 35 VDC (in case of an error)
Short circuit protection Yes
No-load proof Yes
Parallel operation Yes
Series connection Yes
MTBF > 800,000 h (per IEC 61709)
Connection data
Connection type (1) Input/Signaling
Connection technology
CAGE CLAMP
®
WAGO terminal WAGO 721 Series
Solid conductor 0.08 … 2.5mm²/ 28 … 12AWG
Fine-stranded conductor 0.08 … 2.5mm²/ 28 … 12AWG
Fine-stranded conductor with ferrule with plastic collar 0.25 … 1.5mm²/ 20 … 16AWG
Fine-stranded conductor with ferrule without plastic collar 0.25 … 2.5mm²/ 20 … 14AWG
Strip length 8 … 9mm/ 0.31 … 0.35inch
Connection type (2) Output
Connection technology 2
Push-in CAGE CLAMP
®
WAGO terminal 2 WAGO 831 Series
Solid conductor (2) 0.5 … 10mm²/ 20 … 8AWG
Fine-stranded conductor (2) 0.5 … 10mm²/ 20 … 8AWG
Fine-stranded conductor with insulated ferrule (2) 0.5 … 6mm²/
Fine-stranded conductor with uninsulated ferrule (2) 0.5 … 6mm²/
Strip length (2) 13 … 15mm/ 0.51 … 0.59inch