ZOII Concealed Slot DC SPD | Solar Energy Storage

Poles: 1P/2P/3P

Voltage: 250V DC / 500V DC / 600V DC / 800V DC / 1000V DC / 1200V DC / 1500V DC

Nominal Discharge Current In: 20kA (34S specification)

Maximum Discharge Current Imax: 40kA (34S specification)

Optional current ratings: 20D (5kA/10kA), 25D (10kA/20kA), 34S (20kA/40kA)

Voltage Protection Level Up: ≤1.2kV~≤5.3kV (increases with voltage)

Protection Rating: IP20

Installation: 35mm DIN rail

Standards: CE

ZOII ZY2-L series concealed slot DC surge protective device adopts concealed slot separation design, the slot is hidden at the base edge, higher fitting degree, no exposed parts on appearance, more concise and beautiful overall. The product is plug-in modular structure, the module can be replaced separately for easy maintenance. Built-in thermal trip + DC arc suppression structure, effectively suppresses DC follow current, prevents fire, adopts standard MOV varistor chips, stable DC surge protection performance. All models are CE certified, fits standard 35mm DIN rail installation, available in 1P/2P/3P poles, 250V to 1500V DC voltage specifications, optional current ratings, positioned for high-end PV and energy storage scenarios, it is a quality choice for DC power distribution scenarios.

Q1: What is concealed slot design and what are its advantages?

A: The concealed slot design hides the connection slots at the edge of the base, creating a seamless appearance with no exposed parts. This design improves fitting accuracy, enhances dust protection, and gives distribution panels a cleaner, more professional look — ideal for high-end commercial and industrial projects where cabinet appearance matters.

Q2: How many color options are available for ZY2-L series?

A: The ZY2-L series offers 5 standard colors: white, orange-white, red, green, and full orange. Custom colors are available for large orders, allowing you to match your brand identity or project requirements.

Q3: Is the module replaceable without rewiring?

A: Yes. All ZY2-L series SPDs feature plug-in modular design. The module can be directly pulled out and replaced while the base remains mounted on the DIN rail — no rewiring needed, minimizing downtime.

Q4: What voltage ratings are available for ZY2-L DC?

A: ZY2-L DC series covers 7 voltage ratings from 250V to 1500V DC: 250V, 500V, 600V, 800V, 1000V, 1200V, and 1500V, making it suitable for photovoltaic systems, solar combiner boxes, energy storage systems, and EV charging stations.Please make sure to select the appropriate components according to your actual needs. Operating beyond the marked current and voltage ranges will render the product unusable.

Q5: Does ZY2-L DC have arc suppression for solar applications?

A: Yes. ZY2-L DC series includes a built-in thermal trip + DC arc suppression structure, which effectively suppresses DC follow current and prevents fire hazards — critical for PV and energy storage systems where DC arcs do not self-extinguish like AC arcs.