Thermal-magnetic Miniature Circuit Breaker 420-T... Description Single pole and multipole thermal-magnetic miniature circuit breakers (MCBs) in accordance with EN 60947-2, UL 077 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. NEW Typical 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, USPs and elevators. UL 489 version 420-T... EN60947-2 & UL077 version Voltage rating and current rating range to IEC 60947-2 -pole; AC 20 V; A 6 A; 2,, 4-pole; AC 400 V, A 6 A; to UL 077 -pole; AC 277 V; A 6 A; 2,, 4-pole; AC 480 V, A 6 A; to UL 489 -pole; AC 20 V; A 2 A; 2, -pole; AC 240 V, A 2 A; -pole; AC 277 V; A 20 A; 2, -pole; AC 480 V; A 20 A; -pole; DC 60 V; A 2 A; 2-pole; DC 25 V; A 2 A; Typical life Mechanically Electrically to IEC 60947-2 Electrically to UL 077, 2, 22 -pole -pole 2-, -, 4-pole 20,000 cycles,500 cycles U N ; In; cos phi= 0.8 (AC) + 8,500 cycles, mechanical + 2 cycles; U N ; 6 In; cos phi= 0.5; (AC) I N cycles U N I nc cos phi...6 A...6 A...6 A 50 AC 240 V 6 In 0.40-0.50 + 6,000 AC 240 V In 0.75-0.80 50 AC 277 V.5 In 0.75-0.80 + 6,000 AC 277 V In 0.75-0.80 50 AC 480 V 6 In 0.40-0.50 + 6,000 AC 480 V In 0.75-0.80 Typical life and reduced short-circuit rupture capacity to UL 489, test sequence Y 6,000 cycles; U N ; In; cos phi= 0.75-0.8 (AC) + 4,000 cycles, mechanical + 2 operations (O-CO); U N ;,500 A; cos phi= 0.45-0.5 (AC) Rupture capacity Rupture capacity (Ics) to IEC 60947-2 Rupture capacity (Icu) to IEC 60947-2 Short circuit rupture capacity to UL 489, test sequence Z Short circuit current Inc to UL 077, 25 Insulation coordination Protection class Vibration (sinusoidal) test to IEC 60068-2-6, test Fc Shock, test to IEC 60068-2-27, test Ea Corrosion, test to IEC 60068-2-, test Ka Humidity, test to IEC 60068-2-78, test Cab operations (O-CO-CO);U N ; 7,500 A; cos phi= 0.5 (AC) 2 operations (O-CO);U N ; 0,000 A; cos phi= 0.5 (AC) operations (O-CO-CO);U N ; 0,000 A; cos phi= 0.45-0.5 (AC) I N U N I nc cos phi -pole...6 A AC 240 V 7,500 A, U 0.75-0.80 -pole...6 A AC 277 V 5,000 A, U 0.75-0.80 2-, -, 4-pole...6 A AC 480 V 5,000 A, U 0.75-0.80 Overload rupture capacity UL 489, test sequence X I N cycles U N I nc cos phi L/R -pole...2 A 50 AC 20 V 6 In (min. 50 A) 2, - pole...2 A 50 AC 240 V 6 In (min. 50 A) 6 kv / (reinforced insulation at operating area) IP20 ± 0.8 mm (0 57 Hz), 5 g (57 500 Hz) 0 frequency cycles per axis 0 g ( ms) 96 hrs. in 5% salt mist 0.45-0.50 --- 0.45-0.50 --- -pole 20 A 50 AC 277 V 50 A 0.45-0.50 --- 2.-pole 20 A 50 AC 480 V 50 A 0.45-0.50 --- 48 hours at 95% RH, temperature +40 C screw terminals vertical connection possible by means of busbars 20/4 www.e-t-a.de -
Thermal-magnetic Miniature Circuit Breaker 420-T... Dimensions EN 60947-2 / UL077 version Tightening torque 2 Nm max. Cable cross section 5 mm² Ambient temperature: -5 C...+ 70 C rail mounting Mass approx. 6 g per pole (EN 60947-2/UL 077) approx. g per pole (UL 489) Order numbering code Type No. 420 single and multipole thermal-magnetic miniature circuit breaker T rail mounting Number of poles single pole protected 2 double pole protected three pole protected 4 four pole protected* Accessories 0 without K0 screw terminals Characteristic curve B: thermal.05 -.0 In; magnetic.2-4.8 In C: thermal.05 -.0 In; magnetic 6.4-9.6 In D: thermal.05 -.0 In; magnetic 9.6-4.4 In Approvals E EN 60947-2 (TÜV) / UL 077 U UL 489 (only -, 2- & -pole) / EN 60947-2 (TÜV) Current ratings:, 2, 4, 6, 0, 6, 20, 25, 2 (40, 50, 6 A)* 4 P P 2 P P 70.5 ± 0.8 52.9 ± 0.6 5. ± 0.4 7.6 ± 0.2 9 ± 0. 82 max. Dimensions UL 489 version 49.8 ± 0. 5.5 ± 0. 60.2 ± 0. 45 ± 0. 420 - T 0 - K0 C E - 0 A ordering example * not for UL 489 Current ratings and voltage drop @ +25 C 9 ± 0. Voltage drop in V at I N I N (A) 2 4 6 0 6 V.0.5 0.75 0.50 0.0 0.22 I N (A) 20 25 2 40 50 6 V 0.2 0.8 0.9 0.9 0.8 0.2 P 52.9 ± 0.6 2 P 5. ± 0.4 P 7.6 ± 0.2 60.2 ± 0. 60. ± 0. Approvals 6 ± 0.4 45 ± 0. Approval authority / standard: TÜV Rheinland / EN 60947-2 UL / UL077 / CSA-C22.2 No. 25 UL / UL489 / CSA-C22.2 No. 5 5.5 ± 0. - 2 www.e-t-a.de 20/4
