The Spamel ŁK25R-2.8211OB2ZC switch is a three-pole 0-1 rotary isolator, designed for mounting in an OB2 enclosure, with a closed front section. It has a yellow-red front section and is intended for use in AC and DC circuits.

• Type: 0-1 rotary isolator
• Poles: 3
• Mounting: In an OB2 enclosure
• Front section: Closed, yellow-red
• Rated insulation voltage Ui: 690 V
• Rated impulse withstand voltage Uimp: 6 kV
• Rated continuous current Iu=Ith: 25 A
• Rated switching power Pe in AC-3: 7 kW (230 V), 13 kW (400 V), 14 kW (500 V), 14 kW (690 V)
• Rated switching power Pe in AC-4: 6 kW (230 V), 8 kW (400 V), 8 kW (500 V), 7 kW (690 V)
• Rated operational current Ie in AC-3: 25 A (230 V), 25 A (400 V), 22 A (500 V), 14 A (690 V)
• Rated operational current Ie in AC-4: 20 A (230 V), 16 A (400 V), 12 A (500 V), 8 A (690 V)
• Rated operational current Ie in DC-1: 8 A (110 V), 2.5 A (220 V)
• Rated operational current Ie in DC-21: 12 A (110 V), 3 A (220 V)
• Rated short-time withstand current Icw (1 s): 1 kA
• Rated short-circuit making capacity Icm: 1.4 kA
• Rated conditional short-circuit current: 13 kA
• Rated gG fuse: 25 A
• Mechanical endurance: 3 million switching cycles
• Operating temperature: -40 to +70 °C
• Storage temperature: -40 to +70 °C
• Connection cable cross-section: 2.5–6 mm²
• Panel protection rating: IP65 according to PN-EN 60529
• Vibration resistance: According to IEC 60068-2-6, 2–13 and 2–100 Hz, ±1 mm displacement amplitude and ±0.7 g acceleration amplitude
• Shock resistance: According to IEC 60068-2-27, maximum acceleration of 15 g and pulse duration of 11 ms
• Resistance to cyclic damp heat: According to IEC 60068-2-30, ambient temperature of 55 °C and relative humidity of 95%
• Resistance to cyclic salt mist: According to IEC 60068-2-52, test severity 1