Modular surge protectors

Solera SPDs: comprehensive defence against voltage surges.

Permanent and transient modes: continuous monitoring plus lightning impulse diversion.
230 V & 400 V AC: 1P+N and 3P+N options.
DC protection: PV models up to 1 250 V.
COMBI units: MCB + surge protection in one module.
DIN-rail format: quick fit, easy maintenance.

Documentation

Videos

Ref. LSTP1/9

Permanent surge protection

Ref. LSTP3/9

Permanent surge protection

Ref. LST2

Transient surge protection. 230/400V AC (50 - 60 Hz).

Ref. COMBI2P25T15

Protector MCB 2x25A + surges permament. and transitory

Ref. COMBI2P40T15

Protector MCB 2x40A + surges permament. and transitory

Ref. LST4

Transient surge protection. 230/400V AC (50 - 60 Hz).

Ref. FV1250/3S

Transient surge protection. 230/400V DC (50 - 60 Hz).

Ref. FV600/2S

Transient surge protection. 230/400V DC (50 - 60 Hz).

Solera surge protectors – permanent and transient protection for AC and DC systems

Solera surge protection devices shield electrical installations from dangerous voltage spikes caused by lightning or switching events. The range includes permanent over/under-voltage guards that disconnect the load if mains levels drift, and transient surge arresters that shunt high-energy impulses to earth within microseconds.

Versions cover single-phase 230 V (1P+N) and three-phase 400 V (3P+N) networks, while FV series units protect DC strings up to 1 250 V in photovoltaic arrays. COMBI devices combine an MCB and surge protection, saving space and wiring time.

Permanent protection: automatic disconnect / manual reset.
Class II discharge level: residual voltage ≤ 1.5 kV.
Status window: clear green/red indication.
Volt-free contact: remote alarm to BMS/PLC.

Tested to IEC/EN 61643-11, Solera SPDs deliver long-term reliability and equipment safety across residential, commercial and industrial sectors.