nVent ERIFLEX Power Blocks are the main DIN mounted output/input devices for connection between primary and secondary switchboard, or main input/output connection for machine or industrial equipment (such as invertor, air conditioning machines, etc.). The high short circuit rated large cross section blocks offer time savings and reliability in every panel configuration. The complete Power Blocks range offers multiple connection types with up to four cables, nVent ERIFLEX Flexibar Advanced, or IBS/IBSB Advanced power braids.
Can be connected with round cross section cable or flat connection system like nVent ERIFLEX Flexibar or IBSB/IBSBR Power Braid
Compact power block with high short circuit current rating
Tinned copper or aluminum block allows for copper or aluminum conductor connections
Screw retaining cover is hinged and removable
Design allows for visual inspection of conductor and confirmation of connection
Modular snap-together blocks for building multi-pole power blocks
Easily clips onto DIN rail or mounts to panel with screws
Design Guideline for Distribution
Blocks, Power Blocks and Power Terminals
Derating according to Ambient*
Temperature (°F) to maintain working temperature of
Ambient Temperature (°F)
Derating Coefficient (d)
*environment around the terminal blocks
inside the enclosure
SBF250 is UL® 1953 Listed when used with SB250SPCR. Max Working Voltage for UL 1953 applications is 1250 VAC/DC.
nVent, nVent CADDY, nVent ERICO, nVent ERIFLEX, and nVent LENTON are owned by nVent or its global affiliates. All other trademarks are the property of their respective owners. nVent reserves the right to change specifications without prior notice.
UL, UR, cUL, cUR, cULus and cURus are registered certification marks of UL LLC.
nVent products shall be installed and used only as indicated in nVent's product instruction sheets and training materials. Instruction sheets are available at www.erico.com and from your nVent customer service representative. Improper installation, misuse, misapplication or other failure to completely follow nVent's instructions and warnings may cause product malfunction, property damage, serious bodily injury and death and/or void your warranty.