The Siemens 3SE3120-3R is part of the 3SE3 series of heavy-duty industrial limit switches. These switches feature cast aluminum housings, making them suitable for extreme conditions. The 3SE3 series is known for its compact structure, reliable performance, and flexible operation.

Rated insulation voltage: 500V AC / 600V DC

Rated thermal current: 10A

Rated operational current:

AC (40-60 Hz): 10A at 24V, 6A at 230V, 3A at 500V

DC: 10A at 24V, 4A at 110V, 0.2A at 440V

Short circuit protection: HRC fuse (10A)

Mechanical endurance: 30 million switching cycles

Electrical endurance: 30 million switching cycles with 3TH / 3TF contactors

Switching frequency: 6,000 cycles per hour

Ambient temperature range: -40°C to +80°C

Degree of protection: IP40 (switching chamber), IP00 (terminal)

Conductor size: Supports ring/fork-type lug with 2x2.5mm² stranded cable

Mounting position: Any