Siemens 3G-OTH-41448 — Technical Specifications

Name: Siemens 3G-OTH-41448 SIEMENS Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Frame Size S00 (MPN 3RU21164AB0). Key specifications — Brand: SIEMENS; Auxiliary Contact Form: 1NO/1NC; Compatible Contactor Series: SIRIUS; Terminal Connection Type: Screw Terminals; Frame Size: S00; Maximum Voltage Rating: 690V AC; Phase Loss Sensitivity: No; Thermal Units Required: None (Relay Includes Integrated Bimetallic Elements).
Brand: Siemens

The SIEMENS Overload Relay is an IEC thermal overload relay with three poles and a 1NO/1NC auxiliary contact form, designed for Frame Size S00. It features a maximum voltage rating of 690V AC, screw terminals, and integrated bimetallic elements, eliminating the need for separate thermal units. This relay is compatible with SIRIUS contactors of Frame Size S00 and does not include phase loss sensitivity.

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Technical Specifications

Parameter	Value
Brand	SIEMENS
Frame Size	S00
Compatible Contactors	Frame Size S00
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	3RU21164AB0
Terminal Connection Type	Screw Terminals
Compatible Contactor Series	SIRIUS