So sánh các loại rơ le cắt và khóa

Rơ le cắt và khóa là loại có tốc độ tác động nhanh, loại rơ le này có 2 cuộn dây (Cuộn set và cuộn reset) do đó khi có điện nó sẽ hút và khóa lại, khi cần giải trừ về trạng thái ban đầu cần phải cấp điện vào cuộn reset

Model BF-3R BF-4R BJ-8R BJ-10R BI-16R BF-4RP BJ-8RP BJ-10RP BI-16RP
Applications Trip and lock-out relay without manual reset button Trip and lock-out relay with manual reset button
High burden configuration YES/NO NO YES
Construction characteristics  
Contact no. 3 C/O 4 C/O 8 C/O 10 C/O 16 C/O 4 C/O 8 C/O 10 C/O 16 C/O
Options No
Weight (g) 300 600 1250 300 600 1400
Dimensions (mm) (A) 45 x (B) 45 x (C) 96.5 (F large Type) (A) 90 x (B) 50 x (C) 100.5 (J large Type) (A) 109 x (B) 50 x (C) 111 (A) 120 x (B) 110 x (C) 105 (A) 45 x (B) 45 x (C) 96.5 (F large Type) (A) 90 x (B) 50 x (C) 100.5 (J large Type) (A) 109 x (B) 50 x (C) 111 (A) 120 x (B) 110 x (C) 105
Coil characteristics  
Standard voltages(1) 24, 48, 72, 110, 125, 220 Vdc / 63.5, 110, 127, 230 Vac (50-60 Hz) 24, 48, 72, 110, 125, 220 Vdc / 63.5, 110, 127, 230 Vac (50-60 Hz) 48, 110, 125, 220 Vdc(3)
Voltage range +10% -20% UN
Pick-up voltage See pick-up voltage / temperature curves for Latching relays
Average consumptions only in the change-over 17W 30W 90W 17W 30W 90W
Operating time  
Pick-up time <10 ms (Vdc) <20 ms (Vac) <10 ms (Vdc) <13 ms (Vac) <10 ms (Vdc) <20 ms (Vac) <10 ms (Vdc) <20 ms (Vac) <10 ms
Contacts  
Contact material  AgNi
Distance between contacts 1.8mm
Permanent current 10A
Instantaneous current 80 A during 200 ms / 200 A during 10 ms
Max. making capacity 30 A / 3 s / 300 Vdc
Breaking capacity See breaking capacity curves (Contact confi guration type A)
Max. breaking capacity See value for 50,000 operations
Umax opened contact 250 Vdc / 400 Vac
Performance data
Mechanical endurance 10 million operations 1 million operations 10 million operations 1 million operations
Operating temperature -40°C +70°C
Storage temperature -40°C +85°C
Max. operating humidity 93% / +40°C
Operating altitude(2) <2000 m
(1) Other voltage upon request
(2) Ask for higher altitudes
(3) Vac voltage upon request
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