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Siemens MJ-4A Miniature Relay

Siemens MJ-4A Miniature Relay.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part numberMJ-4A

Type Miniature Relay

Configuration SPDT (Single Pole Double Throw)

Coil Voltage Varies (check datasheet)

Contact Rating Varies (check datasheet)

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12-month warranty

All units tested

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

Compact size Reliable switching General purpose applications Electrical isolation Siemens quality Easy integration

Product description

The Siemens MJ-4A is a miniature relay, designed for general-purpose switching applications in control circuits. It offers reliable electrical isolation between control and load circuits, making it suitable for various automation tasks. This relay is compact and efficient, fitting easily into control panels.

This miniature relay is commonly used in building automation, small appliance controls, and low-power industrial switching applications where space is limited. It is a fundamental component in many electronic control systems.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens MJ-4A. We offer a cost-effective way to source reliable industrial components, ensuring your equipment is maintained and operational with quality surplus parts.

Technical specifications

Type	Miniature Relay
Configuration	SPDT (Single Pole Double Throw)
Coil Voltage	Varies (check datasheet)
Contact Rating	Varies (check datasheet)
Manufacturer	Siemens

Common applications

Control circuits

Low-power switching

Appliance control

Building automation

Signal relay

Industrial control panels

Compatible systems

Control panels Low-voltage control systems PLC output stages

Also known as

Siemens Mini Relay MJ-4A MJ-4A General Purpose Relay

Replaces / compatible with

Can replace older Siemens miniature relays or other SPDT miniature relays with similar specifications.

Technical note

Expert tip

Ensure the coil voltage of the Siemens MJ-4A relay matches the control voltage supply to prevent damage and ensure proper operation.

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Frequently asked questions

What is the typical application for a Siemens MJ-4A miniature relay?

The Siemens MJ-4A miniature relay is typically used in control circuits for general-purpose switching tasks. Its compact size and reliability make it suitable for applications like appliance control, building automation, and signal relaying where space is a consideration.