High Performance Thermal Circuit Breaker 4120-...
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Description
Typical applications
Ordering information
Technical data
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)
Extra low voltage wiring systems on all types of vehicles for land,
sea and air.
4120-...
Type No.
4120 single pole, with temperature compensation
Mounting
G threadneck panel mounting
Threadneck design
1 M12x1x6.3 (aluminium)
2 7/16-32 UNx6.3 (aluminium)
Number of poles
1 1-pole, thermally protected
Hardware for threadneck
0 without hardware
1 hex nut M12x1, corrugated washer 12/15, fitted
3 hex nut M12x1 (aluminium),
serrated lock washer 12.1/17.2, bulk shipped
4 hex nut 7/16-32UN (aluminium),
serrated lock washer 11.3/14.9, fitted
Terminal design (main terminals)
K1 screw terminals with metric thread K14 (M4)
J1 screw terminals with inch thread J14 (8-32UNC-2B)
J2 screw terminals with inch thread J17 (8-32UNC-2B)
J3 screw terminals with inch thread J25 (6-32UNC-2B)
P1 blade terminals 6.3x0.8, DIN 46244, silver-plated
Characteristic curve
M1 thermal, 1.15 - 1.4 IN
Terminal screws
A Phillips screw M4x6, fitted
B Phillips screw 8-32UNC-2Ax6, fitted
C Phillips screw 6-32UNC-2Ax6 (MS 51957-26)
K hex screw with Phillips head 8-32UNC-3Ax7.6, fitted
M hex screw with Phillips head 8-32UNC-
3Ax7.6, bulk shipped
Z without terminal hardware
Terminal washers
0 without lock washer
1 wave washer A4, fitted
2 lock washer 4.3, fitted
4 lock washer 3.7 (MS 35338-136)
5 lock washer 4.3/9, fitted
6 lock washer 4.3/9, bulk shipped
Auxiliary contact
S0 without auxiliary contact
S1 with auxiliary contact (connector
EN 3155-016M2018) (NC)
S5 with polarized auxiliary contact (NC)
Barrier
Z without barrier
Colour of the push button
G green to EN (e. g. 2 1/2)
N black to EN (e. g. 2 1/2)
Current ratings
1...25 A
4120 - G 1 1 1 - K1 M1 - A 1 S0 Z N - 10 A ordering example
Voltage rating AC 115 V (300 Hz to 800 Hz); DC 28 V
Current rating range 1...25 A (0.5 A upon request)
Auxiliary circuit 1 A, DC 28 V (0.5 A upon request)
Typical life 20,000 operations mechanical, or
5,000 operations at 1 x IN
Ambient temperature -55°C ...+125°C (-67...+257 °F)
Insulation co-ordination rated impulse pollution
(IEC 60664 and 60664A) withstand voltage degree
1.5 kV 3
Dielectric strength
(IEC 60664 and 60664A) test voltage
operating area AC 1,500 V
main to aux. circuit AC 1,500 V
Insulation resistance > 100 MΩ (DC 500 V)
Interrupting capacity Icn AC 115 V (400 Hz): 1...4 A 1,000 A
5...25 A 2,000 A
DC 28 V: 1...25 A 6,000 A
Degree of protection operating area IP40
(IEC 60529/DIN 40050) terminal area IP00
Vibration 10 g (57-2000 Hz), ± 0.76 mm (5-57 Hz)
(sinusoidal) to ISO 7137, EN 2350 para. 5.3.1
Vibration 1...2.5 A: 0.04 g2/Hz ± 1,5 dB; 7.3 g eff
3...20 A: 0.06 g2/Hz ± 1,5 dB; 9 g eff
to ISO 7137, EN 2350 para. 5.3.1
Acceleration 17 g, to ISO 2669, EN 2350 para. 5.3.3
Shock 50 g (11 ms), to ISO 7137,
EN 2350 para. 5.3.2
Corrosion 48 hours at 5 % salt mist
to ISO 7137, EN 2350 para. 5.4.2
Humidity 240 hours at 95 % RH,
to ISO 7137, EN 2350 para. 5.4.3
Explosion to VG 95210, sheet 10
Altitude ≤ 22,000 m above sea level
Mass approx. 20.6 g with terminal screws,
without -Si
approx. 24.6 g with terminal screws,
with -Si
Preferred types Standard current ratings (A)
1 2 3 5 7.5 10 15 20 25
4120-G214-J1M1-B2S0ZN
(MS3320) xxxxx xxxx
4120-G111-K1M1-A1S0ZN
(EN 2495/VG93345 T06) xxxxxxxxx
Preferred types
High Performance Thermal Circuit Breaker 4120-...
