M300
ENGINEERING DATA SHEET
HERMETICALLY SEALED RELAY
2 PDT/10 AMP
Polarized, non latching hermetically sealed relay
2 PDT
Contact arrangement
Coil supply
Meets the requirements of
Qualified to
Direct current
MIL-R-83536/9 and /10
CECC16101-018
CECC16303-801
PRINCIPLE TECHNICAL CHARACTERISTICS
Contacts rated at
Weight
Dimensions max.
of case in mm
Balanced Force design.
Hermetically sealed, corrosion protected metal can.
APPLICATION NOTES:
001
002
007
023
APPLICABLE SOCKETS:
S300
SC30*
10 Amps / 28 Vdc or 115 Vac -
400 Hz
40 grams max
26 x 25.7 x 13.3
Intrinsically safe relay.
CONTACT ELECTRICAL CHARACTERISTICS
Minimum
operating cycles
100,000 cycles
20,000 cycles
100,000 cycles
100,000 cycles
50 cycles
400,000 cycles
Contact rating per
pole and load type
resistive load
inductive load (L/R=5ms)
motor load
lamp load
resistive overload
at 25% rated resistive load
Load Current in Amps
@28 Vdc
10
8
4
2
40
@115 Vac 400 Hz
10
8
4
2
60
@115/200 Vac 400 Hz 3Ø
10
8
4
2
North America
6900 Orangethorpe Ave.
P.O. Box 5032
Buena Park, CA 90622 USA
Europe, SA
2 Rue Goethe
57430 Sarralbe
France
Tel: (33) 3 87 97 98 97
Fax: (33) 3 87 97 84 04
Asia-Pacific Ltd.
20/F Shing Hing Commercial Bldg.
21-27 Wing Kut Street
Central, Hong Kong
Tel: (852) 2 191 2886
Fax: (852) 2 389 5803
www.leachintl.com
Tel: (01) 714-736-7599
Fax: (01) 714-670-1145
Data sheets are for initial product selection and comparison. Contact Leach International prior to choosing a component.
Date of issue: 9/07
- 101 -
Page 1 of 4
COIL CHARACTERISTICS (Vdc)
CODE
Nominal operating voltage
Maximum operating voltage at +125° C
Maximum pickup voltage at +125° C
Guaranteed drop-out voltage at -65° C
Coil resistance in
Ω
±10% at +25° C
Back EMF suppressed to (Vdc)
C
6
7
5
0.2
20
N/A
B
12
14
10
0.5
80
N/A
A
28
29
19.8
1.5
320
N/A
N
28
29
19.8
1.5
320
-42
E
48
50
34.1
2
955
N/A
M300
V
110
125
75
5
5000
N/A
GENERAL CHARACTERISTICS
Temperature range
Dielectric strength at sea level
- Contacts to ground and between contacts
- Coil to ground
Dielectric strength at altitude 25,000 m (all points)
Initial insulation resistance at 500 Vdc
Sinusoidal vibration (except G, O and R mounting)
Sinusoidal vibration (G, O and R mounting only)
Shock (except G, O and R mounting)
Shock (G, O and R mounting only)
Maximum contact opening time under vibration and shock
Operate time at nominal voltage
Release time
Bounce time
Contact voltage drop at nominal current
- initial value
- after life
150 mV max
175 mV max
1250 VRMS / 50 Hz
1000 VRMS / 50 Hz
350 VRMS / 50 Hz
100 M
Ω
min
30G / 75 to 3000 Hz
20G 75 to 3000 Hz
200G / 6 ms
100G / 6 ms
10 µs
10 ms max
10 ms max
1 ms max
-65°C to +125°C
Date of issue:
9/07
- 102
