| Type |
AC surge protector |
| Manufacturer / Model |
Noark / Ex9UE1+2 12.5 3PN 275 |
| Applied AC surge protective device (SPD) |
Noark Ex9UE1+2 12.5 3PN 275 |
| AC surge protector | Type |
T1/T2 |
| Overcurrent circuit breaker |
Noark B20A 3F |
| Model |
PHS 12 T |
| Number of ways |
12 |
| Enclosure dimensions without glands and MC4 (L|W|H) (mm) |
144.00 | 319.00 | 259.00 |
| Complies with |
EN 60670-1, EN 62208 |
| Ingress protection |
IP65 |
| Protection class |
II |
| Rated insulation voltage U₁ (V) |
400 V AC, 1500 V DC |
| Glow-wire test (°C) |
650°C |
| Impact resistance |
IK08 |
| UV resistant |
Yes |
| Plastic |
Halogen-free |
| Operating temperature (°C) |
-25°C to +60°C |
| Manufacturer / Model |
Noark / Ex9BN 3P B20 |
| Rated current (A) |
20 A; 3-pole |
| Applied overcurrent breaker (MCB) (1) |
Noark Ex9BN 3P B20 |
| Rated operational voltage Ue (V) |
230/415 V AC |
| Rated operational voltage Ue (V) |
72 V DC per pole (1P, 2P) |
| Rated operational voltage Ue (V) |
48 V DC per pole (3P, 4P) |
| Minimum voltage (V) |
12 V AC/DC |
| Rated impulse withstand voltage Uimp (kV) |
6 kV |
| Rated impulse withstand voltage Uimp (kV) |
6 kV |
| Rated short-circuit making capacity Icn (kA) |
6 kA |
| Rated short-circuit making capacity Icn (kA) |
10 kA |
| Rated insulation voltage U₁ (V) |
690 V AC |
| Number of poles |
3 |
| Frequency (Hz) |
50/60 Hz |
| Characteristic |
B |
| Complies with |
IEC/EN 60898-1, IEC/EN 60947-2 |
| Mechanical endurance (operations) |
20 000 |
| Electrical endurance (operations) |
10 000 |
| Energy limitation class |
3 |
| Utilization category |
A |
| Supply direction |
Any (top or bottom) |
| Connection |
L-N/PE |
| Connection |
N-PE |
| Complies with |
EN 61643-11 |
| Type of SPD |
Type 1+2 (class I+II, B+C, T1+T2) |
| Internal components |
MOV (varistor), GDT (gas discharge tube) |
| Nominal voltage Un (V) |
275 V AC |
| Reference test current UREF (kA) |
25 kA per pole |
| Continuous operating voltage Uc (V) |
230 V AC |
| Continuous operating voltage Uc (V) |
255 V AC |
| Continuous operating voltage Uc (V) |
255 V AC |
| Frequency f |
50 kA per pole |
| Specific energy W/R |
156.25 kJ/Q |
| Maximum impulse current limp (10/350 μs) (kA) |
12.5 kA per pole |
| Maximum discharge current Imax (8/20 μs) (kA) |
50 kA per pole |
| Voltage protection level Up for current In (kV) |
1.5 kV |
| Voltage protection level Up for current Imax (kV) |
1.5 kV |
| Voltage protection level Up for 5 kA (8/20 µs) (kV) |
1.8 kV |
| N-PE follow current extinguishing capability Ifi (V) |
1.5 kV |
| Response time (ns) |
≤ 25 ns |
| Response time (ns) |
≤ 100 ns |
| Maximum backup fuse (A) |
160 A gG |
| Short-circuit current withstand capability (kA) |
50 kA |
| Short-circuit withstand IsCCR (kA) |
10 kA |
| Current coefficient k |
1 kA |
| LV system type |
TN-S, TT (3+1) |