Type 2 SPD’s are designed to discharge the currents generated by indirect lightning strikes causing induced or conducted overvoltages on the power distribution network. They are characterized by an 8/20μs waveform (Imax). Higher is the Imax, more powerful they are. They are installed in the main distribution switchboard but also in sub-distribution board. They have a low residual voltage Up often compatible with the withstand voltage of the equipment to protect. If this is not the case or the cable length to the equipment is longer than 10m, another level of coordination with OVR T2-T3, OVR T3 will be needed.
Surge Arresters
OVR T2 1N 40-440 P TS QS Surge Protective Device
Nortécnica Ref:
EAN:
3660308524577
Description
Technical Information
Attributes
Mounting method
Other
With remote signalling contact
Yes
Número de condutores Sem aterramento
2
Construction size
2 modular spacing
Nível de proteção de tensão
1.5
Tensão máxima contínua AC
440
Corrente de descarga nominal 820
20
Tensão nominal CA
230
Tensão nominal DC
-
Category type 2
Yes
Nível de proteção L-N
1.25
Signalling at the device
Optical
Máxima tensão DC contínua
-
Degree of protection IP
IP20
Tensão fotovoltaica máx.
-
Nível de proteção de tensão N-PE
1.4
Integrated backup fuse
No
Secção do condutor rígido máx. monomulti filamento
25
Secção flexível do condutor máx. fio fino
16
System configuration DC
No
System configuration IT
No
System configuration TN
Yes
System configuration TN-C
No
System configuration TN-S
Yes
System configuration TT
Yes
System configuration other
No
System configuration TN-C-S
Yes
Corrente de choque de descarga máxima 820
20
Resistência a curto-circuito Isccr
100
Proteção de sobreintensidade máx. Ligação em paralelo fusível
125
Proteção de sobreintensidade máx. Ligação em série fusível
125
Integrated short-circuit protection
No
Proteção contra curto-circuitos seletiva integrada - por fusível gG
-
Leakage-current free
Yes
Brands
ABB
Descrição Longa
Type 2 SPD’s are designed to discharge the currents generated by
indirect lightning strikes causing induced or conducted
overvoltages on the power distribution network.
They are characterized by an 8/20μs waveform (Imax). Higher is
the Imax, more powerful they are.
They are installed in the main distribution switchboard but also in
sub-distribution board.
They have a low residual voltage Up often compatible with the
withstand voltage of the equipment to protect. If this is not the
case or the cable length to the equipment is longer than 10m,
another level of coordination with OVR T2-T3, OVR T3 will be
needed.