Backup automatic power switch for generators | uninterrupted power supply | 2P | 125A | 230V

Technical Specifications:

Rated current: 125A

Rated voltage: L+N 220~230V AC, 50–60 Hz

Insulation voltage: 690V

Number of poles: 2P (phase + neutral)

Switching time: <8 ms (automatic switching on power loss)

Control: Automatic / Manual

Mounting: 35 mm DIN rail

Enclosure type: Compact, PC plastic (heat and flame resistant)

Ambient temperature: -25 °C to +60 °C

Electrical lifespan: ≥ 10,000 cycles

Functions:

Automatic switching: When the main power supply fails, the load is automatically transferred to the backup (generator) source in less than 8ms.

Return function: Once the main grid is restored, the system automatically switches the load back.

Manual mode: Manual switching possible – useful for testing.

Status indicators (if integrated): Shows which source is active.

DIN rail mounting: Simple and quick installation into an electrical cabinet.

Two-pole connection: Suitable for single-phase systems (phase + neutral).

Applications:

Residential homes: Automatic power transfer between the grid and home generator – ideal for areas with frequent outages.

Commercial premises: Ensures business continuity for small enterprises, offices, or shops.

Industry: Suitable for small workshops where power stability is essential.

Telecom, IT server cabinets: Used with UPS or generators for data protection.

Pros:

Fast response (<8ms)

Automatic and manual control: Flexible for permanent or temporary use

High current capacity – 125A: Suitable for large loads (pumps, AC, ovens)

Easy DIN rail installation: Fits standard cabinets and saves time

Suitable for single-phase networks: Widely applicable in households and business

Cons:

No WiFi/remote control: Does not offer smart access or app control (unless integrated additionally)