Terminal Blocks

Terminal blocks are essential components used to safely and efficiently connect electrical conductors in control panels, industrial automation systems, and power distribution applications. By providing a secure termination point for field wiring, terminal blocks help organize complex wiring layouts while reducing the risk of loose connections, signal loss, or electrical faults. Their modular design supports clean, serviceable installations in control cabinets and junction boxes.

Available in multiple connection technologies, including screw, spring clamp, and push-in. terminal blocks can be selected to match installation preferences and application requirements. Screw terminal blocks offer a traditional, robust connection method, while spring and push-in styles support faster wiring with consistent contact pressure. Terminal blocks are designed to accommodate a wide range of wire sizes and conductor cross-sections, supporting both low-voltage signal wiring and high-current power applications. Terminal blocks are commonly mounted on DIN rails or fixed to mounting plates, allowing flexible configuration and easy expansion. While PCB terminal blocks and terminal block connectors are used to interface directly with circuit boards, traditional terminal blocks remain critical for field wiring and panel-level connections. RSP Supply carries terminal blocks from trusted manufacturers including Eaton, IDEC, Phoenix Contact, Schneider Electric, and Weidmüller to support reliable performance across industrial systems.

Found 274 items
Normally In Stock
Phoenix Contact 3046278 Knife-disconnect terminal block UT 4-MT BU
Free U.S Ground shipping
$4.22
$3.52
Normally In Stock
Phoenix Contact 3044720 Disconnect terminal block UTTB 4-TG
Free U.S Ground shipping
$6.44
$5.37
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Phoenix Contact 3044775 Knife-disconnect terminal block UTTB 4-MT
Free U.S Ground shipping
$8.16
$6.80
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Phoenix Contact 3046139 Knife-disconnect terminal block UT 4-MT
Free U.S Ground shipping
$3.34
$2.78
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Phoenix Contact 3046142 Disconnect terminal block UT 4-TG
Free U.S Ground shipping
$2.72
$2.27
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Phoenix Contact 3044670 Knife-disconnect terminal block UTT 2,5-2MT-P/P
Free U.S Ground shipping
$13.51
$11.26
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Phoenix Contact 3046141 Knife-disconnect terminal block UT 4-MT-EX
Free U.S Ground shipping
$4.66
$3.88
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Phoenix Contact 3002618 Disconnect terminal block PT 4-PE/L/TG
Free U.S Ground shipping
$17.63
$14.69
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Phoenix Contact 3104013 Knife-disconnect terminal block MTK-P/P
Free U.S Ground shipping
$11.47
$9.56
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Phoenix Contact 1076793 Knife-disconnect terminal block PT 10-MTL KNIFE-RD
Free U.S Ground shipping
$12.79
$10.66
Normally In Stock
Phoenix Contact 3046143 Disconnect terminal block UT 4-TG-EX
Free U.S Ground shipping
$3.28
$2.73
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Phoenix Contact 3044801 Disconnect terminal block UTTB 4-TG P/P
Free U.S Ground shipping
$6.98
$5.82
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Phoenix Contact 3046171 Knife-disconnect terminal block UT 4-MT-P/P
Free U.S Ground shipping
$3.72
$3.10
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Phoenix Contact 3046265 Knife-disconnect terminal block UT 4-MT-P/P BU
Free U.S Ground shipping
$4.99
$4.16
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Phoenix Contact 3046252 Lever-type disconnect terminal block UT 4-HEDI-P/P
Free U.S Ground shipping
$6.53
$5.44
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Phoenix Contact 3073283 Disconnect terminal block UT 4-TG BU
Free U.S Ground shipping
$2.70
$2.25
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Phoenix Contact 3046168 Disconnect terminal block UT 4-TG-P/P
Free U.S Ground shipping
$3.02
$2.52
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Phoenix Contact 3046388 Disconnect terminal block UT 2,5-TG
Free U.S Ground shipping
$3.24
$2.70
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Phoenix Contact 3046595 Disconnect terminal block UT 4-TWIN-TG
Free U.S Ground shipping
$4.55
$3.79
Normally In Stock
Phoenix Contact 3046173 Knife-disconnect terminal block UT 4-MT-P/P-EX
Free U.S Ground shipping
$5.08
$4.23
Normally In Stock
