Specifications: Current Rating: 3A-250V AC. Initial Contact Resistance: 10 Milliohms (max.) @2.5V DC 1A. Insulation Resistance: 10 Megohms (min.) @ 500V DC. Dielectric Strength: 1500V AC 1 minute. Contact Material: Silver-Silver plated. Terminal Material: Silver plated Copper Alloy. Electrical Life: 20,000 cycles. Terminal Type: Solder. Mounting Hole: 0.500". Hardware: Nut, Washer