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Thermal Overload Relay
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Pertanyaan yang Sering Diajukan
Pertanyaan umum tentang Thermal Overload Relay dari 3G Electric.
How do I size a thermal overload relay for my motor?
Match the relay's current range to the motor's full-load amperage (FLA), typically setting the dial to the FLA value. Consider the motor's service factor and ambient temperature. For IEC applications, select a relay that covers the FLA within its adjustable range. Our team can help verify compatibility with your starter.
What is the difference between NEMA and IEC thermal overload relays?
NEMA relays are physically larger, more rugged, and often used in heavy-duty North American applications. IEC relays are more compact and cost-effective, suited for global equipment and panel space constraints. Both provide overload and phase-loss protection, but ensure your relay matches the starter's mounting and wiring scheme.
Which brands of thermal overload relays do you stock?
We supply thermal overload relays from Schneider, Siemens, Eaton (including Eaton Cutler-Hammer), GE, and Dayton. This range covers both NEMA and IEC types, ensuring compatibility with most motor starters. If you need a specific model, contact us with your part number for availability.