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. 782-3049
Mfr. Part No.PRDA-11AGA-120
SGD118.39
Each
units
- - DPDT PRD - - - 30 A - 120 V ac - - - -
RS Stock No. 782-3009
Mfr. Part No.P40P42D12P1-24
SGD244.38
Each
units
- - 3PST P40 NO - - 40 A - 24 V dc - - - -
RS Stock No. 175-3218
Mfr. Part No.1SBL276082R3022
BrandABB Jokab
SGD226.36
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 24 V dc Screw 45mm 119.5mm 80mm
RS Stock No. 187-5333
Mfr. Part No.191761
BrandEaton
SGD101.50
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc Screw 45mm 117mm 68mm
RS Stock No. 175-3223
Mfr. Part No.1SBL296082R3022
BrandABB Jokab
SGD263.74
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 24 V dc Screw 45mm 119.5mm 80mm
RS Stock No. 175-3227
Mfr. Part No.1SBL347082R1122
BrandABB Jokab
SGD353.02
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 70 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 55mm 144mm 119.5mm
RS Stock No. 187-5332
Mfr. Part No.191740
BrandEaton
SGD90.17
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 45mm 117mm 68mm
RS Stock No. 187-5336
Mfr. Part No.191721
BrandEaton
SGD144.80
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc Screw 45mm 117mm 68mm
RS Stock No. 766-1918
Mfr. Part No.3TK2851-1AL20
BrandSiemens
SGD462.32
Each
units
- SIRIUS 2P 3TK28 2NO/NC - - 10 A 600 V ac 230 V ac Screw 132mm 90mm 108mm
RS Stock No. 187-5338
Mfr. Part No.191741
BrandEaton
SGD96.68
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 9 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 45mm 117mm 68mm
RS Stock No. 187-5337
Mfr. Part No.191702
BrandEaton
SGD96.68
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 9 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 45mm 117mm 68mm
RS Stock No. 175-3211
Mfr. Part No.1SBL177082R1322
BrandABB Jokab
SGD121.48
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 30 A 600 V ac 100 → 250 V dc, 100 → 250 V @ 50/60 Hz Screw 45mm 110.5mm 80mm
RS Stock No. 175-3212
Mfr. Part No.1SBL236082R3022
BrandABB Jokab
SGD197.07
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 45 A 600 V ac 24 V dc Screw 45mm 119.5mm 80mm
RS Stock No. 175-3241
Mfr. Part No.1SBL407082R1322
BrandABB Jokab
SGD604.29
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 130 A 600 V ac 100 → 250 V dc, 100 → 250 V @ 50/60 Hz Screw 70mm 149mm 119.5mm
RS Stock No. 187-5351
Mfr. Part No.191711
BrandEaton
SGD262.41
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS Stock No. 175-3237
Mfr. Part No.1SBL397082R1122
BrandABB Jokab
SGD564.83
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 125 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 70mm 149mm 119.5mm
RS Stock No. 175-3226
Mfr. Part No.1SBL297082R1322
BrandABB Jokab
SGD255.43
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 100 → 250 V dc, 100 → 250 V @ 50/60 Hz Screw 45mm 119.5mm 80mm
RS Stock No. 187-5334
Mfr. Part No.191733
BrandEaton
SGD131.60
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 45mm 117mm 68mm
RS Stock No. 187-5350
Mfr. Part No.191744
BrandEaton
SGD181.70
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS Stock No. 175-3219
Mfr. Part No.1SBL277082R1122
BrandABB Jokab
SGD226.36
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 45mm 119.5mm 80mm
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Description:
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The 3-Pole ABB Jokab safety contactor relay has ...
Description:
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The DILAS safety relay, available in three different ...
Description:
The DILAS safety relay, available in three different coil voltages, rounds out Eaton’s product range in this area. The following drive options are available: 110V 50Hz, 120V 60Hz, 230V 50Hz, 240V 60Hz, 24VDC (RDC24). The contactor’s yellow cover allows for ...
All versions of the DILMS safety contactor are ...
Description:
All versions of the DILMS safety contactor are equipped with a top-mounted auxiliary contact that is non-detachable. The integrated mirror contacts and interlocked opposing contacts make this contactor even safer. The contactor’s yellow cover allows for quick and easy identification. ...