TDP-1 · TDP-3 min/max voltage monitoring relays
TDP-1 1P · TDP-3 3P · 32–80 A
IEC 60947-1
TOSUNLUX (Tosun) modular digital overvoltage and undervoltage protectors: fast disconnection of the power supply in the event of overvoltage, undervoltage or phase loss, followed by time-delayed automatic reconnection when normal voltage returns. Front-panel voltage display. TDP-1 single-phase 220 V and TDP-3 three-phase 380 V, from 32 to 80 A.
TDP-1 · TDP-3 min/max voltage monitoring relays — TOSUNLUX Moroccofapelec.maReference selector
8 references| Compare | |||||
|---|---|---|---|---|---|
| 1P | 220 V~ | 32 A | 6.6 kVA | ||
| 1P | 220 V~ | 40 A | 8.8 kVA | ||
| 1P | 220 V~ | 63 A | 13 kVA | ||
| 1P | 220 V~ | 80 A | 17 kVA | ||
| 3P | 380 V~ | 32 A | 20 kVA | ||
| 3P | 380 V~ | 40 A | 25 kVA | ||
| 3P | 380 V~ | 63 A | 40 kVA | ||
| 3P | 380 V~ | 80 A | 52 kVA |
No references match these filters.
Maximum load power given by the manufacturer (resistive load). TDP-1: 220 V × In; TDP-3: √3 × 380 V × In, rounded down.
Also searched as: TDP-1 · TDP-3 · TDP1 · TDP3
Selection tables
Selection table
| 1P | 220 V~ | 32 | 6.6 kVA | |
| 1P | 220 V~ | 40 | 8.8 kVA | |
| 1P | 220 V~ | 63 | 13 kVA | |
| 1P | 220 V~ | 80 | 17 kVA | |
| 3P | 380 V~ | 32 | 20 kVA | |
| 3P | 380 V~ | 40 | 25 kVA | |
| 3P | 380 V~ | 63 | 40 kVA | |
| 3P | 380 V~ | 80 | 52 kVA |
Monitoring relay function matrix
| Function | TDP-1 · TDP-3 | TDP-2 | TDP-4 | JL-VP | TRV8 | TRL8 | TRT8 |
|---|---|---|---|---|---|---|---|
| Overvoltage | |||||||
| Undervoltage | |||||||
| Overcurrent | |||||||
| Phase sequence and phase loss | |||||||
| Phase imbalance | |||||||
| Liquid level | |||||||
| Output time delay | |||||||
| Automatic reconnection | |||||||
| Integrated power breaking | |||||||
| Output contact | |||||||
| DIN rail mounting |
● function provided.
Connection diagram
Installed after the service circuit breaker, at the head of the installation to be protected. TDP-3: 3P + N connection, the voltage of each phase is monitored with respect to neutral.
Selection guide — worked example
Villa with a single-phase 220 V connection, subscribed power 8 kVA. I = 8,000 / 220 = 36 A, hence TDP-1 40 A (max. load power 8.8 kVA). Recommended settings: overvoltage 250 V, undervoltage 180 V, automatic reconnection 180 s, the time needed for the air-conditioning compressors to equalise.
Technical characteristics
| Rated voltage | TDP-1: 220 V~ · TDP-3: 380 V~ |
|---|---|
| Currents in the FAPELEC catalogue | 32 · 40 · 63 · 80 A |
| Self-consumption | ≤ 3 W |
| Rated insulation voltage | 415 V (Ui) |
| Rated impulse withstand voltage | 2.5 kV (Uimp) |
| Conventional thermal current | 80 A (Ith) |
| Utilisation category | AC-12 |
| Overvoltage threshold | 230 – 300 V adjustable (TDP-1: 400 V temporary) |
| Overvoltage cut-off delay | 0.01 s |
| Undervoltage threshold | 120 – 210 V adjustable |
| Monitored quantity (TDP-3) | Phase-to-neutral voltage of each phase — 3P+N connection, neutral mandatory |
| Undervoltage cut-off delay | 0.1 s |
| Reconnection time delay | 10 – 600 s |
| Functions | Disconnection on overvoltage and undervoltage · time-delayed automatic reconnection1 |
| Accuracy | ± 2 %1 |
| Dimensions TDP-1 (w × h × d) | 52 × 84 × 75 mm |
|---|---|
| Dimensions TDP-3 (w × h × d) | 90 × 85 × 76 mm |
| Ambient temperature | −20 … +40 °C |
|---|---|
| Pollution degree | 3 |
| Degree of protection | IP201 |
| Product standard | IEC 60947-1 · IEC 60947-5-1 |
|---|
- 1 Value from an equivalent series, to be confirmed when ordering.
Documentation
- DatasheetRelais de contrôle min/max de tension TDP-1 · TDP-3FRPDF · 493 kBDownload
- Datasheetمرحلات مراقبة الجهد TDP-1 · TDP-3ARPDF · 369 kBDownload
- Certificate · CE attestation of conformityBureau Veritas LCIE · yy66As08BWQN64749A1 · EN IEC 60947-1:2021 · EN IEC 60947-5-1:2025ENWebP · 246 kBDownload
- Manufacturer certificateQuanpin Certification (CNAS · IAF) · ISO 9001:2015ENWebP · 236 kBDownload
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Frequently asked questions — TDP-1 · TDP-3 min/max voltage monitoring relays
Which TDP should I choose for a single-phase villa?
The TDP-1, single-phase 220 V. Example from the selection guide: a villa on 220 V with a subscribed power of 8 kVA, I = 8,000 / 220 = 36 A, hence a TDP-1 40 A (max. load power 8.8 kVA). The TDP-1 is available in 32, 40, 63 and 80 A.
What is the difference between the TDP-1 and the TDP-2?
Both disconnect the supply on overvoltage or undervoltage and reconnect automatically. The TDP-2 also monitors the current: it trips on overcurrent (setting from 1 A up to In), displays voltage and current, and has an output contact (1NO on the TDP-2-1, 3NO on the TDP-2-3). The TDP-1 is available from 32 to 80 A, the TDP-2-1 in 40 and 63 A.
Does the TDP reconnect by itself?
Yes. After tripping, it reconnects automatically once the voltage is back to normal, after an adjustable time delay of 10 to 600 s. The selection guide recommends 180 s where air-conditioning compressors are installed.
Which voltage thresholds can be set?
Overvoltage from 230 to 300 V (trips in 0.01 s) and undervoltage from 120 to 210 V (trips in 0.1 s). The TDP-3 monitors the phase-to-neutral voltage of each phase: 3P+N connection, neutral required.
Where is the TDP installed, and is it certified?
On a DIN rail, after the incoming supply circuit breaker, at the head of the installation to be protected. The TDP-1 and TDP-3 hold a CE attestation of conformity issued by Bureau Veritas LCIE (EN IEC 60947-1 and EN IEC 60947-5-1).