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DIN rail
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DIN rail mounting
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Item
Siemens Single-Channel Safety Relay, 24V dc / 7845844
Quantity:
piece
Product information
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Item number:
2794E-7845844
Manufacturer:
Siemens
Manufacturer no.:
3SK1122-2CB42
EAN/GTIN:
4011209913721
Search terms:
Solid state relay
DIN rail mounting
DIN rail mountings
DIN-rail mounting bracket
The 3SK1 Advanced safety relays can be used in Emergency Off / Emergency Stop devices in accordance with ISO 60204-1 and in safety circuits in accordance with VDE 0113-1 and / or DIN EN 60204-1, e.g. in circuits in which controlled shutdown, STOP Category 1 is necessary. Depending on the external circuit, it is possible to achieve SILCL 3 in accordance with IEC 62061, SIL 3 in accordance with IEC 61508 and PL e (Cat. 4) in accordance with ISO 13849-1. The 3SK1 Advanced time delayed basic units have two time delayed and two instantaneous enabling circuits as NO circuits or outputs switching to P potential. SIRIUS 3SK1 Advanced Safety Relay - Configurable. The safety relays of the Advanced series comprise basic devices and input and output expansions. The Advanced devices can be connected by means of a 3ZY12 device connector. When configuring the system, it must be ensured that input expansions are always mounted on the left, and output expansions (3SK121) on the right of the basic unit. For control supply voltages of 110-240 Vac/dc, the Advanced series can be supplied with the necessary 24 Vdc voltage from the 3SK1230 power supply (which must be positioned on the extreme left in the system). The focus of the Advanced relay series is on: single devices that can be flexibly parameterized, expandability using 3ZY12 device connector on both input and output side and basic units with time-delayed enabling circuits / outputs. On the front of the 3SK1 Advanced basic units, there is a 4-way DIP switch for function setting and 4 LEDs for status and function display. A Set / Reset button can be used to load function settings and to perform a device restart (reset). On commissioning, the devices run a self test in which the internal electronics and firmware are checked for correct functioning. All internal parts of the circuit are cyclically monitored for faults during operation. The semiconductor outputs run through a dark test for up to 2 ms (dynamically) to verify their correct function. The safety relays can be expanded using 3ZY device connectors with input and output expansions. 4-way DIP switch for function setting (parameterization) Set / Reset button 4 LEDs for status and function display 2 sensor inputs (channels 1 and 2) 1 input (cascading circuit) 1 input (Start pushbutton circuit) NO contact/NC contact evaluation via external jumper Connection interface Removable terminals. Applications. Emergency Off / Emergency Stop monitoring Monitoring of protective doors with electromechanical position switches, solid state position switches, or solenoid switches Monitoring of contact free protection equipment, e.g. light arrays / light barriers, or laser scanners. 3SK1121 Advanced basic unit time-delayed (with relay outputs). 2 instantaneous enabling circuits (safety related circuits, NO contacts) 2 time delayed enabling circuits (safety related circuits, NO contacts) Potentiometer for setting the delay time Time function: with OFF delay. 3SK1122 Advanced basic unit time-delayed (with solid-state outputs). 2 instantaneous solid state outputs 2 time delayed solid state outputs Potentiometer for setting the delay time Time function: with OFF delay
More information:
Supply Voltage:
24V dc
Number of Channels:
1
Reset Method:
Automatic, Monitored
Range:
SIRIUS
Safety Category (ISO 13849-1):
4
PL (ISO 13849-1):
e
SIL (IEC 61508):
3
Terminal Type:
Cage Clamp
Configurable:
Yes
Depth:
122mm
Series:
3SK1
Width:
22.5mm
Length:
100mm
Performance Level:
e
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Relays & Signal Conditioning
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Safety Relays
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Relays & Signal Conditioning
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Siemens
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3SK11222CB42
Offers
(2)
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Max. 3 days
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Max. 10 days
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Unit price
2794 East Midlands NN17
Carriage paid
from £ 129.493*
£ 131.113*
5070 West Midlands B46
£ 7.70*
from £ 133.83*
£ 141.11*
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Prices:
2794 East Midlands NN17
Order quantity
Net
Gross
Unit
1 piece
£ 131.113*
£ 157.336
per piece
from 2 pieces
£ 130.553*
£ 156.664
per piece
from 5 pieces
£ 129.793*
£ 155.752
per piece
from 10 pieces
£ 129.493*
£ 155.392
per piece
Stock level:
2794 East Midlands NN17
Shipping:
2794 East Midlands NN17
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Rights to return this item:
2794 East Midlands NN17
Short info
The stars symbolise an assessment of the return conditions of your selected offer. 5 stars as a theoretical maximum number would mean life-long taking back the goods without reservation and without additional costs. The more stars, the more beneficial the return conditions.
Period of time:
On the first day
Condition of packaging:
Original packaging opened, but not damaged
Condition of goods:
Unused
Return costs:
Paid by supplier
Processing fee:
Costs to be determined by the trading partner based on a case-by-case review.
The Terms and Conditions state that the warranty period continues regardless of the return rights stated.
Accessories
We have the following accessories in our assortment:
Type
Picture
Item
Manufacturer/Manufacturer no.
Price
Accessories
Siemens 3SK1 Series Output Module, 0 Inputs, 5 Outputs, 24 V dc, 3NO/1NC / 7845869
Siemens
3SK1213-1AB40
from £ 188.43*
Accessories
Siemens 3SK1 Series Output Module, 0 Inputs, 5 Outputs, 24 V dc, 3NO/1NC / 7845875
Siemens
3SK1213-2AB40
from £ 186.60*
Accessories
Siemens 3SK1 Series Output Module, 0 Inputs, 6 Outputs, 24 V ac, 4NO/1NC / 7845841
Siemens
3SK1211-1BB00
from £ 133.81*
Accessories
Siemens 3SK1 Series Output Module, 0 Inputs, 6 Outputs, 24 V ac, 4NO/1NC / 7845857
Siemens
3SK1211-2BB00
from £ 129.40*
Accessories
Siemens 3SK1 Series Output Module, 0 Inputs, 6 Outputs, 24 V dc, 4NO/1NC / 7845850
Siemens
3SK1211-1BB40
from £ 135.39*
Accessories
Siemens 3SK1 Series Output Module, 0 Inputs, 6 Outputs, 24 V dc, 4NO/1NC / 7845866
Siemens
3SK1211-2BB40
from £ 131.02*
Accessories
Siemens Safety Relay, 110 → 240V ac/dc / 7845881
Siemens
3SK1230-1AW20
from £ 84.956*
* Prices with asterisk are net prices excl. statutory VAT.
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