Line Protection Devices MCB- S270 & S260 series Conforms to IEC60898, IS8828-10kA and IEC60947-2 ABB- the pioneer in MCB technology brings to you the S270 range based on system pro M, a modular system developed by ABB. The S270 range of MCBs are designed and constructed to guarantee maximum operating safety, increased flexibility, speedy installation and superior aesthetics. Technical Characteristics Standards IS8828 / IEC60898 and IEC60947/2 (for K & Z curve MCB) Breaking capacity 10kA Tripping characteristics B, C, D, K & Z curve Dimensions of single pole 90x17.5x68 (HxWxD) Terminals IP20, housing material with the maximum self-extinguishing degree (V0 level with 1.6 mm thickness) No. of poles 1, 2, 3, 4, 1+NA, 3+NA Rated current In [A] 0.5...63 Rated voltage Un [V] Single pole: 230 / 400 V~, Multi-pole 400 V~ Max. operating voltage UBmax [V] AC: Un + 10 % acc. to UL 1077 and CSA 22.2: 480V~ DC: 1-pole 60 V..., 2-pole 110 V... Min. operating voltage UBmin [V] 12 ~, 12... Terminal size 25 sq. mm Mechanical life 20,000 operations Service life at rated load In < 32 A: 20 000 operations In > 32 A: 10 000 operations Tripping mechanism Trip free mechanism Connections Box terminals on top and combi box terminals on bottom, safe against unintentional touch acc. to DIN VDE 0106 part 100. Suitable for solid or flexible conductors from 0.75 mm2 to 25 mm2 (max.16 mm2 when a max. 3mm busbar is connected; from 0,75mm2 with casing and from 1.5 mm2 without) Storage temperature [0C] Tmax + 700, Tmin - 400 0 Ambient temperature [ C] Tmax + 550, Tmin - 250 Higher rating of MCBs 80A and 100A Energy limitation Class 3 limitation Watt loss Low watt loss per pole Accessories for MCB Description Aux. contact block Aux. contact block Aux. contact block Shunt trip mechanism Shunt trip mechanism Under voltage tripping mechanism Under voltage tripping mechanism Under voltage tripping mechanism Under voltage tripping mechanism Under voltage tripping mechanism Signalling contact + Auxiliary contact Padlock adaptor Padlock adaptor with lock and key 1NO+1NC 2NC 2NO 12-64AC 12-110DC 125-415AC 200DC (24 VAC/DC) (48 VAC/DC) (110 VAC/DC) (220 VAC/DC) (380 VAC/DC) Type Reference S2H11 S2H02 S2H20 S2-A1 S2-A2 S2-UA 24 S2-UA 48 S2-UA 110 S2-UA 220 S2-UA 380 S2-S/H SA1 SA3 39/44