---
product_id: 157247595
title: "4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch"
brand: "4pro"
price: "223770 Ft"
currency: HUF
in_stock: true
category: "4 Pro"
url: https://www.desertcart.hu/products/157247595-4pro-ats-125a-4p-rs-50-60hz-automatic-changeover-transfer
store_origin: HU
region: Hungary
---

# 125A high current rating Supports 1-3 phase, multi-voltage 1-2 sec ultra-fast switching 4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch

**Brand:** 4pro
**Price:** 223770 Ft
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your uptime with the 4PRO ATS-125A-4P-rs – where reliability meets speed!

## Quick Answers

- **What is this?** 4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch by 4pro
- **How much does it cost?** 223770 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/157247595-4pro-ats-125a-4p-rs-50-60hz-automatic-changeover-transfer)

## Best For

- 4pro enthusiasts

## Why This Product

- Trusted 4pro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Remote Control:** Generator start/stop outputs enable effortless remote management and automation.
- • **Rugged & Reliable Design:** IP54 protection, 10,000 life cycles, and high impulse withstand voltage for industrial-grade durability.
- • **Seamless Power Continuity:** Automatic & manual modes ensure zero downtime with lightning-fast 1-2 second transfer.
- • **Built-In Safety Interlocks:** Mechanical and electrical interlocking guarantees safe, fail-proof switching every time.
- • **Versatile Multi-Phase Compatibility:** Works flawlessly across 1 to 3 phase systems and multiple voltage standards for ultimate flexibility.

## Overview

The 4PRO ATS-125A-4P-rs is a robust automatic changeover transfer switch designed for seamless power source switching in 1-3 phase electrical systems. Rated for 125A and supporting multiple voltage configurations, it features ultra-fast 1-2 second switching, remote generator control, and built-in mechanical and electrical interlocks for maximum safety. With IP54 protection and up to 10,000 switching cycles, it delivers industrial-grade reliability and flexibility for critical power management.

## Description

DESCRIPTION The AT S-125A-rs changeover switch is designed to automatically transfer load circuits from main power source to reserve source in a wide variety of 1-3 phase applications. FEATURES - Electric motor gear activated switching; - 1-3 phase 4 pole operation; - Auto and Manual mode switch; - 3 position switch handle(”I”-”0”-”II”); - Generator start/stop remote control outputs; - High reliability and low power consumption due to fixed positions of the change-over mechanism energized during switching process only; - Front side position indication pointer and external lamp outputs; - Control signal protection fuses; - Built-in mechanical and electrical interlocking. INPUTS AND OUTPUTS - Normal source inputs: R, S, T, N; - Reserve source inputs: R, S, T, N; - Load cirquit outputs: R, S, T, N; - External indication lamp outputs. TECHNICAL SPECIFICATIONS - Rated Operating Voltage: 230/400V(2-3 phase), 230V (1 phase), 120/208V(3 phase), 120/240V (2 phase). - Voltage frequency: 50/60Hz. - Switching poles: 4 - Rated operating current: up to 125А per device pole; - Working temperature range: от -5'C до +40'C; - Humidity: up to 95%; - Installation type: vertical; - Switching current: up to 0.5A; - Switching time: 1-2 sec; - Rated insulation voltage: 800V - Rated impulse withstand voltage: 8kV - Rated making capability: 10KA - Rated short-time withstand currrent Ie 30ms:17KA - Nominal control supply voltage: 230VAC - Life switching cycles: up to 10000; - Use category: AC-331B; - Altitude: up to 2000 meters; - Protection class: IP30 - Weight: 2.2 kg.

## Features

- Generator remote start/stop outputs
- Suitable for 230V (1 phase), 230/400V(2-3 phase), 120/208V(3 phase), 120/240V (2 phase) 50/60Hz. source switching
- Automatic / Manual switching modes with an additional load disconnected position.
- External indicator connections. Built-in mechanical and electrical interlocking;

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WDBP765 |
| Actuator Type | Rotary |
| Brand Name | 4PRO |
| Circuit Type | 4-way |
| Connectivity Protocol | X-10 |
| Connector Type | Screw Terminals |
| Contact Material | Metal |
| Contact Type | Normally Open |
| Control Method | Remote |
| Current Rating | 125 Amps |
| International Protection Rating | IP54 |
| Item Dimensions | 8.82 x 4.8 x 3.27 inches |
| Item Weight | 2.5 Kilograms |
| Manufacturer | 4PRO |
| Material Type | Changeover |
| Mounting Type | Panel Mount, Surface Mount |
| Number of Items | 1 |
| Number of Positions | 3 |
| Operating Voltage | 240 Volts |
| Operation Mode | Automatic |
| Switch Type | Mechanical |
| UPC | 636601330712 |
| Unit Count | 1.0 Count |
| Wattage | 21450 watts |

## Product Details

- **Brand:** 4PRO
- **Circuit Type:** 4-way
- **Connector Type:** Screw Terminals
- **Contact Type:** Normally Open
- **Current Rating:** 125 Amps
- **Item dimensions L x W x H:** 8.82 x 4.8 x 3.27 inches
- **Material:** Changeover
- **Operating Voltage:** 240 Volts
- **Operation Mode:** Automatic
- **Switch Type:** Mechanical

## Images

![4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch - Image 1](https://m.media-amazon.com/images/I/819t3wqwgWL.jpg)
![4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch - Image 2](https://m.media-amazon.com/images/I/81h-hxJFcCL.jpg)
![4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch - Image 3](https://m.media-amazon.com/images/I/91vMIFxxpJL.jpg)
![4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch - Image 4](https://m.media-amazon.com/images/I/816JeI2ZCkL.jpg)
![4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch - Image 5](https://m.media-amazon.com/images/I/813kjhGPClL.jpg)

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- 4PRO ATS-125A-4P-rs, 50/60Hz Automatic Changeover Transfer Switch
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**Shop now:** [https://www.desertcart.hu/products/157247595-4pro-ats-125a-4p-rs-50-60hz-automatic-changeover-transfer](https://www.desertcart.hu/products/157247595-4pro-ats-125a-4p-rs-50-60hz-automatic-changeover-transfer)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-21*