High Performance Thermal Circuit Breaker 4120-... Description Single pole, miniaturised thermal circuit breaker with trip-free mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). Threadneck panel mounted, temperature-compensated, with optional auxiliary contacts. Fully approved for commercial aircraft and similar requirements. Various dummies are available without protective function, allowing connection of pre-installed wiring without loads. Typical applications Extra low voltage wiring systems on all types of vehicles for land, 1 sea and air. 4120-... Ordering information Technical data Type No. 4120 single pole, with temperature compensation For further details please see: www.e-t-a.de/ti e Mounting Voltage rating AC 115 V (300 Hz to 800 Hz) DC 28 V G threadneck panel mounting Threadneck design Current rating range 1...25 A 1 M12x1x6.3 (aluminium) Auxiliary circuit 1 A, DC 28 V 2 7/16-32 UNx6.3 (aluminium) Typical life 20,000 operations mechanical, or Number of poles 5,000 operations at 1 x I N 1 1-pole, thermally protected Ambient temperature -55C ...+125C (-67...+257 F) Hardware for threadneck 0 without hardware Insulation co-ordination rated impulse pollution 1 hex nut M12x1, corrugated washer 12/15, fitted (IEC 60664 and 60664A) withstand voltage degree 3 hex nut M12x1 (aluminium), 1.5 kV 3 serrated lock washer 12.1/17.2, bulk shipped Dielectric strength 4 hex nut 7/16-32UN (aluminium), (IEC 60664 and 60664A) test voltage serrated lock washer 11.3/14.9, fitted operating area AC 1,500 V Terminal design (main terminals) main to aux. circuit AC 1,500 V K1 screw terminals with metric thread K14 (M4) Insulation resistance > 100 M (DC 500 V) J1 screw terminals with inch thread J14 (8-32UNC-2B) J2 screw terminals with inch thread J17 (8-32UNC-2B) Interrupting capacity I AC 115 V (400 Hz): 1...4 A 1,000 A cn J3 screw terminals with inch thread J25 (6-32UNC-2B) 5...25 A 2,000 A DC 28 V: 1...25 A 6,000 A P1 blade terminals 6.3x0.8, DIN 46244, silver-plated Characteristic curve Degree of protection operating area IP40 M1 thermal, 1.15 - 1.4 I N (IEC 60529/DIN 40050) terminal area IP00 Terminal screws Vibration 10 g (57-2000 Hz), 0.76 mm (5-57 Hz) A Phillips screw M4x6, fitted (sinusoidal) to ISO 7137, EN 2350 para. 5.3.1 B Phillips screw 8-32UNC-2Ax6, fitted 2 Vibration 1...2.5 A: 0.04 g /Hz 1,5 dB 7.3 g eff C Phillips screw 6-32UNC-2Ax6 (MS 51957-26) 2 3...20 A: 0.06 g /Hz 1,5 dB 9 g eff K hex screw with Phillips head 8-32UNC-3Ax7.6, fitted to ISO 7137, EN 2350 para. 5.3.1 M hex screw with Phillips head 8-32UNC- Acceleration 17 g, to ISO 2669, EN 2350 para. 5.3.3 3Ax7.6, bulk shipped Z without terminal hardware Shock 50 g (11 ms), to ISO 7137, Terminal washers EN 2350 para. 5.3.2 0 without lock washer Corrosion 48 hours at 5 % salt mist 1 wave washer A4, fitted to ISO 7137, EN 2350 para. 5.4.2 2 lock washer 4.3, fitted Humidity 240 hours at 95 % RH, 4 lock washer 3.7 (MS 35338-136) to ISO 7137, EN 2350 para. 5.4.3 5 lock washer 4.3/9, fitted 6 lock washer 4.3/9, bulk shipped Explosion to VG 95210, sheet 10 Auxiliary contact Altitude 22,000 m above sea level S0 without auxiliary contact Mass approx. 20.6 g with terminal screws, S1 with auxiliary contact (connector without -Si EN 3155-016M2018) (NC) approx. 