BUREAU OF INDIAN STANDARDS

Type/Size/Grade/Variety and Brand Name for CML No.       4100202657

Date : 01-04-2025


Brand Name :

Type/Size/Grade/Variety :

Name of the product: Low-Voltage Switchgear and Controlgear Part 2 Circuit-Breakers Model No. 5SY4., 5SY6..., 5SY7.. Rated Voltages (Cl. 4.3.2) Rated operational voltage (Ue): 230Vac, 400Vac Rated insulation voltage (Ui): 440Vac Rated impulse withstand voltage (Uimp): 4kV Rated Currents (Cl. 4.3.3) Conventional free-air thermal current (Ith): Characteristic A: 0,5; 1; 1.6; 2; 3; 4; 6; 8; 10; 13; 16; 20; 25; 32; 40; 50; 63 A Characteristic B: 1; 1,6; 2; 3; 4; 6; 8; 10; 13; 16; 20; 25; 32; 40; 50; 63 A Characteristic C: 0,3; 0,5; 1; 1.6; 2; 2,5; 3; 3,5; 4; 5; 6; 8; 10; 13; 15; 16; 20; 25; 30; 32; 35; 40; 45; 50; 60; 63 A Characteristic D: 0,3; 0,5; 1; 1.6; 2; 3; 4; 6; 8; 10; 13; 16; 20; 25; 32; 40; 50; 63 A Rated Currents (Cl. 4.3.3) Conventional free-air thermal current (Ith): 0.3,0.5,1,1.6,2,2.5,3,3.5,4,5,6,8, 10, 13,15, 16,20, 25,30,32,35,40,45,50,60,63? Conventional enclosed thermal current (Ithe): NA Rated current (In): =Ith Short Circuit Currents (Cl. 4.3.3) Current rating for circuit-breakers (Ics, Icu): IcS (KA): 8,10,13,23,27,30,38KA Icu(KA): 10,15,20,25,30,35,40,50KA Current setting or range of settings: Characteristic A: 2,5 x In Characteristic B: 4 x In Characteristic C: 6,5 x In 2,5; 3,5; 5; 30; 32; 50 A) Characteristic C: 7 x In (1,6; 40; 45; 60; 63 A) Characteristic C: 7,5 x In (1; 4; 8; 20 A) Characteristic C: 8 x In (0,3; 0,5; 2; 3; 6; 10; 13; 15; 16; 25; 35 A) Characteristic D: 12,5 x In (0,3; 63 A) Characteristic D: 13 x In (1; 1,6; 4; 13 A) Characteristic D: 13,5 x In (0,5; 2 A) Characteristic D: 14 x In 6; 20; 25; 32; 40; 50A) Characteristic D: 14,5 x In (3; 16 A) Characteristic D: 15,5 x In (8 A) Characteristic D: 16 x In (10 A) reference temperature 45°C Rated Frequency (Cl. 4.3.4) 50/60 Hz. Rated duty (Cl. 4.3.5) uninterrupted duty Selectivity (Cl. 4.4) Category type, A Interrupting Medium (Cl. 3.2) Air-break Method of installation (Cl. 3.7) Fixed Method of controlling the operating mechanism (Operation) (Cl. 3.4) Independent manual Design / Construction Type (Cl. 3.3) Moulded case Suitability for isolation (Cl. 3.5) Suitable for isolation Provision for maintenance (Cl. 3.6) Non-maintainable Type of Releases (Cl. 4.7) Thermos magnetic Type of Supply (ac / dc) (Cl. 4.2) Single Phase AC (For 1 Pole, 1p+N & 2Pole) & Three phase AC (For 3 Pole, 4 Pole & 3Pole+N) Number of Pole (Cl. 4.2) 1,2,3,4,1+N,3+N Pollution Degree (Cl. 6) Pollution Degree 3 Control Circuits (Cl. 4.5) NA Auxiliary circuits (Cl. 4.6) NA Integral fuses (Cl. 4.8) NA Degree of Protection (Cl. 3.8) IP20 "Following varieties may be considered for GoL to use BIS Standard Mark as per IS/IEC 60947-2 : 2016:" Name of the product: Low-Voltage Switchgear and Controlgear Part 2 Circuit-Breakers Model No. 55J4... Rated Voltages (Cl. 4.3.2) : Rated operational voltage (Ue): 230Vac, 400Vac Rated insulation voltage (Ui): 440Vac Rated impulse withstand voltage (Uimp): 4kV Rated Currents (Cl. 4.3.3) Conventional free-air thermal current (Ith) : Characteristic B: 6; 10; 13; 15; 16; 20, 25; 30; 32; 35; 40; 45; 50; 60; 63 A Characteristic C: 0,3; 0,5; 1; 1.6; 2; 3; 4; 5; 6; 8 10; 13; 15; 16; 20, 25; 30; 32; 35; 40; 45; 50; 60; 63 A Characteristic D: 0,3; 0,5; 1; 1.6; 2; 3; 4; 5; 6; 8, 10; 16; 20, 25; 32; 40; 50; 63 A Rated Currents (CI. 4.3.3) : Conventional free-air thermal current (Ith): 0.3,0.5, 1, 1.6,2,3,4,5,6,8, 10,13, 15, 16,20, 25,30,32,35,40,4 5,50,60,63A Conventional enclosed thermal current (Ithe):NA Rated current (In): =Ith Short Circuit Currents (Cl. 4.3.3) : Current rating for circuit-breakers (Ics, Icu): Ics (KA): 7.5 kA cu(kA): 10 kA Current setting or range of settings: Characteristic B: 4 x In Characteristic C: 6,5 x In (5 A) Characteristic C: 7,5 x In (0,5; 1; 1,6; 2; 3; 4; 6; 8; 10; 13; 20 ... 63 A) Characteristic C: 8 x In (16 A) Characteristic C: 8,5 x In (0,3; 15 A) Characteristic D: 8,5 x In (0,3 A) Characteristic D: 10 x In (8 A) Characteristic D: 11 x In (1;35 A) Characteristic D: 11,5 x In (32 A) Characteristic D: 12 x In (30; 63 A) Characteristic D: 12,5 x In (50; 60 A) Characteristic D: 13,5 x In (0,5 A) Characteristic D: 14 x In (1,6; 2; 4; 6; 10; 25; 40; 45 A) Characteristic D: 14,5 x In (3 A) Characteristic D: 16 x In (5 A) reference temperature 30°C Rated Frequency (Cl. 4.3.4) 50/60 Hz.