Monitoring Relays for Generators and ATS Systems
How phase-sequence, voltage/frequency and temperature monitoring relays let an ATS safely transfer a load onto a standby generator and back.
The Schneider Electric TA63D3L6302TPE is a 3-pole TransferPacT automatic transfer switch rated 630 A at 230 V AC, built to change the source of supply between two AC networks without interrupting a standby or life-safety load. It carries a lcd screen on the front for local status and control, and it is intended for uninterrupted-duty changeover in industrial, commercial and healthcare installations within the 630 A frame.
The 3-pole TA63D3L6302TPE switches only the phase conductors, so the neutral stays solidly connected between the two sources; pick this execution where both the normal and the standby supply share a common neutral-to-earth bond. Its LCD controller displays source status, the active contact position and alarms locally and is operated from the front push-buttons, which is useful where staff need to read the changeover state without opening the panel. Within the 630 A frame, this 630 A setting shares its enclosure footprint with the other current ratings built on the same frame, so the panel cut-out does not change if a different rating from the same frame is specified instead. The 20 kA during 0.5 s | 25 kA during 0.1 s short-time withstand current lets it be installed directly downstream of an upstream breaker sized to that let-through level, without extra current-limiting fuses, and the AC-33B, AC-33A utilization category confirms it for uninterrupted-duty source changeover.
| Range of product | TransferPacT |
|---|---|
| Product or component type | Automatic transfer switch |
| Device application | Change source of supply |
| Poles description | 3P |
| Network type | AC |
| Network frequency | 50/60 Hz |
| Downside connection | Screwed |
| Mounting mode | Fixed |
| Upside connection | Screwed |
| Contact position indicator | Yes |
| [Icm] rated short-circuit making capacity | 40 kA switch-disconnector alone 230 V AC at 50 Hz, 330 kA with upstream protection circuit breaker 230 V AC at 50 Hz |
| Suitability for isolation | Yes |
| Transfer switch class | PC |
|---|---|
| Number of contact position | 3 |
| Signal contacts composition | 1 NO + 2 NC, 1 NC + 2 NO, 2 NO |
| Utilization category | AC-33B, AC-33A |
| [Ue] rated operational voltage | 230 V AC 50/60 Hz |
| Control type | 4 push-buttons |
| Operating mode | Manual, Automatic |
| Display type | LCD screen |
| Mounting support | Plate |
| Locking options description | Padlock in OFF position, Padlock in SI / SII position |
| Rated duty | Uninterrupted |
| [Ui] rated insulation voltage | Switch: 800 V, Controller: 500 V |
| [Uimp] rated impulse withstand voltage | Switch: 12 kV, Controller: 6 kV |
| [Ie] rated operational current | 630 A |
| Mechanical interlocking | With mechanical interlocking |
| Mechanical durability | 10000 cycles |
| Connection pitch | 45 mm |
| Local signalling | LED indicator (green) for power ON, LED indicator (red) for alarm |
| [Icw] rated short-time withstand current | 20 kA during 0.5 s, 25 kA during 0.1 s |
| Height | 341 mm |
| Width | 467 mm |
| Depth | 185.8 mm |
| Net weight | 20.8 kg |
| [Ith] conventional free air thermal current | 630 A at 60 °C |
| Standards | IEC 60947-6-1 |
|---|---|
| Product certifications | CE, CB, CCC |
| IP degree of protection | Front face: IP40 auto mode, Inside the enclosure: IP20 manual mode |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -40…85 °C |
| Pollution degree | 3 |
| Part number | TA63D3L6302TPE |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Warranty (in months) | 18 |
|---|
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 73.000 cm |
| Package 1 Width | 60.000 cm |
| Package 1 Length | 80.000 cm |
| Package 1 Weight | 35.900 kg |
| Shipping weight | 20.8 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of TA63D3L6302TPE is 630 A.
The rated operational voltage of TA63D3L6302TPE is 230 V AC.
The tariff (HS) code on file for TA63D3L6302TPE is 853650.
TA63D3L6302TPE ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
How phase-sequence, voltage/frequency and temperature monitoring relays let an ATS safely transfer a load onto a standby generator and back.