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Siemens 3RT1916-2FJ21 OFF Delay Auxiliary Switch Block

Siemens 3RT1916-2FJ21 solid-state auxiliary switch block with OFF delay.

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ManufacturerSiemens

Part number3RT1916-2FJ21

Type Auxiliary Switch Block

Function OFF Delay

Time Range 0.5-10 s

Voltage 24 V AC/DC

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Solid-state design Front mountable OFF delay function Adjustable time range 0.5-10 s 1 NO + 1 NC contacts For Size S00 contactors

Product description

The Siemens 3RT1916-2FJ21 is a solid-state auxiliary switch block designed for front mounting onto Siemens SIRIUS 3RT2 contactors of size S00. It features an OFF delay function with a time range adjustable from 0.5 to 10 seconds and operates on 24V AC/DC. This block provides one Normally Open (NO) and one Normally Closed (NC) contact configuration.

This auxiliary switch is essential for implementing timed control logic in industrial automation, particularly for motor control circuits, interlocking, and signaling applications. Its OFF delay capability allows for controlled shutdown sequences in machinery and process control systems across various industries, including manufacturing, material handling, and building automation.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 3RT1916-2FJ21. Secure reliable access to this component and ensure the continuity of your automated systems with our quality surplus parts.

Technical specifications

Type	Auxiliary Switch Block
Function	OFF Delay
Time Range	0.5-10 s
Voltage	24 V AC/DC
Contacts	1 NO + 1 NC
Mounting	Front Mount
Size	S00

Common applications

Motor control

Control panel automation

Machine safety circuits

Process control

Interlocking systems

Manufacturing automation

Compatible systems

Siemens 3RT2 Size S00 Contactors

Also known as

SIRIUS 3RT1916-2FJ21 Siemens timing auxiliary switch OFF delay module

Replaces / compatible with

This phased-out product has a preferred successor type of SIRIUS 3RA2815-1FW10. It is designed to snap onto the front of Siemens 3RT2.1 Size S00 contactors.

Technical note

Expert tip

This auxiliary switch block is designed to snap directly onto the front of compatible Siemens 3RT2 Size S00 contactors, simplifying installation.

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Frequently asked questions

What is the time delay and contact configuration of the Siemens 3RT1916-2FJ21?

The Siemens 3RT1916-2FJ21 is an auxiliary switch block featuring an OFF delay function with an adjustable time range from 0.5 to 10 seconds. It provides one Normally Open (NO) and one Normally Closed (NC) contact.