• Siemens SIRIUS ACT 3SU1400 Contact Modules (Front, Base, PCB)
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Siemens SIRIUS ACT 3SU1400 Contact Modules (Front, Base, PCB)

Siemens SIRIUS ACT 3SU1400 Contact Modules (Front, Base, PCB)

SIRIUS ACT 3SU1400 contact modules with slow-action NO/NC contacts for front plate mounting on holders, base mounting in 3SU18 enclosures or PCB mounting.

Key features

  • High contact reliability down to 5 V / 1 mA
  • Silver alloy or gold-plated contacts
  • Positively driven NC contacts (IEC 60947-5-1 Annex K)
  • Versions with leading NO / lagging NC and with installation supervision
  • Screw, spring-loaded or socket (THT) terminals
  • Terminal designations to EN 50013

Specifications

Brand Siemens
Product line SIRIUS ACT 3SU1
Device type Contact module
Contact type Slow-action
System SIRIUS ACT modular system
Source Siemens Catalog IC 10 · 2026, p. 1288-1292
3SU1400-1AA10-1BA0 Mounting: Front plate | Contacts: 1 NO | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1CA0 Mounting: Front plate | Contacts: 1 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1HA0 Mounting: Front plate | Contacts: 1 NC | Switching: Installation supervision | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1DA0 Mounting: Front plate | Contacts: 2 NO | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1EA0 Mounting: Front plate | Contacts: 2 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1FA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1GA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1LA0 Mounting: Front plate | Contacts: 1 NO | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1MA0 Mounting: Front plate | Contacts: 1 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1NA0 Mounting: Front plate | Contacts: 2 NO | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1PA0 Mounting: Front plate | Contacts: 2 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1QA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1RA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-3BA0 Mounting: Front plate | Contacts: 1 NO | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3CA0 Mounting: Front plate | Contacts: 1 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3HA0 Mounting: Front plate | Contacts: 1 NC | Switching: Installation supervision | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3DA0 Mounting: Front plate | Contacts: 2 NO | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3EA0 Mounting: Front plate | Contacts: 2 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3FA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3GA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3LA0 Mounting: Front plate | Contacts: 1 NO | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3MA0 Mounting: Front plate | Contacts: 1 NC | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3NA0 Mounting: Front plate | Contacts: 2 NO | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3PA0 Mounting: Front plate | Contacts: 2 NC | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3QA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3RA0 Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-2AA10-1BA0 Mounting: Base | Contacts: 1 NO | Contact material: Silver alloy | Connection: Screw
3SU1400-2AA10-1CA0 Mounting: Base | Contacts: 1 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-2AA10-1LA0 Mounting: Base | Contacts: 1 NO | Contact material: Gold-plated | Connection: Screw
3SU1400-2AA10-1MA0 Mounting: Base | Contacts: 1 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-2AA10-3BA0 Mounting: Base | Contacts: 1 NO | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-2AA10-3CA0 Mounting: Base | Contacts: 1 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-2AA10-3LA0 Mounting: Base | Contacts: 1 NO | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-3AA10-5BA0 Mounting: PCB | Contacts: 1 NO | Contact material: Silver alloy | Connection: Socket (THT)
3SU1400-3AA10-5CA0 Mounting: PCB | Contacts: 1 NC | Contact material: Silver alloy | Connection: Socket (THT)
Pushbuttons & Pilot LightsSiemens
35 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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Siemens SIRIUS ACT 3SU1400 Contact Modules (Front, Base, PCB)

Brand Siemens·Pushbuttons & Pilot Lights

Available part numbers (35)

3SU1400-1AA10-1BA0, 3SU1400-1AA10-1CA0, 3SU1400-1AA10-1HA0, 3SU1400-1AA10-1DA0, 3SU1400-1AA10-1EA0, 3SU1400-1AA10-1FA0, 3SU1400-1AA10-1GA0, 3SU1400-1AA10-1LA0, 3SU1400-1AA10-1MA0, 3SU1400-1AA10-1NA0 + 25 more — see full table ↓

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Product codes & specifications
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Product codeSpec
3SU1400-1AA10-1BA0Mounting: Front plate | Contacts: 1 NO | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1CA0Mounting: Front plate | Contacts: 1 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1HA0Mounting: Front plate | Contacts: 1 NC | Switching: Installation supervision | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1DA0Mounting: Front plate | Contacts: 2 NO | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1EA0Mounting: Front plate | Contacts: 2 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1FA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1GA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Silver alloy | Connection: Screw
3SU1400-1AA10-1LA0Mounting: Front plate | Contacts: 1 NO | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1MA0Mounting: Front plate | Contacts: 1 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1NA0Mounting: Front plate | Contacts: 2 NO | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1PA0Mounting: Front plate | Contacts: 2 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1QA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-1RA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Gold-plated | Connection: Screw
3SU1400-1AA10-3BA0Mounting: Front plate | Contacts: 1 NO | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3CA0Mounting: Front plate | Contacts: 1 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3HA0Mounting: Front plate | Contacts: 1 NC | Switching: Installation supervision | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3DA0Mounting: Front plate | Contacts: 2 NO | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3EA0Mounting: Front plate | Contacts: 2 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3FA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3GA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-1AA10-3LA0Mounting: Front plate | Contacts: 1 NO | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3MA0Mounting: Front plate | Contacts: 1 NC | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3NA0Mounting: Front plate | Contacts: 2 NO | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3PA0Mounting: Front plate | Contacts: 2 NC | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3QA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-1AA10-3RA0Mounting: Front plate | Contacts: 1 NO + 1 NC | Switching: NO leading, NC lagging | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-2AA10-1BA0Mounting: Base | Contacts: 1 NO | Contact material: Silver alloy | Connection: Screw
3SU1400-2AA10-1CA0Mounting: Base | Contacts: 1 NC | Contact material: Silver alloy | Connection: Screw
3SU1400-2AA10-1LA0Mounting: Base | Contacts: 1 NO | Contact material: Gold-plated | Connection: Screw
3SU1400-2AA10-1MA0Mounting: Base | Contacts: 1 NC | Contact material: Gold-plated | Connection: Screw
3SU1400-2AA10-3BA0Mounting: Base | Contacts: 1 NO | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-2AA10-3CA0Mounting: Base | Contacts: 1 NC | Contact material: Silver alloy | Connection: Spring-loaded
3SU1400-2AA10-3LA0Mounting: Base | Contacts: 1 NO | Contact material: Gold-plated | Connection: Spring-loaded
3SU1400-3AA10-5BA0Mounting: PCB | Contacts: 1 NO | Contact material: Silver alloy | Connection: Socket (THT)
3SU1400-3AA10-5CA0Mounting: PCB | Contacts: 1 NC | Contact material: Silver alloy | Connection: Socket (THT)

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