⚡ TeSys LR

TeSys LR refers to Schneider Electric’s family of thermal overload relays designed to provide motor overload protection when paired with TeSys contactors (LC1‑K, LC1‑D, LC1‑G, etc.).
They protect motors against overcurrent, phase loss, and stall conditions, ensuring safe and reliable operation.

TeSys LR relays are the classic, widely used overload relays that integrate directly with TeSys contactors to form complete motor starters.

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🔧 Key Points

• Thermal overload protection — protects motors from overheating due to overloads.
• Phase‑loss sensitivity — trips quickly on single‑phasing.
• Manual/automatic reset — selectable depending on application.
• Trip indicator — clear visual status.
• Direct mounting — snaps onto TeSys contactors for compact starters.
• Test button — easy functional testing.
• Auxiliary contacts — for signalling and control‑circuit interlocking.
• Wide adjustment range — covers multiple motor ratings with one relay.

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🧩 Where TeSys LR Fits in Motor Control

TeSys LR relays are used with:

• TeSys LC1‑K — small motors
• TeSys LC1‑D — general‑purpose motors
• TeSys LC1‑G — heavy-duty high‑power motors

Together, they form:

• DOL starters
• Reversing starters
• Star‑delta starters

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🏭 Typical Applications

• Pumps & fans
• Compressors
• Conveyors
• Machine tools
• General industrial automation

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⭐ One‑line summary

TeSys LR overload relays provide reliable, adjustable thermal protection for motors, forming compact, coordinated motor starters when paired with TeSys contactors.