Series MC 300
hermetically sealed relay
for severe environmental conditions
3 NO DB 10 Amp
1 Pdt 10 Amp
non latching relay
General characteristics
No. of poles
Volume
Mass
Reference Military Specifications
3 normally open double break contacts and 1 pole double throw
16,4 cm
3
[1 in
3
]
70 g
[.16 lb. Max]
MIL-PRF-83536
Switching characteristics
Main contact
Contact load at 28 Vdc or 115/200 Vac 400 Hz
100 A
10 A
Auxiliary contact
Rated current at 28 Vdc
5 A resistive
Time delay on operate
Time delay on release
Life time
Resistive load :
Life at 10 A
In rush at 100 A during 100 ms
then 10 A
Life at 1/4 In (2,5 A)
100 000 cycles
50 000 cycles
10
6
cycles
permanent
15 ms max
10 ms for coil Vdc
40 ms for coil Vac
for 100 ms
permanent
22, rue des Chaises
45 140 SAINT JEAN DE LA RUELLE - FRANCE
www.stpigroup.com
Tél : +33 (0)2 38 70 45 00
series MC 300
page 1 / 6
V
200
100
80
60
40
30
20
10
0,1
200
V
100
80
60
40
30
20
10
0,1
0,2
0,4 0,60,8 1
2
4
6
810 15
A
0,2
0,4 0,6 0,8 1
2
4
6
8 10
15
L/R=70ms 40ms 20ms
5ms
A
Fig. 1 Diagram
- Resistive load for voltages higher than 28 Vdc
The switching capability, for a life expectancy of 100 000
cycles, versus supply voltage is given by the Fig. 1 Diagram
Fig. 2 Diagram
- Inductive load for voltages highter than 28 Vdc
The switching capability, for a life expectancy of 50 000
cycles, versus supply for different L / R is given by Fig. 2
Diagram
Environmental characteristics
Temperature Range
-70°C to +125°C
30 g 70 to 3000 Hz
0,2 g² / Hz 70 to 3000 Hz
Vibration
sinusoidal
random
Shock, any axis
Seal
100 g 6 ms
Hermetic (1 x 10
-8
atm cm
3
/s)
Electrical characteristics
Contact voltage drop (@ Rated resistive load)
- Initial
- After guaranteed life
Dielectric strength @ sea level
- Initial @ 60 Hz
Insulation Resistance
- Initial
150 mV Max
275 mV Max
Coil to case
1 000 Vrms
All other points
1 250 Vrms
100 Megohms min. @ 500 Vdc
22, rue des Chaises
45 140 SAINT JEAN DE LA RUELLE - FRANCE
www.stpigroup.com
Tél : +33 (0)2 38 70 45 00
series MC 300
page 2 / 6
Part numbering system
M C * 3 0 0 1 4 2 B ***
RELAIS TYPE
OPTIONAL
S
Internal Voltage suppressor
MODEL NUMBER
IDENTIFICATION
1
Standard
COIL CODE
4
,
7
see page 4
MOUNTING STYLES
1
,
2
, see
page 6
TERMINATION TYLES
B
,
C
, see
page 5
Special instructions or specifications ( on request )
22, rue des Chaises
45 140 SAINT JEAN DE LA RUELLE - FRANCE
www.stpigroup.com
Tél : +33 (0)2 38 70 45 00
series MC 300
page 3 / 6
Coil characteristics
COIL CODE
COIL CODE
TECHNICAL CHARACTERISTICS
4
courant continu
DC
Tension nominal
Nominal coil voltage
Résistance bobine ( ohms ±10% à 25° C )
Coil resistance ( ohms ± 10% at 25° C )
Tension maxi d'enclenchement à 25° C
Max pick-up voltage at 25°C
Tension maxi d'enclenchement à +125° C
Max pick-up voltage at + 125° C
Tension de déclenchement de -70° C à +125° C
Drop out voltage over temperature range
28
210
13
18
1,5 - 7
7
courant alternatif
AC
110
-
75
95,4
5 - 30
Connection diagram
D
C
Y2
B
D
C
Y2
B
Contrasted bead
Contrasted bead
A
1
X1
2
3
1
X1
2
3
A
Series MC300
X2
Series MC S 300
with internal voltage suppressor
D
C
B
A
1
2
3
Y2
Contrasted bead
Series MC 300
(ac configuration)
Reset coil last energized
Viewed from terminals side
(unenergized coil)
22, rue des Chaises
45 140 SAINT JEAN DE LA RUELLE - FRANCE
www.stpigroup.com
Tél : +33 (0)2 38 70 45 00
series MC 300
page 4 / 6
Termination styles
For D C Coil
5,08
(.200)
5,08
(.200)
5,08
(.200)
5,08
(.200)
1,27±0,13
6,9
(.270)
(.050±.005)
THK. SILICONE
RUBBER GASKET
o1,57±0,025
(o .062±.001)
6,9
(.270)
o1,57
-0,025
(o .062
- .001
)
+.002
+0,05
Type
B
For A C Coil
Type
E
*
Gold plated pins for plug-in socket
Solderable tinned pins for PCB mounting
5,08
(.200)
5,08
(.200)
5,08
(.200)
5,08
(.200)
1,27±0,13
6,9
(.270)
(.050±.005)
o1,57±0,025
(o .062±.001)
THK. SILICONE
RUBBER GASKET
6,9
(.270)
o1,57
-0,025
(o .062
- .001
)
+.002
+0,05
Type
C
Type
K
*
Gold plated pins for plug-in socket
Solderable tinned pins for PCB mounting
* Type E and K delivered without silicone gasket
Use mounting pad 564 2204
22, rue des Chaises
45 140 SAINT JEAN DE LA RUELLE - FRANCE
www.stpigroup.com
Tél : +33 (0)2 38 70 45 00
series MC 300
page 5 / 6
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