Schneider 3G-OTH-40578 — Technical Specifications

Name: Schneider 3G-OTH-40578 SCHNEIDER Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Phase Loss Sensitivity, 12 A – 18 A (MPN LRD21L). Key specifications — Brand: SCHNEIDER; Auxiliary Contact Form: 1NO/1NC; Compatible Contactor Series: TeSys Deca; Terminal Connection Type: Screw Clamp Terminals; Maximum Voltage Rating: 690V AC; Phase Loss Sensitivity: Yes; Thermal Units Required: None (Relay Includes Integrated Bimetallic Elements); Compatible Contactors: TeSys Deca (18 to 38 Amp Models).
Brand: Schneider

The SCHNEIDER LRD21L is an IEC thermal overload relay with integrated bimetallic elements, rated for 12 A to 18 A and a maximum voltage of 690V AC. It features 1NO/1NC auxiliary contacts, screw clamp terminals, and phase loss sensitivity. This relay is compatible with TeSys Deca contactors (18 to 38 Amp models) and requires no external thermal units.

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Technical Specifications

Parameter	Value
Type	1NO/1NC, Phase Loss Sensitivity, 12 A – 18 A
Brand	SCHNEIDER
Poles	3
Compatible Contactors	TeSys Deca (18 to 38 Amp Models)
Auxiliary Contact Form	1NO/1NC
Maximum Voltage Rating	690V AC
Phase Loss Sensitivity	Yes
Thermal Units Required	None (Relay Includes Integrated Bimetallic Elements)
Manufacturer Part Number	LRD21L
Terminal Connection Type	Screw Clamp Terminals
Compatible Contactor Series	TeSys Deca