Key Specifications Parameter Specification Product Type Enclosed Limit Switch (Small, General-purpose) Actuator Type Roller plunger (12 mm dia. × 4.4 mm sintered stainless steel roller) Contact Form SPDT (Single Pole Double Throw) Switch Function On-Momentary Contact Rating (AC) 5 A at 250 VAC (resistive load) Contact Rating (DC) 4 A at 30 VDC (resistive load) Connection Method Pre-wired VCTF oil-resistant cable, 3 m length Cable Specifications 4 cores, 0.75 mm² conductor, φ7.6 mm outer diameter Degree of Protection IP67 (IEC 60529) - Dust tight, Waterproof Housing Material Metal case Indicator None (D4C-1202 does not include LED) Earth Terminal With earth wire (Class I protection against electric shock) Operating Characteristics Parameter Specification Operating Force (OF) 11.77 N max. (approx. 1200 gf) Release Force (RF) 4.41 N min. (approx. 450 gf) Pre-Travel (PT) 1.8 mm max. Over-Travel (OT) 3 mm min. Movement Differential (MD) 0.2 mm max. Operating Position (OP) 28.5 ± 1 mm Total Travel (TT) 4.8 mm (reference value) Permissible Operating Speed 0.1 mm/s to 0.5 m/s Permissible Operating Frequency Electrical: 30 operations/min max.; Mechanical: 120 operations/min max. Durability & Environmental Ratings Parameter Specification Electrical Durability 200,000 operations min. Mechanical Durability 10,000,000 operations min. Ambient Temperature (Operating) -10 to 70 °C (with no icing) Ambient Humidity (Operating) 35% to 95% Insulation Resistance 100 MΩ min. (at 500 VDC) Dielectric Strength Between terminals: 1,000 VAC for 1 min; Between terminal and ground: 1,500 VAC for 1 min Impulse Withstand Voltage 2.5 kV (between live metallic part and ground) Vibration Resistance (Malfunction) 10 to 55 Hz, 1.5 mm double amplitude Shock Resistance (Destruction) 1,000 m/s² max. Shock Resistance (Malfunction) 500 m/s² max. Contact Resistance (Initial) 300 mΩ max. Physical Characteristics Parameter Specification Body Dimensions (W x H x D) 40 mm × 17.4 mm × 67 mm Body Width 16 mm (slim type) Roller Diameter φ12 mm Mounting Hole Spacing 25 mm Mounting Type Chassis mount / Panel mount (front mounting) Cable Length 3 meters Weight Approx. 360 g