Disconnect Terminal Blocks

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, they help reduce risk while improving efficiency during system service and diagnostics.

RSP Supply offers disconnect terminal blocks with features that support safe handling of live circuits when testing or troubleshooting is required. Test disconnect terminal blocks allow circuits to be opened or measured without fully disconnecting power, enabling accurate testing using standard electrical instruments. This functionality helps minimize wiring errors and reduces the need to disturb permanent connections within the control panel.

Disconnect terminal blocks are typically 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. These features make disconnect terminal blocks well suited for modular wiring systems and multi-circuit control panels where clear isolation and safe operation are essential.

Found 263 items
Filters
Found 263 items
Manufacturer
Phoenix Contact (263)
Component
Terminal Block (263)
Sub Component
Bolt Connection Terminal Block (3)
Disconnect Terminal Block (258)
Feed-Through Terminal Block (5)
Ground Terminal Block (1)
Knife Disconnect Terminal Block (138)
Lever-Type Disconnect Terminal Block (7)
Test Disconnect Terminal Block (5)
Terminal Block Component Color
Black (1)
Black/Orange (6)
Blue (71)
Gray (169)
Orange (9)
Red (5)
Yellow (2)
Terminal Block Number of Levels
1 (207)
2 (55)
Terminal Block Voltage Rating
24 Volt (2)
110 Volt (1)
400 Volt (126)
500 Volt (94)
630 Volt (5)
800 Volt (4)
1000 Volt (3)
Terminal Block Amperage
6.3 Amp (1)
8 Amp (2)
9 Amp (4)
10 Amp (17)
16 Amp (50)
17.5 Amp (7)
18 Amp (3)
20 Amp (140)
22 Amp (3)
26 Amp (8)
Terminal Block Width
3.5 mm (18)
5.2 mm (105)
6 mm (2)
6.1 mm (3)
6.2 mm (99)
8.2 mm (27)
10.2 mm (2)
11 mm (3)
22.5 mm (2)
Terminal Block Max Wire Size
6 (1)
8 (20)
10 (76)
12 (102)
14 (20)
16 (7)
Terminal Block Min Wire Size
20 (12)
22 (1)
24 (70)
26 (119)
28 (24)
Jumper Number of Positions
4 (3)
Terminal Block Connection Method
Bolt Connection (3)
Plug Connection (2)
Push-In Connection (67)
Quick Connection (9)
Screw Connection (129)
Spring-Cage Connection (27)
Terminal Block Diode
With Diode (4)
Terminal Block Disconnect
Knife Disconnect (143)
Lever-Type Disconnect (2)
Removable Disconnect (87)
Terminal Block Fused
Fused (20)
Not Fused (194)
Terminal Block Grounded
Grounded (3)
Not Grounded (229)
Terminal Block Indication
12V LED Indicator (2)
24V LED Indicator (1)
48V LED Indicator (1)
No Indicator (229)
Terminal Block Number of Connections
2 (141)
3 (34)
4 (86)
8 (2)
Terminal Block With Test Disconnects
With Test Socket Screws (40)
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 3044775 Knife-disconnect terminal block UTTB 4-MT
Free U.S Ground shipping
$8.16
$6.80
Normally In Stock
Phoenix Contact 3046139 Knife-disconnect terminal block UT 4-MT
Free U.S Ground shipping
$3.34
$2.78
Normally In Stock
Phoenix Contact 3046142 Disconnect terminal block UT 4-TG
Free U.S Ground shipping
$2.72
$2.27
Normally In Stock
Phoenix Contact 3044670 Knife-disconnect terminal block UTT 2,5-2MT-P/P
Free U.S Ground shipping
$13.51
$11.26
Normally In Stock
Phoenix Contact 3046141 Knife-disconnect terminal block UT 4-MT-EX
Free U.S Ground shipping
$4.66
$3.88
Normally In Stock
Phoenix Contact 3104013 Knife-disconnect terminal block MTK-P/P
Free U.S Ground shipping
$11.47
$9.56
Normally In Stock
Phoenix Contact 3046143 Disconnect terminal block UT 4-TG-EX
Free U.S Ground shipping
$3.28
$2.73
Normally In Stock
Phoenix Contact 3046171 Knife-disconnect terminal block UT 4-MT-P/P
Free U.S Ground shipping
$3.72
$3.10
Normally In Stock
Phoenix Contact 3046265 Knife-disconnect terminal block UT 4-MT-P/P BU
Free U.S Ground shipping
$4.99
$4.16
Normally In Stock
Phoenix Contact 3007042 Disconnect terminal block UKK 5-TG
Free U.S Ground shipping
$19.32
$16.10
Normally In Stock
Phoenix Contact 3073283 Disconnect terminal block UT 4-TG BU
