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. 782-3049
Mfr. Part No.PRDA-11AGA-120
R 1,382.90
Each
units
- - DPDT PRD - - - 30 A - 120 V ac - - - -
RS stock no. 766-1918
Mfr. Part No.3TK2851-1AL20
BrandSiemens
R 4,060.00
Each
units
- SIRIUS 2P 3TK28 2NO/NC - - 10 A 600 V ac 230 V ac Screw 132mm 90mm 108mm
RS stock no. 183-4603
Mfr. Part No.100S-E205KD12C
R 11,558.36
Each
units
- - - - - - - - - - - - - -
RS stock no. 175-3241
Mfr. Part No.1SBL407082R1322
BrandABB Jokab
R 6,756.55
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 130 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 70mm 149mm 119.5mm
RS stock no. 183-4604
Mfr. Part No.100S-E265ED12C
R 20,610.86
Each
units
3 - - 100S-E - 3 2NC/NO 265 A - 100 → 250 V ac/dc Screw 140mm 195.5mm 225mm
RS stock no. 187-5346
Mfr. Part No.191736 & DILMS17-R23(110V50HZ,120V60HZ)
BrandEaton
R 1,873.29
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. 187-5347
Mfr. Part No.191757 & DILMS17-R23(230V50HZ,240V60HZ)
BrandEaton
R 1,919.30
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. 776-8472
Mfr. Part No.100S-C16EJ23C
R 2,237.98
Each
units
3 - 3P 100S-C 2NO/3NC 5 2NO/3NC 16 A 690 V ac 24 V dc - 81mm 45mm 125.5mm
RS stock no. 187-5342
Mfr. Part No.191722 & DILMS9-R23(24VDC)
BrandEaton
R 1,560.70
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 9 A 400 V 24 V dc Screw 45mm 117mm 68mm
RS stock no. 422-6874
Mfr. Part No.700S-CF620KFC
R 1,580.54
Each
units
8 - 4P 700S-CF 6NO/2NC 4 3NO/NC 10 A 690 V ac 230 V ac Wire 119.5mm 45mm 81mm
RS stock no. 187-5349
Mfr. Part No.191705 | DILMS25-23(110V50HZ,120V60HZ)
BrandMoeller
R 2,013.36
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. 175-3203
Mfr. Part No.1SBL137082R1322
BrandABB Jokab
R 1,084.54
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. 175-3220
Mfr. Part No.1SBL277082R1322
BrandABB Jokab
R 1,885.71
Each
units
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 45mm 119.5mm 80mm
RS stock no. 422-6329
Mfr. Part No.100S-C09KJ23C
R 1,299.88
Each
units
3 - 3P 100S-C 5NO/3NC 5 2NO/3NC 9 A 525 V ac 24 V ac Screw 81mm 45mm 119.5mm
RS stock no. 187-5343
Mfr. Part No.191704 & DILMS17-23(110V50HZ,120V60HZ)
BrandEaton
R 1,383.51
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. 187-5354
Mfr. Part No.191725 & DILMS25-R23(RDC24)
BrandEaton
R 3,535.74
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS stock no. 183-4605
Mfr. Part No.100S-E265KD12C
R 20,104.93
Each
units
3 - - 100S-E - 3 2NC/NO 265 A - 100 → 250 V ac/dc Screw 140mm 180mm 225mm
RS stock no. 776-8481
Mfr. Part No.100S-C43EJ22C
R 4,693.94
Each
units
3 - 3P 100S-C 2NO/2NC 4 2NO/2NC 43 A 690 V ac 24 V dc - 81mm 45mm 146mm
RS stock no. 187-5350
Mfr. Part No.191744 & DILMS25-23(230V50HZ,240V60HZ)
BrandEaton
R 1,892.38
Each
units
3 - 3P DILMS 3NO 5 2NO/3NC 25 A 400 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 56mm 138mm 85mm
RS stock no. 782-3009
Mfr. Part No.P40P42D12P1-24
R 2,384.51
Each
units
- - 3PST P40 NO - - 40 A - 24 V dc - - - -