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庫存編號 766-1918
製造零件編號3TK2851-1AL20
BrandSiemens
HK$2,726.27
單位
- SIRIUS 2P 3TK28 2NO/NC - - 10 A 600 V ac 230 V ac Screw 132mm 90mm 108mm
RS庫存編號 187-5335
製造零件編號191754 & DILMS7-R23(230V50HZ,240V60HZ)
BrandEaton
HK$638.28
單位
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庫存編號 187-5336
製造零件編號191721 & DILMS7-R23(24VDC)
BrandEaton
HK$736.44
單位
3 - 3P DILMS 3NO 5 2NO/3NC 7 A 400 V 24 V dc Screw 45mm 117mm 68mm
RS庫存編號 175-3223
製造零件編號1SBL296082R3022
BrandABB Jokab
HK$1,392.30
單位
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 24 V dc Screw 45mm 119.5mm 80mm
RS庫存編號 187-5330
製造零件編號191720 & DILAS-R44(24VDC)
BrandEaton
HK$767.01
單位
- - - DILAS - 8 4NO/4NC 4 A 415 V 24 V dc Screw 45mm 117mm 68mm
RS庫存編號 187-5358
製造零件編號191738 & DILMS32-R23(110V50HZ,120V60HZ)
BrandEaton
HK$1,637.71
單位
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庫存編號 175-3229
製造零件編號1SBL347082R1322
BrandABB Jokab
HK$1,591.99
單位
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庫存編號 187-5345
製造零件編號191710 & DILMS17-23(RDC24)
BrandEaton
HK$1,071.15
單位
3 - 3P DILMS 3NO 5 2NO/3NC 18 A 400 V 24 → 27 V dc Screw 56mm 138mm 85mm
RS庫存編號 175-3237
製造零件編號1SBL397082R1122
BrandABB Jokab
HK$3,049.45
單位
3 - 3P AFS 3NO 4 2NO/2NC 125 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 70mm 149mm 119.5mm
RS庫存編號 187-5356
製造零件編號191745 & DILMS32-23(230V50HZ,240V60HZ)
BrandEaton
HK$1,196.21
單位
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
RS庫存編號 175-3206
製造零件編號1SBL157082R1122
BrandABB Jokab
HK$783.64
單位
3 - 3P AFS 3NO 4 2NO/2NC 28 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 45mm 110.5mm 80mm
RS庫存編號 175-3208
製造零件編號1SBL176082R3022
BrandABB Jokab
HK$890.15
單位
3 - 3P AFS 3NO 4 2NO/2NC 30 A 600 V ac 24 V dc Screw 45mm 110.5mm 80mm
RS庫存編號 175-3201
製造零件編號1SBL137082R1122
BrandABB Jokab
HK$739.94
單位
3 - 3P AFS 3NO 4 2NO/2NC 25 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 45mm 110.5mm 80mm
RS庫存編號 187-5339
製造零件編號191762 & DILMS9-23(24VDC)
BrandEaton
HK$608.28
單位
3 - 3P DILMS 3NO 5 2NO/3NC 9 A 400 V 24 V dc Screw 45mm 117mm 68mm
RS庫存編號 187-5337
製造零件編號191702 & DILMS9-23(110V50HZ,120V60HZ)
BrandEaton
HK$468.97
單位
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庫存編號 766-1914
製造零件編號3TK2851-1AJ20
BrandSiemens
HK$2,726.27
單位
- SIRIUS 2P 3TK28 2NO/NC - - 10 A 600 V ac 115 V ac Screw 132mm 90mm 108mm
RS庫存編號 782-3009
製造零件編號P40P42D12P1-24
HK$995.78
單位
- - 3PST P40 NO - - 40 A - 24 V dc - - - -
RS庫存編號 187-5346
製造零件編號191736 & DILMS17-R23(110V50HZ,120V60HZ)
BrandEaton
HK$941.96
單位
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庫存編號 175-3226
製造零件編號1SBL297082R1322
BrandABB Jokab
HK$1,348.63
單位
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庫存編號 175-3218
製造零件編號1SBL276082R3022
BrandABB Jokab
HK$1,289.32
單位
3 - 3P AFS 3NO 4 2NO/2NC 50 A 600 V ac 24 V dc Screw 45mm 119.5mm 80mm