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(Knife) disconnect terminal block

In the realm of industrial electrical distribution and control, the (Knife) Disconnect Terminal Block stands as a critical component for safe isolation and maintenance. These terminal blocks, often referred to as fuse disconnect terminal blocks or switch disconnect terminals, integrate a manual switching mechanism—typically a knife-blade or rota...

In the realm of industrial electrical distribution and control, the (Knife) Disconnect Terminal Block stands as a critical component for safe isolation and maintenance. These terminal blocks, often referred to as fuse disconnect terminal blocks or switch disconnect terminals, integrate a manual switching mechanism—typically a knife-blade or rotary lever—directly into the terminal block housing. This allows for the physical separation of a circuit without removing wires, providing a visible air gap for lockout/tagout (LOTO) procedures. Key technical parameters include rated operational voltage (e.g., 400V to 1000V AC/DC), rated current (from 16A up to 125A or more depending on cross-section), and conductor cross-section capacity (e.g., 0.5 mm² to 35 mm²). They are available in various pole configurations (1P, 2P, 3P, 4P) and mounting styles, typically on DIN rails (EN 60715). The knife-blade design ensures a high short-circuit withstand capacity and reliable contact pressure, often incorporating test points for voltage measurement without disconnection.

These disconnect terminal blocks are predominantly deployed in industrial control panels, power distribution boards, and automation cabinets. They are essential in sectors such as manufacturing, process industries (chemical, pharmaceutical), energy generation, and building infrastructure. Their primary application is to provide a safe, visible isolation point for motors, drives, power supplies, and other critical loads. They are also used in railway signaling systems and renewable energy installations (solar inverters, wind turbine controls) where maintenance safety is paramount. The ability to quickly disconnect a circuit for troubleshooting or replacement without disturbing the wiring harness significantly reduces downtime and enhances technician safety.

Within our catalog, the (Knife) Disconnect Terminal Block category encompasses several subcategories and key article codes. Notable subcategories include standard knife disconnect blocks, fuse disconnect terminal blocks (with integrated fuse holders), and switch disconnect terminal blocks with auxiliary contacts. Key article codes often follow a structured naming convention, such as 'UKK-...' or 'DK-...' series, where the prefix indicates the family (e.g., 'UKK' for universal knife disconnect), followed by numbers denoting current rating and pole count (e.g., UKK 5-HESI for a 5 mm² fuse disconnect block). Other common codes include 'ST-...' for screw-type disconnect blocks and 'PT-...' for push-in technology variants. The exact code structure varies by manufacturer, but typically includes a base code, current rating, and optional suffix for accessories like end covers or marking tags.

Partnering with Electric Automation Network ensures you receive genuine, high-quality disconnect terminal blocks with full technical documentation and real-time pricing. Our engineering team provides personalized support to select the correct block for your voltage, current, and isolation requirements. We offer express worldwide shipping, ensuring critical components arrive when needed. Whether you need a standard 32A knife disconnect or a specialized 125A fuse disconnect block, our multilingual portal simplifies procurement across global projects.

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Manufacturer Code Reference Catalog Number Description Delivery Price

8WH6003-6AF00

8WH6003-6AF00

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IPO terminals, Instrument isolating terminal 2,5mm²; 3 Connection points

BORNES IPO, BORNE LENG. SECTION ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WH2000-6AF00

8WH2000-6AF00

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Isolating terminal for isolating terminal with spring-loaded connection, Cross section: 0.08-2.5 mm2, Width: 5.2mm, Color: gray

Spring-loaded interruptible terminal, section: 0.08 - 2.5 mm2, width: 5.2 mm, color: grey ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WH2000-6CG00

8WH2000-6CG00

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Instrument isolating terminal with spring-loaded connection, Cross-section: 0.5-4 mm2, Width: 6.2mm, Color: gray with blade

Spring-loaded interruptible terminal by connecting blade, section: 0.5 - 4 mm2, width: 6.2 mm, color: gray with blade ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WH2003-6AF00

8WH2003-6AF00

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Isolating terminal for isolating terminal with spring-loaded connection, 3 connection points Cross-section: 0.08-2.5 mm2, Width: 5.2mm, Color: gray

Spring-loaded interruptible terminal, 3 connection points, section: 0.08 - 2.5 mm2, width: 5.2 mm, color: grey ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WA1011-1MH15

8WA1011-1MH15

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Instrument isolating terminal thermoplast Screw terminal on both sides with test socket, 8mm, Sz. 6

Passage terminal, insulating thermal material, screw connection on both sides, with test bushing, 8mm, size 6 (** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 20 Units ** ). Manufactured to customer specifications. Non-Cancelable Non-Returnable.

