SKU: 35084885083

SF1 Phase Failure/Sequence Relay

$274.01 $304.46
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Oct 3 - Oct 8

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Description

SF1 Phase Failure/Sequence RelayPhase Failure Phase Sequence Monitor The Electro 11 pin plug in range of control and timing devices are to be installed into a standard 11 pin base making installation easy and convenient. The SF1 Monitors negative phase sequence (NPS) voltage to detect phase failure, phase reversal, and phase imbalance. The NPS voltage of the unit is fixed at 7%. When any of these faults occur the unit will de energize. The relay will only re energize if the supply

SF1 Phase Failure/Sequence Relay
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35084885083

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4.4 ★★★★★
Based on 1856 reviews
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Verified Purchase
bmo37
Charlottesville, US
★★★★★ 5
Used for my rv battery bank
Size: 4/0AWG, Color: 3ft Black + 3ft Red
Good quality used these for my battery bank on my rv solar setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
C
Verified Purchase
Chris M.
Omaha, US
★★★★★ 5
Top Shelf
Size: 4/0AWG, Color: 3ft Black + 3ft Red
QUALITY !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025
E
Verified Purchase
Erin
Draper, US
★★★★★ 5
Thick wires
Size: 4/0AWG, Color: 10ft Black + 10ft Red
Heavy duty for my solar set up. These wires are thick. I've never used such thick wires for anything. Now I know why they're so expensive. There was some weight to these wire too. The diameter is larger than a dime. These are some serious wire.
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Reviewed in the United States on December 25, 2025
O
Verified Purchase
OneShopStop88
Massapequa, US
★★★★★ 5
Monster cable
Size: 4/0AWG, Color: 3ft Black + 3ft Red
Well I now know what 4/0 or 0000 cable is. Huge but very easy to handle or bend to shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
B
Verified Purchase
bmo37
Port Orchard, US
★★★★★ 5
Used for my rv battery bank
Size: 4/0AWG, Color: 3ft Black + 3ft Red
Good quality used these for my battery bank on my rv solar setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025

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