4P Transfer Switch ATS 100A Tongou TOWTS-100
Modelo: TOWTS-100 4P ATS 100A- Sku: TONGPRO013
- Vendor: Tongou
Specifications
Product description
The Tongou TOWTS-100 4P ATS 100A Transfer Switch is an automatic dual power switch for three-phase networks with neutral (380–415 V). It detects failure in the main source and transfers the load to the backup source (generator set, auxiliary grid, inverter/UPS) quickly and safely, automatically returning when service is restored. With 100 A nominal, AC-33B utilization category, and 220–230 V control, it ensures supply continuity in critical residential, tertiary, and light industrial applications.
Main features
- Automatic or manual switching via front selector and mechanical control.
- 4 poles (3P+N), 100 A, voltage 380–415 V / 50 Hz; AC control 220–230 V (110 V option).
- Transfer time: operation and return < 50 ms; off time ≤ 50 ms.
- AC-33B category: suitable for motors, inductive loads, and inrush currents.
- Conditional short-circuit capacity 50 kA (with SCPD RT16-00-63A), Uimp 8 kV, Ui 690 V.
- Compact format for PZ30 boxes/DIN rail; A/B source indication and auxiliary contacts.
Advantages or benefits
- Energy continuity: prevents shutdowns and losses in sensitive equipment.
- Operational flexibility: Auto mode for daily service and Manual for testing or maintenance.
- Quick installation: compact dimensions, accessible terminals, and clear wiring diagram.
- Reliability: electrical life ≥ 2000 operations and mechanical life ≥ 5000 under normal conditions.
- Enhanced safety: generator start interface and option to add surge protection.
Purpose or applications
Switching between grid and generator, grid and inverter/UPS, or dual supply in parking lots with EV chargers, pumping, HVAC, telecom, technical rooms, and AC self-consumption. Ideal when ATS 4P 100 A with fast response is required.
Technical specifications
| Model | Tongou TOWTS-100 (4P) |
| Poles | 4P (3 phases + N) |
| Rated current | 100 A (series 16…100 A) |
| Service voltage (Ue) | 380–415 V AC · 50 Hz |
| Insulation voltage (Ui) | 690 V |
| Impulse withstand voltage (Uimp) | 8 kV |
| Utilization category | AC-33B |
| Switching mode | Automatic / Manual |
| Transfer time | < 50 ms (operation and return) · Off ≤ 50 ms |
| Control / Auxiliary | AC 220–230 V (AC 110 V option) · 50/60 Hz |
| Conditional Icc | 50 kA (with SCPD RT16-00-63A) |
| Service life | Electrical ≥ 2000 ops · Mechanical ≥ 5000 ops |
| Temperature / Altitude | −5…+40 °C (≤35 °C 24 h) · ≤ 2000 m |
| Pollution degree | Level 3 |
| Dimensions (H × W × D) | ≈104 × 142.5 × 78.5 mm |
| Weight | ≈0.81 kg |
| Mounting | PZ30 box / DIN rail |
Compatibilities
Upstream protections (MCB/limiting fuse), type 2 AC surge protection, modular watertight enclosures (e.g., Schneider Kaedra), copper ferrules and terminals for professional wiring. Includes terminals for generator start signal (C-NC contact) and auxiliary status contacts.
The Tongou TOWTS-100 4P ATS 100A Transfer Switch is the compact and robust solution to ensure service continuity in demanding three-phase systems.
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4P Transfer Switch ATS 100A Tongou TOWTS-100
