Schneider 3G-OTH-40551 — Technical Specifications

Name: Schneider 3G-OTH-40551 SCHNEIDER Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, TeSys Deca (18 to 38 Amp Models) (MPN LR3D21L). 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: No; Thermal Units Required: None (Relay Includes Integrated Bimetallic Elements); Compatible Contactors: TeSys Deca (18 to 38 Amp Models).
Brand: Schneider

The SCHNEIDER Overload Relay: Thermal Protection (MPN LR3D21L) is a 3-pole IEC thermal overload relay designed for use with TeSys Deca contactors (18 to 38 Amp models). It features integrated bimetallic elements, eliminating the need for separate thermal units, and provides 1NO/1NC auxiliary contacts with screw clamp terminals. The relay has a maximum voltage rating of 690V AC and does not include phase loss sensitivity.

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Technical Specifications

Parameter	Value
Type	1NO/1NC, TeSys Deca (18 to 38 Amp Models)
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	No
Thermal Units Required	None (Relay Includes Integrated Bimetallic Elements)
Manufacturer Part Number	LR3D21L
Terminal Connection Type	Screw Clamp Terminals
Compatible Contactor Series	TeSys Deca