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. US patent number: US 6,490,141 B2 (4120-G4 moulded threadneck) 1 Typical applications 4120-... Extra low voltage wiring systems on all types of vehicles for land, sea and air. Technical data Ordering information Voltage rating AC 115 V (300 Hz to 800 Hz); DC 28 V Current rating range 1...25 A (0.5 A upon request) Type No. Auxiliary circuit 1 A, DC 28 V (0.5 A upon request) 4120 single pole, with temperature compensation Typical life 20,000 operations mechanical, or Mounting 5,000 operations at 1 x I G threadneck panel mounting N Threadneck design Ambient temperature -55°C ...+125°C (-67...+257 °F) 1 M12x1x6.3 (aluminium) Insulation co-ordination rated impulse pollution 2 7/16-32 UNx6.3 (aluminium) (IEC 60664 and 60664A) withstand voltage degree Number of poles 1.5 kV 3 1 1-pole, thermally protected Dielectric strength Hardware for threadneck (IEC 60664 and 60664A) test voltage 0 without hardware operating area AC 1,500 V 1 hex nut M12x1, corrugated washer 12/15, fitted main to aux. circuit AC 1,500 V 3 hex nut M12x1 (aluminium), serrated lock washer 12.1/17.2, bulk shipped Insulation resistance > 100 MΩ (DC 500 V) 4 hex nut 7/16-32UN (aluminium), Interrupting capacity I AC 115 V (400 Hz): 1...4 A 1,000 A cn serrated lock washer 11.3/14.9, fitted 5...25 A 2,000 A Terminal design (main terminals) DC 28 V: 1...25 A 6,000 A K1 screw terminals with metric thread K14 (M4) Degree of protection operating area IP40 J1 screw terminals with inch thread J14 (8-32UNC-2B) (IEC 60529/DIN 40050) terminal area IP00 J2 screw terminals with inch thread J17 (8-32UNC-2B) J3 screw terminals with inch thread J25 (6-32UNC-2B) Vibration 10 g (57-2000 Hz), ± 0.76 mm (5-57 Hz) P1 blade terminals 6.3x0.8, DIN 46244, silver-plated (sinusoidal) to ISO 7137, EN 2350 para. 5.3.1 Characteristic curve 2 Vibration 1...2.5 A: 0.04 g /Hz ± 1,5 dB; 7.3 g eff M1 thermal, 1.15 - 1.4 I 2 N 3...20 A: 0.06 g /Hz ± 1,5 dB; 9 g eff Terminal screws to ISO 7137, EN 2350 para. 5.3.1 A Phillips screw M4x6, fitted Acceleration 17 g, to ISO 2669, EN 2350 para. 5.3.3 B Phillips screw 8-32UNC-2Ax6, fitted Shock 50 g (11 ms), to ISO 7137, C Phillips screw 6-32UNC-2Ax6 (MS 51957-26) EN 2350 para. 5.3.2 K hex screw with Phillips head 8-32UNC-3Ax7.6, fitted M hex screw with Phillips head 8-32UNC- Corrosion 48 hours at 5 % salt mist 3Ax7.6, bulk shipped to ISO 7137, EN 2350 para. 5.4.2 Z without terminal hardware Humidity 240 hours at 95 % RH, Terminal washers to ISO 7137, EN 2350 para. 5.4.3 0 without lock washer Explosion to VG 95210, sheet 10 1 wave washer A4, fitted 2 lock washer 4.3, fitted Altitude ≤ 22,000 m above sea level 4 lock washer 3.7 (MS 35338-136) Mass approx. 20.6 g with terminal screws, 5 lock washer 4.3/9, fitted without -Si 6 lock washer 4.3/9, bulk shipped approx. 24.6 g with terminal screws, Auxiliary contact with -Si S0 without auxiliary contact S1 with auxiliary contact (connector EN 3155-016M2018) (NC) S5 with polarized auxiliary contact (NC) Preferred types Barrier Z without barrier Preferred types Standard current ratings (A) Colour of the push button G green to EN (e. g. 2 1/2) 1 2 3 5 7.5 10 15 20 25 N black to EN (e. g. 2 1/2) 4120-G214-J1M1-B2S0ZN Current ratings x x x x x x x x x (MS3320) 1...25 A 4120-G111-K1M1-A1S0ZN x x x x x x x x x 4120 - G 1 1 1 - K1 M1 - A 1 S0 Z N - 10 A ordering example (EN 2495/VG93345 T06) 1646 www.e-t-a.de 1 5 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 ø10 M12x1 .394 1 1100 7.5 250 ø8.4 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 0.5 A…25 A 0.8 tightening torque max. 1.7 Nm .031 Bw VG 95345, AC 115 V, 400 Hz 1 A…25 A part 6 DC 28 V 1 A…25 A Bw EN 2495-…U / AC 115 V, 400 Hz 1 A…25 A 19.5 -…M DC 28 V 1 A…25 A .768 current rating in A location pin Bw LN 29887 AC 115 V, 400 Hz 5 A…25 A 4120-G11.