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Component terminal block

Component terminal blocks are essential modular devices used in electrical and industrial automation systems for secure and organized wire connections. These blocks, often referred to as terminal strips, connection terminals, or DIN-rail terminal blocks, are designed to accommodate various wire gauges and current ratings, typically ranging from ...

Component terminal blocks are essential modular devices used in electrical and industrial automation systems for secure and organized wire connections. These blocks, often referred to as terminal strips, connection terminals, or DIN-rail terminal blocks, are designed to accommodate various wire gauges and current ratings, typically ranging from 2.5 mm² to 35 mm² and up to 150 A. They feature screw, spring-cage, or push-in connection technologies, with voltage ratings up to 1000 V AC/DC. Key specifications include number of poles (e.g., 1P, 2P, 3P), mounting type (DIN rail or panel), and material composition (polyamide or ceramic for high-temperature environments). Accessories like end brackets, partition plates, and marking tags ensure system integrity and labeling.

Terminal blocks are deployed across diverse sectors including power distribution panels, control cabinets, building automation, renewable energy systems (solar and wind), and industrial machinery. They are critical in PLC and DCS systems for signal and power routing, as well as in railway and marine applications where vibration resistance is paramount. Their modular design allows for easy expansion and reconfiguration in switchgear and motor control centers.

Subcategories include feed-through terminal blocks, ground/earth terminal blocks, fuse terminal blocks, disconnect terminal blocks, and multi-level terminal blocks. Key article codes often follow patterns like TB-35-4 (35 mm², 4-pole feed-through) or TB-G-16 (16 mm² ground block). For example, the series TB-2.5-2P (2.5 mm², 2-pole) is common for signal wiring, while TB-95-1P handles high-current power connections. These codes typically denote cross-section, pole count, and function type.

Partnering with Electric Automation Network ensures access to real-time pricing, global express shipping, and technical support from specialized engineers. We provide detailed documentation per article, including datasheets and wiring diagrams, to streamline procurement and installation. Our multilingual portal simplifies international orders, reducing downtime with rapid delivery.

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Manufacturer Code Reference Catalog Number Description Delivery Price

8WH2020-5JF30

8WH2020-5JF30

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Two-tier terminals with illuminated indicator (15-30 V) with spring-loaded connection, Cross section: 0.08-2.5 mm2, Width: 5.2mm, Color: gray

Two-story terminal with LED (15 - 30v) spring connection, section: 0.08 - 2.5 mm2, width: 5.2 mm, color: gray ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Multiplo of Order 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WA1822-7EE00

8WA1822-7EE00

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Connector with printed-circuit board for components

Connector with printed circuit board for components. Cancelations and returns limited. Consult conditions.

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8WA1011-6EG20

8WA1011-6EG20

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Two-tier terminal thermoplast connection on both sides Diode terminal, 6.5 mm Sz. 4

Two-story terminal insulating thermal material, connection on both sides, diode terminal, 6.5mm size 4 (** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 10 Units ** ). Manufactured to customer specifications. Non-Cancelable Non-Returnable.

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8WA1011-6EG24

8WA1011-6EG24

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Two-tier terminal thermoplast connection on both sides Diode terminal, 6.5 mm Sz. 4

Two-story terminal insulating thermal material, connection on both sides, diode terminal, 6.5mm, size 4 (** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 10 Units ** ). Manufactured to customer specifications. Non-Cancelable Non-Returnable.

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8WA1011-6EG22

8WA1011-6EG22

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Two-tier terminal thermoplast connection on both sides Diode terminal, 6.5 mm Sz. 4

Two-story terminal insulating thermal material, connection on both sides, diode terminal, 6.5mm size 4 (** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 10 Units ** ). Manufactured to customer specifications. Non-Cancelable Non-Returnable.

