D4NS Safety door switches Safety door switch with plastic housing The D4NS line-up includes three-contact models with 2NC/1NC and 3NC contact forms in addition to the previous contact forms, 1NC/1NO and 2NC. All models have a M20 conduit opening. • Line-up with three contacts: 2NC/1NC and 3NC contact forms • Line-up with two contacts 1NC/1NO and 2NC • Standardised gold-clad contacts for high contact reliability • Applicable for standard loads and micro loads Ordering information Switches (with approved direct opening contacts) Type Contact configuration Conduit opening/connector Order code 1-conduit Slow-action 1NC/1NO M20 D4NS-4AF 2NC M20 D4NS-4BF 2NC/1NO M20 D4NS-4CF 3NC M20 D4NS-4DF Slow-action MBB contact 1NC/1NO M20 D4NS-4EF 2NC/1NO M20 D4NS-4FF Operation keys (order separately) Type Order code Horizontal mounting D4DS-K1 Type Order code Adjustable mounting (horizontal) D4DS-K3 Vertical mounting D4DS-K2 Adjustable mounting (horizontal/vertical) D4DS-K5 Specifications Degree of protection IP67 (EN60947-5-1) (This applies for the switch only. The degree of protection for the key hole is IP00.) Durability *1 Mechanical 1,000,000 operations min. Electrical 500,000 operations min. for a resistive load of 3 A at 250 VAC 300,000 operations min. for a resistive load of 10 A at 250 VAC Operating speed 0.05 to 0.5 m/s Operating frequency 30 operations/minute max. Direct opening force *2 60 N min. Direct opening travel *2 10 mm min. Minimum applicable load Resistive load of 1 mA at 5 VDC (N-level reference value) Protection against electric shock Class II (double insulation) Pollution degree (operating environment) 3 (EN60947-5-1) Contact gap 2×2 mm min Conditional short-circuit current 100 A (EN60947-5-1) Rated open thermal current (Ith) 10 A (EN60947-5-1) Ambient temperature Operating: –30C to 70C with no icing *1 The durability is for an ambient temperature of 5C to 35C and an ambient humidity of 40 to 70%. For more details, consult your Omron representative. *2 These figures are minimum requirements for safe operation. Note: The above values are initial values. 452
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