24.6 g with terminal screws, S5 with polarized auxiliary contact (NC) with -Si Barrier Z without barrier Colour of the push button Preferred types G green to EN (e. g. 2 1/2) N black to EN (e. g. 2 1/2) Current ratings Preferred types Standard current ratings (A) 1...25 A 1 2 3 5 7.5 10 15 20 25 4120 - G 1 1 1 - K1 M1 - A 1 S0 Z N - 10 A ordering example 4120-G214-J1M1-B2S0ZN x x x x x x x x x (MS3320) Please be informed that we have minimum ordering quantities to be observed. 4120-G111-K1M1-A1S0ZN x x x x x x x x x (EN 2495/VG93345 T06) 2034 www.e-t-a.de 15 5 5 5 max. 2 max .079 max. 3 max .118 min. 4.6 min .181 max. 3 max .118 max. 1.5 max .059 45 45 45 45 High Performance Thermal Circuit Breaker 4120-... Standard current ratings and typical volt drop values Dimensions 4120-G1.. Current Volt drop Current Volt drop 4120-G111-K1M1-A1S0ZN (EN2495-M) (VG95345 T06) rating (A) (mV) rating (A) (mV) tightening torque max. 5 Nm 10 M12x1 .394 1 1100 7.5 250 8.4 black .331 2 550 10 230 white 2.5 460 15 200 lock washer 3 440 20 190 4 380 25 190 type No. 5 260 1 2 1 Approvals (configurations) 5 terminals: .197 1 - input 12.8 8.5 2 - output .335 .504 Authority Standard Voltage ratings Current ratings 9.5 terminal screw ISO 7045-M4x6 .374 with lock washer DIN 137-B4 UL UL 1077 DC 50 V 1 A25 A 0.8 tightening torque max. 1.7 Nm .031 Bw VG 95345, AC 115 V, 400 Hz 1 A25 A part 6 DC 28 V 1 A25 A Bw EN 2495-U / AC 115 V, 400 Hz 1 A25 A 19.5 -M DC 28 V 1 A25 A .768 current rating in A location pin Bw LN 29887 AC 115 V, 400 Hz 5 A25 A 4120-G11.-J2M1-K5S0ZN (EN2495-U, EN3773-004 D) DC 28 V 5 A25 A tightening torque max. 5 Nm 10 M12x1 Bw EN 3773-004 AC 115 V, 400 Hz 1 A25 A .394 8.4 DC 28 V 1 A25 A .331 black Dep. of MS 3320 AC 115 V, 400 Hz 1 A20 A white the Navy DC 28 V 1 A20 A serrated lock washer Airbus EN 2995-004 AC 115 V, 400 Hz 1 A25 A DC 28 V 1 A25 A type No. Airbus EN 2995-005 AC 115 V, 400 Hz 1 A25 A DC 28 V 1 A25 A 2 1 Dimensions 4120-... terminals: 1 - input 18 10.5 2 - output .709 .413 9.5 terminal screw H8-32UNC-3Ax7.6 4120-G214-J1M1-B2S0ZN (MS 3320) .374 to FED-STD-H28/2A with lock washer 0.8 tightening torque max. 5 Nm 10 tightening torque max. 1.7 Nm .031 7/16-32-UN-2A THD .394 8.4 black .331 white 19.5 .768 serrated current rating in A location pin lock washer 4120-G112-J2M1-K5S1ZG - 4120-G112-J2M1-K5S5ZG (EN2995-004) (EN2995-005) type No. tightening torque max. 5 Nm 10 M12x1 .394 2 1 8.4 green .331 5 white terminals: .197 serrated lock 1 - input 12.8 8.5 washer 2 - output .335 .504 terminal screw MS 51957-41 (8-32 UNC-2A) with lock washer MS 35338-137 type No. 3 4 tightening torque max. 1.7 Nm 9.5 min. 8 .374 min .315 2 11 0.8 current rating in A .031 10.5 18 terminals: .413 1 - input 25 .709 19.5 2 - output aux. contact .413 9.5 .768 (connector to terminal screw H8-32UNC-3Ax7.6 .374 location pin EN 3155-016 0.8 to FED-STD-H28/2A M2018) .031 with lock washer tightening torque max. 1.7 Nm location pin max. 6.5 19.5 current rating in A max .256 .768 mm This is a metric design and millimeter dimensions take precedence ( ) inch 2 www.e-t-a.de 2034 45 45 45 45 SW14 .551 SW14 .551 SW14 .551 min. 4.6 min .181 min. 4.6 min .181 min. 4.6 min .181 6.35 14.2 .250 .559 2.5 .098 1.5 2 .059 .079 min. 11.9 ON min .469 max. 19 OFF 31 1.22 max .748 3.5 .138 14.2 16.2 6.35 6.35 6.35 14.2 .559 14.2 .638 .250 .250 .250 .559 .559 2.5 2.5 2.5 .098 .098 .098 1.5 1.5 1.5 2 2 .059 .059 .059 2 .079 ON ON .079 ON 13 13 13 .079 .512 .512 .512 18.5 OFF 18.5 OFF 31 31 31 18.5 OFF .728 1.22 1.22 .728 1.22 .728 3.5 3.5 3.5 .138 .138 .138