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. 766-1936
Mfr. Part No.3TK2852-1BB40
BrandSiemens
TWD11,180.00
Each
units
- SIRIUS 6P 3TK28 6NO/NC - - 10 A 600 V ac 24 V dc Screw 132mm 90mm 146mm
RS Stock No. 187-5337
Mfr. Part No.191702
BrandEaton
TWD2,267.00
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. 175-3213
Mfr. Part No.1SBL237082R1122
BrandABB Jokab
TWD4,318.00
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 45 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 45mm 119.5mm 80mm
RS Stock No. 187-5338
Mfr. Part No.191741
BrandEaton
TWD2,267.00
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. 187-5339
Mfr. Part No.191762
BrandEaton
TWD2,941.00
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 9 A 400 V 24 V dc Screw 45mm 117mm 68mm
RS Stock No. 175-3229
Mfr. Part No.1SBL347082R1322
BrandABB Jokab
TWD6,461.00
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 70 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 55mm 144mm 119.5mm
RS Stock No. 175-3209
Mfr. Part No.1SBL177082R1122
BrandABB Jokab
TWD3,613.00
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 30 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 45mm 110.5mm 80mm
RS Stock No. 175-3203
Mfr. Part No.1SBL137082R1322
BrandABB Jokab
TWD2,089.00
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 25 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 45mm 110.5mm 80mm
RS Stock No. 187-5335
Mfr. Part No.191754
BrandEaton
TWD3,086.00
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. 766-1891
Mfr. Part No.3TK2850-1AJ20
BrandSiemens
TWD10,231.00
Each
units
- SIRIUS 3P 3TK28 3NO - - 10 A 600 V ac 115 V ac Screw 132mm 90mm 108mm
RS Stock No. 175-3225
Mfr. Part No.1SBL297082R1122
BrandABB Jokab
TWD5,779.00
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
RS Stock No. 187-5355
Mfr. Part No.191706
BrandEaton
TWD5,516.00
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. 175-3205
Mfr. Part No.1SBL156082R3022
BrandABB Jokab
TWD3,181.00
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 28 A 600 V ac 24 V dc Screw 45mm 110.5mm 80mm
RS Stock No. 187-5325
Mfr. Part No.191700
BrandEaton
TWD2,074.00
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 45mm 117mm 68mm
RS Stock No. 187-5342
Mfr. Part No.191722
BrandEaton
TWD3,537.00
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 9 A 400 V 24 V dc Screw 45mm 117mm 68mm
RS Stock No. 187-5344
Mfr. Part No.191743
BrandEaton
TWD3,054.00
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. 187-5348
Mfr. Part No.191724
BrandEaton
TWD6,895.00
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS Stock No. 175-3232
Mfr. Part No.1SBL367082R1322
BrandABB Jokab
TWD8,281.00
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 100 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 55mm 144mm 119.5mm
RS Stock No. 187-5334
Mfr. Part No.191733
BrandEaton
TWD3,086.00
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. 187-5333
Mfr. Part No.191761
BrandEaton
TWD2,380.00
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc Screw 45mm 117mm 68mm