DATA S H E E T
EP2S/EP1S SERIES
AUTOMOTIVE RELAYS
LOW SOUND PRESSURE
Document No. ER0131EJ1V0DS00
Date Published April 1996 M
Printed in Japan
1996
DESCRIPTION
The NEC EP2S / EP1S series are PC-board mount type automotive relays suitable for various motor controls
and other applications that require a high level of quality and performance.
The sound pressure level of EP2S / EP1S series is 57 dBA nominal when the relay operates, and 49 dBA
nominal when the relay releases.
FEATURES
TM Less sound pressure (10 dB at "operate" and 3 dB at "release" compared with EP2 / EP1)
TM For motor and solenoid reversible control
TM High performance and productivity by unique structure
TM Flux tight housing
APPLICATION
TM Power window control
TM Electrical door lock
TM Wiper system
EP2S SERIES
EP1S SERIES
4
EP2S / EP1S SERIES
SPECIFICATIONS
Items
Contact Form
Contact Material
Contact Resistance
Contact Switching Voltage
Contact Switching Current
Contact Carrying Current
Operate Time
Release Time
Normal Operate Power
Insulation Resistance
Breakdown Voltage
Shock Resistance
Vibration Resistance
Ambient Temperature
Coil Temperature Rise
Life Expectancy
Weight
EP2S
EP1S
1 form C
2 (H bridge type and separate type) 1 form C
Silver oxide complex alloy
50 m
max. (measured at 7 A) initial
16 Vdc max.
25 A max.
20 A / regular type
25 A / regular type
(2 minutes max. 12 Vdc at 85C)
(2 minutes max. 12 Vdc at 85C)
25 A / high carrying current type
30 A / high carrying current type
(2 minutes max. 12 Vdc at 85C)
(2 minutes max. 12 Vdc at 85C)
Approx. 5 ms (at 12 Vdc excluding bounce) initial
Approx. 2 ms (at 12 Vdc excluding bounce) initial
0.64 W (at 12 Vdc)
100 M
min. (at 500 Vdc) initial
500 Vdc min. (for 1 minute) initial
98 m / s
2
[Approx. 10 G] min. (misoperating)
10 to 300 Hz, 43 m / s
2
[Approx. 4.4 G] min. (misoperating)
40C to +85C (40 F to +185F)
50 C / W (without contact carrying current)
1
10
6
operations
1
10
5
operations (at 14 Vdc, Motor Load 25 A / 7 A)
1
10
5
operations (at 14 Vdc, Motor Load 20 A / 3 A)
Approx. 15 gr
Approx. 8 gr
Mechanical
Electrical
Contact
G
Contact
L or N
at 25 C (77 F)
Sound Pressure level Fast (F)
Operate (at 12 Vdc drive with diode)
57 dBA nominal
Relese (at 12 Vdc drive with diode)
49 dBA nominal
Refer to the measuring condition in the figure of
sound pressure level distribution on page 7.
SOUND PRESSURE LEVEL (for reference)