F410
F410
The Leach F410 is a hermetically sealed frequency sensing relay for 400 Hz three-phase power systems, with 2PDT or 4PDT contacts.
Contacts rated 10 A at 28 Vdc
2PDT or 4PDT contact arrangement
Senses 320 to 480 Hz, ±2% to ±10% accuracy
Input 90 to 124 Vac line to neutral, WYE
-55°C to +125°C, 20 g vibration, 50 g shock
39 x 39 x 60 mm case, 284 g max
Transients per MIL-STD-704A, category B
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Relay vs contactor vs SSR – which should you choose?Additional information
| Coil Voltage | 115 VAC |
|---|---|
| Function | Frequency |
| Max current | 10 A DC |
| Sector | Defence |
| Contact config | 4PDT, DPDT |
| IP Classification | Hermetic |
| Temperature range | -55°C ~ 125°C |
| Supply voltage | 90–124 VAC |
| Phase | 3-phase |
| Approvals | MIL-STD-704 |
| Dimensions | 39 x 39 x 60 mm |
| Weight | 284 g |
| Vibration | 20 G |
| Shock | 50 G |
| Response time | 50 ms |
| Accuracy | ±10%, ±2% |
| Measuring range | 320-480Hz |
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