1500V DC Type 2 PV Surge Protective Device | IEC/EN 61643-31:2018

Robust surge protection for modern 1500V PV strings.

Designed for utility-scale and commercial PV systems, this Type 2 DC SPD safeguards inverters, combiner boxes, and DC distribution against transient overvoltages on 1500V strings. Compliance with IEC/EN 61643-31:2018 ensures it meets the specific performance and safety criteria required for photovoltaic environments.

High-energy, serviceable protection modules.

The protection stage is built around three pluggable high-energy MOV cartridges, delivering reliable clamping of lightning-induced and switching surges. Pluggable construction simplifies maintenance—modules can be replaced quickly, helping minimize system downtime during scheduled service or after an end-of-life event.

Thermal safety with clear status feedback.

An integrated thermal disconnect isolates a stressed MOV at end-of-life and provides a visual fault indication, enabling fast on-site diagnosis. This helps maintain system availability and reduces the risk of unnoticed protection gaps.

Remote monitoring ready.

An optional remote signaling contact enables connection to plant SCADA, data loggers, or alarm relays, so operations teams can receive immediate alerts and plan proactive maintenance without constant local inspection.

Where it fits

PV string and array protection up to 1500V DC

Combiner/re-combiner boxes and DC distribution panels

Central and string inverter inputs in utility-scale and C&I plants

Key features at a glance

Type 2 DC SPD for 1500V solar PV applications

IEC/EN 61643-31:2018 compliant for photovoltaic systems

3 pluggable high-energy MOV protection modules

Thermal disconnect with clear fault indication

Optional remote signal contact for alarms/monitoring