SIRIUS 3SK1 Safety Relays Siemens (Сименс) доставка по России со склада и под заказ

SIRIUS 3SK1 safety relays are the key elements of a consistent, cost-effective safety chain. Whether you need EMERGENCY-STOP disconnection, protective door monitoring, light arrays, laser scanners or the protection of presses or punches – with SIRIUS safety relays 22.5 mm wide every safety application can be implemented to optimum effect in terms of engineering and price.

The following safety-oriented functions are available:

Monitoring the safety functions of sensors
Monitoring the sensor leads
Monitoring correct functioning of safety relays
Monitoring the actuators in the shutdown circuit
Safety-oriented disconnection when dangers arise

SIRIUS 3SK1 safety relays satisfy the most stringent requirements of IEC 61508/IEC 62061 (SIL 3) and EN ISO 13849-1 (PL e).

SIRIUS 3SK1 safety relays stand out due to their flexibility for both parameterization and system designs with several evaluation units. Optimized solutions when selecting components are facilitated by a clearly structured component range:

Standard basic units
Advanced basic units
Output expansions
Input expansions
Accessories

The 3SK1 Standard basic units are characterized by the following features:

Compact design
Simple operation
Relay and semiconductor outputs
Economical solution

However, the 3SK1 Advanced basic units also offer the following:

Universal application opportunities thanks to multifunctionality
Time-delayed outputs
Expansion of inputs and outputs

In the case of Advanced basic units, the 3ZY1 device connector allows safety functions involving several sensors and actuators to be constructed very quickly.

The 3SK1 Standard and Advanced series are a high-quality replacement for the 3TK28 safety relays. In their narrower design, and equipped with greater functionality, they can replace every 3TK28 device. The only exceptions are devices with special functions, such as 3TK28 26, 3TK28 45 and the 3TK28 10 devices. See below for an order number reassignment table 3TK28 to 3SK1.

Functional overview of the 3SK1 series

Type	Standard basic units		Advanced basic units
	Relay enabling circuits	Solid-state enabling circuits	Relay enabling circuits	Solid-state enabling circuits
Sensors
Mechanical	✓	✓	✓	✓
Single-ended	✓	✓	✓	✓
Antivalent	--	--	✓	✓
Expandable	--	✓ by means of cascading	✓	✓
Parameter
Start (auto/monitored)	✓	✓	✓	✓
Sensor connection, 2 x 1-channel/ 1 x 2-channel	--	✓	✓	✓
Crossover monitoring	✓ Using wiring	✓	✓	✓
Start test ON/OFF	--	✓	✓	✓
Monitoring of two-hand operation consoles	--	--	✓	✓
Enabling circuits
Instantaneous	✓	✓	✓	✓
Time-delayed	--	--	✓	✓
Expandable with relay enabling circuits	✓ Using wiring	✓ Using wiring	✓	✓
Device connectors	--	--	✓	✓
Rated control supply voltage
24 V DC	✓	✓	✓	✓
115 … 240 V AC/DC	✓	--	✓¹⁾	✓¹⁾

✓ Available

-- Not available

1) Possible using 3SK1 230 power supply via device connector.

3SK1 12 and 3SK1 112 safety relays with DIP switch

The 3 SK1 12 and 3SK1 112 safety relays are configurable safety relays. They are used as evaluation units for typical safety chains (detect, evaluate, deactivate). A number of functions can be set using the DIP switches on the front. This makes the 3SK1 12 and 3SK1 112 universally usable.

OFF	DIP switch no.	ON
Autostart sensor input	1	Monitored start sensor input
without crossover monitoring	2	With crossover monitoring
2 x single-channel sensor connection	3	1 x 2-channel sensor connection
with start test	4	without start test

Number of safe outputs

	Relay enabling circuits		Solid-state enabling circuits		3ZY1 device connector
	Instantaneous	Delayed	Instantaneous	Delayed
3SK1 Standard basic units
3SK1 111	3	--	--	--	--
3SK1 112	--	--	2	--	--
3SK1 Advanced basic units
3SK1 120	--	--	1	--	✓
3SK1 121-.AB40	3	--	--	--	✓
3SK1 121-.CB4.	2	2	--	--	✓
3SK1 122-.AB40	--	--	3	--	✓
3SK1 122-.CB4.	--	--	2	2	✓
3SK1 expansion units
3SK1 211	4	--	--	--	✓
3SK1 213	3	--	--	--	✓

✓ available

-- not available

Can be expanded by adding the 3RM1 motor starter

With previous safety relay and motor starter designs an enormous amount of wiring was required to monitor the motor starters in safety applications.

Traditional system design

With the integration of the SIRIUS 3RM1 motor starter into the SIRIUS 3SK1 safety relay system family, this wiring has been minimized for the first time.

Motors up to 3 kW can easily be integrated into the safety relay system using SIRIUS 3ZY1 device connectors, without having to run a cable between the evaluation unit and the motor starter.

System design using 3SK1 and 3RM1

Order number reassignment table

The table below lists the existing 3TK28 order numbers with the corresponding 3SK1 order numbers.

Order number 3TK28 basic unit	Order number 3SK1 Standard basic units	Order number 3SK1 Advanced basic units
3TK28 20
3TK28 20-1AJ20	3SK1 111-1AW20	3SK1 121-1AB40 + 3SK1 230-1AW20
3TK28 20-1AL20	3SK1 111-1AW20	3SK1 121-1AB40 + 3SK1 230-1AW20
3TK28 20-1CB30	3SK1 111-1AB30	3SK1 121-1AB40
3TK28 20-2AJ20	3SK1 111-2AW20	3SK1 121-2AB40 + 3SK1 230-2AW20
3TK28 20-2AL20	3SK1 111-2AW20	3SK1 121-2AB40 + 3SK1 230-2AW20
3TK28 20-2CB30	3SK1 111-2AB30	3SK1 121-2AB40
3TK28 21
3TK28 21-1CB30	3SK1 111-1AB30	3SK1 121-1AB40
3TK28 21-2CB30	3SK1 111-2AB30	3SK1 121-2AB40
3TK28 22
3TK28 22-1CB30	3SK1 111-1AB30	3SK1 121-1AB40
3TK28 22-2CB30	3SK1 111-2AB30	3SK1 121-2AB40
3TK28 23
3TK28 23-1CB30	Область применения SIRIUS 3SK1 safety relays are used mainly in autonomous safety applications which are not connected to a safety-oriented bus system. Their function here is to evaluate the sensors and the safety-oriented shutdown of hazards. Also they check and monitor the sensors, actuators and safety-oriented functions of the safety relay. Тех. данные Дальнейшая информация For the manual "3SK1 Safety Relays" see http://support.automation.siemens.com/WW/view/en/67585885