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Siemens Industrial Controls 3SU1400-1AA10-1BA0 1N/O Contact Block

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Special Price $18.00 Regular Price $23.41
In stock
SKU
3SU1400-1AA10-1BA0
The Siemens Industrial Controls 3SU1400-1AA10-1BA0 1N/O Contact Block connects a single normally open switching contact to compatible controls in HVAC systems for different electrical regulating operations. The contact remains open until the related actuator is operated, at which point it closes to complete the connected electrical circuit. It mounts directly onto the compatible control assembly and integrates with the existing wiring arrangement during installation. Proper contact switching supports flexible control configurations and improves electrical signal management for control circuits.
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HVAC Controls & Electrical, Relays,
Manufacturer:
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Manufacturer Name: Siemens Industrial Controls
Product Number: 3SU1400-1AA10-1BA0
OEM Part Number: 3SU1400-1AA10-1BA0
Product Description: 1 N/O Contact Block
Weight:0.02lbs/9.07g

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Product Questions (2)
Customer Questions
What maintenance is required for the Siemens Industrial Controls 3SU1400-1AA10-1BA0 Contact Module?

Inspect the contact module regularly for loose screw terminals, dust buildup, or worn contact surfaces that may affect switching accuracy. Verify secure front plate mounting and proper actuator connection during panel inspections. Keep the enclosure dry and disconnect control power before servicing the control components.

What are common issues with the Siemens Industrial Controls 3SU1400-1AA10-1BA0 Contact Module?

  • Contact surfaces wearing or pitting during repeated switching.
  • Loose screw terminals causing intermittent signal operation.
  • Failure of the contact to connect properly.
  • Dust or moisture contamination affecting electrical continuity.

Installation Steps

Step 1: Switch off control power and verify zero voltage before opening the panel.

Step 2: Remove the push button actuator and access the rear mounting holder.

Step 3: Align the contact module with the holder and snap it into place securely.

Step 4: Tighten screw terminals and connect control wires to the contact as per wiring diagram.

Step 5: Reinstall actuator and ensure proper mechanical connection with the contact block.

Step 6: Restore power and test switching operation for correct contact response and safety function.