This Product Selection Guide contains information to help select products in the Power Distribution category on DigiKey.com
Power distribution terminal blocks are used for branching a single source of power to multiple circuits via push-in, screw connection, threaded stud or quick connect poles. Power distribution terminal blocks are differentiated by the number of poles, connections per pole, stud size, and voltage and current ratings.
SelectionCharacteristics
Type: Indicates the style and configuration of the device.
Number of Poles: Indicates the number of independent, isolated circuits a device is capable of accommodating or controlling simultaneously.
Line Side Connections Per Pole: Indicates the number of parallel connectors per circuit present on the side of the connector that is usually connected to a power source or “line”.
Load Side Connections Per Pole: Indicates the number of parallel connectors per circuit present on the side of the connector that is usually used to distribute power to one or more loads.
Line Side Connection Type: Describes the physical form factor of the electrical contacts typically connected to a power source or “line”.
Load Side Connection Type: Describes the physical form factor of the electrical contacts typically used to distribute power to one or more loads.
Line Side Wire/Stud Size: Indicates acceptable wire sizes or the terminal size that must be accommodated for the connectors on the side of the block usually connected to a power source or “line”.
Load Side Wire/Stud Size: Indicates acceptable wire sizes or the terminal size that must be accommodated for the connectors on the side of the block usually used to distribute power to one or more loads.
Voltage - Rated: Typically this represents the maximum voltage rating to which a device will meet its given specifications. Exceeding this voltage rating may damage the device and other system components.
Current Rating (Amps): Typically this represents the maximum current to which a device will meet its given specifications. Exceeding this current may damage the device and/or other system components.
ProductExamples
| MFR PART # | 2315256 |
|---|---|
| DIGIKEY PART # | 277-2005-ND |
| MANUFACTURER | Phoenix Contact |
| DESCRIPTION | 2 Pole Power Distribution Block 15 A 250 V |
| DATASHEET | Click Here |
| MFR PART # | LFS13003Z |
|---|---|
| DIGIKEY PART # | F11271-ND |
| MANUFACTURER | Littelfuse Inc. |
| DESCRIPTION | 3 Pole Power Splicer Terminal Block 115 A 600 V |
| DATASHEET | Click Here |
| MFR PART # | 11725-3 |
|---|---|
| DIGIKEY PART # | 283-3686-ND |
| MANUFACTURER | Eaton - Bussmann Electrical Division |
| DESCRIPTION | 3 Pole Power Distribution Block 70 A 600 V |
| DATASHEET | Click Here |
| MFR PART # | 1561100000 |
|---|---|
| DIGIKEY PART # | 281-1561100000-ND |
| MANUFACTURER | Weidmüller |
| DESCRIPTION | 1 Pole Power Distribution Block 85 A 1000 V |
| DATASHEET | Click Here |
| MFR PART # | 737 |
|---|---|
| DIGIKEY PART # | 1528-1520-ND |
| MANUFACTURER | Adafruit Industries LLC |
| DESCRIPTION | 1 Pole Power Distribution Block |
| DATASHEET | Click Here |