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The fire-resistant automatic phase switch PF-431 supports an input voltage of 3×400+N V and provides a stable output voltage of 230 V AC. The device features a maximum load current of 16 A, a short switching time in the range of 1.0÷1.5 s, and standard mounting on a TH-35 mm rail.
The fire-resistant automatic phase switch PF-431 by F&F is a device designed to maintain power continuity for single-phase loads. The input voltage is 3×400+N V, and the output voltage is maintained at the required level of 230 V AC. The module is mounted on a standard TH-35 mm rail, occupying a width of 3 modules in the switchboard, i.e., 52.5 mm. The use of screw terminals allows for a stable connection of wires with a cross-section of up to 4.0 mm² for solid and 2.5 mm² for stranded wire.
| Input voltage | 3×400+N V |
| Output voltage | 230 V AC |
| Maximum load current (AC-1) | 16 A |
| Minimum voltage value | 190 V |
| Maximum voltage value | 280 V |
| Measurement accuracy | ±1 % |
| Switching time | 1.0÷1.5 s |
| Max. power consumption | 1.6 W |
| Connection | screw terminals 4.0 solid / 2.5 stranded mm² |
| Operating temperature | -25÷40 °C |
| Dimensions | 3 modules (52.5) mm |
| Mounting method | on TH-35 mm rail |
| Protection class | IP20 |
| Warranty | 24 months |
| Weight | 0.25 kg |
| Length | 110 mm |
| Width | 52 mm |
| Height | 75 mm |
Fire-resistant automatic phase switch PF-431 — B2B wholesale prices for installers and contractors. Check availability and terms of cooperation: contact us.
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