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Siemens 3TH4391-0AK6 Contactor Relay: 120V/110V AC, 9 NO + 1 NC

Siemens 3TH4391-0AK6 Contactor Relay: Dual voltage AC, 9 NO + 1 NC.

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ManufacturerSiemens

Part number3TH4391-0AK6

Contacts 9 NO + 1 NC

Operation AC

Voltage 120V AC 60 Hz / 110V AC 50 Hz

Standard EN 50011

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CAGE: 9NK75

Dual Voltage AC Coil (110/120V) 9 Normally Open Contacts 1 Normally Closed Contact Screw Terminals EN 50011 Compliant

Product description

The Siemens 3TH4391-0AK6 is a versatile contactor relay offering dual voltage operation for AC circuits. It provides 9 Normally Open (NO) and 1 Normally Closed (NC) contacts, designed for 120V AC at 60 Hz or 110V AC at 50 Hz. The relay conforms to EN 50011 standards and uses screw terminals for installation.

This contactor relay is well-suited for control systems requiring flexibility in power supply frequencies. Applications include motor control, automation systems, and general electrical switching in diverse industrial settings.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3TH4391-0AK6. Secure essential components for your projects from a trusted source focused on reliability and value.

Technical specifications

Contacts	9 NO + 1 NC
Operation	AC
Voltage	120V AC 60 Hz / 110V AC 50 Hz
Standard	EN 50011
Terminal Type	Screw terminal

Common applications

Motor Control

Industrial Automation

Control Panels

HVAC Control

Electrical Switching

Compatible systems

Industrial control panels PLC systems Motor starter circuits

Also known as

Siemens 3TH4391-0AK6 Contactor Contactor Relay 110/120V AC

Replaces / compatible with

Suitable for replacement in control systems that require dual-frequency AC coil operation. Compatible with Siemens industrial control components.

Technical note

Expert tip

The dual voltage capability makes this relay particularly useful for international applications or systems with varying power frequency sources.

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Frequently asked questions

Can the Siemens 3TH4391-0AK6 operate on both 50 Hz and 60 Hz power supplies?

Yes, the Siemens 3TH4391-0AK6 is designed to operate reliably on both 110V AC at 50 Hz and 120V AC at 60 Hz, offering broad application compatibility.