LIGHTNING-SURGE PROT T 1+2 (Citel DAC1-13S-31-275) 3P+N,Vac
Valid Article
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SC subscriptions: included in supply or field tools
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LIGHTNING-SURGE PROT T 1+2 (Citel DAC1-13S-31-275) 3P+N,Vac
Form
This SPD provides Type 1+2 protection for 230/400 V AC installations, using MOV technology for strong energy handling, no leakage current, and reliable protection in L/N and N/PE modes. Each phase uses a pluggable module with a mechanical indicator and remote signaling output.
nominal system voltage (network): 230/400 V AC (3-phase + N)
maximum continuous operating voltage (Uc): 275 V AC
voltage protection level (Up): 1.3 kV (L/N), 1.5 kV (N/PE)
short-circuit withstand (Isccr): 50 000 A
nominal discharge current (In): 20 kA (8/20 µs)
SPD type / class: type 1 + 2 (IEC 61643-11)
Imax: 50 kA per pole (8/20 µs)
Iimp: 12.5 kA per pole (10/350 µs), 50 kA N/PE
number of poles: 3-phase + Neutral (L1, L2, L3, N)
dimensions: 72 x 90 x 87.8 mm
weight: 0.567 kg
Per piece.
Fit
installation location: main AC distribution board / sub-distribution
recommended back-up fuse : max. 315 A gG
AC system compatibility: 230/400 V 3-phase + N -TT / TNS
mounting type: 35 mm DIN rail
IP protection: IP20
max wire size: 2.5…25 mm² (up to 35 mm² rigid)
Function
The surge protective device (SPD) protects AC electrical installations and connected equipment against transient overvoltages caused by lightning or switching events.
Using MOV technology, it diverts surge energy safely to ground without leakage current and ensures reliable operation for all AC phases and neutral.
It provides coordinated protection in L/N and N/PE modes to safeguard downstream circuits and sensitive loads.