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 Length Width Depth Minimum Operating Temperature
RS Stock No. 175-3199
Mfr. Part No.1SBL136082R3022
BrandABB Jokab
$168.09
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 25 A 600 V ac 24 V dc 45mm 110.5mm 80mm -40 °C, -25 °C
RS Stock No. 187-5350
Mfr. Part No.191744
BrandEaton
$208.91
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz 56mm 138mm 85mm -25°C
RS Stock No. 175-3201
Mfr. Part No.1SBL137082R1122
BrandABB Jokab
$168.09
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 25 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz 45mm 110.5mm 80mm -40 °C, -25 °C
RS Stock No. 187-5351
Mfr. Part No.191711
BrandEaton
$301.71
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 24 → 27 V dc 56mm 138mm 85mm -25°C
RS Stock No. 175-3231
Mfr. Part No.1SBL367082R1122
BrandABB Jokab
$473.64
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 100 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz 55mm 144mm 119.5mm -40 °C, -25 °C
RS Stock No. 187-5352
Mfr. Part No.191737
BrandEaton
$268.98
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz 56mm 138mm 85mm -25°C
RS Stock No. 175-3223
Mfr. Part No.1SBL296082R3022
BrandABB Jokab
$323.33
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 24 V dc 45mm 119.5mm 80mm -40 °C, -25 °C
RS Stock No. 187-5360
Mfr. Part No.191726
BrandEaton
$544.97
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 24 → 27 V dc 56mm 138mm 85mm -25°C
RS Stock No. 187-5354
Mfr. Part No.191725
BrandEaton
$397.79
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 24 → 27 V dc 56mm 138mm 85mm -25°C
RS Stock No. 175-3219
Mfr. Part No.1SBL277082R1122
BrandABB Jokab
$277.56
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz 45mm 119.5mm 80mm -40 °C, -25 °C
RS Stock No. 187-5329
Mfr. Part No.191753
BrandEaton
$158.01
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz 45mm 117mm 68mm -25°C
RS Stock No. 187-5347
Mfr. Part No.191757
BrandEaton
$212.92
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz 56mm 138mm 85mm -25°C
RS Stock No. 187-5345
Mfr. Part No.191710
BrandEaton
$253.88
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 24 → 27 V dc 56mm 138mm 85mm -25°C
RS Stock No. 187-5326
Mfr. Part No.191739
BrandEaton
$101.66
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz 45mm 117mm 68mm -25°C
RS Stock No. 187-5357
Mfr. Part No.191712
BrandEaton
$393.18
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 24 → 27 V dc 56mm 138mm 85mm -25°C
RS Stock No. 175-3211
Mfr. Part No.1SBL177082R1322
BrandABB Jokab
$148.93
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 30 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc 45mm 110.5mm 80mm -40 °C, -25 °C
RS Stock No. 175-3232
Mfr. Part No.1SBL367082R1322
BrandABB Jokab
$463.46
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 100 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc 55mm 144mm 119.5mm -40 °C, -25 °C
RS Stock No. 187-5330
Mfr. Part No.191720
BrandEaton
$173.37
Each
units
- - - DILAS - 8 4NO/4NC 4 A 415 V 24 V dc 45mm 117mm 68mm -25°C
RS Stock No. 175-3205
Mfr. Part No.1SBL156082R3022
BrandABB Jokab
$192.51
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 28 A 600 V ac 24 V dc 45mm 110.5mm 80mm -40 °C, -25 °C
RS Stock No. 187-5349
Mfr. Part No.191705 | DILMS25-23(110V50HZ,120V60HZ)
BrandEaton
$208.91
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz 56mm 138mm 85mm -25°C