Disconnect Terminal Blocks

DIN rail multi-level terminal block with push-in spring connections designed for compact wiring and signal distribution in industrial control panels.

Disconnect terminal blocks are available as disconnect and knife-disconnect types from Phoenix Contact in screw, Push-X, spring cage, and push-in connection technologies with integrated test points, disconnect levers, removable links, and fuse holder options for safe circuit isolation, testing, and troubleshooting in DIN rail-mounted industrial control panels and automation systems.

Disconnect terminal blocks are designed to safely interrupt electrical circuits without requiring conductors to be removed. Commonly installed in control cabinets, these terminal blocks provide a practical method for isolating circuits during maintenance, testing, and troubleshooting. By allowing technicians to access circuits directly at the terminal block using standard test equipment, they help reduce risk while improving efficiency during system service and diagnostics.

Phoenix Contact CLIPLINE complete disconnect and knife-disconnect terminal blocks feature integrated test points that eliminate the need to remove conductors or bridges for circuit measurement, providing an additional test option directly at the terminal point. The double-function shaft allows disconnect terminal blocks to be freely combined with feed-through, fuse, high-current, and other CLIPLINE terminal block types within the same terminal strip, supported by uniform bridging, marking, and test accessories that reduce logistics costs and simplify panel organization. Screw connection disconnect terminal blocks provide maximum contact force and maintenance-free performance through the Reakdyn principle, while Push-X versions enable tool-free wiring of rigid and flexible conductors from 0.34mm² to 25mm² without ferrules.

Disconnect terminal blocks are DIN rail-mounted and engineered to fit into compact panel layouts. Many designs incorporate disconnect levers, removable links, or integrated fuse holders to provide flexible circuit separation and added protection in modular wiring systems and multi-circuit control panels where clear isolation and safe operation are essential. All Phoenix Contact disconnect terminal blocks are tested throughout the manufacturing process and approved for a wide range of national and international standards, providing high long-term stability and reliability in demanding industrial applications.

