Thermocouple connectors are divided into two forms according to DIN EN 50212. Type A, commonly known as standard, is the larger one and is equipped with round pins. Type B, commonly known as miniature or mini, is equipped with flat pins. The number of pins is two or three.
The materials of the pins correspond to the composition of the corresponding compensation materials from DIN EN 60584-3.
| Thermocouple | Material / Alloy | |
|---|---|---|
| Positive wire | Negative Wire | |
| T | Copper | Copper-Nickel |
| J | Iron | Copper-Nickel |
| E | Nickel-chromium | Copper-nickel |
| K | Nickel-chromium | Nickel alloy |
| S | Copper | Copper alloy |
| R | Copper | Copper alloy |
| B | Copper | Copper |
| N | Nickel-chromium-silicon | Nickel-silicon |
Thermocouple connectors are available in 4 different versions:
Ecconomy
Inexpensive version with a body made of fiber-reinforced nylon and hollow pins for type A connectors. They are designed for a continuous load of 190°C. The connections are equipped with simple screws.
Standard
Version with body made of fiber-reinforced thermoplastic and solid pins for type A connectors. They are designed for a continuous load of 230°C. The connections are equipped with clamping plates for easy installation.
High temperature
Version with body made of fiber-reinforced thermoplastic and solid pins for type A connectors. They are designed for a continuous load of 350°C. The connections are equipped with clamping plates for easy installation.
Ceramic
Version with body made of ceramic/porcelain and solid pins for type A connectors. They are designed for a continuous load of 650°C. The connections are equipped with clamping plates for easy installation.
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