-
Page 2 of 4
MOUNTING STYLES
2
Ø5
M300
A
25.7
MAX
B : ISO M3
C : UNC
4
±0.5
7.5
±0.1
1
D
M3
OR 4.40 UNC 2 B
13.3
MAX
26 MAX
12.3
MAX
35.7
±0.15
4
±0.15
4
±0.15
3.8
35.5
36.7
44 MAX
CONTRASTING BEAD
44 MAX
K MOUNTING MAY BE USED WITH
1 OR 8 TERMINAL; IT INCLUDES
THE DELIVERY OF 10114 ISOLATION
SPACER PAD
M3.5 OR
6.32 UNC 2A
1.2
MAX
9.5
0.8
MAX
M3
9.5
3.8
G : UNC
J
12.7
12.3
MAX
5.2
K
4
ñ0.15
O : SI M3.5
R : ISO M3
1
M3
=
=
Ø8 MAX
=
=
=
15.9
=
=
15.9
=
35.5
36.7
44 MAX
35.7
±0.15
44 MAX
Dimensions in mm
Tolerances, unless otherwise specified, ±0.25mm
TERMINAL TYPES
5.08
2.54
Ø1.57
±0.03
5.08
5.08
POLARIZING PIN
2.54
Ø1.57
±0.03
5.08
5.4
1
2
1.3
±0.1
4
7
8
7.6
6.9
±0.2
5.08
Ø2
SILICON GASKET
SHORE A 15-30
5.08
7.9
MAX
1.27
+0.5
3.6
+0
ISOLATION PAD 10114
TIN PLATED PINS
SOLDER HOOKS
GOLD PLATED PINS
BENT TIN
PLATED PINS
SHORT TIN
PLATED PINS
Date of issue:
9/07
- 103 -
Page 3 of 4
SCHEMATIC DIAGRAM
M300
BOTTOM VIEW, DE-ENERIZED COIL
N COIL
CE : EXPORTED SPIKES
1
B
+
A
+X1
A
+X1
-X2
2
3
B
1
-X2
2
3
CE
+
SUPPRESSOR DEVICE
NUMBERING SYSTEM
M300
B
4
A
C
Basic series designation__________________________|
|
|
|
|
1-Mounting Style (A,B,C,D,J,K,G,O,R)____________________|
|
|
|
2-Terminal Types (1,2,4,7,8)________________________________|
|
|
3-Coil Voltage (C,B,A,N,E,V)____________________________________|
|
4-See Note Below ___________________________________________________|
NOTES
Relays with mounting styles B,C,D and terminal type 4 are compatible with socket families S300, SF300...
Isolation spacer pads for PCB mounting available on request.
For other mounting styles or terminal types, please contact the factory.
Options
-
C:
Circuit breaker compatibility 15 A / 1 hour; 50 A / 5 sec; 100 A / 1.2 sec 250 A / 0.2 sec; 350 A /0.1
sec; 1400 A /2 msec
5.
Quality level:
-
H:
High current version, 15 Amps resistive contact rating
-
D:
low level: 1 mAmp / 30 mV
-
006:
Qualified to CECC16303-801
-
ER:
Please contact factory.
1.
2.
3.
4.
TYPICAL CHARACTERISTICS
G
G
G
Coil resistance/temperature change: See application note no. 001
L/R ratio for all types of DC coils is: ~ 9 ms
Life expectancy for loads other than 28Vdc: See application note no. 002
Date of issue:
9/07
- 104 -
Page 4 of 4
Application notes
N°001
CORRECTION DUE TO COIL COPPER WIRE RESISTANCE
CHANGE IN TEMPERATURE
1.8
1.6
Correction coefficient
1.4
1.2
1
0.8
0.6
-80
-30
Temperature ( °C)
20
70
120
170
Nominal Resistance at 25°C
Nominal Resistance at 20°C
Example: Coil resistance at 25°C: 935 ohms. What is it at 125°C?
Correction coefficient on diagram is: 1.39 at 125°C. R becomes: 935x1.39=1299 Ohms
Correction also applies to operating voltages
Date of issue: 3/06
-1-
Page 1 of 1