Thermal-magnetic Miniature Circuit Breaker 420-T... Time/current characteristics B Curve C Curve 0000 0000 000 000 00 00 Trip time in seconds 0 0 0, Trip time in seconds 0, 0,0 0,0 0,00 0,5 2 45 7 0 20 0 50 70 00 200...times rated current 0,00 0,5 2 45 7 0 20 0 50 70 00 200...times rated current D Curve 0000 000 00 Trip time in seconds 0 0, 0,0 0,00 0,5 2 45 7 0 20 0 50 70 00 200...times rated current Schematic diagrams -pole 2-pole 2 2 4 -pole 4-pole 5 5 7 2 4 6 2 4 6 8 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. 20/4 www.e-t-a.de -
Thermal-magnetic Miniature Circuit Breaker 420-T... Max. operating currents depending on ambient temperature Rated current I N (A) Max. operating currents depending on ambient temperature T (A) -5 C -0 C -25 C -20 C -5 C -0 C -5 C 0 C +5 C +0 C +5 C.27.25.2.2.9.7.5..0.08.06 2 2.54 2.50 2.46 2.42 2.8 2.4 2.0 2.26 2.20 2.6 2.2 4 5.08 5.00 4.92 4.84 4.76 4.68 4.60 4.52 4.40 4.2 4.24 6 7.70 7.58 7.46 7.4 7.2 7.09 6.96 6.8 6.70 6.56 6.42 0.89.62.5.07 2.8 2.5 2.2.9.6..0 6 20.78 20.4 20.08 9.75 9.40 9.05 8.70 8. 7.96 7.58 7.20 20 25.67 25.28 24.88 24.47 24.06 2.64 2.22 22.78 22.4 2.89 2.4 25 2.2.72.22 0.70 0.8 29.65 29.0 28.55 27.98 27.4 26.82 2 4.04 40.46 9.82 9.7 8.5 7.84 7.5 6.47 5.75 5.0 4.0 40 5.6 50.86 50.04 40.2 48.7 47.5 46.6 45.74 44.8 4.90 42.95 50 64.92 6.97 62.92 6.86 60.77 59.67 58.54 57.40 56.2 55.05 5.8 6 8.48 82.06 60.64 79.9 77.72 76.22 74.70 7.4 7.54 69.9 68.24 Rated current I N (A) Max. operating currents depending on ambient temperature T (A) +20 C +25 C +0 C +5 C +40 C +45 C +50 C +55 C +60 C +65 C +70 C.05.02.00 0.97 0.94 0.9 0.89 0.86 0.8 0.80 0.77 2 2.0 2.04 2.00.94.88.82.78.72.66.60.54 4 4.20 4.08 4.00.88.76.64.56.44.2.20.08 6 6.27 6.4 6.00 5.84 5.68 5.52 5.6 5.9 5.0 4.8 4.64 0 0.67 0.4 0.00 9.6 9.24 8.85 8.45 8.0 7.55 7.06 6.55 6 6.80 6.40 6.00 5.55 5. 4.66 4.20.7.2 2.70 2.75 20 20.96 20.47 20.00 9.47 8.95 8.42 7.87 7.0 6.7 6.0 5.47 25 26.22 25.6 25.00 24. 2.67 2.00 22.28 2.56 20.80 20.02 9.2 2.54 2.77 2.00.7 0.4 29.48 28.69 27.69 26.75 25.78 24.77 40 4.98 40.99 40.00 8.9 7.85 6.75 5.6 4.4.2.95 0.6 50 52.56 5.28 50.00 47.82 46.24 44.8 4. 4.8 40.2 8.58 5.77 6 66.5 64.78 6.00 60. 58.9 56.2 54.6 52.0 49.8 47.50 4.05-4 www.e-t-a.de 20/4
Aux. contact module X420-S for circuit breaker type 420-T... Description Add-on module for circuit breaker type 420-T. The auxiliary switch has a change-over contact as signal contact and is operated with actuation of the MCB. Typical applications Status monitoring of MCB and/or the connected loads. The add-on module is mounted on the left side of the MCB (seen from the front). For mounting, the MCB has to be in the OFF position. Order numbering code Type No. X420 Add-on module for type 420-T Module type S aux. contact switch Style 0 change-over contact screw terminals Key for nominal output A AC voltage DC voltage Rated Rated Rated Rated voltage current voltage current 240 V 6 A 24 V 6 A 45 V A 48 V 2 A 0 V A Delivery condition: L supplied separately, has to be mounted by the user X420- S 0 A L ordering example Approvals Approval authority / standard: TÜV (IEC 60947-5) Schematic diagrams principle 66 ± 0.5 60.4 ± 0.5 2 4 8 ± 0.5 45 ± 0.5 85.8 ± 0.5 420-T... Note As soon as the auxiliary contact module is mounted on the MCB, the terminals and 4 are connected when the MCB is in ON condiiton. and 2 are connected when the MCB is in OFF condition. 5.5 ± 0.5 X420-S 9 Voltage ratings: Current ratings: Typical life Tightening torque AC 240 V AC 45 V DC 24 V DC 48 V DC 0 V 6 A A 6 A 2 A A 20,000 cycles Nm max. Ambient temperature -5 C...+ 70 C Width Mass 9 mm approx. 29 g 20/4 www.e-t-a.de - 5