Found 27 items
Normally In Stock
Phoenix Contact 3040847 Disconnect terminal block ST 2,5-TWIN-TG/1P
Free U.S Ground shipping
$4.22
$3.52
Normally In Stock
Phoenix Contact 3038448 Disconnect terminal block ST 2,5-TWIN-TG
Free U.S Ground shipping
$4.19
$3.49
Normally In Stock
Phoenix Contact 3035483 Disconnect terminal block STTBS 4-TG
Free U.S Ground shipping
$11.59
$9.66
Normally In Stock
Phoenix Contact 3038451 Disconnect terminal block ST 2,5-QUATTRO-TG
Free U.S Ground shipping
$5.02
$4.18
Normally In Stock
Phoenix Contact 3038435 Disconnect terminal block ST 2,5-TG
Free U.S Ground shipping
$3.53
$2.94
Normally In Stock
Phoenix Contact 3037892 Knife-disconnect terminal block ST 2,5-QUATTRO-MT OG
Free U.S Ground shipping
$7.87
$6.56
Normally In Stock
Phoenix Contact 3038875 Knife-disconnect terminal block ST 4-MT
Free U.S Ground shipping
$7.62
$6.35
Normally In Stock
Phoenix Contact 3035043 Knife-disconnect terminal block ST 2,5-QUATTRO-MT RD
Free U.S Ground shipping
$6.72
$5.60
Normally In Stock
Phoenix Contact 3005808 Knife-disconnect terminal block ZDMTK 2,5-TWIN
Free U.S Ground shipping
$26.47
$22.06
Normally In Stock
Phoenix Contact 3035522 Knife-disconnect terminal block STTBS 4-MT BU
Free U.S Ground shipping
$11.63
$9.69
Normally In Stock
Phoenix Contact 3035470 Knife-disconnect terminal block STTBS 4-MT
Free U.S Ground shipping
$13.22
$11.02
Normally In Stock
Phoenix Contact 3005798 Knife-disconnect terminal block ZDMTK 2,5
Free U.S Ground shipping
$26.35
$21.96
Normally In Stock
Phoenix Contact 3036576 Knife-disconnect terminal block ST 2,5-QUATTRO-MT
Free U.S Ground shipping
$7.33
$6.11
Normally In Stock
Phoenix Contact 3037821 Knife-disconnect terminal block ST 2,5-TWIN-MT BU
Free U.S Ground shipping
$6.52
$5.43
Normally In Stock
Phoenix Contact 3037818 Knife-disconnect terminal block ST 2,5-MT BU
Free U.S Ground shipping
$5.16
$4.30
Normally In Stock
Phoenix Contact 3040766 Knife-disconnect terminal block ST 2,5-TWIN-MT/1P
Free U.S Ground shipping
$5.87
$4.89
Normally In Stock
Phoenix Contact 3006784 Knife-disconnect terminal block ZDMTK 2,5 BU
Free U.S Ground shipping
$26.18
$21.82
Normally In Stock
Phoenix Contact 3036990 Knife-disconnect terminal block STS 2,5-MT
Free U.S Ground shipping
$5.77
$4.81
Normally In Stock
Phoenix Contact 3036233 Component terminal block ST 2,5-QUATTRO-DIO/L-R
Free U.S Ground shipping
$8.33
$6.94
Normally In Stock
Phoenix Contact 3035014 Knife-disconnect terminal block ST 2,5-MT OG
Free U.S Ground shipping
$6.06
$5.05
Normally In Stock
Phoenix Contact 3036356 Knife-disconnect terminal block ST 2,5-TWIN-MT
Free U.S Ground shipping
$6.52
$5.43
Normally In Stock
Phoenix Contact 3036343 Knife-disconnect terminal block ST 2,5-MT
Free U.S Ground shipping
$5.77
$4.81
Normally In Stock
Phoenix Contact 3035140 Lever-type disconnect terminal block ST 4-HEDI
Free U.S Ground shipping
$9.24
$7.70
Normally In Stock
Phoenix Contact 3038367 Disconnect terminal block ST 4-TG
Free U.S Ground shipping
$3.89
$3.24
Normally In Stock
Phoenix Contact 3037009 Disconnect terminal block STS 2,5-TG
Free U.S Ground shipping
$3.67
$3.06
Normally In Stock
Phoenix Contact 3035535 Disconnect terminal block STTBS 4-TG BU
Free U.S Ground shipping
$11.59
$9.66
Normally In Stock
Phoenix Contact 3035577 Disconnect terminal block ST 2,5-TG BU
Free U.S Ground shipping
$4.12
$3.43

FAQs

Q: What is the primary purpose of a disconnect terminal block?

 Disconnect terminal blocks allow electrical circuits to be safely interrupted for maintenance, testing, or troubleshooting without removing the connected wires, reducing risk and improving service efficiency in industrial control panels.

Q: How do test disconnect terminal blocks work? 

Phoenix Contact disconnect terminal blocks with integrated test points enable circuits to be opened or measured directly at the terminal block using standard test equipment, eliminating the need to remove conductors or bridges for circuit measurement.

Q: What connection technologies are available in disconnect terminal blocks? 

Phoenix Contact disconnect and knife-disconnect terminal blocks are available in screw, Push-X, spring cage, and push-in connection technologies that can be freely combined with other CLIPLINE complete terminal block types using the double function shaft.

Q: Do disconnect terminal blocks support fuse protection? 

Yes. Many Phoenix Contact disconnect terminal blocks are compatible with integrated fuse holders or protective devices, and can be combined with fuse terminal blocks within the CLIPLINE complete system for enhanced circuit safety and protection.

Q: What conductor sizes do disconnect terminal blocks support? 

Depending on the connection technology and model selected, Phoenix Contact disconnect terminal blocks support conductor cross-sections from 0.34mm² to 25mm² for flexible, rigid, and multi-core conductors in control panel and automation wiring applications.

Why Buy Disconnect Terminal Blocks from RSP Supply

RSP Supply offers a dependable selection of disconnect terminal blocks designed for safe circuit isolation and efficient testing in industrial control panels. Our products support organized wiring, reliable connections, and compatibility with common DIN rail systems. Customers rely on RSP Supply for knowledgeable technical support and consistent access to industrial-grade terminal block solutions.