Phoenix Contact 3044680 Knife-disconnect terminal block UTT 2,5-2MT BU
Free U.S Ground shipping
$30.77
$25.64
Normally In Stock
Phoenix Contact 3046144 Knife-disconnect terminal block UT 4-MTL
Free U.S Ground shipping
$5.69
$4.74
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Phoenix Contact 3046152 Knife-disconnect terminal block UT 4-MTL KNIFE-RD
Free U.S Ground shipping
$5.56
$4.63
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Phoenix Contact 3007042 Disconnect terminal block UKK 5-TG
Free U.S Ground shipping
$19.32
$16.10
Normally In Stock
Phoenix Contact 3046456 Lever-type disconnect terminal block UT 4-HEDI BU
Free U.S Ground shipping
$7.92
$6.60
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Phoenix Contact 3076015 Knife-disconnect terminal block UTTB 4-MT P/P BU
Free U.S Ground shipping
$8.63
$7.19
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Phoenix Contact 3000604 Disconnect terminal block UK 5 N-TG
Free U.S Ground shipping
$7.80
$6.50
Normally In Stock
Phoenix Contact 3210185 Disconnect terminal block PT 2,5-TG
Free U.S Ground shipping
$3.30
$2.75
Normally In Stock
Phoenix Contact 3046279 Knife-disconnect terminal block UT 4-MT RD
Free U.S Ground shipping
$4.32
$3.60
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Phoenix Contact 3210442 Multi-level terminal block PT 4-PE/3L
Free U.S Ground shipping
$16.09
$13.41
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Phoenix Contact 1079072 Disconnect terminal block PTV 2,5-QUATTRO-TG
Free U.S Ground shipping
$5.17
$4.31
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Phoenix Contact 3048467 Feed-through terminal block UDMTK 5
Free U.S Ground shipping
$30.18
$25.15
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Phoenix Contact 3024478 Knife-disconnect terminal block UDMTKB 5-P/P
Free U.S Ground shipping
$32.40
$27.00
Normally In Stock
Phoenix Contact 3101016 Knife-disconnect terminal block MTK
Free U.S Ground shipping
$10.31
$8.59
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Phoenix Contact 3101197 Knife-disconnect terminal block MTK BU
Free U.S Ground shipping
$10.31
$8.59
Normally In Stock
Phoenix Contact 3004430 Knife-disconnect terminal block UK 5-MTK
Free U.S Ground shipping
$14.70
$12.25
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Phoenix Contact 3001269 Disconnect terminal block OTTA 6-T/SB-P/P
Free U.S Ground shipping
$18.90
$15.75
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 3211909 Disconnect terminal block PTTB 4-TG
Free U.S Ground shipping
$6.17
$5.14
Normally In Stock
Phoenix Contact 3212160 Knife-disconnect terminal block PT 6-MT
Free U.S Ground shipping
$7.94
$6.62
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Phoenix Contact 0790462 Disconnect terminal block OTTA 6-T-P/P
Free U.S Ground shipping
$19.28
$16.07
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Phoenix Contact 1336395 Disconnect terminal block PT 2,5-L/L/L/TG
Free U.S Ground shipping
$14.12
$11.77
Normally In Stock
Phoenix Contact 1132641 Knife-disconnect terminal block UT 2,5-MT RD
Free U.S Ground shipping
$4.85
$4.04
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 3206678 Lever-type disconnect terminal block QTC 2,5-HEDI
Free U.S Ground shipping
$9.11
$7.59

FAQs

Q: What are terminal blocks used for?
Terminal blocks are used to connect, organize, and manage electrical wires in control panels, automation systems, and power distribution equipment.

Q: What types of terminal block connection technologies are available?
Common connection types include screw clamp, spring clamp, and push-in terminal blocks, each offering different installation and performance benefits.

Q: Are terminal blocks suitable for high-current applications?
Yes, many terminal blocks are designed to handle high-current and power distribution applications, depending on their rating and construction.

Q: How are terminal blocks mounted?
Terminal blocks are typically mounted on DIN rails or secured to mounting plates inside control panels and junction boxes.

Q: Which manufacturers of terminal blocks does RSP Supply offer?
RSP Supply offers terminal blocks from trusted manufacturers including Eaton, IDEC, Phoenix Contact, Schneider Electric, and Weidmüller.

Why Buy Terminal Blocks from RSP Supply

RSP Supply offers a comprehensive selection of terminal blocks designed for secure, organized, and reliable wire connections in industrial systems. Our product lineup from leading manufacturers supports efficient panel design, long-term performance, and dependable operation across automation and distribution applications.