Fault indicator module X420-A for circuit breaker type 420-T... Description Add-on module for MCB type 420-T. The fault indicator has a change-over contact as signal contact. There will only be a signal when the MCB has tripped on grounds of a failure (overload, short circuit) and not when the MCB has been switched on or off manually. By actuating the reset lever on the front the tripping signal is acknowledged. Typical applications Status monitoring of MCB and/or the connected loads. The add-on module is mounted on the left side of the MCB (seen from the front). For mounting, the MCB has to be in the OFF position. Schematic diagrams 9 94 92 principle 8 ± 0.5 45 ± 0.5 Note As soon as the auxiliary contact module is mounted on the MCB, the terminals 9 and 92 are connected when the MCB is in ON condition; the terminals 9 and 94 are connected when the MCB has tripped electrically; the terminals 9 and 92 are connected when the MCB has been tripped manually; at the same time the terminals 9 and 94 do not have contact. 9 Order numbering code Type No. X420 add-on module for type 420-T Module type A fault indicator module Style 0 change-over contact screw terminals Key for nominal output A AC voltage DC voltage Rated Rated Rated Rated voltage current voltage current 240 V 6 A 24 V 6 A 45 V A 48 V 2 A 0 V A Delivery condition: L supplied separately, has to be mounted by the user 66 ± 0.5 60.4 ± 0.5 85.8 ± 0.5 420-T... 5.5 ± 0.5 X420-A X420-A 0 A L ordering example Voltage ratings: Current ratings: AC 240 V AC 45 V DC 24 V DC 48 V DC 0 V 6 A A 6 A 2 A A Typical life 20,000 cycles Tightening torque Nm max. Ambient temperature -5 C...+ 70 C Width Mass 9 mm approx. 29 g - 6 www.e-t-a.de 20/4
Working current module X420-FA for circuit breaker type 420-T... Description Schematic diagrams Add-on module for MCB type 420-T. The working current module serves for remote trip of the MCB and for signalling whether the MCB was tripped electrically or manually. N / - C L / + C2 Typical applications Electrical remote trip of safety equipment with simultaneous monitoring of MCB status or its connected load. 4 FA 2 principle The add-on module is mounted on the left side of the MCB (seen from the front). For mounting, the MCB has to be in the OFF position. When auxiliary contact module/fault indicator module and a working current module are mounted at the same time, the working current module always has to be mounted first. 8 ± 0.5 45 ± 0.5 8 max. Order numbering code Type No. X420 add-on module for type 420-T Module type F working current module Style A magnetic coil and auxiliary switch (changeover) physically isolated from the MCB screw terminals Delivery condition: L supplied separately, has to be mounted by the user Rated voltage AC 240 V AC 45 V DC 24 V DC 48 V 66 ± 0.5 60. ± 0.5 5.5 ± 0.5 8 ± 0.5 420-T... X420-FA X420- F A L - AC 240 V ordering example Voltage ratings: AC 45 V AC 240 V DC 48 V DC 24 V Min. trip voltage AC 200 V AC 60 V DC 24 V DC 6 V Power consumption Rated current of auxiliary contact 240 W 240 W 200 W 200 W A 6 A 2 A 6 A Trip time < 0 ms Typical life 20,000 cycles Tightening torque Nm max. Ambient temperature -5 C...+ 70 C Width 8 mm Mass approx. 60 g 20/4 www.e-t-a.de - 7
Thermal-magnetic Miniature Circuit Breaker 420-T... - 8 www.e-t-a.de 20/4