-J2M1-K5S0ZN (EN2495-…U, EN3773-004 D…) DC 28 V 5 A…25 A tightening torque max. 5 Nm ø10 M12x1 Bw EN 3773-004 AC 115 V, 400 Hz 1 A…25 A .394 ø8.4 DC 28 V 1 A…25 A .331 black Dep. of MS 3320 AC 115 V, 400 Hz 1 A…20 A white the Navy DC 28 V 1 A…20 A serrated lock washer Airbus EN 2995-004 AC 115 V, 400 Hz 1 A…25 A DC 28 V 1 A…25 A type No. Airbus EN 2995-005 AC 115 V, 400 Hz 1 A…25 A DC 28 V 1 A…25 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 ø10 tightening torque max. 1.7 Nm .031 7/16-32-UN-2A THD .394 ø8.4 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 ø10 M12x1 .394 2 1 ø8.4 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 1 1 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 1646 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 45° High Performance Thermal Circuit Breaker 4120-... High Performance Thermal Circuit Breaker 4120-... Mounting holes Internal connection diagram 4120-G2... mounting holes S0 with auxiliary contact +0.1 VG 95345 T06 ø3 +0.15 ø3.2 ±.004 .118 min. 20 +.006 line 1 line 1 11 .126 min. 25 * min .787 min .984 * +0.2 ø12.5 thickness: +.008 .492 1.5 - 3 mm .059 - .118 in. 2 12 2 1 thickness 1.5 - 3 mm .059 - .118 in. with auxiliary contact with polarized auxiliary contact 4120-G1... mounting holes S1 or S5 EN 2995-004 EN 2995-005 +0.1 ø3.5 +0.15 ø3.2 min. 20 line 1 3 line 1 3 ±.004 .138 +.006 .126 min. 25 * min .787 min .984 * +0.2 ø12.5 +.008 .492 thickness: 1.5 - 3 mm .059 - .118 in. 2 4 2 5 thickness 1.5 - 3 mm .059 - .118 in. * min. 25 mm / .984 in. when fitted with splash cover Typical time/current characteristics Other terminal designs 10000 +125 °C +257 °F +23 °C Terminal design -J2 1000 +73.4 °F Terminal distances to: -55 °C MS 14 105 (a, b) -67 °F 100 MS 14 153 (a, b) MS 22 073 (a) MS 22 074 (a) MS 25 244 (a) 10 MS 25 373 (a, b) 1 10.5 a 0.1 .413 (18 mm/.709 in.) 0.01 Terminal design -J3 Terminal distances to: 0.001 12 46 810 20 40 6080100 MS 26 574 (a, b) … times rated current 8.5 a .335 (15 mm/.591 in.) Terminal design -P1 6.3 13 .248 .512 mm This is a metric design and millimeter dimensions take precedence ( ) inch 1646 www.e-t-a.de 3 45° 45° +0.2 +0.2 ø12.5 ø11.5 +.008 +.008 .492 .453 ±0.2 ±0.2 9.5 9.5 ±.008 ±.008 .374 .374 b 36 b (35.5 mm/1.40) 1.42 (31 mm/1.22 in.) ±0.2 min. 40 ±0.1 min. 30 9.5 9.6 ±.004 ±.008 min. 1.57 .378 min. 1.18 .374 Trip time in seconds High Performance Thermal Circuit Breaker 4120-... Accessories (approved to VG 95 345, part 23) Splash cover/hex nut assembly with O ring (IP66 and IP67) X 200 801 08 nickel plated nut, transparent cover X 200 801 03 matt black finish nut, black cover X 200 801 09 matt black finish nut 7/16-32, black cover X 200 801 12 with blackened nut and transparent cover 1 M12x1 or 7/16-32 Actuator extension (black) to be fitted on the push button X 200 803 01 ø20 ø.787 Accessories Identification collar to be snapped on the push button Y 307 004 01 black Y 307 004 02 white Y 307 004 03 red Y 307 004 04 green Y 307 004 05 blue ø14 .551 ø6.85 .270 ø12.35 .486 0.65 .026 Lock out ring to block the push button in OFF position Y 307 005 01 red Y 307 005 02 black ø14.6 .575 ø10.9 .429 mm This is a metric design and millimeter dimensions take precedence ( ) 0.8 inch .031 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. 4 www.e-t-a.de 1646 1.8 .071 6.4 7.7 .252 .303 17 .669