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 175-3211
製造零件編號1SBL177082R1322
BrandABB Jokab
HK$655.86
單位
3 - 3P AFS 3NO 4 2NO/2NC 30 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 45mm 110.5mm 80mm
RS庫存編號 175-3209
製造零件編號1SBL177082R1122
BrandABB Jokab
HK$890.15
單位
3 - 3P AFS 3NO 4 2NO/2NC 30 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 45mm 110.5mm 80mm
RS庫存編號 175-3233
製造零件編號1SBL387082R1122
BrandABB Jokab
HK$2,421.62
單位
3 - 3P AFS 3NO 4 2NO/2NC 105 A 600 V ac 20 → 60 V dc, 24 → 60 V @ 50/60 Hz Screw 55mm 144mm 119.5mm
RS庫存編號 187-5332
製造零件編號191740
BrandEaton
HK$456.46
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 187-5352
製造零件編號191737
BrandEaton
HK$1,184.50
單位
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庫存編號 175-3215
製造零件編號1SBL237082R1322
BrandABB Jokab
HK$836.38
單位
3 - 3P AFS 3NO 4 2NO/2NC 45 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 45mm 119.5mm 80mm
RS庫存編號 175-3223
製造零件編號1SBL296082R3022
BrandABB Jokab
HK$1,423.82
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 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 187-5329
製造零件編號191753
BrandEaton
HK$695.55
單位
- - - DILAS - 8 4NO/4NC 4 A 415 V 230 V ac @ 50 Hz, 240 V ac @ 60 Hz Screw 45mm 117mm 68mm
RS庫存編號 175-3207
製造零件編號1SBL157082R1322
BrandABB Jokab
HK$579.66
單位
3 - 3P AFS 3NO 4 2NO/2NC 28 A 600 V ac 100 → 250 V @ 50/60 Hz, 100 → 250 V dc Screw 45mm 110.5mm 80mm