3P Transfer Switch ATS 100A Tongou TOWTS-100
Modelo: TOWTS-100 3P ATS 100A- Sku: TONGPRO012
- Vendor: Tongou
Specifications
Product Description
The 3P ATS 100A Tongou TOWTS-100 Transfer Switch ensures service continuity in three-phase 400 V installations, with automatic or manual switching between two sources (grid/generator, grid/inverter, dual supply). Its 220–230 V control electronics manage fault detection and execute the change in less than 50 ms, maintaining safety thanks to interlocks, status signaling, and AC-33B utilization category for loads with motors and high inrush current.
Main Features
- 3 poles, 100 A, 380–415 V AC; Auto/Manual selector with test control.
- Transfer time < 50 ms (forward and return) and off-time ≤ 50 ms.
- AC-33B category for inductive loads, HVAC, pumps, and drives.
- Control circuit at 50 Hz with control voltage AC 220–230 V (110 V option).
- Conditional capacity 50 kA with RT16-00-63A limiting fuse; Uimp 8 kV.
Advantages or Benefits
- Energy continuity: minimizes service interruptions in sensitive processes and equipment.
- Versatility: daily automatic operation and manual for maintenance/verification.
- Simple integration: compact dimensions (125 mm length), ideal for PZ30 and modular panels.
- Reliability: electrical life ≥ 2000 operations and mechanical ≥ 5000, suitable for intensive use.
- Enhanced safety: auxiliary contacts and interface for generator start signal.
Purpose or Applications
Designed for three-phase systems requiring ATS 3P 100A: parking lots with chargers, pumping, HVAC, catering, telecom, small business, and self-consumption in AC with backup generator.
Technical Specifications
| Model | Tongou TOWTS-100 (3P) |
| Poles / Voltage | 3P / 380–415 V AC |
| Rated current | 100 A (series 16…100 A) |
| Utilization category | AC-33B |
| Switching | Automatic / Manual |
| Transfer time | < 50 ms (operation and return) | Off-time ≤ 50 ms |
| Control voltage | AC 220–230 V (option AC 110 V) |
| Frequency | 50/60 Hz (control 50 Hz) |
| Ui / Uimp | 690 V / 8 kV |
| Conditional Icc | 50 kA (with SCPD RT16-00-63A) |
| Service life | Electrical ≥ 2000 ops · Mechanical ≥ 5000 ops |
| Operating temperature | −5…+40 °C (≤ 35 °C average 24 h) |
| Altitude / Pollution | ≤ 2000 m / Level 3 |
| Dimensions (H×W×D) | ≈104 × 125 × 78.5 mm |
| Mounting | PZ30 box / DIN rail |
Compatibilities
To be complemented with suitable main circuit breakers, SPD type 2 in AC, watertight panels (Schneider Kaedra), Sofamel terminal/lug sets, and generator start signal via C-NC contact. For PV systems in AC, properly configure priority and selectivity logic.
The 3P ATS 100A Tongou TOWTS-100 Transfer Switch combines speed, robustness, and compact format to guarantee your three-phase supply with professional safety.
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3P Transfer Switch ATS 100A Tongou TOWTS-100





