• Siemens SIRIUS 3SE2 Safety Switches, Plastic, 52 mm
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Siemens SIRIUS 3SE2 Safety Switches, Plastic, 52 mm

Siemens SIRIUS 3SE2 Safety Switches, Plastic, 52 mm

SIRIUS 3SE22 mechanical safety switches with separate actuator in a 52 mm plastic enclosure, with lateral and front-end actuation, plus actuators.

Key features

  • Lateral and front-end actuation, 3 directions of approach
  • 1 NO + 2 NC or 1 NC slow-action contacts with positive opening
  • Minimum actuating force 5 N or 30 N, version with automatic ejection
  • Cable entry 3 x M20 x 1.5 or 3 x M16 x 1.5
  • Standard, radius, ball-locating and dust-protected actuators

Specifications

Brand Siemens
Product line SIRIUS 3SE22
Enclosure Plastic, special width 52 mm
Degree of protection IP67
Stroke 6 mm
Category Safety Switches
Source Siemens Catalog IC 10 · 2026, p. 1133
3SE2243-0XX40 Item: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: Minimum actuating force 5 N | Cable entry: 3 x (M20 x 1.5)
3SE2243-0XX Item: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: Minimum actuating force 30 N | Cable entry: 3 x (M20 x 1.5)
3SE2243-0XX30 Item: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: With automatic ejection | Cable entry: 3 x (M20 x 1.5)
3SE2257-6XX40 Item: Safety switch | Version: Slow-action contacts 1 NC | Operation: Minimum actuating force 5 N | Cable entry: 3 x (M20 x 1.5)
3SE2257-6XX Item: Safety switch | Version: Slow-action contacts 1 NC | Operation: Minimum actuating force 30 N | Cable entry: 3 x (M20 x 1.5)
3SE2243-0XX18 Item: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: Minimum actuating force 30 N | Cable entry: 3 x (M16 x 1.5)
3SX3218 Item: Actuators | Version: Standard, r min = 150 mm, length 28 mm | Operation: - | Cable entry: -
3SX3228 Item: Actuators | Version: Universal radius, r min = 45 mm, 34 mm | Operation: - | Cable entry: -
3SX3256 Item: Actuators | Version: Radius, adjustable radius, length 34 mm | Operation: - | Cable entry: -
3SX3217 Item: Actuators | Version: Ball locating, force adj. 100 N, 28 mm | Operation: - | Cable entry: -
3SX3234 Item: Actuators | Version: Length 34 mm, dust protection/slit cover | Operation: - | Cable entry: -
3SX3233 Item: Slit covers (spare part) | Version: - | Operation: - | Cable entry: -
Safety SwitchesSiemens
12 product codes available in this family
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Siemens SIRIUS 3SE2 Safety Switches, Plastic, 52 mm

Brand Siemens·Safety Switches

Available part numbers (12)

3SE2243-0XX40, 3SE2243-0XX, 3SE2243-0XX30, 3SE2257-6XX40, 3SE2257-6XX, 3SE2243-0XX18, 3SX3218, 3SX3228, 3SX3256, 3SX3217 + 2 more — see full table ↓

How to order

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Product codes & specifications
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Product codeSpec
3SE2243-0XX40Item: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: Minimum actuating force 5 N | Cable entry: 3 x (M20 x 1.5)
3SE2243-0XXItem: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: Minimum actuating force 30 N | Cable entry: 3 x (M20 x 1.5)
3SE2243-0XX30Item: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: With automatic ejection | Cable entry: 3 x (M20 x 1.5)
3SE2257-6XX40Item: Safety switch | Version: Slow-action contacts 1 NC | Operation: Minimum actuating force 5 N | Cable entry: 3 x (M20 x 1.5)
3SE2257-6XXItem: Safety switch | Version: Slow-action contacts 1 NC | Operation: Minimum actuating force 30 N | Cable entry: 3 x (M20 x 1.5)
3SE2243-0XX18Item: Safety switch | Version: Slow-action contacts 1 NO + 2 NC | Operation: Minimum actuating force 30 N | Cable entry: 3 x (M16 x 1.5)
3SX3218Item: Actuators | Version: Standard, r min = 150 mm, length 28 mm | Operation: - | Cable entry: -
3SX3228Item: Actuators | Version: Universal radius, r min = 45 mm, 34 mm | Operation: - | Cable entry: -
3SX3256Item: Actuators | Version: Radius, adjustable radius, length 34 mm | Operation: - | Cable entry: -
3SX3217Item: Actuators | Version: Ball locating, force adj. 100 N, 28 mm | Operation: - | Cable entry: -
3SX3234Item: Actuators | Version: Length 34 mm, dust protection/slit cover | Operation: - | Cable entry: -
3SX3233Item: Slit covers (spare part) | Version: - | Operation: - | Cable entry: -

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