Niglon SA123-450 Surge protection device type 1/2/3 3P+N 50kA

The Niglon SA123-450 surge protection device is a Type 1 and 2 3 phase SPD.

In summary, a Type 1 SPD is used at the origin of the installation, a Type 2 SPD is used at distribution boards and a Type 3 SPD is used near terminal equipment. ) is lower than the impulse withstand capability of the equipment to be protected. 

SA123-450 Type 1+2+3 Surge Protection Device- Pluggable

Description Type 1 + 2 + 3 AC surge protector

Network 230/400 V 3-phase+N

Connection Mode L/N and N/PE

AC system TT/TNS

Max. AC Operating Voltage L-N 275 Vac

Temporary Over Voltage [TOV] Characteristics - 5 sec 180 Vac withstand

Temporary Over Voltage [TOV] Characteristics - 120m 230 Vac disconnection

Temporary Over Voltage N/PE [TOV HT] 1200 v/300A/200ms withstand

Residual Current Leakage Current at Uc None

Follow Current None 

Nominal discharge current 15 x 8/20 µs impulses 20kA

Max discharge current max. withstand @ 15 x 8/20µs by pole 50kA

Residual voltage @ In (8/20 µs) 0.6 kV

Protection level L/N @ In (8/20 µs) 1.25 kV

Protection level N/PE @ In (8/20 µs) 1.5 kV

Admissible short-circuit current 25000A

Thermal Disconnector Internal

Fuses Fuse type gG-125A

Installation ground fault breaker Type “S” or delayed

Connection to Network By screw terminals: 2.5-25 mm2

Mounting Symmetrical rail 35mm (EN60715)

Operating Temperature -40/+85˚C

Protection Rating IP20

Housing Material Thermoplastic UL94-V0

Standards of Compliance EN 61645-11, IEC 61643-11, UL1449ed.7

pliance EN 61645-11, IEC 61643-11, UL1449ed.7

Certification EAC CE