Modular backup Automatic Power Switch for Generators | for Uninterruptible Power Supply | 4P | 63A | 230VAC

Technical Specifications

Product type: Automatic Transfer Switch (ATS)

Installation: Modular, DIN rail mounted

Maximum current: 63 A

Voltage: 220–230 V AC (L+N), 50–60 Hz

Insulation voltage: 690 V

Number of poles: 4P (phases + neutral)

Switching speed: <50 ms

Coil operating voltage range: 85–110% of rated voltage

Control modes: Automatic / Manual (selectable via switch)

Usage frequency: Infrequent (PC class)

Priority: Main (A) power is always used if available

Functions and Operation

Automatic transfer: When the main power source A fails, the switch transfers to backup source B (e.g., generator) in <50 ms.

Two-position control: "A" – main source, "B" – backup. Priority is always given to source A.

Manual mode: Manual switching possible when the selector is set to "Manual".

Voltage fluctuation protection: Operates properly only within 85–110% of rated coil voltage.

Applications

Residential homes – to avoid power interruptions

Industrial sites with critical infrastructure (heating, cooling, pump systems)

Server and network centers

Shops, restaurants, commercial premises

Generator and backup power systems

Pros

Fast switching (<50 ms): reduces equipment damage risk due to power loss

Convenient DIN rail mounting: quick and tidy integration in distribution boxes

Clear control logic: easy operation even for non-experienced users

4-pole solution: ensures complete line disconnection and safety

Universal voltage and current: suitable for residential and commercial use up to 63A

Cons / Warnings

Not suitable for frequent switching: PC class device not designed for regular load changes

Coil sensitive to voltage fluctuations: under- or overvoltage can damage the coil

No configurable priority logic: always prioritizes source A

Requires grounding and proper installation: incorrect wiring may pose safety risks