Phoenix Contact
DC Surge Arrester Type 1+2 Phoenix Contact 1099593 VAL-MS-T1/T2 1000DC-PV/2+V-FM with Contact
DC Surge Arrester Type 1+2 Phoenix Contact 1099593 VAL-MS-T1/T2 1000DC-PV/2+V-FM with Contact
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DC Surge Arrester Type 1+2 Phoenix Contact 1099593 VAL-MS-T1/T2 1000DC-PV/2+V-FM with Contact
The Phoenix Contact VAL-MS-T1/T2 1000DC-PV/2+V-FM/40 (article number 1099593) is a combined Type 1+2 arrester for the direct current side of photovoltaic systems up to 1170 V DC. It is to be used when the building is equipped with a lightning protection system (LPS) or when there is a risk of direct lightning current on the DC line: the device discharges both the current from a direct lightning strike (Iimp 5 kA, 10/350 µs wave) and the induced and switching surges (In 15 kA, 8/20 µs wave).
The structure uses a Y configuration (2+V) with three protection paths — L+ / L−, L+ / PE and L− / PE — on a three-position base with pluggable, thermally monitored cartridges and an optical status indicator on each module. The FM version adds a remote signalling contact that makes it possible to report the end of life of a protection element to the monitoring system or to the datalogger, a function that is particularly useful in unattended installations. Installation is on a 35 mm DIN rail in the DC combiner box, upstream of the inverter.
Key features
Combined Type 1+2 protectionA single device covers both the current from a direct lightning strike (10/350 µs) and the induced and switching surges (8/20 µs).
Suitable for strings up to 1170 V DCThe Ucpv of 1170 V DC makes it compatible with photovoltaic generators with a 1000 V DC system voltage.
Remote signalling contact (FM)The auxiliary contact reports the end of life of a protection element to a remote monitoring system, useful on unattended installations.
Three-path Y configurationThe L+/L−, L+/PE and L−/PE paths with a series spark gap cancel out the leakage current to earth in normal service.
Monitored pluggable cartridgesThe protection elements are plug-in replaceable without touching the wiring; every module has an optical status indicator.
DIN rail mounting3-position base for a 35 mm rail, screw terminals up to 35 mm² solid, IP20 rating with the terminals occupied.
Technical specifications
| Feature | Value |
|---|---|
| Product code | 1099593 |
| Product type | Combined lightning current and surge arrester for photovoltaic systems |
| System side | Direct current (DC), between the PV generator and the inverter |
| Brand and model | Phoenix Contact VAL-MS-T1/T2 1000DC-PV/2+V-FM/40 — item no. 1099593 |
| Surge protective device (type) | Type 1+2 (class I + II) |
| Maximum continuous operating voltage Ucpv | 1170 V DC |
| Lightning impulse current Iimp (10/350 µs) | 5 kA per mode |
| Nominal discharge current In (8/20 µs) | 15 kA |
| Maximum discharge current Imax (8/20 µs) | 40 kA |
| Protection level Up | ≤ 3,5 kV |
| Protection modes | 3 (L+ / L−, L+ / PE, L− / PE) — Y "2+V" configuration |
| Remote signalling | Yes, remote signalling contact (FM version) |
| Protective devices | 3 thermally monitored pluggable cartridges, with optical status indicator |
| Mounting | 35 mm DIN rail (3-position base) |
| Connection cross-section | Up to 35 mm² rigid / 25 mm² flexible (M5 screw terminals) |
| Protection rating | IP20 (with all terminals occupied) |
| Operating temperature | From −40 °C to +80 °C |
| Dimensions | 54.00 × 100.00 × 65.70 mm |
| Weight | 0.38 kg |
| Standards | EN 61643-31 / IEC 61643-31 |
Documentation
PDFDatasheet 1099593Official manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.