Safety Contactors

Safety contactors are a type of safety relay, designed to ensure that if there is a fault either externally or within a device, the circuit will remain safe. They monitor functions in the circuit and react to faults, often by stopping or preventing the movement of parts.

How do safety contactors work?

Safety contactors are devices used for risk reduction in industrial settings. They work by switching the power in an electronic circuit, usually by breaking the circuit with electrical contacts. When a fault is detected, they will isolate the function they are monitoring, preventing it from continuing to work.

Each safety contactor measures a specific function, and there is usually a whole network of interconnected safety contactors working together to minimise risk.

Types of safety contactors

Safety contacts can vary by design in a number of different ways. This includes the number of contacts, their current and voltage rating, and their dimensions, which can vary quite significantly.


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Description Price Number of Contacts Range Pole and Throw Configuration Series Normal State Configuration Number Of Auxiliary Contacts Auxiliary Contacts Contact Current Rating Contact Voltage Rating Coil Voltage Terminal Type Length Width Depth
RS Stock No. 776-8469
Mfr. Part No.100S-C09EJ23C
£78.30
Each
Units
3 - 3P 100S-C 2NO/3NC 5 2NO/3NC 9 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS Stock No. 776-8472
Mfr. Part No.100S-C16EJ23C
£92.60
Each
Units
3 - 3P 100S-C 2NO/3NC 5 2NO/3NC 16 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS Stock No. 776-8475
Mfr. Part No.100S-C23EJ23C
£112.00
Each
Units
3 - 3P 100S-C 2NO/3NC 5 2NO/3NC 23 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS Stock No. 776-8504
Mfr. Part No.700S-CF620EJC
£87.50
Each
Units
- - 6P 700S-CF 3NO/NC 4 - 25 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS Stock No. 776-8491
Mfr. Part No.700S-CF440EJC
£87.50
Each
Units
- - 4P 700S-CF 3NO/NC, NO/3NC 4 - 25 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS Stock No. 776-8501
Mfr. Part No.700S-CF530EJC
£87.50
Each
Units
- - 5P 700S-CF 2NO/2NC, 3NO/NC 4 - 25 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS Stock No. 776-8488
Mfr. Part No.100S-C37EJ22C
£145.00
Each
Units
3 - 3P 100S-C 2NO/2NC 4 2NO/2NC 37 A 690 V ac 24 V dc - 81mm 45mm 143mm
RS Stock No. 776-8463
Mfr. Part No.100S-C12EJ23C
£77.80
Each
Units
3 - 3P 100S-C 2NO/3NC 5 2NO/3NC 12 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS Stock No. 776-8479
Mfr. Part No.100S-C30EJ22C
£127.00
Each
Units
3 - 3P 100S-C 2NO/2NC 4 2NO/2NC 30 A 690 V ac 24 V dc - 81mm 45mm 143mm
RS Stock No. 422-6650
Mfr. Part No.100S-C60DJ22C
£250.00
Each
Units
3 - 3P 100S-C 5NO/2NC 4 2NO/2NC 60 A 525 V ac 24 V dc Screw 122mm 72mm 156mm
RS Stock No. 766-1891
Mfr. Part No.3TK2850-1AJ20
BrandSiemens
£238.31
Each
Units
- SIRIUS 3P 3TK28 3NO - - 10 A 600 V ac 115 V ac Screw 132mm 90mm 108mm
RS Stock No. 422-6830
Mfr. Part No.700S-CF530KFC
£64.30
Each
Units
8 - 4P 700S-CF 5NO/3NC 4 2NO/2NC 25 A 690 V ac 230 V ac Wire 119.5mm 45mm 81mm
RS Stock No. 422-6420
Mfr. Part No.100S-C16KF23C
£66.00
Each
Units
3 - 3P 100S-C 5NO/3NC 5 2NO/3NC 16 A 525 V ac 230 V ac Screw 81mm 45mm 119.5mm
RS Stock No. 422-6701
Mfr. Part No.100S-C72DJ22C
£274.00
Each
Units
3 - 3P 100S-C 5NO/2NC 4 2NO/2NC 72 A 525 V ac 24 V dc Screw 122mm 72mm 156mm
RS Stock No. 422-6789
Mfr. Part No.700S-CF440KFC
£64.30
Each
Units
8 - 4P 700S-CF 4NO/4NC 4 NO/3NC 25 A 690 V ac 690 V ac Wire 119.5mm 45mm 81mm
RS Stock No. 422-6874
Mfr. Part No.700S-CF620KFC
£64.30
Each
Units
8 - 4P 700S-CF 6NO/2NC 4 3NO/NC 10 A 690 V ac 230 V ac Wire 119.5mm 45mm 81mm
RS Stock No. 422-6341
Mfr. Part No.100S-C09KF23C
£52.30
Each
Units
3 - 3P 100S-C 5NO/3NC 5 2NO/3NC 9 A 525 V ac 230 V ac Screw 81mm 45mm 119.5mm
RS Stock No. 422-6868
Mfr. Part No.700S-CF620KDC
£64.30
Each
Units
8 - 4P 700S-CF 6NO/2NC 4 3NO/NC 10 A 690 V ac 110 V ac Wire 119.5mm 45mm 81mm
RS Stock No. 776-8481
Mfr. Part No.100S-C43EJ22C
£197.00
Each
Units
3 - 3P 100S-C 2NO/2NC 4 2NO/2NC 43 A 690 V ac 24 V dc - 81mm 45mm 146mm
RS Stock No. 422-6329
Mfr. Part No.100S-C09KJ23C
£52.30
Each
Units
3 - 3P 100S-C 5NO/3NC 5 2NO/3NC 9 A 525 V ac 24 V ac Screw 81mm 45mm 119.5mm
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