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Dimensions 4120-G1..
4120-G11.-J2M1-K5S0ZN (EN2495-…U, EN3773-004 D…)
4120-G111-K1M1-A1S0ZN (EN2495-…M) (VG95345 T06)
45°
type No.
green
45°
13
1.5
4120-G112-J2M1-K5S1ZG - 4120-G112-J2M1-K5S5ZG
(EN2995-004) (EN2995-005)
18
1
M12x1
18.5 OFF
6.35
31
max. 3
tightening torque max. 5 Nm
2.5
ø10
ø8.4
3.5
white
serrated lock
washer
10.5
.098
.250
.512
.728
.059
1.22
min .181
max .118
.709
.138
.331
.394
.413
ON
12
min. 4.6
16.2
min. 8
25°
43
.638
min .315
13
M12x1
18.5 OFF
6.35
1.5
31
12.8
45°
45°
max. 2
tightening torque max. 5 Nm
12
2.5
min. 4.6
ø10
ø8.4
3.5
black
white
lock washer
8.5
5
type No.
terminals:
1 - input
2 - output
terminal screw ISO 7045-M4x6
with lock washer DIN 137-B4
tightening torque max. 1.7 Nm
.098
.250
.512
.728
.059
1.22
min .181
max .079
.504
.138
.331
.394
.197
.335
ON
14.2
9.5
2
0.8
19.5
location pin
5
current rating in A
.031
.374
.559
.768
.079
SW14
.551
terminal screw H8-32UNC-3Ax7.6
to FED-STD-H28/2A
with lock washer
tightening torque max. 1.7 Nm
type No.
black
45°
13
1.5
18
12
M12x1
18.5 OFF
6.35
31
45°
max. 3
tightening torque max. 5 Nm
2.5
min. 4.6
ø10
ø8.4
3.5
white
serrated lock
washer
10.5
.098
.250
.512
.728
.059
1.22
min .181
max .118
.709
.138
.331
.394
.413
ON
SW14
14.2
19.5
5
9.5
2
0.8
location pin
current rating in A
.031
.374
.559
.768
.079
.551
14.2
aux. contact
(connector to
EN 3155-016
M2018)
SW14
19.5
9.5
0.8
location pin
current rating in A
.031
.374
.559
.768
.551
2
5
max. 6.5
.079
max .256
terminal screw H8-32UNC-3Ax7.6
to FED-STD-H28/2A
with lock washer
tightening torque max. 1.7 Nm
.413
terminals:
1 - input
2 - output
terminals:
1 - input
2 - output
Approvals (configurations)
Standard current ratings and typical volt drop values
This is a metric design and millimeter dimensions take precedence ( mm )
inch
Dimensions 4120-...
min. 11.9 ON
7/16-32-UN-2A THD
max. 19 OFF
6.35
1.5
31
12.8
45°
45°
max. 1.5
tightening torque max. 5 Nm
12
2.5
min. 4.6
ø10
ø8.4
3.5
black
white
serrated
lock washer
8.5
5
type No.
