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74
AUTOMOTIVE POWER RELAY
FEATURES
l High performance
l 6.3mm Flat Terminals
l Current rating up to 40A
l Suitable Couplers available
l Optional Sealing
APPLICATION
l Horn Control
l Starter Motors
l Defogger
l Radiator Fan
l A/C Controls
l Security Systems
TECHNICAL DATA FOR CONTACT SIDE :
Model
: 74
74-SC
Areas of Application
RESISTIVE / INDUCTIVE/HEAD LAMP/CAPACITIVE LOADS
Contact Configuration
: 1A/1C
1A/1C
Contact Material
: Silver Nickel
Silver Nickel / Silver Tin Oxide*
Contact Rating at 230C - 12VDC (Res.) NO :
30
40
NC :
20
30
Electrical Life Operations Min.
:
2 x 105
2 x 105
Mechanical Life Operations Min.
:
1 x 106
1 x 106
Contact Voltage Drop at 10 A (Min)
:
50mV
50mV
Ma ximum Switching Current
@ 12.8 VDC For 3 Sec.
:
120A
*Under introduction
www.DataSheet4U.com GENERAL DATA FOR COIL SIDE
150A
CIRCUIT DIAGRAM
Nominal Coil Power
: 1.6W (Approx)
Operating Power
: 1.8W (Approx)
Operate Time**
: 15 milli Seconds
Release Time**
: 15 milli Seconds
** At nominal voltage without coil suppression (excluding bounce)
*
OPERATING CONDITIONS
Ambient Temperature
Ma ximum Temperature
Dielectric Strength
Insulation Resistance
Vibration Resistance (without change
in the switching state>10µS)
Shock Resistance (without change
in the switching state>10µS)
:
:
:
:
:
:
-300C to +850C
1550C
500VRMS
100 Meg. Ohms Min. At 500 VDC,
250C RH 50
10-2000Hz 4.4g
30g, 8mS
30 85 86 87
1 Form A
*
30 85
86 87 87a
1 Form C
* parallel resistor or diode optional
HOW TO ORDER
74
1 - 12 - 1C - X
XX X - XX
COIL DATA
Product
Series
0-Without Bracket
1-With Bracket
Nominal Voltage
(Refer Coil Data)
Contact Arrangement
1C -1 Form C
1A - 1 Form A
Specialities
if any
Nil - unsealed (Standard)
E - Sealed
SC - 1 Form C (40 / 30 Amp) Contact
SA - 1 Form A (40 Amp) Contact
Nil - No coil suppression
1 - with resistor across coil
2 - with diode across coil
Use this Section only
for relays with 40/30A
contact relays
DIMENSIONS
Relay without Bracket
27.0
27.0
12
8 1.2
85
24 17 2.4 305
***Lower pick-up Voltages available on request
Relay with Bracket
4x0.8
4x6.30
2x0.8
www.DataSheet4U8.c5om
87
86
30
10.35
17.9
MECHANICAL DATA
COVER RETENTION
Pull : 20KgF
Push
: 20KgF
TERMINAL STRENGTH
Pull : 10KgF
Push
: 10KgF
11.5
33.0
27.0
Ø5.0
27.0
19.0
8.0
25.0
4x6.30
2x0.8
11.5
AVAILABLE ON REQUEST
l High temperature winding wire
l Special Contact arrangements
l Special coil resistance & pick-up
l Resistor / Diode across coil
l For other custom solutions consult factory
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