TA45 switch combined with thermal breaker in one housing not only saves place in your equipment, it offers much more.
This is an archive article published 09/12/2017. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.
On the first sight TA45 looks like a classic pushbutton or rocker switch. The switch turns on by pressing green button or switching cradle.
There are more options to turn it off:
• Manually – all versions.
• at overload, thermal protection – all versions.
• at undervoltage – versions with undervoltage protection.
• Remotely – versions with remote trip release.
The basic version of pushbutton (2P) or rocker (2R) switch is DPST (Double Pole Single Throw) switch and thermal breaker which responds to overloading of one or both contacts. By adding another contact, a three-pole switch with three SPST contacts (3P, 3R) is created, while the third contact is not protected.
Double pole and three pole switches can be extended by auxiliary single pole changeover (SPDT) switch (2PA, 2RA, 3PA, and 3RA), undervoltage protection/remote release/mechanical lock-out latch (2PU, 2RU, 3PU, 3RU) or both (2PAU, 2RAU, 3PAU, 3RAU). 3xxx versions are also available with illuminated button.
Mounting of TA45 switch is simple. Simply slide it inward into the precisely cutted out hole (snap-in mount) or fasten it from rear side with the AZZ05 cover (flange mount).
TA45 series also includes accessories such as covers for IP 54 or IP 65, rear cover, locking device, flat gaskets etc.
Before the use, be aware of the difference between TA45 and the circuit breaker. Almost all circuit breakers combine two release mechanisms: thermal (bi-metal) for long-lasting overload and electromagnetic for fast-response to short-circuit (multiple of rated current). The TA45 switches contain only thermal breaker so the short-circuit response is significantly slower.
Rated Voltage AC 240 V, DC 60V for 2xxx versions, AC 400V for 3xxx versions
Rated current range 0.05 - 20 A for 2xxx versions, AC 0.05 - 12 A for 3xxx versions
Typical endurance 50 000 switching cycles at rated AC or DC current
Overload: AC: min. 40trips at 6 x rated current, DC: min. 50trips at 4 x rated current
Quick connect terminal 6.3 x 0.8 mm or screw clamp terminal M3.5 x 6 mm (lineside P1, P2)
Ambient temperature range -10 to 55°C
Do not miss these articles
Do you like our articles? Do not miss any of them! You do not have to worry about anything, we will arrange delivery to you.
Date of publishing 09/12/2017. When you issue article on your website, please give its source: https://www.soselectronic.com/articles/schurter/schurter-ta45-one-switch-with-thermal-breaker-2900-variants-2040
Price was valid on when ordering pcs. If you want to know the current price and availability, request a price offer.
Do you agree with cookies being stored?
Welcome to the SOS electronic website. Before you enter our online world, we would like to ask you to allow us to store cookies on your browser. Your consent will help us view the site without error, measure its performance, and track additional statistics. Apart from that, we can bring you an offer of our products and services, literally tailor-made. We also provide cookies to third parties. However, you are definitely safe with us.