ERICO 561171 Data Sheet
Power Block–SBF250 (561171)
H
W
D
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 Advanced or IBS/IBSB
Advanced Insulated Braided Conductor
• Compact power block with high short circuit current rating
• Tinned copper or aluminum block allows for copper or aluminum conductor direct connections, or using ferrule
• 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
• Voltage detection and measurement connection
• 95% fill ratio
• Halogen free
• RoHS compliant
Part Number SBF250
Article Number 561171
Finish Tinned
Type Flexibar-Cable
Typical Application Current Rating, UL 255 A
Material Copper
Thermoplastic
Line Side Max Conductor Size, UL 70 mm²
Load Side Max Conductor Size, UL 250 kcmil
Max Current Rating, Insulated Power Braid, IEC 330 A
Max Current Rating, nVent ERIFLEX Flexibar, IEC 380 A
Max Current Rating, UL/CSA 255 A
Peak Short Circuit Current (Ipk) 42 kA
Short Circuit Current Rating (SCCR) 100 kA
Part Number SBF250
Max Working Voltage, IEC (Ui) 1,000 VAC
1,500 VDC
Max Working Voltage, UL (Vin) 1,000 VAC/DC
Line Side Number of Connections 1
Line Side Insulated Power Braid Cross Section 50 mm²
70 mm²
Line Side nVent ERIFLEX Flexibar Size 2X20X1 - 5X20X1
Load Side Compact Stranded Wire Size 35 - 120 mm²
Load Side Number of Connections 1
Load Side Stranded Wire Size - Ferrule 35 - 120 mm²
Load Side Wire Size #6 - 250 kcmil
Depth (D) 2.28"
Height (H) 4.37"
Width (W) 1 1/4"
Unit Weight 0.6 lb
Certification Details UL® 1059
Complies With IEC® 60947-7-1
Enclosure Rating IP 20
Flammability Rating UL® 94V-0
Certifications CE, ERIFLEX SB
RoHS
UL
UR
Standard Packaging Quantity 1 pc
UPC 78285694004
EAN-13 0782856940043
Design Guideline for Distribution Blocks, Power Blocks and Power Terminals
Derating according to Ambient* Temperature (°F) to maintain working temperature of 185°F
Ambient
Temperature
86° 95° 104° 113° 122° 131° 140° 149° 158° 167°
(°F)
Derating
Coefficient
1 1 1 0.94 0.88 0.82 0.75 0.67 0.58 0.47
(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.
IEC is a registered trademark of the International Electrotechnical Commission. UL, UR, cUL, cUR, cULus and cURus are registered certification marks of UL LLC.
WARNING
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.
© 2019nVentAll rights reserved
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.
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