The Schneider Electric LRD line of Class 10 bimetallic overload relays are available up to 140 A. They are bimetallic ambient compensated and are available with or without single-phase sensitivity for phase unbalance and phase loss protection. New solid state overload relays are available for 90 to 150 A applications. Both bimetallic and solid-state overload relays include the following features:
• Isolated N.C. trip contact and N.O. alarm contacts.
• Manual or Automatic reset function (bi-metallic versions only).
• Tamper-resistant window for FLA settings.
• Test trip button.
Degree of protection : Conforms to VDE 0106
Protective treatment : Conforms to IEC 60068
Short-circuit protection : By gG, BS or Class CC fuse
Tripping Class : 10
Rated insulation voltage (Ui) : 690v
Rated impulse withstand voltage (Uimp) : 6
Temperature compensation : -20 -> +60C, -68 -> 140F
Tripping threshold : 1.14 ± 0.06 In
Sensitivity to phase failure : Tripping current 30% of In on one phase, the others at In
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