Key Specifications Parameter Specification Product Type Enclosed Limit Switch (Small, General-purpose) Actuator Type Plastic Rod (Spring Rod) 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, 7.6 mm outer diameter Degree of Protection IP67 (IEC 60529) Housing Material Metal Indicator No indicator (D4C-1250 is without LED) Earth Terminal With earth wire Electrical Ratings (Detailed) Load Type Rated Current at 125 VAC Rated Current at 250 VAC Resistive load 5 A 5 A Inductive load 3 A 2 A Lamp load (NC) 1.5 A 1 A Lamp load (NO) 1.5 A 0.5 A Motor load (NC) 2.5 A 1.5 A Motor load (NO) 1.3 A 0.8 A Load Type Rated Current at 30 VDC Rated Current at 125 VDC Rated Current at 250 VDC Resistive load 4 A 0.4 A 0.2 A Inductive load (NC) 3 A 0.4 A 0.2 A Inductive load (NO) 3 A 0.4 A 0.2 A Lamp load 2 A 0.05 A 0.03 A Motor load 3 A 0.05 A 0.03 A Operating Characteristics Parameter Specification Operating Force (OF) 1.47 N max. (approx. 150 gf) Pre-Travel (PT) 15° max. (standard value) Operating Position (OP) - Movement Differential (MD) - Over-Travel (OT) - Total Travel (TT) - Permissible Operating Speed - Permissible Operating Frequency Electrical: 30 operations/min max.; Mechanical: 120 operations/min max. Durability & Environmental Ratings Parameter Specification Electrical Durability 200,000 operations min. (at 5A 125VAC resistive load) 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 metal part and ground) Vibration Resistance (Malfunction) - Shock Resistance (Destruction) 1,000 m/s² max. Contact Resistance (Initial) 300 mΩ max. Physical Characteristics Parameter Specification Housing Material Metal Body Dimensions (W x H x D) 40 mm x 17.4 mm (H) x 73 mm (D) (approx.) Body Width 16 mm (slim type) Mounting Hole Spacing 25 mm Mounting Type Panel mount (front mounting) Mounting Hole Quantity 2 Weight Approx. 348 g (including cable)