
DC Surge Protective Device Type 2 Phoenix Contact 2800642 VAL-MS 600DC-PV/2+V
The Phoenix Contact VAL-MS 600DC-PV/2+V surge protective device (article number 2800642) is a Type 2 (class II) surge limiter designed specifically for the direct current side of photovoltaic systems up to 800 V DC of continuous operating voltage. It is installed on a 35 mm DIN rail inside the DC combiner box, between the photovoltaic generator and the inverter, and protects the modules, the string cables and the inverter's MPPT input against surges induced by indirect lightning strikes and by switching operations.
The device uses the classic Y configuration (2+V) with three protection paths — L+ / L−, L+ / PE and L− / PE — built with varistors and a series spark gap, a solution that eliminates the leakage current to earth under normal conditions. It consists of a 3-position base with pluggable, thermally monitored protection elements: each cartridge carries an optical status indicator that shows when the element has reached its end of life and must be replaced, without having to dismantle the wiring. The failure behaviour is open circuit (Open-Circuit Mode).
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | 2800642 |
| Product type | Surge protective device (SPD) for photovoltaic systems |
| System side | Direct current (DC), between the PV generator and the inverter |
| Brand and model | Phoenix Contact VAL-MS 600DC-PV/2+V — item no. 2800642 |
| Surge protective device (type) | Type 2 / class II (PV II according to EN 50539-11) |
| Maximum continuous operating voltage Ucpv | 800 V DC |
| Nominal discharge current In (8/20 µs) | 15 kA |
| Maximum discharge current Imax (8/20 µs) | 40 kA |
| Protection level Up | ≤ 2,7 kV |
| Protection modes | 3 (L+ / L−, L+ / PE, L− / PE) — Y "2+V" configuration |
| Protective devices | 3 thermally monitored pluggable cartridges, with optical status indication on each module |
| Failure mode | Open circuit (Open-Circuit Mode, OCM) |
| Mounting | 35 mm DIN rail (3-position base) |
| Connection cross-section | From 1.5 to 35 mm² rigid (M5 screw terminals) |
| Protection rating | IP20 (with all terminals occupied) |
| Operating temperature | From −40 °C to +80 °C |
| Colour | Jet black RAL 9005 |
| Dimensions | 53.40 × 90.00 × 65.50 mm |
| Weight | 0.31 kg |
| Standards | EN 50539-11 |
Documentation
PDFDatasheet 2800642Official manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.