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SBLT-250 Lug-to-Tunnel Power Terminal


  • Tinned copper block allows for copper or aluminum conductor connections
  • Accessible studs and tunnels allow for easy connection of nVent ERIFLEX Flexibar and other conductors
  • Design allows for visual inspection of conductor and confirmation of connection
  • Adjustable transparent cover
  • Modular snap-together blocks for building multi-pole power blocks
  • Easily clips onto DIN rail or mounts to panel with screws
  • SBLEC Power Terminals Fixing Accessory required for direct panel mount
  • Halogen free
  • RoHS compliant


Material: Copper; Thermoplastic
Finish: Tinned
Part Number SBLT-250
Article Number 561140
Max Current Rating, IEC 350 A
Max Current Rating, UL/CSA 300 A
Short Term Withstand Current (Icw) 1s 8.4 kA
Peak Short Circuit Current (Ipk) 30 kA
Short Circuit Current Rating (SCCR) 100 kA
Max Working Voltage, IEC (Ui) 1,000 VAC
1,500 VDC
Max Working Voltage, UL (Vin) 1,000 VAC/DC
Number of Stud Connections 1
Stud Connection Conductor Width 20 – 24 mm
Stud Connection Compact Stranded Wire Size 10 – 120 mm²
Stud Connection Wire Size #6 - 250 kcmil
Number of Tunnel Connections 2
Tunnel Connection Compact Stranded Wire Size (2) 10 – 50 mm²
Tunnel Connection Wire Size - Ferrule (2) 10 – 35 mm²
Tunnel Connection Wire Size (2) #8 – 1/0
Depth (D) 2.56"
Height (H) 8.1"
Width (W) 2.1"
A 4 1/4"
Unit Weight 0.6 lb
Certification Details UL® 1059
Flammability Rating UL® 94V-1
Complies With IEC® 60947-7-1
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 (°F) 86° 95° 104° 113° 122° 131° 140° 149° 158° 167°
Derating Coefficient (d) 1 1 1 0.94 0.88 0.82 0.75 0.67 0.58 0.47
*environment around the terminal blocks inside the enclosure
Power terminal connections are interchangeable and can be used as line side or load side connections.

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.

CSA, CSA-US and C-CSA-US are registered trademarks of Canadian Standards Association.
IEC is a registered trademark of the International Electrotechnical Commission.
UL, UR, cUL, cUR, cULus and cURus are registered certification marks of UL LLC.





EN 60947-7-1, 201 KB English
CSA 70044370
CSA C22.2 No. 158
cUR XCFR8.E198301
CSA C22.2 No. 158
UR XCFR2.E198301
ANSI/UL 1059

Instruction Sheets

SBLT250 / SBTT250
387 KB English