terminals:
1 - input
2 - output
terminal screw MS 51957-41 (8-32 UNC-2A)
with lock washer MS 35338-137
tightening torque max. 1.7 Nm
4120-G214-J1M1-B2S0ZN (MS 3320)
.098
.250
min .469
max .748
.059
1.22
min .181
max .059
.504
.138
.331
.394
.197
.335
9.5
2
14.2
0.8
19.5
location pin
5
current rating in A .031
.374
.559
.768
.079
Current
rating (A) Volt drop
(mV) Current
rating (A) Volt drop
(mV)
1 1100 7.5 250
2 550 10 230
2.5 460 15 200
3 440 20 190
4 380 25 190
5 260
Authority Standard Voltage ratings Current ratings
UL UL 1077 DC 50 V 0.5 A…25 A
Bw VG 95345,
part 6 AC 115 V, 400 Hz
DC 28 V 1 A…25 A
1 A…25 A
Bw EN 2495-…U /
-…M AC 115 V, 400 Hz
DC 28 V 1 A…25 A
1 A…25 A
Bw LN 29887 AC 115 V, 400 Hz
DC 28 V 5 A…25 A
5 A…25 A
Bw EN 3773-004 AC 115 V, 400 Hz
DC 28 V 1 A…25 A
1 A…25 A
Dep. of
the Navy MS 3320 AC 115 V, 400 Hz
DC 28 V 1 A…20 A
1 A…20 A
Airbus EN 2995-004 AC 115 V, 400 Hz
DC 28 V 1 A…25 A
1 A…25 A
Airbus EN 2995-005 AC 115 V, 400 Hz
DC 28 V 1 A…25 A
1 A…25 A
High Performance Thermal Circuit Breaker 4120-...
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High Performance Thermal Circuit Breaker 4120-...
… times rated current
Trip time in seconds
12468
10 20 40
10000
1000
100
10
1
0.1
0.01
0.001
6080100
+125 °C
+257 °F
+23 °C
+73.4 °F
-55 °C
-67 °F
Typical time/current characteristics
Internal connection diagram
2
line 1
2
line 1
4
3
2
line 1
5
3
with auxiliary contact
EN 2995-004
with polarized auxiliary contact
EN 2995-005
2
line 1
12
11
with auxiliary contact
VG 95345 T06
This is a metric design and millimeter dimensions take precedence ( mm )
inch
Mounting holes
mounting holes S0
mounting holes S1 or S5
ø3.2+0.15
9.5±0.2
ø12.5+0.2
.492+.008
min. 25 *
9.6±0.1
min. 40
.378±.004
min. 1.57
* min. 25 mm / .984 in. when fitted with splash cover
min .984 *
min. 20
min .787
ø3.5+0.1
.138±.004
min. 30 9.5±0.2
.374±.008
min. 1.18
thickness 1.5 - 3 mm
.059 - .118 in.
ø12.5+0.2
.492+.008
min. 25 *
min .984 *
min. 20
min .787
ø3+0.1
.118±.004
ø11.5+0.2
thickness:
1.5 - 3 mm
.059 - .118 in.
.453+.008
.374±.008
.126+.006
4120-G2...
ø3.2+0.15
9.5±0.2
ø12.5+0.2
.492+.008
.374±.008
.126+.006
4120-G1...
thickness 1.5 - 3 mm
.059 - .118 in.
thickness:
1.5 - 3 mm
.059 - .118 in.
Other terminal designs
a
45°
8.5
Terminal design -J3
Terminal design -J2
Terminal distances to:
MS 14 105 (a, b)
MS 14 153 (a, b)
MS 22 073 (a)
MS 22 074 (a)
MS 25 244 (a)
MS 25 373 (a, b)
45°
a
45°
10.5
Terminal distances to:
MS 26 574 (a, b)
bb
(31 mm/1.22 in.)
.413
(18 mm/.709 in.)
(15 mm/.591 in.)
(35.5 mm/1.40)
.335
13
36
6.3
Terminal design -P1
.512
1.42
.248
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Accessories (approved to VG 95 345, part 23)
A
ctuator extension (black) to be fitted on the push button
X 200 803 01
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
M12x1 or
1.8
7/16-32
.071
ø20
17
ø.787
.669
X 200 801 12 with blackened nut and transparent cover
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
Lock out ring to block the push button in OFF position
Y
307 005 01 red
Y
307 005 02 black
6.4
ø6.85
ø12.35
ø14
.270
.551
.486
.252
0.65
.026
0.8
.031
7.7
ø10.9
ø14.6
.575
.303
.429
This is a metric design and millimeter dimensions take precedence ( mm )
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.
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