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Category
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Semiconductors
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Electro-insulated Modules
- Electro-insulated Modules | VISHAY (IR)
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- Bridge Rectifiers
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Transistors
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- SiC MOSFET Modules | Mitsubishi
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Passive components (capacitors, resistors, fuses, filters)
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Fuses
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Relays and Contactors
- Relays and Contactors - Theory
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Single-Phase AC Semiconductor Relays
- AC ONE PHASE RELAYS 1 series| D2425 | D2450
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- One phase semiconductor relays - gn series
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Batteries, Chargers, Buffer Power Supplies and Inverters
- Batteries, Chargers - Theoretical Description
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Automatics
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Infrared Thermometers (Pyrometers)
- IR-TE Series - Water-proof Palm-sized Radiation Thermometer
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- Counters, Time Relays, Panel Meters
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Cables, Litz wires, Conduits, Flexible connections
- Wires
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Cables for extreme applications
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- Sleevings
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Braids
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- Cylindrical Cooper Braids and Sleevings
- Flexible Earthing Connections
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- Flat Aluminium Braids
- Junction Set - Braids and Tubes
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- Traction Equipment
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- Flexible Insulated Busbars
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Semiconductors
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Distribution blocks and terminals
Information
Products that are marked "On Order" in the "Available Quantity" column are usually not in stock. Such products are available for purchase, however, due to their limited customer base, they usually have higher minimum quantities. DACPOL offers products that are not in stock for the following reasons: DACPOL currently has a large number of electronic components in stock and adds new products every day, however, tens of thousands of additional components and their various variants are available from our suppliers. Even though it is unreasonable to have all these products in stock due to the limited sales, we believe that it is in the best interest of our customers to make them available. Our goal is to inform customers about the maximum number of products available and enable them to make decisions based on specifications, prices, availability, required minimums and our technical advice. Please note that selecting the "In Stock" checkbox may limit the display to only products available for delivery straight from the shelf.
| Image | View the product | No. Manufacturer | |||||||||||||||||||||||||||||||||||||||||||
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MOREK | OL150-2 Al/Cu 2x50-150mm² High-strength device clamp MAJ2150E10 | SEE IT | MAJ2150E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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MOREK | OL-PEN300 PEN connector configurable Al/Cu 185-300mm² MAJ4300S10 | SEE IT | MAJ4300S10 | On Order | 128.5 | 220 | 690 | Black | -- | -- | 70 | Direct mount | NA | -- | -- | -- | -- | 185..300 | 185..300 | NA | 185..300 | Screw connection | 1 | 5 | Thermoplastic material | V2 | NO | NO | NO | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OT120 1xAl/Cu 16-120 mm² MAC1120E10 device terminal | SEE IT | MAC1120E10 | On Order | 25 | 64 | 690 | Inne | -- | -- | 35 | Inne | 280 | -- | -- | -- | -- | 16..120 | 16..120 | UN | 16..120 | Screw connection | 1 | 1 | Brak | NA | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OT150 1xAl/Cu 16-150 mm² MAC1150E10 device terminal | SEE IT | MAC1150E10 | On Order | 26 | 62 | 690 | Inne | -- | -- | 39 | Inne | 320 | -- | -- | -- | -- | 25..150 | 25..150 | UN | 25..150 | Screw connection | 1 | 1 | Brak | NA | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OT240 1xAl/Cu 35-240 mm² MAC1240E10 device terminal | SEE IT | MAC1240E10 | On Order | 32 | 74 | 690 | Inne | -- | -- | 44 | Inne | 425 | -- | -- | -- | -- | 35..240 | 35..240 | UN | 35..240 | Screw