Siemens OFF-Delay Single Timer Relay, Screw, 0.05 → 600 s, 1 → 20 s, SPDT, 1 Contacts, SPDT. Supply Voltage: Maximum of 24 V ac/dc. Mounting Type: DIN Rail. Series: 3RP25. Time Increment: Seconds. Power Supply: External. Current Maximum: 3 A. Maximum Voltage: 24 V ac/dc. Length: 22.5mm. MPN: 3RP2540-1AB30