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. 175-3232
Mfr. Part No.1SBL367082R1322
BrandABB Jokab
MYR1,226.78
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 100 A 600 V ac 100 → 250 V dc, 100 → 250 V @ 50/60 Hz Screw 55mm 144mm 119.5mm
RS Stock No. 187-5340
Mfr. Part No.191734
BrandEaton
MYR404.28
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. 187-5357
Mfr. Part No.191712
BrandEaton
MYR997.56
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS Stock No. 175-3238
Mfr. Part No.1SBL397082R1322
BrandABB Jokab
MYR1,833.38
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 125 A 600 V ac 100 → 250 V dc, 100 → 250 V @ 50/60 Hz Screw 70mm 149mm 119.5mm
RS Stock No. 187-5343
Mfr. Part No.191704
BrandEaton
MYR379.86
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS Stock No. 175-3206
Mfr. Part No.1SBL157082R1122
BrandABB Jokab
MYR471.14
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 28 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 45mm 110.5mm 80mm
RS Stock No. 187-5358
Mfr. Part No.191738
BrandEaton
MYR939.26
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS Stock No. 187-5346
Mfr. Part No.191736
BrandEaton
MYR540.24
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS Stock No. 187-5359
Mfr. Part No.191759
BrandEaton
MYR939.26
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS Stock No. 187-5344
Mfr. Part No.191743
BrandEaton
MYR379.86
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS Stock No. 175-3241
Mfr. Part No.1SBL407082R1322
BrandABB Jokab
MYR1,961.48
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. 187-5360
Mfr. Part No.191726
BrandEaton
MYR1,382.57
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS Stock No. 782-3009
Mfr. Part No.P40P42D12P1-24
MYR594.64
Each
units
- - 3PST P40 NO - - 40 A - 24 V dc - - - -
RS Stock No. 766-1914
Mfr. Part No.3TK2851-1AJ20
BrandSiemens
MYR1,417.94
Each
units
- SIRIUS 2P 3TK28 2NO/NC - - 10 A 600 V ac 115 V ac Screw 132mm 90mm 108mm
RS Stock No. 187-5337
Mfr. Part No.191702
BrandEaton
MYR282.01
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. 187-5351
Mfr. Part No.191711
BrandEaton
MYR765.39
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS Stock No. 766-1918
Mfr. Part No.3TK2851-1AL20
BrandSiemens
MYR1,417.94
Each
units
- SIRIUS 2P 3TK28 2NO/NC - - 10 A 600 V ac 230 V ac Screw 132mm 90mm 108mm
RS Stock No. 187-5345
Mfr. Part No.191710
BrandEaton
MYR644.06
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS Stock No. 187-5349
Mfr. Part No.191705 | DILMS25-23(110V50HZ,120V60HZ)
BrandEaton
MYR530.04
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS Stock No. 187-5333
Mfr. Part No.191761
BrandEaton
MYR296.02
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc Screw 45mm 117mm 68mm
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