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Thermal couple terminal block

Thermal couple terminal blocks are specialized connection devices designed for thermocouple circuits in industrial temperature measurement systems. These blocks are engineered to maintain signal integrity by using materials that match the thermocouple alloy composition, such as type K, J, T, or E, minimizing thermal EMF errors. They typically fe...

Thermal couple terminal blocks are specialized connection devices designed for thermocouple circuits in industrial temperature measurement systems. These blocks are engineered to maintain signal integrity by using materials that match the thermocouple alloy composition, such as type K, J, T, or E, minimizing thermal EMF errors. They typically feature screw or spring clamp connections, rated for voltages up to 690V and currents up to 32A, with insulation resistance exceeding 1000 MΩ. The compact design allows for DIN rail mounting in control cabinets, ensuring reliable signal transmission in harsh environments.

These terminal blocks are essential in process industries like petrochemical, power generation, food processing, and HVAC systems, where precise temperature monitoring is critical. They are installed in junction boxes, marshalling panels, and distributed control system (DCS) racks, often paired with temperature transmitters or PLC input modules. Their use extends to furnace control, reactor monitoring, and exhaust gas temperature sensing.

Key subcategories include standard thermocouple terminal blocks, compensating cable blocks, and disconnect versions for testing. Common article codes follow patterns like TTB-2.5-K (for type K, 2.5mm²) or TTB-4-J (for type J, 4mm²), with variations for different wire gauges and thermocouple types. Accessories like end covers, marking tags, and partition plates are also available.

We offer express worldwide shipping and dedicated support from electrical engineers who can assist with thermocouple selection, wiring diagrams, and compliance with IEC 60584 standards. Our real-time pricing and technical documentation ensure you get the right components for your temperature measurement system.

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Manufacturer Code Reference Catalog Number Description Delivery Price

3100047

MTKD-FE/CUNI EX

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type J, nominal voltage: 400 V, nominal current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

Terminal blocks for thermocouples, TC type J, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm2 - 4 mm2, mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100060

MTKD-CU/CUNI EX

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type T, nominal voltage: 400 V, nominal current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100063

MTKD-NICR/NI EX

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, CT type K, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100076

MTKD-NICR/CUNI EX

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type E, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100102

MTKD-S-CU/E-CU EX

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type B, nominal voltage: 400 V, nominal current: 1 A, connection type: Screw connection, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100103

MTKD-NICRSI/NISI EX

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type N, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100046

MTKD-FE/CUNI

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type J, nominal voltage: 400 V, nominal current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

Terminal blocks for thermocouples, TC type J, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm2 - 4 mm2, mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100059

MTKD-CU/CUNI

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type T, nominal voltage: 400 V, nominal current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

Terminal blocks for thermocouples, TC type T, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm2 - 4 mm2, mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100062

MTKD-NICR/NI

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, CT type K, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100075

MTKD-NICR/CUNI

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type E, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100091

MTKD-E-CU/A-CU

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type R, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, 1st floor, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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3100101

MTKD-S-CU/E-CU

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Thermoelectric voltage terminal block pair

Terminal blocks for thermocouples, TC type B, rated voltage: 400 V, rated current: 1 A, number of connections: 4, number of poles: 2, connection type: Screw connection, cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: gray

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