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www.e-t-a.de 1 Thermal-magnetic Miniature Circuit Breaker 4230-T... 1638 1 Rupture capacity to IEC/EN 60947-2 (Ics) AC 7,500 A / DC 10,000 A to IEC/EN 60947-2 (Icu) AC/DC 10,000 A to UL 489 AC/DC 10,000 A Insulation coordination 6 kV/3 (reinforced insulation at operating area) Degree of protection IP20 Vibration (sinusoidal) test to IEC 60068-2-6, test Fc ± 0.38 mm (10–57 Hz), 5 g (57–500 Hz) 10 frequency cycles per axis Shock, test to IEC 60068-2-27, test Ea 30 g (11 ms) Corrosion, test to IEC 60068-2-11, test Ka 96 hrs in 5% salt mist Humidity, test to IEC 60068-2-78, test Cab 48 hours at 95% RH, temperature +40°C Terminals screw terminals Vertical connection possible by means of busbars Tightening torque 2 Nm max. Cable cross section ≤35 mm² Ambient temperature: -35°C...+ 70°C Mounting rail mounting Mass approx. 116 g per pole (EN 60947-2/ UL 1077) approx. 131 g per pole (UL 489) Description Typical applications Technical Data Technical Data Single pole and multipole thermal-magnetic miniature circuit breakers (MCBs) in accordance with EN 60947-2, UL 1077 and UL 489 for DIN rail mounting, with toggle actuation, visual status indication and high rupture capacity. A positively trip-free snap action mechanism ensures reliable switching behaviour. A range of trip characteristics and add-on modules allow a great variety of applications. Protection of cables, motors, generators and transformers, thyristors and silicon rectifiers. Protection of computers and their peripheral equipment, industrial process control systems, telecommunications equipment, power supplies. 4230-T... UL 489 version IEC/EN60947-2 & UL1077 version Voltage rating and current rating range to IEC/EN 60947-2 1-pole: AC 240 V; 1 A…63 A; 2, 3, 4-pole: AC 415 V, 1 A…63 A; 1-pole: DC 80 V, 1 A...63 A 2-pole: (2 poles connected in series) DC 125 V, 1...63 A to UL 1077 1-pole: AC 277 V; 1 A…63 A; 2, 3, 4-pole: AC 480Y/277 V, 1 A…63 A; 1-pole: DC 60 V; 1 A...63 A; 2-pole (2 poles connected in series): DC 125 V; 1 A...63 A; to UL 489 1-pole: AC 120 V; 1A…63 A; 2, 3-pole: AC 240 V, 1 A…63 A; 1-pole: AC 277 V; 1 A…32 A; 2, 3-pole: AC 480Y/277 V; 1 A…32 A; 1-pole: DC 60 V; 1 A…63 A; 2-pole (2 poles connected in series); DC 125 V; 1 A…63 A; Typical life Mechanically 20,000 cycles Electrically 6,000 cycles to UL1077 Number of poles Un In TC OL SC 1-pole AC 240 V 1...63 A 1 1 7.5 kA, U1 1-pole AC 277 V 1...63 A 1 0 5 kA, U1 2-, 3-, 4-pole AC 480 V 1...63 A 1 1 5 kA, U1 1-pole DC 60 V 1...63 A 1 0 7.5 kA, U1 2-pole in series DC 125 V 1...63 A 1 0 7.5 kA, U1 Approvals Approval authority Standard Rated voltage Current ratings TÜV IEC/EN 60947-2 AC 240/415 V DC 80 V DC 125 V 1...63 A 1...63 A (1-pole) 1...63 A (2 poles in series) UL UL 1077 / CSA-C22.2 No. 235 AC 480Y/277 V DC 60 V DC 125 V 1...63 A 1...63 A (1-pole) 1...63 A (2 poles in series) UL UL 489 / CSA-C22.2 No. 5 AC 240 V AC 480Y/277 V DC 60 V DC 125 V 1...63 A 1...32 A 1...63 A (1-pole) 1...63 A (2 poles in series)

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