Tomzn TZG40-PV SPD DC 1200V Surge Protection Specifications
The Tomzn TZG40-PV SPD is engineered for DC systems operating up to 1200 volts, a voltage window that covers most residential and light commercial solar array configurations. Its 20KA to 40KA discharge rating handles transient surges from atmospheric lightning and switching events without degrading performance or requiring replacement after each event. The device mounts directly onto standard 35mm DIN rails, integrating seamlessly into your existing combiner box or disconnect assembly. Solar PV certified construction means the arrester meets IEC and UL standards specifically for photovoltaic applications, giving installers and electricians confidence that code inspections will pass. Durable terminal blocks accept wire gauges from 4mm to 16mm, accommodating both thin and heavy-gauge conductors without loose connections that invite arc faults.














a***r –
I liked more
m***o –
Very good product
E***r –
Not tested yet. The product seems of good quality.
Missing a notice or a diagram; I had to return to AliExpress to copy one.
P***n –
OK.
AliExpress Shopper –
Everything OK
m***o –
Very good product, it is working well, perfect DIN rail fit, product as described on site, recommend
J***A –
Good quality product, delivered in perfect condition and is already up and running