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Siemens 3UB8123-4MW2 Auxiliary Relay | 4NC Contacts

Siemens 3UB8123-4MW2 Auxiliary Relay with 4 NC contacts.

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ManufacturerSiemens

Part number3UB8123-4MW2

Contacts 4 NC

Coil Voltage Varies (check datasheet)

Series 3UB8

Mounting DIN Rail

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4 Normally Closed Contacts Safety Interlocking Siemens Quality DIN Rail Mountable Reliable Performance

Product description

The Siemens 3UB8123-4MW2 is an auxiliary relay engineered for control circuit applications, offering 4 normally closed (NC) contacts. This relay provides essential functionality for safety interlocks and status indication in industrial automation systems. It adheres to Siemens' stringent quality and performance benchmarks.

This auxiliary relay is integral to applications requiring circuits to be normally closed, such as emergency stop circuits or alarm systems. It finds use in sectors like manufacturing, automation, and facility management where reliable circuit control is paramount.

Secure your Siemens 3UB8123-4MW2 from Stanlo Automation, a trusted veteran-owned distributor of surplus industrial parts. We offer competitive pricing and dependable availability.

Technical specifications

Contacts	4 NC
Coil Voltage	Varies (check datasheet)
Series	3UB8
Mounting	DIN Rail
IP Rating	IP20

Common applications

Emergency Stop Circuits

Alarm Systems

Safety Interlocks

Control Panel Wiring

Industrial Automation

Compatible systems

Safety Circuits Emergency Stop Systems Control Panel Wiring

Also known as

Siemens 3UB8 Relay 3UB81234MW2

Replaces / compatible with

This relay is designed as a direct replacement for other Siemens 3UB8 series auxiliary relays with similar configurations.

Technical note

Expert tip

When used in safety circuits, ensure proper integration with safety controllers and adherence to relevant safety standards.

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Frequently asked questions

What is the primary application for a Siemens 3UB8123-4MW2 with NC contacts?

The Siemens 3UB8123-4MW2, with its 4 normally closed (NC) contacts, is ideal for safety-critical applications like emergency stop circuits or interlocking functions. It ensures that a circuit is continuously monitored and breaks contact only when actuated.