Siemens Overload Relay 3NO, 6.1 A, 18 A, 0.4 W, 24 V dc. Pole Configuration: 3P. Range: Sirius Innovation. Contact Voltage Rating: 690 V ac. Mounting Style: DIN Rail Mount. Series: 3RT2. Terminal Type: Spring Load. Length: 45mm. Width: 73mm. Depth: 69.5mm. MPN: 3RT2015-2HB42