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8WH6003-6CF00

8WH6003-6CF00

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IPO terminals, Isolating terminal

IPO TERMINALS, SEPARATION TERMINAL ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WH6000-6CF00

8WH6000-6CF00

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IPO terminals, Isolating terminal

IPO TERMINALS, SEPARATION TERMINAL ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WH6004-6AF00

8WH6004-6AF00

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IPO terminals, Instrument isolating terminal

BORNES IPO, BORNE LENG. SECTION ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WH6004-6CF00

8WH6004-6CF00

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IPO terminals, Isolating terminal

BORNES IPO, BORNE DE SEPARACION ( ** ATENCION : Price per 1 Unit and Minimum Quantity / Multiplo of Order 50 Units ** ). Cancelations and returns limited. Consult conditions.

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8WA1011-1MH11

8WA1011-1MH11

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Isolating terminal thermoplast Screw terminal on both sides without test socket, 8mm, Sz. 6

Separation terminal, insulating thermal material, screw connection on both sides, without test bushing, 8mm, size 6 (** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 20 Units ** ). Manufactured to customer specifications. Non-Cancelable Non-Returnable.

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3044679

UTT 2,5-2MT

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Knife disconnect terminal block

Blade interruptible terminal block, nominal voltage: 400 V, nominal current: 16 A, connection type: Screw connection, Sizing cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², connection type: Screw connection, Sizing cross-section: 2.5 mm², cross-section: 0.14 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, color: gray

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3046172

UT 4-MT-P/P TMR

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Knife disconnect terminal block

Knife-interruptible terminal block, with 180° rotating disconnector blade and test socket screws for housing test pins, connection type: screw connection, cross-section: 0.14 mm² - 6 mm², AWG: 26 - 10, rated current: 20 A, rated voltage: 500 V, length: 57.8 mm, width: 6.2 mm, colour: grey, mounting: NS 35/7.5, NS 35/15

Knife disconnect terminal block, with 180° rotated disconnect knife and test socket screws for accommodating test plugs, connection method: screw connection, cross section: 0.14 mm2 - 6 mm2, AWG: 26 - 10, nominal current: 20 A, nominal voltage: 500 V, length: 57.8 mm, width: 6.2 mm, color: gray, mounting: NS 35/7,5, NS 35/15

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3070305

USST 4-MT BU

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Knife disconnect terminal block

Blade interruptible terminal block, nominal voltage: 500 V, nominal current: 20 A, 1st floor, connection type: Screw connection with spring support, Sizing cross-section: 4 mm², cross-section: 0.2 mm² - 6 mm², mounting: NS 35/7.5, NS 35/15, NS 32, color: blue

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3070118

URTK/S GN

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Test disconnect terminal block

Borne interrupts. for circ. Size, with sliding link, rated voltage: 400 V, rated current: 41 A, connection type: Screw connection, 1st floor, Sizing cross-section: 6 mm², cross-section: 0.5 mm² - 10 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: green

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3104107

MTK-P/P MIT SPERRE

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Knife disconnect terminal block

Blade interruptible terminal block, with threaded sockets for test sockets to accommodate test pins, nominal voltage: 400 V, nominal current: 16 A, 1st floor, connection type: Screw connection, Dimensioning section: 2.5 mm², section: 0.2 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, NS 32, color: gray

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3007055

UKK 5-T

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Disconnect terminal block

Interruptible terminal, With interrupting plug, nominal voltage: 400 V, nominal current: 26 A, 1st floor, connection type: Screw connection, Sizing section: 4 mm², section: 0.2 mm² - 4 mm², 2. Floor, connection type: Screw connection, Sizing section: 4 mm², section: 0.2 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, NS 32, Color: Gray

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3046152

UT 4-MTL KNIFE-RD

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Knife disconnect terminal block

Knife interruptible terminal block, with actuation tab, nominal voltage: 500 V, nominal current: 20 A, connection type: Screw connection, Sizing cross-section: 2.5 mm², cross-section: 0.14 mm² - 6 mm², mounting: NS 35/7.5, NS 35/15, color: gray

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3046153

UT 6-MTL KNIFE-RD

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Knife disconnect terminal block

Blade interruptible terminal block, with actuation tab, nominal voltage: 500 V, nominal current: 20 A, connection type: Screw connection, Dimensioning cross-section: 6 mm², cross-section: 0.2 mm² - 10 mm², mounting: NS 35/7.5, NS 35/15, colour: grey

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3046155

UT 6-MTL-P/P KNIFE-RD

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Knife disconnect terminal block

