The Spamel Ms1309 microswitch with plunger and roller features adjustable operating position and a switching capacity of 15 A. Its operation is characterised by high accuracy and a switching speed range from 0.01 mm to 1 m/s.

• Type: Snap-action
• Actuator: Plunger and roller
• Adjustable operating position: Yes
• Switching capacity: 15 A
• Accuracy: High
• Switching speed: 0.01 mm–1 m/s
• Operating temperature: -25 to +80 °C (normal use, without ice)
• Insulation resistance: At least 100 MΩ at 500 VDC
• Contact resistance: Up to 15 mΩ (initial value)
• Switching frequency: Mechanical: 240 operations/min; electrical: 20 operations/min
• Shock resistance: 1000 m/s² (approximately 100 G); malfunction at 300 m/s² (approximately 30 G)
• Vibration resistance: 10–55 Hz, double amplitude of 1.5 mm
• Operating humidity: Up to 85% relative humidity
• Mechanical durability: 20,000,000 operations/min
• Electrical durability: 500,000 operations/min
• Dielectric strength: 1000 VAC, 50/60 Hz for 1 minute between terminals of the same polarity; 1500 VAC, 50/60 Hz for 1 minute between each terminal and ground
• Maximum operating force: 350 g
• Minimum release force: 114 g
• Maximum pretravel: 0.4 mm
• Minimum overtravel: 3.58 mm
• Maximum differential travel: 0.05 mm
• Operating position: 33.4 ± 1.2