3SB3400-0E SIEMENS Programmable controller

Description

3SB3400-0E SIEMENS Programmable controller

Product Dimensions：

Product Description

The 3SB3400-0E is a compact, front-plate-mounted contact block featuring two normally closed (2 NC) contacts. It serves as an electrical switching element that attaches to the rear of operator heads (such as pushbuttons or selector switches). When the operator is actuated, the contact block opens or closes the electrical circuit to provide signals to PLCs, relays, or motor starters.

Product Parameters

Product Advantages

• Modular Design: The snap-on design allows for quick and easy installation or replacement behind the control panel front plate.
• Durability: Built to withstand demanding industrial conditions with high mechanical and electrical endurance.
• Compact Footprint: The slim profile is ideal for control cabinets where space is at a premium.
• Compatibility: Integrates seamlessly with the legacy Siemens 3SB3 signaling and operator device family.

Product Applications

This contact block is used in various industrial automation and control scenarios:

• Manual Control Circuits: Start/stop buttons for machinery and motors.
• Emergency Stop & Interlocks: Used in safety circuits where a “Normally Closed” signal is required to detect open circuits.
• Signal Feedback: Providing status feedback to PLCs (Programmable Logic Controllers) or DCS systems.
• Industrial Operator Stations: Control panels for manufacturing, assembly lines, and heavy machinery.

Precautions

• Obsolescence: As the product is discontinued, sourcing new, genuine stock may be difficult. Always verify the status with your supplier.
• Migration: When replacing a faulty 3SB3400-0E in an existing panel, consider that the newer SIRIUS ACT 3SU1 series may require different mounting adapters or slightly different wiring clearances. Use the Siemens Conversion Tool to verify compatibility.
• Safety Precautions: Always ensure the control circuit is de-energized before installing or replacing contact blocks to prevent accidental contact with live terminals.
• Environment: Ensure the ambient environment remains within the specified temperature range to prevent premature degradation of the plastic housing or internal components.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Please make an inquiry for more models：