Application:
The sensors can be widely used at those work sites which need overheat protection. When the sensors are fixed in those facilities that need overheat protection, they are able to keep the facilities from accidents and damages caused by overheating.
Features
The sensors are the special ones used for overheat alarm and protection. They are made from the advanced technology introduced from abroad. PTC temperature-controlled sensors are made of mini heat-variable resistors. They are of small size, endurance strength, good stability and excellent sensitiveness. All the technical criteria have reached the level of the same products in the world.
Usage
In operation, you may use one piece or several pieces connected in series, which can control the temperatures at different points and are good to reduce the cost.
Technical data
The controlled temperatures of the sensors range from TK60ºC to TK180ºCore. There is a 5ºC interval between the controlled-temperature TK according to the specification. We are able to make such sensors between one and six cores according to customers' requirements.
Size:
PTC Technical data | Single core PTC | Three Cores PTC in series | Unit |
Max working voltage | Umax | 25 | 25 | V |
Rated control temp. | Tk | 60~180 | 60~180 | ºC |
Tk tolerance | | ±5 | ±5 | ºC |
Tk repetition | T | ±0.5 | ±0.5 | ºC |
Normal Temp.resistance T=25ºC (U≤2.5V) | R25 | ≤100 | ≤300 | Ω |
PTC resistance (U≤2.5V) | Tk-5ºC | ≤550 | ≤1650 | Ω |
PTC resistance (U≤2.5V) | Tk+5ºC | ≥1330 | ≥4000 | Ω |
PTC resistance (U≤2.5V) | Tk+15ºC | ≥4 | ≥12 | KΩ |
Tk control time | TD | <5 | <5 | S |
Strength of electrical insulation | UIs | 2.5 | 2.5 | KV |
Max. permissible storage temp. | TLmax | 160 | 160 | ºC |
Min. permissible storage temp. | TLmin | -25 | -25 | ºC |
Colour of lead wire | Reference the colour code |
Weight | W+ | 2 | 3.5 | g |
Control temp & Colour code
Control Temp. Tk | 60 | 70 | 80 | 90 | 100 | 105 | 110 | 115 | 120 | 125 |
Colour of lead wire | White | White | White | Green | Red | Orchid | Brown | Orchid | Gray | Red |
Gray | Brown | White | Green | Red | Gray | Brown | Green | Gray | Green |
Control Temp. Tk | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 180 |
Colour of lead wire | Orchid | Red | White | White | Black | Orchid | Orchid | Orchid | White | White |
Orchid | Black | Orchid | Black | Black | Black | Red | Brown | Green | Red |
Indication of type
MZ6 120 D S 500 200 200 500
MZ6 M Sensitive component Z Positive temperature coefficient 6 Temperature-controlled type
120 Temperature of the temperature-controlled point (TK)
D D 3-core Z 2-core E 1-core V 4-core S 6-core
S K The length of customers' special lead-out wire S Standard length of lead-out wire
500 200 200 500 Standard length of lead-out wire
Note: The above examples of type are for the sensors which have 3 cores, the standard length of lead-out wire and the controlled-point of temperature is 120ºC
Hengxin Precision Electrical Equipment Co., Ltd., is a manufacturer of thermal protectors, air discharge temperature controllers, automatic electrical controls for household and simmilar use.
Located in the city of Foshan, our manufacturing facility covers 5, 000 square meters, where we employ an experienced team of over 200 staff members. Moreover, we utilize advanced production machinery including state-of-the-art bimetal pressed technology and high precision thermal treatment equipment. Accordingly, our annual revenue reaches USD4, 200, 000.
With strong experience and a strict quality control system, our thermal protectors are some of the best in the industry. As such, we can provide a wide range of product specifications and gladly accept custom orders.
Accordingly, we have received several quality system and safety certifications including UL, C-UL, VDE and CQC certifications. As a result, our products have gained a strong reputation for reliability throughout many international markets.