• Siemens SIRIUS 3SE5 Open-Type Position Switches, 30 mm (IP20)
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Siemens SIRIUS 3SE5 Open-Type Position Switches, 30 mm (IP20)

Siemens SIRIUS 3SE5 Open-Type Position Switches, 30 mm (IP20)

SIRIUS 3SE525 open-type position switches, enclosure width 30 mm, degree of protection IP20, with matching contact blocks.

Key features

  • Open-type design for installation inside machines and enclosures
  • Metal plungers with slow-action or snap-action contacts
  • 2 or 3 contacts, positive opening NC contacts
  • Empty enclosure and 3SE5050 contact blocks available separately

Specifications

Brand Siemens
Product line SIRIUS 3SE525 open-type
Enclosure Plastic, width 30 mm
Degree of protection IP20 (2 contacts), IP10 (3 contacts)
Mounting EN 50047 operating points
Category Position Switches
Source Siemens Catalog IC 10 · 2026, p. 1119
3SE5250-0BC05 Actuator: Metal plungers | Contacts: 1 NO + 1 NC, slow-action | Variant: Standard
3SE5250-0KC05 Actuator: Metal plungers | Contacts: 1 NO + 2 NC, slow-action | Variant: Standard
3SE5250-0PC05 Actuator: Metal plungers | Contacts: 2 NO + 1 NC, slow-action | Variant: Standard
3SE5250-0MC05 Actuator: Metal plungers | Contacts: 1 NO + 2 NC, slow-action | Variant: Make-before-break
3SE5250-0CC05 Actuator: Metal plungers | Contacts: 1 NO + 1 NC, snap-action | Variant: Standard
3SE5250-0LC05 Actuator: Metal plungers | Contacts: 1 NO + 2 NC, snap-action | Variant: Standard
3SE5250-0AC05 Actuator: Metal plungers | Contacts: No contact block | Variant: Empty enclosure
3SE5050-0BA00 Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, slow-action | Variant: Standard
3SE5050-0CA00 Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, snap-action | Variant: Standard
3SE5050-0GA00 Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, snap-action | Variant: Contact distance 2 x 2 mm
3SE5050-0NA00 Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, snap-action | Variant: Short stroke
Position SwitchesSiemens
11 product codes available in this family
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Siemens SIRIUS 3SE5 Open-Type Position Switches, 30 mm (IP20)

Brand Siemens·Position Switches

Available part numbers (11)

3SE5250-0BC05, 3SE5250-0KC05, 3SE5250-0PC05, 3SE5250-0MC05, 3SE5250-0CC05, 3SE5250-0LC05, 3SE5250-0AC05, 3SE5050-0BA00, 3SE5050-0CA00, 3SE5050-0GA00 + 1 more — see full table ↓

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Product codes & specifications
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Product codeSpec
3SE5250-0BC05Actuator: Metal plungers | Contacts: 1 NO + 1 NC, slow-action | Variant: Standard
3SE5250-0KC05Actuator: Metal plungers | Contacts: 1 NO + 2 NC, slow-action | Variant: Standard
3SE5250-0PC05Actuator: Metal plungers | Contacts: 2 NO + 1 NC, slow-action | Variant: Standard
3SE5250-0MC05Actuator: Metal plungers | Contacts: 1 NO + 2 NC, slow-action | Variant: Make-before-break
3SE5250-0CC05Actuator: Metal plungers | Contacts: 1 NO + 1 NC, snap-action | Variant: Standard
3SE5250-0LC05Actuator: Metal plungers | Contacts: 1 NO + 2 NC, snap-action | Variant: Standard
3SE5250-0AC05Actuator: Metal plungers | Contacts: No contact block | Variant: Empty enclosure
3SE5050-0BA00Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, slow-action | Variant: Standard
3SE5050-0CA00Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, snap-action | Variant: Standard
3SE5050-0GA00Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, snap-action | Variant: Contact distance 2 x 2 mm
3SE5050-0NA00Actuator: Contact block with 2 contacts | Contacts: 1 NO + 1 NC, snap-action | Variant: Short stroke

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