The Spamel SK20-2.8211OB11 is an On-Off switch with a rated operational voltage of up to 690 V and a rated current of 25 A. It supports an operational current of 20 A in utilization categories AC-21A and AC-22A, with different power ratings depending on the voltage and utilization category.

• Rated operational voltage: up to 690 V
• Rated impulse withstand voltage: 6 kV
• Rated current: 25 A
• Operational current AC-21A and AC-22A: 20 A at 230/400/500/690 V
• Power AC-23A: 3.5 kW at 230 V, 6 kW at 400 V, 7.5 kW at 500 V, 10 kW at 690 V
• Power AC-3: 2.5 kW at 230 V, 4 kW at 400 V, 5 kW at 500 V, 7.5 kW at 690 V
• Operational current DC-21A: 20 A at 24 V, 10 A at 110 V, 8 A at 220 V
• Short-time withstand current Icw (1 s): 0.25 kA
• Maximum peak current Icm: 0.34 kA
• Short-circuit current: 10 kA
• gG fuse: 20 A
• Conductor cross-section: 1–4 mm²
• Tightening torque: 0.5 Nm
• Mounting: 31/□36
• Mechanical endurance: 3.0 million switching cycles
• Operating temperature: -40 to +70 °C
• Storage temperature: -40 to +70 °C
• Degree of protection: IP65
• Vibration resistance IEC 60068-2-6: 2–13 and 2–100 Hz, ±1 mm, ±0.7 g
• Shock resistance IEC 60068-2-27: 15 g, 11 ms
• Damp heat resistance IEC 60068-2-30: 55 °C, 95% relative humidity
• Salt mist resistance IEC 60068-2-52: test severity 1