General-purpose Limit Switch D4A- N The Limit Switch with Better Seal, Shock Resistance, and Strength A double seal on the head, a complete gasket cover, and other features ensure a better seal (meets UL NEMA 3, 4, 4X, 6P, 12, 13). Block mounting method to reduce weight to 290 g. Block mounting method also reduces downtime for mainte- nance. Wide standard operating temperature range: 40C to 100C (standard type). Models with fluoro-rubber available for greater resistance to chemicals. DPDT, double-break models available for complex operations. Approved by UL, CSA, and CCC (Chinese standard). Model Number Structure Model Number Legend D4A- N 1 2 3 1. Receptacle Box 3. Head 1: 1/2-14 NPT conduit (SPDT, double-break) 01: Roller lever, standard 02: Roller lever, high-sensitivity 2: 1/2-14 NPT conduit (DPDT, double-break) 3: G 1/2 conduit (SPDT, double-break) 03: Roller lever, low torque 4: G 1/2 conduit (DPDT, double-break) 04: Roller lever, high-sensitivity, low torque 05: Roller lever, maintained 2. Switch Box 1: SPDT, double-break, without indicator 17: Roller lever, sequential operation 3: SPDT, double-break, neon lamp 18: Roller lever, center neutral operation 06: Side plunger, standard E: SPDT, double-break, LED (24 VDC, leakage current: 1.3 mA) 07-V: Side plunger, vertical roller 5: DPDT, double-break, simultaneous operation, without indi- 07-H: Side plunger, horizontal roller cator 08: Side plunger, adjustable 7: DPDT, double-break, sequential operation, without indicator 09: Top plunger, standard (See note 1.) 10: Top plunger, roller 9: DPDT, double-break, center neutral operation, without indi- 11: Top plunger, adjustable cator (See note 2.) 12: Flexible rod, spring wire L: DPDT, double-break, simultaneous operation, neon lamp 14: Flexible rod, plastic rod P: DPDT, double-break, simultaneous operation, LED 15: Flexible rod, cat whisker 16: Flexible rod, coil spring Note: 1. Use the D4A-0017N Special Head. 2. Use the D4A-0018N Special Head. 3. Fluoro-rubber sealed type is also available. 74 General-purpose Limit Switch D4A- NOrdering Information List of Models SPDT, Double-break Switches Receptacle box G 1/2 Conduit Indicator Without indicator With neon lamp indicator With LED indicator (DC) (AC) Actuator Model Approved Model Approved Model standards standards Roller lever Standard D4A-3101N UL, CSA D4A-3301N UL, CSA D4A-3E01N (See note 1.) High-sensitivity D4A-3102N UL, CSA D4A-3302N UL, CSA D4A-3E02N Low-torque D4A-3103N UL, CSA --- UL, CSA --- High-sensitivity, Low- D4A-3104N UL, CSA D4A-3304N UL, CSA --- torque Maintained D4A-3105N UL, CSA D4A-3305N UL, CSA D4A-3E05N (See note 2.) Side plunger Standard D4A-3106N UL, CSA --- UL, CSA --- Vertical roller D4A-3107-VN UL, CSA D4A-3307-VN UL, CSA D4A-3E07-VN Horizontal roller D4A-3107-HN UL, CSA D4A-3307-HN UL, CSA --- Adjustable D4A-3108N UL, CSA D4A-3308N UL, CSA D4A-3E08N Top plunger Standard D4A-3109N UL, CSA D4A-3309N UL, CSA --- Roller D4A-3110N UL, CSA D4A-3310N UL, CSA --- Adjustable D4A-3111N UL, CSA D4A-3311N UL, CSA --- Flexible rod Spring wire D4A-3112N UL, CSA D4A-3312N UL, CSA D4A-3E12N Plastic rod D4A-3114N UL, CSA D4A-3314N UL, CSA D4A-3E14N Cat whisker D4A-3115N UL, CSA D4A-3315N UL, CSA D4A-3E15N Coil spring D4A-3116N UL, CSA D4A-3316N UL, CSA D4A-3E16N Note: 1. The lever is not included with the Roller Level Models. Select the lever from those listed in this data sheet and order it separately (refer to Levers on pages 92 and 93). 2. The Maintained Switches have a lock mechanism for the switch operation and thus use a Fork Lever Lock. 3. Switches are also available with 1/2-14 NPT conduits. The model numbers correspond as follows: G 1/2 Conduits 1/2-14 NPT Conduits D4A-3 N D4A-1 N D4A-4 N D4A-2 N 4. Switches are also available with fluoro-rubber seals for higher resistance to chemicals. (The operating temperature range for these Switches, however, is 10 to 120C.) Add -F to the model number. (Example: D4A-3101N becomes D4A-3101N-F.) Ask your nearest OMRON representative for details. General-purpose Limit Switch D4A- N 75