connection | 1 | 1 | Brak | NA | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OT300 1xAl/Cu 95-300 mm² MAC1300E10 device clamp | SEE IT | MAC1300E10 | On Order | 40 | 64 | 690 | Inne | -- | -- | 48 | Inne | 490 | -- | -- | -- | -- | 95..300 | 95..300 | UN | 95..300 | Screw connection | 1 | 1 | Brak | NA | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OT50 1xAl/Cu 1.5-50 mm² MAC1050E10 device terminal | SEE IT | MAC1050E10 | On Order | 14 | 35 | 690 | Inne | -- | -- | 21.5 | Inne | 160 | -- | -- | -- | -- | 1.5..50 | 1.5..50 | UN | 1.5..50 | Screw connection | 1 | 1 | Brak | NA | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OT95 1xAl/Cu 16-95 mm² MAC1095E10 device terminal | SEE IT | MAC1095E10 | On Order | 20 | 46 | 690 | Inne | -- | -- | 30 | Inne | 245 | -- | -- | -- | -- | 6..95 | 6..95 | UN | 6..95 | Screw connection | 1 | 1 | Brak | NA | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OTH240-3 3xAl/Cu 85-240 mm² 800A Device terminal MAC3240A14 | SEE IT | MAC3240A14 | On Order | 30 | 94 | -- | Inne | -- | Nie | 63 | Direct mount | 690 | -- | 1 | -- | Yes | -- | -- | -- | 85..240 | Screw connection | -- | -- | Brak | NA | NO | NO | -- | UN | 85..240 | 85..185 | NA | 3 | -- | -- | -- | -- | -- | -- | -- | -- | UN |
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MOREK | OTH240-4 4xAl/Cu 85-240 mm² 1250A Device terminal MAC4240A14 | SEE IT | MAC4240A14 | On Order | 54 | 94 | -- | Inne | -- | Nie | 63 | Direct mount | 1250 | -- | 1 | -- | Yes | -- | -- | -- | 85..240 | Screw connection | -- | -- | Brak | NA | NO | NO | -- | UN | 85..240 | 85..185 | NA | 4 | -- | -- | -- | -- | -- | -- | -- | -- | UN |
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MOREK | OTH300-2 2xAl/Cu 70-300 mm² 800A Device terminal MAC2300A14 | SEE IT | MAC2300A14 | On Order | 50 | 82 | -- | Inne | -- | Nie | 63 | Direct mount | 800 | -- | 1 | -- | Yes | -- | -- | -- | 70..300 | Screw connection | -- | -- | Brak | NA | NO | NO | -- | UN | 70..300 | 70..240 | NA | 2 | -- | -- | -- | -- | -- | -- | -- | -- | UN |
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MOREK | OTH300-3 3xAl/Cu 70-300 mm² 1250A Device terminal MAC3300A14 | SEE IT | MAC3300A14 | On Order | 54 | 86 | -- | Inne | -- | Nie | 63 | Direct mount | 1250 | -- | 1 | -- | Yes | -- | -- | -- | 70..300 | Screw connection | -- | -- | Brak | NA | NO | NO | -- | UN | 70..300 | 70..240 | NA | 3 | -- | -- | -- | -- | -- | -- | -- | -- | UN |
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MOREK | OTL150 black color 1xAl/Cu 25-150mm² 1000V AC / 1500V DC Universal terminal MAA1150S10 | SEE IT | MAA1150S10 | On Order | 31 | 84 | 1500 | Black | -- | -- | 54 | DIN TH-35 mm mounting rail | 320 | -- | -- | -- | -- | 25..120 | 25..120 | UN | 25..150 | Screw connection | 1 | 2 | Thermoplastic material | V0 | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -25..80 |
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MOREK | OTL150 red color 1xAl/Cu 25-150mm² 1000V AC / 1500V DC Universal terminal MAA1150R10 | SEE IT | MAA1150R10 | On Order | 31 | 84 | 1500 | red | -- | -- | 54 | DIN TH-35 mm mounting rail | 320 | -- | -- | -- | -- | 25..120 | 25..120 | UN | 25..150 | Screw connection | 1 | 2 | Thermoplastic material | V0 | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -25..80 |
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MOREK | OTL150 blue color 1xAl/Cu 25-150mm² 1000V AC / 1500V DC Universal terminal MAA1150B10 | SEE IT | MAA1150B10 | On Order | 31 | 84 | 1500 | niebieski | -- | -- | 54 | DIN TH-35 mm mounting rail | 320 | -- | -- | -- | -- | 25..120 | 25..120 | UN | 25..150 | Screw connection | 1 | 2 | Thermoplastic material | V0 | NO | NO | Yes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -25..80 |
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MOREK | OL-PEN240-2 PEN connector configurable Al/Cu 2x95-240mm² MAJ5240S10 | SEE IT | MAJ5240S10 | On Order | 110 | 193 | 690 | Black | -- | -- | 86 | Direct mount | NA | -- | -- | -- | -- | 95..240 | 95..240 | NA | 95..240 | Screw connection | 1 | 5 | Thermoplastic material | V2 | NO | NO | NO | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OL-PEN 95 PEN connector configurable Al/Cu 25-95mm² MAJ4095S10 | SEE IT | MAJ4095S10 | On Order | 94 | 144 | 690 | Black | -- | -- | 55 | Direct mount | NA | -- | -- | -- | -- | 25..95 | 25..95 | NA | 25..95 | Screw connection | 1 | 5 | Thermoplastic material | V2 | NO | NO | NO | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ..80 |