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2775250

UDK 4-DUR 499

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Component terminal block

1-level terminal block with double connection on both sides, with inserted resistance of 499 Ω, ± 0.1%, 0.5W, TCR ± 10 ppm/K, cross-section: 0.2 - 2.5 mm², width: 6.2 mm, colour: grey

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3215041

PTTB 2,5-2DIO/O-UR/UL-UR

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Component terminal block

Component terminal block, with integrated diode 1N4007, nominal voltage: 500 V, nominal current: 0.5 A, number of connections: 4, connection type: Push-in connection, 1st and 2nd floor, Dimensioning cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, colour: grey

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3046672

UTTB 2,5-2R BU/NAMUR

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Component terminal block

Terminal block for components, connection type: Screw connection, Sizing cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², Mounting class: NS 35/7.5, NS 35/15, color: blue

Component terminal block, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.14 mm2 - 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: blue

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3215042

PTTB 2,5-ILA 100

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Double-level terminal block

Double-level terminal block, nominal voltage: 500 V, nominal current: 0.1 A, 1st and 2nd floor, connection type: Push-in connection, Dimensioning cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, colour: grey

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8WA1011-6EG44

8WA1011-6EG44

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Zener diode terminal, 6.5mm, Sz. 4

Zener diode terminal, 6.5mm, size 4 ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 10 Units ** ). Cancelations and returns limited. Consult conditions.

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8WH2020-5KF00

8WH2020-5KF00

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Two-tier diode terminal Passage from top to bottom/left, from bottom/right to bottom Left with spring-loaded connection, Cross section: 0.08-2.5 mm2, Width: 5.2mm, Color: gray

Two-story terminal with spring connection diodes, polarity from top to bottom-left, polarity from bottom-right to bottom-left, section: 0.08 - 2.5 mm2, width: 5.2 mm, color: gray ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Multipurpose Order 50 Units ** ). Manufactured to customer specifications. Non-Cancelable Non-Returnable.

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3035519

STTB 2,5-BE

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Double-level spring-cage terminal block

Double-deck spring terminal block, for mounting self-selecting components, nominal voltage: 500 V, nominal current: 22 A, 1st and 2nd floor, connection type: Spring connection, Dimensioning cross-section: 2.5 mm², cross-section: 0.08 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, colour: grey

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3046237

UT 4-MTD-BE

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Component terminal block

Terminal block for components, for the assembly of self-selecting components, nominal voltage: 800 V, nominal current: 0.5 A, number of connections: 2, connection type: Screw connection, Sizing cross-section: 1 mm², cross-section: 0.14 mm² - 6 mm², mounting class: NS 35/7.5, NS 35/15, color: gray

Component terminal block, for installation of self-selectable components, Nominal voltage: 800 V, Nominal current: 0.5 A, Number of connections: 2, Connection type: Screw connection, Rated cross-section: 1 mm2, Cross-section: 0.14 mm2 - 6 mm2, Mounting type: NS 35/7.5, NS 35/15, Colour: grey

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2791142

UKK 5-2DIO/UL-O/UL-UR

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Component terminal block

Terminal block for components, with integrated diode, nominal voltage: 500 V, nominal current: 0.5 A, number of connections: 4, connection type: Screw connection, 1st and 2nd floor, Dimensioning cross-section: 4 mm², cross-section: 0.2 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, colour: grey

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3046671

UTTB 2,5-2R/NAMUR

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Component terminal block

Terminal block for components, connection type: Screw connection, Sizing cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting type: NS 35/7.5, NS 35/15, colour: grey

Component terminal block, connection method: Screw connection, Rated cross section: 2.5 mm2, cross section: 0.14 mm2 - 4 mm2, mounting type: NS 35/7,5, NS 35/15, color: gray

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3211432

PTTB 2,5-2R BU/NAMUR

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Component terminal block

Component terminal, connection type: Push-in connection, 1st and 2nd floor, Sizing section: 2.5 mm², section: 0.14 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, colour: blue

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2776032

UDK 4-DUR 5K1

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Component terminal block

1-level terminal block with double connection on both sides, with integrated resistance of 5.1 kΩ, ± 0.1 %, 0.6 W, cross-section: 0.2 ... 2.5 mm², width: 6.2 mm, colour: grey

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3211444

PTTB 2,5-2DIO/O-UL/O-UR BK

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Component terminal block

Terminal block for components, with integrated diode 1N4007, nominal voltage: 500 V, nominal current: 0.5 A, number of connections: 4, connection type: Push-in connection, 1st and 2nd floor, Dimensioning section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, color: black

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3035686

PTME 6-DIO BY255/L-R

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Component terminal block

Terminal block for components, If several diode terminals are aligned on the symmetrical rail, a spacer plate must be placed in the middle., with integrated diode BY255, nominal voltage: 1000 V, nominal current: 1.3 A, connection type: Push-in connection, 1st floor, Dimensioning section: 6 mm², section: 0.5 mm² - 10 mm², color: gray

