Eltako Indoor Light Fittings TDR 622259 - Eltako 23100800, The Eltako 23100800 TDR is a versatile timer relay that supports multiple voltage inputs ranging from 8 V to 230 V DC/AC. Manufactured by Eltako, it is designed for easy installation on a DIN rail. This product is typically used in industrial and automation applications for precise timing control. Eltako 23100800 TDR DIN Rail Multi-Function Timer Relay 8-230V DC/AC