3TH Contactor Relays

Description

3TH Series Contactor Relays are suitable for control circuits with frequency of 50/60Hz, rated AC voltage up to 660V and rated DC Voltage up to
600V. They can control all kinds of magnetic coils to amplify and transfer signals. They comply with IEC947, VDE0660, GB14048.

Operating Conditions

● The altitude of the site of installation does not exceed 2000 meters above sea levels.
● The ambient air temperature: -25 ~ +55°C.
● Relative humidity does not exceed 90% at +25°C.
● Atmospheric conditions: the air does not contain any explosive medium, corrosive gases and conductive dust.
● Never be shocked and vibrated obviously.
● Never be wetted by rain and snow.

Features

● The relays consist of core in the form of letter ìEî and a straight motion mechanism having a bridge double - breaking system. It operates reliably.
● 3TH40, 80 have 4 pairs of contacts to be arranged.
3TH42, 82 have 8 pairs of contacts to be arranged.
3TH30 can plug in auxiliary contacts (3TX4), and can be arranged freely.
● Designed compactly and sensitively, the relays are easy to handle and manually check. Impurities and dust can be prevented from coming into
moving parts of the relays. All terminals and other alive parts are covered with insulators to ensure safety use.
● The overall size of the relays and their installation area are small. They can be mounted by screws or snapped on 35mm top-hat, standard rail.
This will save much time and labour costs.
● Contact system has a bridge double - breaking structure. Because all contacts are made of silver alloy which provides excellent electrical
performance, they have advantages of long endurance and good contact reliability. The arc chute is enclosed and can prevent the arc from
spraying out by fire - resistant material to ensure personal and adjacent apparatusí safety.
● The magnetic system of the relays acts reliably with little loss and noise, but highest mechanical strength. A marked plate of voltage dated with
a given color according to different voltage levels is fixed at the terminal of the coil. This clear marked plate is helpful to connecting operation and
can prevent coil from burning out due to maloperation at false voltage values.