Barrier Terminal Blocks
Product Category Overview
Barrier terminal blocks provide a simple, reliable screw connection for power and control circuits. QITAI barrier terminal blocks are available in multiple pole counts and current ratings for panel wiring and PCB applications.
Key Selection Parameters
| Connection | Screw barrier type |
| Pole counts | Multiple, per model |
| Material | PA66 housing, copper alloy contacts |
| Mounting | Panel / PCB |
| Certification | CE |
Applications
- Power distribution boards
- Control panel wiring
- Test and measurement equipment
Frequently Asked Questions
What wire sizes do barrier terminal blocks accept?
Conductor ranges vary by model - check the product page for the specific AWG/mm² rating of each block.
Are the screws reusable?
Yes, screw barrier terminals support repeated loosening and re-tightening for maintenance.
Related Categories
Terminal Block, Screw Din Rail Terminal Blocks, Distribution Terminal Blocks, Terminal Block Accessories
Shenzhen Qitai Technology Co., Ltd. is a national high-tech enterprise and ISO9001/14001/45001 certified manufacturer. All products are CE/RoHS certified and available factory direct. Contact our engineers for technical support and free samples.
-
QTB-3005 5 Position Screw Terminal Block 32A 4mm2 Feed Through Power Distribution DIN Rail Mount for Electrical Cabinet
Regular price $1.67 USDRegular price$1.67 USDSale price $1.67 USD -
QTCQ-210 Barrier Terminal Block - 13mm Pitch, 4P, 600V, 50A
Regular price $4.43 USDRegular price$4.43 USDSale price $4.43 USD -
QTCQ-130F Barrier Terminal Block - 13mm Pitch, 2-16P, 600V, 50A
Regular price $0.83 USDRegular price$0.83 USDSale price $0.83 USD -
QTCQ-130-2 Barrier Terminal Block - 13mm Pitch, 2-16P, 600V, 50A
Regular price $0.76 USDRegular price$0.76 USDSale price $0.76 USD -
QTCQ-075 Barrier Terminal Block - 7.5mm Pitch, 2-24P, 600V, 17A
Regular price $0.26 USDRegular price$0.26 USDSale price $0.26 USD -
QTB-30004 High Current Feed-Through Terminal Block - 309A
Regular price $21.00 USDRegular price$21.00 USDSale price $21.00 USD -
QTB-3003 Barrier Terminal Block - 3P, 32A - Variant 2
Regular price $1.30 USDRegular price$1.30 USDSale price $1.30 USD -
QTCQ-130-2F Barrier Terminal Block - 13mm Pitch, 2-16P, 600V, 50A
Regular price $1.29 USDRegular price$1.29 USDSale price $1.29 USD -
QTCQ-130 Barrier Terminal Block - 13mm Pitch, 2-16P, 600V, 50A
Regular price $0.76 USDRegular price$0.76 USDSale price $0.76 USD -
QTCQ-075F Barrier Terminal Block - 7.5mm Pitch, 2-24P, 600V, 17A
Regular price $0.33 USDRegular price$0.33 USDSale price $0.33 USD -
QUTD-10 Fuse Screw Terminal Block - 660V, 15A
Regular price $0.14 USDRegular price$0.14 USDSale price $0.14 USD -
QUTD-15 Fuse Screw Terminal Block - 2mm2, 660V, 20A
Regular price $0.14 USDRegular price$0.14 USDSale price $0.14 USD -
QUTD-24 Fuse Screw Terminal Block - 4mm2, 660V, 32A
Regular price $0.19 USDRegular price$0.19 USDSale price $0.19 USD -
QUTD-32 Fuse Screw Terminal Block - 1.25-5.5mm2, 660V, 40A
Regular price $0.23 USDRegular price$0.23 USDSale price $0.23 USD -
QUTD-41 Fuse Screw Terminal Block - 8mm2, 660V, 50A
Regular price $0.36 USDRegular price$0.36 USDSale price $0.36 USD -
QUTD-10/2-2 Double-Level Fuse Screw Terminal Block - 660V, 15A
Regular price $0.40 USDRegular price$0.40 USDSale price $0.40 USD -
QUTD-15/2-2 Double-Level Fuse Screw Terminal Block - 660V, 20A
Regular price $0.39 USDRegular price$0.39 USDSale price $0.39 USD -
QUTD-24/2-2 Double-Level Fuse Screw Terminal Block - 2.5mm2, 660V, 24A
Regular price $0.50 USDRegular price$0.50 USDSale price $0.50 USD