High precision flexible leaf snap-action mechanism

Operation without balance-point, even at extremely slow actuating speed

Broad range of operating forces from 0.15 N to 5 N

Contact gap less or greater than 3 mm (micro-disconnection (µ) or full disconnection)

Operating temperature from -60 °C up to +150 °C - High resistance to shock and vibration

Mechanical life up to 50 million cycles

ENEC and cURus approved

Wide choice of actuators on 4 possible fixing positions (pre-assembled or retrofittable)

Moving blade: silver-plated beryllium copper

Contacts: silver alloy, micro-profile (831612: silver cadmium oxide)

Terminals: brass (except W2: copper nickel)

Levers: stainless steel or polyamide, polyamide roller

Nuts for 161L: nickel-plated brass

Degree of protection: IP40 (mechanism)

Proof tracking index: PTI 250

Protection against electric shock: button and actuators have reinforced insulation for Ui 250V/Uimp 2,5kV / pollution 2

Recommended min actuating speed: 0.001 mm/s

Special levers: special shapes and lengths, flexible levers, adjustable, pinned

Special connections: angled, with 7mm spacing (RAST 7-W3R7), for PCB

Special contacts (for gold plated contacts: see “V3 Dual-current - 83161”)

Reduced or increased switching hysteresis: max 0.1 mm to max 0.8 mm differential travel

Specific operating force easily achievable

Telescopic plunger and adjustable fixing by threaded barrel: plastic version (161L accessory) or metal version (SP9603)

Housing material complying with IEC 60335-1 for unattended appliances: GWFI 850° C / GWIT 775° C (SP9680)

Approx body size (mm): 28x16x10

Rating (max): 20A / 250Vac

Degree of protection: IP40

Operating temperature: -60°C/+150°C

Operating force (max): 0.15 –> 5 N

Differential travel (max): 0.35 mm / 0.8 mm

Overtravel (min): 1.2 mm

Mechanical life (cycles): 50 M