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. 766-1891
Mfr. Part No.3TK2850-1AJ20
BrandSiemens
$709.57
Each
units
- SIRIUS 3P 3TK28 3NO - - 10 A 600 V ac 115 V ac 132mm 90mm 108mm -
RS Stock No. 187-5343
Mfr. Part No.191704 | DILMS17-23(110V50HZ,120V60HZ)
BrandEaton
$136.92
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 110 V ac @ 50 Hz, 120 V ac @ 60 Hz 56mm 138mm 85mm -25°C
RS Stock No. 175-3211
Mfr. Part No.1SBL177082R1322
BrandABB Jokab
$119.45
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. 187-5326
Mfr. Part No.191739 | DILAS-44(230V50HZ,240V60HZ)
BrandEaton
$79.94
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. 187-5336
Mfr. Part No.191721 | DILMS7-R23(24VDC)
BrandEaton
$130.87
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc 45mm 117mm 68mm -25°C
RS Stock No. 187-5359
Mfr. Part No.191759 | DILMS32-R23(230V50HZ,240V60HZ)
BrandEaton
$291.07
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 32 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz 56mm 138mm 85mm -25°C
RS Stock No. 187-5332
Mfr. Part No.191740 | DILMS7-23(230V50HZ,240V60HZ)
BrandEaton
$81.48
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz 45mm 117mm 68mm -25°C
RS Stock No. 175-3203
Mfr. Part No.1SBL137082R1322
BrandABB Jokab
$95.16
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 25 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. 175-3233
Mfr. Part No.1SBL387082R1122
BrandABB Jokab
$502.96
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 105 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. 175-3231
Mfr. Part No.1SBL367082R1122
BrandABB Jokab
$433.10
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. 175-3237
Mfr. Part No.1SBL397082R1122
BrandABB Jokab
$633.36
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 125 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz 70mm 149mm 119.5mm -40 °C, -25 °C
RS Stock No. 175-3206
Mfr. Part No.1SBL157082R1122
BrandABB Jokab
$176.03
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 28 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. 187-5333
Mfr. Part No.191761 | DILMS7-23(24VDC)
BrandEaton
$106.71
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc 45mm 117mm 68mm -25°C
RS Stock No. 187-5351
Mfr. Part No.191711 | DILMS25-23(RDC24)
BrandEaton
$237.15
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. 187-5344
Mfr. Part No.191743 | DILMS17-23(230V50HZ,240V60HZ)
BrandEaton
$117.70
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. 175-3218
Mfr. Part No.1SBL276082R3022
BrandABB Jokab
$253.80
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. 187-5347
Mfr. Part No.191757 | DILMS17-R23(230V50HZ,240V60HZ)
BrandEaton
$167.40
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. 175-3209
Mfr. Part No.1SBL177082R1122
BrandABB Jokab
$162.20
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 30 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. 175-3205
Mfr. Part No.1SBL156082R3022
BrandABB Jokab
$176.03
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. 175-3239
Mfr. Part No.1SBL407082R1122
BrandABB Jokab
$594.39
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 130 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz 70mm 149mm 119.5mm -40 °C, -25 °C
Related Products
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Description:
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The 3-Pole ABB Jokab safety contactor relay has ...
Description:
The 3-Pole ABB Jokab safety contactor relay has a coil voltage 100VAC to 250VAC at 50/60Hz and 100VDC to 250VDC It has a contact current rating 100A and contact voltage rating 600VAC. It is with the front marked symbol that ...
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. ...
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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 ...