Safety Interlock Switches D4BN D4B-N Rev. 11.12 Safety Limit Switch Snap-action contact with cer tified direct opening operation. Direct opening mechanism (NC contacts only) added to enable opening contacts when faults occur, such as fused contacts. Safety of lever settings ensured using a mechanism that engages a gear between the operating position indicator plate and the lever. Equipped with a mechanism that indicates the applicable operating zone, as well as push-button switching to control left and right motion. Head seal structure strengthened to improve seal proper ties (TV: IEC IP67, UL: NEMA 3, 4, 4X, 6P, and 13). Wide standard operating temperature range: 40 to 80C. Models with gold-plated contacts to enable handling microloads. Cer tified standards: UL, CSA, EN (TV), and CCC. S G Specifications UL/CSA (UL 508, CSA C22.2 No. 14) Standards and EC Directives A600 Conforms to the following EC Directives: Current (A) Volt-amperes (VA) Machiner y Directive Rated Carry voltage current Low Voltage Directive Make Break Make Break EN1088 120 VAC 60 6 EN50041 240 VAC 30 3 10 A 7,200 720 Certified Standards 480 VAC 15 1.5 Certification 600 VAC 12 1.2 Standard File No. body EN60947-5-1 (cer tified direct Ratings J9851083 opening mechanism) GS-ET-15 Non-inductive load (A) Inductive load (A) TV Rheinland Rated Resistive Lamp Inductive Motor EN60947-5-1 voltage load load load load (uncer tified direct opening J50005477 * mechanism) NC NO NC NO NC NO NC NO UL UL508 E76675 125 VAC 10 3 1.5 10 5 2.5 250 10 2 1 10 3 1.5 CSA C22.2 No. 14 LR45746 400 10 1.5 0.8 3 1.5 0.8 CQC (CCC) GB14048.5 2003010305077612 8 VDC 10 6 3 10 6 *Adjustable roller lever, adjustable rod lever, coil spring, and plastic rod 14 10 6 3 10 6 models only. 30 6 4 3 6 4 125 0.8 0.2 0.2 0.8 0.2 250 0.4 0.1 0.1 0.4 0.1 Certified Standard Ratings Notes: 1. The above values are continuous currents. TV (EN 60947-5-1), CCC (GB14048.5) 2. Inductive loads have a power factor of 0.4 or higher (AC) or a time constant of 7 ms or lower (DC). Item Utilization category AC-15 3. Lamp loads have a inrush current of 10 times the nor mal current. Rated operating current (Ie) 2 A 4. Motor loads have a inrush current of 6 times the nor mal current. Rated operating voltage (Ue) 400 V Note: Use a 10 A fuse type gI or gG that confor ms to IEC 60269 as a shor t-circuit protection device. Omr On Scientific technOlOGieS, inc. USA Tel. 1/888/510-4357 canada Tel. 1/866/986-6766 www.sti.com G148D4B-N Safety Interlock Switches Connections Contact Form Model Contact Contact form Operating pattern Remarks Only NC contact 11-12 has a certified direct opening Za 11-12 mechanism. 13 14 ON 1NC/1NO 13-14 D4B-1N (Snap-action) Terminal numbers 11-12 and 11 12 Stroke 13-14 cannot be used as unlike poles. Only NC contact 11-12 has a Zb certified direct opening 11-12 mechanism. 11 12 ON 1NC/1NO 23-24 D4B-5N (Slow-action) Terminal numbers 11-12 or Stroke 23 24 23-24 can be used as unlike poles. Both NC contacts 11-12 and 21-22 have a certified direct Zb 11-12 opening mechanism. 11 12 ON 2NC 21-22 D4B-AN (Slow-action) Terminal numbers 11-12 and Stroke 21-22 can be used as unlike 21 22 poles. Note: Ter minal numbers are according to EN50013 contact symbols are according to IEC60947-5-1. G Omr On Scientific technOlOgieS, inc. USA Tel. 1/888/510-4357 canada Tel. 1/866/986-6766 www.sti.com G149