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MOREK | OL185 Al/Cu 1x95-185mm² High-strength device clamp MAJ1185E10 | SEE IT | MAJ1185E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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MOREK | OL240-2 Al/Cu 2x95-240mm² High-strength device clamp MAJ2240E10 | SEE IT | MAJ2240E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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MOREK | OL240M Al/Cu 1x95-240mm² High-strength device clamp MAJ1240E10 | SEE IT | MAJ1240E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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MOREK | OL300 Al/Cu 1x185-300mm² High-strength device clamp MAJ1300E10 | SEE IT | MAJ1300E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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MOREK | OL300-2 Al/Cu 2x185-300mm² High-strength device clamp MAJ2300E10 | SEE IT | MAJ2300E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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MOREK | OL70 Al/Cu 1x6-70mm² High-strength device clamp MAJ1070E10 | SEE IT | MAJ1070E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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MOREK | OL70M Al/Cu 1x6-70mm² High-strength device clamp MAJ1071E10 | SEE IT | MAJ1071E10 | On Order | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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Distribution Blocks and Terminals: The Foundation of a Safe Installation
Ensuring Order and Safety in the Switchgear
At the heart of every modern electrical installation – be it in industry, automation, or residential construction – lies the switchgear. Its proper functioning depends on many elements, and distribution blocks and terminals constitute one of the most important pillars. Their main task is not only to ensure the effective distribution of electrical energy but, above all, to maintain order in the wiring and maximize the safety of use. They enable safe and precise connection of conductors powered from a single source, eliminating the need to connect several cables under one screw terminal, which is a potential source of failure.
Structure and Types of Distribution Blocks
A distribution block is a modular electrical accessory that consists of insulators, conductors (busbars), and terminals. They are most often mounted on a DIN rail (TH35) or on a mounting plate, which facilitates installation, servicing, and possible expansion. Depending on the needs and specifics of the installation, several types of blocks are distinguished:
- Modular blocks – multi-pole, dedicated mainly for mounting on a DIN rail, ideal for expanded systems.
- Compact blocks – most often single-pole, used for connecting conductors of different diameters.
- Feed-through blocks – allowing the connection of copper and aluminum conductors in one place.
They are available in various configurations, e.g., 1-pole, 4-pole, or dedicated N + PE (neutral and protective) strips, which ensure a reliable and separate grounding connection.
Terminals: Screw vs. Spring (Push-in) Connections
The method of fastening conductors in distribution blocks and terminal strips is crucial for durability and speed of assembly. Two basic types of terminals are most commonly used:
- Screw terminals (e.g., V-clamp type): They provide a high contact pressure, which translates into safety and low voltage drop. They require the tightening of a clamping screw, which ensures great connection durability. However, they are more time-consuming to install and require periodic checking for tightening, as the screw connection may loosen.
- Spring terminals (e.g., Push-in): Considered a future-proof solution due to a significant reduction in working time (up to 60-80%). The spring presses the conductor with the same force throughout the entire operation, which makes them resistant to vibrations and the problem of loosening. In the case of Push-in technology, installation is very quick and does not require the use of specialized tools, which is an advantage in control cabinets and domestic switchgear.
Key Advantages of Using Blocks and Terminals
Investing in high-quality distribution blocks and appropriate terminals brings tangible benefits:
- Installation organization: Elimination of tangled wires and aesthetic execution of the switchgear, which facilitates maintenance and possible expansions.
- Greater safety: Protection against accidental contact with live elements thanks to protective covers and the elimination of weak points (such as multiple terminals under one screw or wire ferrules as a source of failure).
- Ease of diagnostics: Organized wire infrastructure means that any faults are detected and removed more quickly.
- Modularity and flexibility: The ability to adapt to different conductor cross-sections and ease of expansion.
The correct selection of the distribution block, taking into account the current carrying capacity and the number of terminals, is crucial for the reliable and long-term operation of the entire electrical installation. Appropriate accessories guarantee the highest standards of safety and efficiency.