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3210271

PT 2,5-QUATTRO-DIO/L-R OG

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Component terminal block

Terminal block for components, with integrated diode 1N4007, nominal voltage: 800 V, nominal current: 0.5 A, number of connections: 4, connection type: Push-in connection, 1st floor, Dimensioning cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting type: NS 35/7.5, NS 35/15, colour: orange

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3036043

ST 2,5-3L-DIO/M-O

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Multi-level terminal block

Multi-floor terminal block, with 1N4007 diode, nominal voltage: 500 V, nominal current: 20 A, number of connections: 6, connection type: Spring connection, 1., 2. and 3rd floor, Dimensioning section: 2.5 mm², cross-section: 0.08 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, color: gray

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3046359

UT 4-MTD-DIO/R-L-P/P

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Component terminal block

Component terminal block, with threaded sockets for test sockets to accommodate test pins, nominal voltage: 800 V, nominal current: 0.5 A, number of connections: 2, connection type: Screw connection, Dimensioning cross-section: 1 mm², cross-section: 0.14 mm² - 6 mm², mounting class: NS 35/7.5, NS 35/15, colour: grey

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3046809

UTTB 4-DIO/O-U

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Component terminal block

Terminal block for components, with integrated diode 1N4007, nominal voltage: 800 V, nominal current: 0.5 A, connection type: Screw connection, Dimensioning cross-section: 4 mm², cross-section: 0.14 mm² - 6 mm², mounting class: NS 35/7.5, NS 35/15, colour: grey

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3245969

PTTBS 2,5-LA 24 RD

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Component terminal block

Terminal block for components, nominal voltage: 24 V, nominal current: 22 A, connection type: Push-in connection, 1st floor, Dimensioning cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, colour: grey

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3002216

ST 2,5-QUATTRO-DIO 1N 5408K/L-R

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Component terminal block

Terminal block for components, with 1N 5408K diode installed, nominal voltage: 800 V, nominal current: 1.5 A, connection type: Spring connection, Dimensioning section: 1 mm², cross-section: 0.08 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, color: gray

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3002214

ST 2,5-QUATTRO-DIO 1N 5408K/R-L

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Component terminal block

Terminal block for components, with 1N 5408K diode installed, nominal voltage: 800 V, nominal current: 1.5 A, connection type: Spring connection, Dimensioning section: 1 mm², cross-section: 0.08 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, color: gray

Component terminal block, with integrated diode 1N 5408K, nom. voltage: 800 V, nominal current: 1.5 A, connection method: Spring-cage connection, Rated cross section: 2.5 mm2, cross section: 0.08 mm2 - 4 mm2, mounting: NS 35/7,5, NS 35/15, color: gray

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3040753

STTB 2,5/2P-DIO/O-U

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Component terminal block

Terminal for components, Current and voltage are determined by the component used., with integrated diode, nominal voltage: 500 V, nominal current: 0.5 A, connection type: Spring connection / plug-in connection, 1st and 2nd floor, section: 0.08 mm² - 4 mm², mounting class: NS 35/15, NS 35/7.5, color: gray

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3046346

UT 4-MTD-DIO/L-R-P/P

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Component terminal block

Component terminal block, with threaded sockets for test sockets to accommodate test pins, nominal voltage: 800 V, nominal current: 0.5 A, number of connections: 2, connection type: Screw connection, Dimensioning cross-section: 1 mm², cross-section: 0.14 mm² - 6 mm², mounting class: NS 35/7.5, NS 35/15, colour: grey

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3031564

STTB 2,5-DIO.1N5408K/U-O

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Component terminal block

Terminal block for components, with 1N diode 5408K installed, nominal voltage: 500 V, nominal current: 1.5 A, 1st and 2nd floor, connection type: Spring connection, Dimensioning section: 2.5 mm², cross-section: 0.08 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, color: gray

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3211431

PTTB 2,5-2R/NAMUR

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Component terminal block

Terminal block for components, connection type: Push-in connection, 1st and 2nd floor, Sizing cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting class: NS 35/7.5, NS 35/15, color: gray

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