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
New
RS Stock No. 187-5337
Mfr. Part No.191702
BrandEaton
HK$516.35
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
New
RS Stock No. 187-5330
Mfr. Part No.191720
BrandEaton
HK$805.43
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 24 V dc Screw 45mm 117mm 68mm
New
RS Stock No. 187-5348
Mfr. Part No.191724
BrandEaton
HK$1,570.19
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
New
RS Stock No. 187-5335
Mfr. Part No.191754
BrandEaton
HK$702.84
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
New
RS Stock No. 187-5338
Mfr. Part No.191741
BrandEaton
HK$516.35
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
New
RS Stock No. 187-5349
Mfr. Part No.191705
BrandEaton
HK$970.43
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
New
RS Stock No. 187-5346
Mfr. Part No.191736
BrandEaton
HK$989.14
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
New
RS Stock No. 187-5360
Mfr. Part No.191726
BrandEaton
HK$2,531.44
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
New
RS Stock No. 187-5331
Mfr. Part No.191701
BrandEaton
HK$481.59
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
New
RS Stock No. 187-5336
Mfr. Part No.191721
BrandEaton
HK$773.32
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc Screw 45mm 117mm 68mm
New
RS Stock No. 187-5327
Mfr. Part No.191760
BrandEaton
HK$533.74
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 24 V dc Screw 45mm 117mm 68mm
New
RS Stock No. 187-5340
Mfr. Part No.191734
BrandEaton
HK$740.25
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
New
RS Stock No. 187-5332
Mfr. Part No.191740
BrandEaton
HK$481.59
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
New
RS Stock No. 187-5326
Mfr. Part No.191739
BrandEaton
HK$472.42
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 45mm 117mm 68mm
New
RS Stock No. 187-5356
Mfr. Part No.191745
BrandEaton
HK$1,256.12
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
New
RS Stock No. 187-5333
Mfr. Part No.191761
BrandEaton
HK$542.06
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc Screw 45mm 117mm 68mm
New
RS Stock No. 187-5343
Mfr. Part No.191704
BrandEaton
HK$695.59
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
New
RS Stock No. 187-5329
Mfr. Part No.191753
BrandEaton
HK$733.86
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 45mm 117mm 68mm
New
RS Stock No. 187-5328
Mfr. Part No.191732
BrandEaton
HK$733.86
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz Screw 45mm 117mm 68mm
New
RS Stock No. 187-5345
Mfr. Part No.191710
BrandEaton
HK$1,179.24
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm