CNC auxiliary Contactor Block 1. IEC 60947-4 ISO9001:2000, ISO14001:1996,CE 2. 20 years experience LA1-DN11 Auxiliary contact block time delay block:1. Model: LA1-DN112. Standard: IEC 60947-43. Self-cleaning,adopting the contacting function of sliding frictions4. Certoficate:ISO9001:2000, ISO14001:1996,CE