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Siemens 3TK2826-1CW30 SIRIUS Safety Relay - 4 NO, UC

Siemens 3TK2826-1CW30 SIRIUS safety relay with 4 NO instantaneous enabling circuits, 24-240V UC.

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ManufacturerSiemens

Part number3TK2826-1CW30

Voltage 24-240V UC

Width 45 mm

Terminals Screw

Enabling Circuits (EC) Instantaneous 4 NO

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4 instantaneous NO enabling circuits 2 safety contacts 24-240V UC operation 45mm width Screw terminal Universal voltage range

Product description

The Siemens 3TK2826-1CW30 is a versatile SIRIUS safety relay designed for a wide range of industrial applications. It operates on universal control voltage (24-240V UC) and features a 45mm width with screw terminals. This basic device provides 4 instantaneous normally open (NO) enabling circuits and 2 safety contacts (SC), with no delayed enabling circuits. It is rated for a maximum PL of d and SIL of 3 according to EN 13849-1 and IEC 61508.

This safety relay is ideal for safeguarding machinery where a broad control voltage range is beneficial, simplifying installation and inventory. It is commonly used in emergency stop systems, safety interlocking circuits, and monitoring applications across various industries.

Stanlo Automation, your trusted veteran-owned source for surplus industrial automation parts, offers the Siemens 3TK2826-1CW30. We ensure reliable components and excellent service for your critical safety needs.

Technical specifications

Voltage	24-240V UC
Width	45 mm
Terminals	Screw
Enabling Circuits (EC) Instantaneous	4 NO
Enabling Circuits (EC) Delayed	0
Safety Contacts (SC)	2
Functions	8
Max PL	d
Max SIL	3

Common applications

Machine Safety

Emergency Stop

Safety Interlocking

Industrial Automation

Control Panels

Diverse Voltage Systems

Compatible systems

Compatible with various safety sensors and control systems requiring SIL 3 / PL d rated safety relays, especially in systems with non-standard control voltages.

Also known as

Siemens 3TK2826-1CW30

Replaces / compatible with

This is a phased-out product. The successor series is 3SK2.

Technical note

Expert tip

The universal voltage rating makes this an adaptable choice for installations with varying control power sources, ensuring flexibility in deployment.

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Frequently asked questions

What is the advantage of the universal voltage (UC) on the Siemens 3TK2826-1CW30?

The 24-240V UC (Universal Control) voltage range on the Siemens 3TK2826-1CW30 allows it to be used with various control power supplies without needing different part numbers, simplifying inventory and installation in diverse systems.