4-channel blocking element, Safety-related, SIL 4/Cat.4 The module is TÜV tested according to DIN V 19250 for RC 1...7, according to IEC 61508 for SIL 4 and EN 954-1 for Cat 4. Switching time : direct output approx. 20 ms, inverted output approx. 3 ms Reset time : direct output approx. 3 ms, inverted output approx. 15ms Operating data : 24 V DC / 85 mA Space requirement : 3 U high, 4 SU Type : 42 400 Make : HIMA, Germany Condition : New, factory sealed Note: 1. Datasheet available upon request. 2. Contact the seller to confirm stock status.