Automatic Transfer Switch

EATS-W8 Dual Power Automatic Transfer Switch

The EATS-W8 Dual Power Automatic Transfer Switch ensures uninterrupted power supply for critical applications like fire pumps and elevators. This compact, all-in-one unit features a built-in controller for simple structure, fast switching, and low failure rates. It operates reliably in temperatures from -15°C to 60°C and is available in 2, 3, and 4-pole configurations. It automatically connects equipment to the stable mains power and instantly switches to the backup source during a failure, with a manual override option. Its front-terminal connection and easy maintenance make it a dependable choice.

Product Details

Product Descriprion

The EATS-W8 Dual Power Automatic Transfer Switch (ATS) is a highly integrated solution designed for critical power continuity in applications such as fire pumps, elevators, and essential industrial systems. Its standout feature is the built-in controller, which contributes to a compact size, a simple structure, and seamless ATS functionality. This integration ensures fast, reliable switching, a low failure rate, and straightforward maintenance.

Constructed for robust performance, the W8 operates effectively within an ambient temperature range of -15°C to +60°C and at installation altitudes up to 2000 meters. It offers versatile configurations with 2, 3, and 4-pole options and various current specifications to meet different load demands. The switch features front-terminal connections for easier installation. In Automatic Mode, it continuously monitors the mains power (normal power); when it's stable (within 180-240V), the load is connected to the mains, and it instantly transfers to the backup generator power upon detecting a failure or instability. A dedicated Manual Mode allows for operational flexibility and safe maintenance procedures. The clear panel display indicates power status (I, 0, II), and comprehensive wiring guidance is provided. Backed by a reliable quality management system and a clear warranty, the GATS-W8 delivers peace of mind for ensuring uninterrupted power.

Overview

① Control Device:Built-in controllers;

② Product Structure:Small Size,High current,

③ Simple Structure,ATS Integration;

④ Features:Fast Switching and Low Failure Rate,

⑤ Easy Maintenance and Reliable Performance;

⑥ Connection Mode:Front Terminals;

⑦ Conversion Mode:Power to Grids,Power to Generators, Automatic Switch Resettable;

⑧ Shell: 63;

⑨ Current:10,16,20,25,32,40,50 and 63A;

⑩ Product Category:Circuit Breaker;

⑪ Product Number:2-pole,3-pole and 4-pole;

⑫ ATSE:CB Level,with overload and short circuit protection;

Working Conditions

⑴ The ambient temperature range:-15℃to+60℃,and the 24-hour average temperature less than+35℃

⑵ Atmospheric humidity Month maximum relative humidity 90%,able to withstand sea effects of moist air at lower temperatures.To allow a higher relative humidity and condensation temperature variation occasionally produced special measures should be taken.

⑶ Installation altitude:≤2000M

⑷ The contamination level:installation site's pollution rating of Installation category:Class IV

Model and Explanation

EATS	W	8	—	□	□	□	□
Product name						Poles number	Rated current
Automatic transfer switch	CB Class	Design Code	X(Fire Type),F(Power Type) and Basic-no Mark	Circuit Breaker Frame Current		2P 4P	10,16,20,25,32,40,50 and 63A

Application

EATS-W8 Dual Power Automatic Transfer Switch(ATS for short)applies to the terminal double-loop power supply system that 50Hz/60Hz, rated operating voltage 220V(2P).380V(3P and 4P,rated current 10-63A.It can automatically switch the normal power to reserved power to prove the reliability of power supply,mainly used for fire pumps.smoke fans,elevators,pumps,lighting in high-rise buildings,shopping malls and other places.

Basic Structure

Our dual power automatic transfer switch includes power conversion circuit breakers (one piece each of KI normal power implementation circuit breaker and K2 reserved power implementation circuit breaker),control box,electric devices and other components.Circuit breaker Kl and K2 both have the over-current protection and circuit breaker protection function,can be used for switching and protecting the main circuit a the same time.

Features Overview

Automatic Principles:
1. When power is stabilized,(180~240V'this switch automatically connected the device to the normal power.
2. When power is not stabilized(no power or losing phase),the switch immediately cut of the power and then connect to the reserved power.

Manual Principles:
Press the manual control button,you can manually cut off the mains supply circuit,connected to power Lines and electricity lines.Also it can be manually switched on the mains lines and power lines.Also it can cut off the normal power and reversed power( generating from the generator)to cut both power supply to maintain the electricity lines with no lad.

Panel Display & Operation

Size:mm

Model

Size

63/2P

186

158

125

114

111

63/4P

258

230

125

114

111

Wiring Instructions

1, 101:3-pole normal power zero line terminal and the external indicating zero line

2, LP1:The normal power indicator

3, LP2:The normal power closing indicator

4, LP3:The reserved power indicator

5, LP4:Reserved power closing indicator

6, 201:3-pole reversed power zero line terminal and the external indicating zero line

Operation

Whatever there have power or not,normal power supply or reserved power supply can be manually operated.

When manual operating,manual-auto button should be placed on manual,when you push the handle clockwise to the end,circuit breaker K1 normal power supply switch closing,and reserved power supplies implement circuit breaker K2 opening.When pushing the handle counter clockwise to the terminal normal power circuit breaker K1 opening,and reserved power supplies circuit breakerk2 closing.On control panel displays,if the normal power indicator (UN)or the reserved power indicator(UR)do not light on,means that automatic controller power supply is faulty,cannot work normally.Only can be used again after repaired.

Put manual-auto button on auto position.if normal power stabilized,switch will automatically change into normal power circuit breaker device QN closing state,the normal closing indicator(UNON)on the Pane will light on;when normal power exception,the switch changes to reserved power circuit breaker device QR closing state,the reserved closing indicator(URON)on the Panel will light on.

Normal Fault Phenomenon and Clearing

When the switch does not convert properly,please check the problem as following form. If the problem go on,please contact our us or our local agent.

Fault Phenomenon	Fault Checking	Fault Clearing
The indicator of the controller not lighting	Whether the power sampling line is tripping	Connect the corresponding line correctly
The indicator of the controller not lighting	Whether 3 pole switch the neutral line isn't connected	Connect the corresponding line correctly
The controller works but can't switch automatically	Whether the switch on position AUTO or not	Put the switch on auto position
Input power OK Switch closing but	Tripping or not	Close after the fault clearing