Free U.S Ground shipping
$2.70
$2.25
Normally In Stock
Phoenix Contact 3046168 Disconnect terminal block UT 4-TG-P/P
Free U.S Ground shipping
$3.02
$2.52
Normally In Stock
Phoenix Contact 3046388 Disconnect terminal block UT 2,5-TG
Free U.S Ground shipping
$3.24
$2.70
Normally In Stock
Phoenix Contact 3046595 Disconnect terminal block UT 4-TWIN-TG
Free U.S Ground shipping
$4.55
$3.79
Normally In Stock
Phoenix Contact 3046252 Lever-type disconnect terminal block UT 4-HEDI-P/P
Free U.S Ground shipping
$6.53
$5.44
Normally In Stock
Phoenix Contact 3046456 Lever-type disconnect terminal block UT 4-HEDI BU
Free U.S Ground shipping
$7.92
$6.60
Normally In Stock
Phoenix Contact 3076015 Knife-disconnect terminal block UTTB 4-MT P/P BU
Free U.S Ground shipping
$8.63
$7.19
Normally In Stock
Phoenix Contact 3046144 Knife-disconnect terminal block UT 4-MTL
Free U.S Ground shipping
$5.69
$4.74
Normally In Stock
Phoenix Contact 3046152 Knife-disconnect terminal block UT 4-MTL KNIFE-RD
Free U.S Ground shipping
$5.56
$4.63
Normally In Stock
Phoenix Contact 3004430 Knife-disconnect terminal block UK 5-MTK
Free U.S Ground shipping
$14.70
$12.25
Normally In Stock
Phoenix Contact 3000604 Disconnect terminal block UK 5 N-TG
Free U.S Ground shipping
$7.80
$6.50
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 3211909 Disconnect terminal block PTTB 4-TG
Free U.S Ground shipping
$6.17
$5.14
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 3048467 Feed-through terminal block UDMTK 5
Free U.S Ground shipping
$30.18
$25.15
Normally In Stock
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
Normally In Stock
Phoenix Contact 3101197 Knife-disconnect terminal block MTK BU
Free U.S Ground shipping
$10.31
$8.59
Normally In Stock
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 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 3212160 Knife-disconnect terminal block PT 6-MT
Free U.S Ground shipping
$7.94
$6.62
Normally In Stock
Phoenix Contact 0790462 Disconnect terminal block OTTA 6-T-P/P
Free U.S Ground shipping
$19.28
$16.07
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 3046279 Knife-disconnect terminal block UT 4-MT RD
Free U.S Ground shipping
$4.32
$3.60
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
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 0311142 Feed-through terminal block URTKD/SP
Free U.S Ground shipping
$51.00
$42.50
Normally In Stock
Phoenix Contact 1336388 Knife-disconnect terminal block PT 2,5-PE/L/L/MT
Free U.S Ground shipping
$19.37
$16.14
Normally In Stock
Phoenix Contact 0790446 Disconnect terminal block OTTA 6-T
Free U.S Ground shipping
$18.52
$15.43
Normally In Stock
Phoenix Contact 3212163 Disconnect terminal block PT 6-TG
Free U.S Ground shipping
$5.63
$4.69
Normally In Stock
Phoenix Contact 1336406 Knife-disconnect terminal block PT 2,5-L/L/L/MT
Free U.S Ground shipping
$15.52
$12.93
Normally In Stock
Phoenix Contact 1079065 Disconnect terminal block PTV 2,5-TG
Free U.S Ground shipping
$3.64
$3.03

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.

Q: How do test disconnect terminal blocks work?
Test disconnect terminal blocks enable circuits to be opened or measured directly at the terminal block, allowing technicians to test live circuits safely using standard test equipment.

Q: What mounting types are used for disconnect terminal blocks?
Most disconnect terminal blocks are designed for DIN rail mounting, making them easy to install and organize within control cabinets.

Q: Do disconnect terminal blocks support fuse protection?
Yes, many disconnect terminal blocks include integrated fuse holders or are compatible with protective devices to enhance circuit safety.

Q: What conductor sizes do disconnect terminal blocks support?
Disconnect terminal blocks typically support conductor cross sections ranging from approximately 0.2 mm² to 10 mm², depending on the specific model.

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.