User's Manual

StreetNode™ 6250 PTP
Installation & Cabling Manual - Edition 2.1
31
Site Prerequisites, Continued
Internal ovp
(2)
AC Mains Line (StreetNode
TM
6250 PTP)
AC power supply module
Input Overvoltage Protection:
• Live – Neutral: 1 kV – 1.2/50 μs (8/20 μs)
• Live – Earth: 2 kV – 1.2/50 μs (8/20 μs)
• Neutral – Earth: 2 kV – 1.2/50 μs (8/20 μs)
Input Overcurrent Protection:
• Double-pole fused through 2 A time-lag fuses (potted, nonreplaceable).
Connection to the Power Source:
The AC power supply cable should be protected with single-pole MCB of 6 A
/ 230 V AC rating, suitable for industrial applications (C-curve).
DC power supply module
Input Overvoltage Protection:
• 500 V – 1.2/50 μs (8/20 μs), negative pulses at negative (-) pole, positive
(+) pole connected to ground.
Input Overcurrent Protection:
• Double-pole fused through 3.5 A time-lag fuses.
Connection to the Power Source:
The DC power supply cable should be protected with single-pole MCB of 6 A
/ 72 V DC (minimum) rating, suitable for industrial applications (C-curve).
Outdoor signal line:
1 kV 1.2/50 μs (8/20 μs), shield-to-ground
In case additional protection against lightning is required please refer to
Lightning & Surge protection on page 30
Continued on next page
(2)
Overvoltage.