Follow-up relay module with potential-free changeover contact in surface-mounted housing. Input signal: normally open, operating voltage: 12V DC, 60mA. Relay can be switched to NO or NC. Relay switching capacity: max. 10A at 24V AC/DC. Switching time: 1 to 9 seconds, adjustable via potentiometer. Original module from TF04 set. Housing dimensions: 85 x 58 x 33mm.