Blade interruptible terminal block, with drive tab and threaded sockets for test sockets to accommodate test pins, nominal voltage: 500 V, nominal current: 20 A, connection type: Screw connection, Dimensioning section: 2.5 mm², section: 0.2 mm² - 10 mm², mounting: NS 35/7.5, NS 35/15, color: gray

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3035030

ST 2,5-QUATTRO-MT BK

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Knife disconnect terminal block

Blade interruptible terminal block, nominal voltage: 400 V, nominal current: 20 A, 1st 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: black

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3212316

PT 2,5-MT OG

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Knife disconnect terminal block

Blade interruptible terminal block, nominal voltage: 400 V, nominal current: 20 A, 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: orange

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3210406

PTTBS 2,5-TGB/MTB

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Disconnect terminal block

Interruptible terminal, Current and voltage are determined by the connector used., Double height with inclined contour, a disconnector blade and a separation point, nominal voltage: 400 V, nominal current: 16 A, 1st and 2nd floor, connection type: Push-in connection, Dimensioning section: 2.5 mm², section: 0.14 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, colour: grey

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3210405

PTTBS 2,5-MTB/TGB

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Disconnect terminal block

Interruptible terminal, Current and voltage are determined by the connector used., Double height with inclined contour, a disconnector blade and a separation point, nominal voltage: 400 V, nominal current: 16 A, 1st and 2nd floor, connection type: Push-in connection, Dimensioning section: 2.5 mm², section: 0.14 mm² - 4 mm², mounting: NS 35/7.5, NS 35/15, colour: grey

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3210173

PT 2,5-QUATTRO-MT OG

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Knife disconnect terminal block

Blade interruptible terminal block, nominal voltage: 400 V, nominal current: 20 A, 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: orange

Knife-disconnect terminal block, nom. voltage: 400 V, nominal current: 20 A, connection method: Push-in connection, Rated cross section: 2.5 mm2, cross section: 0.14 mm2 - 4 mm2, mounting: NS 35/7,5, NS 35/15, color: orange

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3210171

PT 2,5-TWIN-MT OG

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Knife disconnect terminal block

Blade interruptible terminal block, nominal voltage: 400 V, nominal current: 20 A, 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: orange

Knife-disconnect terminal block, nom. voltage: 400 V, nominal current: 20 A, connection method: Push-in connection, Rated cross section: 2.5 mm2, cross section: 0.14 mm2 - 4 mm2, mounting: NS 35/7,5, NS 35/15, color: orange

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3029538

UK 5-MTK-P/P OG

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Knife disconnect terminal block

Blade interruptible terminal block, with threaded socket sockets to accommodate test pins, rated voltage: 500 V, rated current: 16 A, 1st floor, connection type: Screw connection, Sizing cross-section: 2.5 mm², cross-section: 0.2 mm² - 6 mm², mounting: NS 32, NS 35/7.5, NS 35/15, color: orange

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3070517

URTK/SP YE

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Test disconnect terminal block

Borne interrupts. for circ. Size, with sliding link, rated voltage: 500 V, rated current: 41 A, connection type: Screw connection, 1st floor, Sizing cross-section: 6 mm², cross-section: 0.5 mm² - 10 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: yellow

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3070516

URTK/SP BU

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Test disconnect terminal block

Borne interrupts. for circ. Size, with sliding link, rated voltage: 500 V, rated current: 41 A, connection type: Screw connection, 1st floor, Sizing cross-section: 6 mm², cross-section: 0.5 mm² - 10 mm², mounting class: NS 35/7.5, NS 35/15, NS 32, color: blue

Borne interrupts. for circ. Size, with sliding link, rated voltage: 500 V, rated current: 41 A, connection type: Screw connection, 1st floor, Sizing cross-section: 6 mm2, cross-section: 0.5 mm2 - 10 mm2, mounting class: NS 35/7.5, NS 35/15, NS 32, color: blue

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8WH2000-6AG00

8WH2000-6AG00

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Isolating terminal with spring-loaded connection, Cross-section: 0.5-4 mm2, Width: 6.2mm, Color: gray

Spring-loaded interruptible terminal, section: 0.5 - 4 mm2, width: 6.2 mm, color: gray ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Request Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

8WH6000-6AF00

8WH6000-6AF00

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IPO terminals, Instrument isolating terminal

BORNES IPO, BORNE LENG. SECTION ( ** ATTENTION : Price per 1 Unit and Minimum Quantity / Order Multiple 50 Units ** ). Cancelations and returns limited. Consult conditions.

 		3 View Availability View Price

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