Page 38 - 1000V Product Range

SURGE PROTECTION

Surge Arrestor (Hitachi ABB)

Features:
In (8/20μsec) Nominal Discharge current High current impulse (4/10 μs) (I ) Part No.
hc
• Uc > 1000V a.c. r.m.s
10 kA (peak) 100 kA (peak) MVR1.8G10
(IEC 60099-4)
• Metal-oxide (MO) surge arrester
without spark gap
• Direct moulded PUR housing for
environmental robustness
• High quality and reliable,
maintenance free
• For alternating current (AC)
systems
• For indoor and outdoor
installations

Especially recommended for
overvoltage protection of:
• Motors
• Cable sheaths
• Further high voltage
apparatuses
Recommended Clearances Height
Continuous operating voltage Uc (kV )
rms
E (mm) F (mm) H (mm) K (mm)
1 65 125 106 86
1.8 65 125 125 105

MVR1.8G10

Electrical data

Continuous Residual voltage U at specified impulse current
Rated res
operating
voltage
voltage wave 1/…μs wave 8/20 μs wave 30/60 μs
Uc Ur 5 kA 10 kA 1 kA 2.5 kA 5 kA 10 kA 20 kA 125 A 250 A 500 A
kV kV kV kV kV kV kV kV kV kV kV kV
rms rms peak peak peak peak peak peak peak peak peak peak
1 1.25 4.2 4.9 3 3.2 3.4 3.5 4 2.7 2.7 2.8
1.8 2.25 6.9 7.8 5.3 5.6 5.9 6.2 7.1 4.7 4.8 5

38 | 1000V Products