Thermal automotive Mini-CBE 1620-... Description Single pole, thermal miniaturised circuit breaker designed for automotive applications. Fits into fuse blocks designed to ISO 8820-3, Type F. Automatic reset (for DC 12 V only) and open circuit (modified reset to SAE) version optional. Open circuit version ensures contacts staying open as long as power is on. The circuit breaker will reset after the load is removed. Particularly suitable for installation in inaccessible locations. Current ratings correspond to those of blade fuses. Clear colour coding of the ratings: blade fuse and circuit breaker of the same colour have the same rating. 1 Meets the requirements of SAE J553. 1620-1/-2 1620-3 1620-3H US patent number: US 8,576,042,B2 Technical data Typical applications Voltage rating 1620-1/-2: DC 12 V 1620-3/-3H: DC 12 V, DC 24 V Protection of electrical systems of passenger cars, trucks, buses, Max. voltage rating 1620-1/-2: DC 14.5 V watercraft, extra low voltage wiring systems. 1620-3/-3H: DC 29.0 V Current ratings DC 12 V: 5...30 A DC 24 V: 5...25 A Ordering information Service short-circuit breaking capacity 300 operations at 2 x I N Type No. Ambient temperature -40...+85 °C (-40…+185 °F) 1620 single pole thermal Mini-CBE with standard characteristic curve (for higher temperatures please enquire) Version, according to SAE J553 Reset period for 1620-1 1 type 1, DC 12 V automatic reset (at 23 °C) ≤ 15 s 2 type 2, DC 12 V modified reset 3 type 3, DC 24 V with reset button Reset period for 1620-2 3H type 3*, DC 24 V with reset button and manual release facility (at 23 °C) after 5 sec at Current ratings rated voltage < 35 s 5 7.5 10 15 20 25 30 A Degree of protection (IEC 60529) operating area IP40 (-3) 1620 - 1 - 10 A ordering example operating area IP50 (-1, -2) terminal area IP00 Ultimate short-circuit Current ratings, typical voltage drop values and colour coding breaking capacity ≥ 3 break operations at 150 A, or ≥ 1 break operation at 2,000 A Current rating (A) Voltage drop (mV) Housing cap colour Vibration 10 g (57-500 Hz), ± 0.38 mm (10-57 Hz) to IEC 60068-2-6, test Fc 5 < 150 light brown 10 frequency cycles/axis SAE-J553, Step No. 14, § 4.2.7.1.5 7.5 < 150 brown Shock 50 g (11 ms) 10 < 150 red to IEC 60068-2-27, test Ea SAE-J553, Step No. 14, § 4.2.7.1.6 15 < 150 blue Corrosion 48 hrs in 5 % salt mist, 20 < 150 yellow to IEC 60068-2-11, test Ka SAE-J553, Step No. 14, § 4.2.7.1.3 25 < 150 white Humidity 240 hrs in 95 % RH, 30 < 150 light green to IEC 60068-2-78, test Cab SAE-J553, Step No. 14, § 4.2.7.1.2 Mass approx. 3 g Caution: It is good practice to switch off the vehicle’s ignition system before manually releasing or re-setting the circuit breaker. Free travel of the reset button must be ensured! Please ensure to push in the actuator smoothly and completely. Depending on the socket used and with the 30 A device carrying a full load, the temperatures at the terminals may rise above the allowed SAE value. 1725 www.e-t-a.de 1 Thermal automotive Mini-CBE 1620-... Dimensions Internal connection diagrams 1620-1 1620-2 1620-3 1620-3H 1620-1 / 1620-2 13.3 7 1 .276 1 1 1 .524 2 2 2 2 GERMANY 1 Typical time/current characteristic curve at +23 °C / +73.4 °F 5...30 A -40 °C 10000 4.5 +85 °C 0.8 .177 +23 °C 2.8 2.8 .032 3.8 .110 10.9 .149 .429 12.7 1000 .500 1620-3 13.3 .524 3.5 .138 100 0.6 .024 2 1.8 .079 .071 10 1 GERMANY 0.1 0.4 0.6 0.8 12 4 6 8 10 20 40 times rated current The time/current characteristic curve depends on the ambient temperature prevailing. In order to eliminate nuisance tripping, please multiply the circuit breaker current ratings by the derating factor shown below. See also section Technical information. Ambient temperature °F -40 -22 -4 +14 +32 +50 1620-3H 13.3 Ambient temperature °C -40 -30 -20 -10 0 +10 .524 7 4.8 3.5 .275 Derating factor 0.73 0.78 0.82 0.86 0.91 0.95 .189 .138 Ambient temperature °F +73.4 +104 +122 +140 +158 +185 Ambient temperature °C +23 +40 +50 +60 +70 +85 Derating factor 1 1.09 1.16 1.25 1.33 1.43 GERMANY mm This ist a metric design and millimeter dimensions take precedence ( inch) All dimensions without tolerances are for reference only. In the interest of improved design, performance and cost effectiveness the right to make changes in these specifications without notice is reserved. Product markings may not be exactly as the ordering codes. Errors and omissions excepted. 2 www.e-t-a.de 1725 25 30.2 25 .984 1.19 .984 11.6 11.6 2 11.6 .457 .457 .079 .457 24.95 2 ±0.5 .982 0.8 ON .079 ±0.5 0.8 ON ±.019 .031 ON ±.019 .031 ON ±0.5 4.5 OFF ±0.5 4.5 OFF ±.019 .177 OFF ±.019 10.4 .177 OFF .409 7.5 .295 trip time in seconds