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Siemens 3SB3403-0C 1 NC Contact Block

Siemens 3SB3403-0C contact block with 1 NC contact, spring-loaded terminals.

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ManufacturerSiemens

Part number3SB3403-0C

Contact Element 1 NC

Terminal Type Spring-loaded Terminal

Mounting Front Plate Mounting

Series 3SB3

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12-month warranty

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Veteran-owned

CAGE: 9NK75

1 Normally Closed (NC) contact Spring-loaded terminals Front plate mounting Phased-out product

Product description

The Siemens 3SB3403-0C is an actuator and indicator component contact block featuring a single normally closed (NC) contact element. It is equipped with spring-loaded terminals for easy and reliable termination. This component is part of the phased-out 3SB3 series.

This NC contact block is crucial for safety functions and control logic that requires a circuit to be interrupted when activated. Its spring-loaded terminal design ensures a robust connection suitable for demanding industrial environments.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 3SB3403-0C. Rely on us for your obsolete automation component needs to maintain your critical systems.

Technical specifications

Contact Element	1 NC
Terminal Type	Spring-loaded Terminal
Mounting	Front Plate Mounting
Series	3SB3

Common applications

Safety Circuits

Industrial Control

Machine Safety

Interlock Systems

Compatible systems

Compatible with Siemens 3SB3 series actuators and indicator components.

Also known as

Siemens 3SB3403-0C Single NC Block 3SB3 Series NC Spring Terminal

Replaces / compatible with

This part has been phased out. The preferred successor is the Siemens SIRIUS ACT 3SU1 series, specifically the 3SU1400-1AA10-3CA0.

Technical note

Expert tip

The spring-loaded terminals are designed for solid or stranded wire and offer a quick, tool-free connection solution, ideal for field installations.

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Frequently asked questions

Why are spring-loaded terminals used on the Siemens 3SB3403-0C contact block?

Spring-loaded terminals on the Siemens 3SB3403-0C block provide a secure and vibration-resistant connection that does not require retightening. This ensures reliable electrical contact in harsh industrial environments, reducing maintenance needs.