Overview
ATL-957 short circuit isolators are used for the short circuit fault protection of buses. When a bus circuit is operating normally, the GL-957 short circuit isolator will not operate; when a short circuit fault occurs at a place at the output end of the short circuit isolator in the bus circuit (short-circuit current ＞200mA), the section suffering the short circuit fault will be cut off from the bus, thus ensuring the normal communication of the other sections of the bus. Upon elimination of the short circuit fault, the short circuit isolator can automatically bring the isolated section into the system again. A short circuit isolator will make it convenient to confirm the location suffering a short circuit fault. The short circuit isolator does not need coding nor occupies the address in the bus circuit.

Main technical parameters
1. Mode of operation: Nonpolar two-wire system
2. Quiescent current: ＜5.0mA
3. Operative current: ＞200mA
4. Operation indicator: Red (It is out in the normal monitoring status or remains lit in the operation status)
5. Operating environment: Temperature: －10℃～50℃; relative humidity: ≤95% (40℃±2℃, without condensation)
6. External dimensions: 86×86×40mm (with the base)
7. Weight: about 125g (with the base)

Appearance and dimensions

What can we do for you?
Angel Technologies Hongkong Ltd.( hereinafter referred to as ATL) dedicates to providing cost-effective quality fire alarm solutions and perfect service to overseas customers. Products include: Addressable fire alarm systems, Conventional fire alarm systems, domestic fire detect alarms and gas extinguishing system. They are widely used in families and over 100 kinds of public places, such as the hospital, schools, hotels, office buildings, dormitories, factories, restaurants, banks, warehouse, buses, railways, libraries, filling stations, etc.
You are welcome to be our overseas agents, and we support OEM&ODM.

Are we factory?
All products are produced in Shenzhen Convoys Fire Technology Limited（hereinafter referred to as CFT）, by which ATL is especially founded to support the oversea customers, CFT is in charge of production and the domestic trade. CFT & ATL belong to the same founder, so ATL provide the same price and service as the factory CFT.
We provide one-stop service for you, from R&D to after-sale service.

About CFT
CFT is located in Shenzhen China, focusing on fire alarm solutions since 2005, and already serviced for about 100 overseas customers. We R&D, produce, sell products and provide after-sale service ourselves. Our product has reached the international advanced level by the non-stop effort those years, there´s almost no miss -alarm and false-alarm, the rate of correct and timely alarm is 99.9%, and we are continuously developing new products to meet nowadays’ new needs, so that you can make your safety status under control, no matter anywhere, no matter when.

Any certification?
We have already got the certificates of ISO 9001:2008, CE, and ROHS. If any other requirements, we´d like meet you.

How to cooperate?
Apply for sample --- Sample approval --- Trial order --- Substantial order --- Orders reach some quantity -- Apply for agency --- Exclusive agency

Our vision
We hope all of us on the earth could be away from fire risk because of the protection of our secure products. We’d like to make great contributions to the safety of human life and property, let the world to be more beautiful and happier.