28-1800 Vdc
Kilovac EV250-1A & 1B - 400 Amps ("Czonka II EVX")
Make & Break Load Switching
Features:
Hydrogen dielectric for power switching high
current loads
400 A carry, 2,500 A interrupt @ 320 Vdc
Ideal for circuit protection, control, battery
switching, and main power safety disconnect
Versatile power, voltage, and current
operating range: 28-1800Vdc tested
Low-cost compact version for volume
production applications. Requires external
coil economizer (PWM or lower hold voltage)
Patented "hammer effect" mechanism breaks
light contact welds
Patented "Super-sealed" environment
chamber uniquely protects ALL moving parts
Can operate in harsh environments
Moving contact rotates to provide fresh
contact surface for low contact resistance
Features:
power comsumption
and low
Sealed control connector. Mating connector
with flying leads P/N 2005 available, see
page 59
Logic control enabled by external economizer
P/N 9913
High temperature (135
o
C) model with 10 inch
flying leads available (-4A call factory for
sales drawing)
Bi-directional power switching
Fast operate and release time
Note:
Dimensions in inches. Multiply values by 25.4 for dimensions in mm.
CONTACT RATINGS*
1 0 0 ,0 0 0
400A
M o m en t a ry C a rry
R eg i o n
9 0 0 0A
1 0 ,0 0 0
12
40
0V
dc
6
0
28
0V
dc
V
dc
L ife C y c le s
1 ,0 0 0
R eg i o n o f
C on t a c t
L e v it a ti on .
O pe r at io n
P ro h ib i te d
0
V
dc
27
0V
18
00
dc
90
1 0 0
0V
Vd
c
dc
1 0
1
1
1 0
1 0 0
1 ,0 0 0
1 0 ,0 0 0
1 0 0 ,0 0 0
S w itc hin g C u r re n t
* For circuit conditions and actual data refer to the EV250 hot switch study. Since each application is unique, user is encouraged to verify rating in
actual application.
Part Number
PRODUCT SPECIFICATIONS
UNIT
EV250-1A
SPST-NO
X
A
A
A
ohms
ohms
Vrms
G's Peak
G's
o
COIL DATA***
EV250-1B
SPST-NO
X
400
500
2,500
0.0003
0.0001 - 0.0002
2,200
30
20
-40 to +85
See Page 19
30
5
15
100
1.54 (0.7)
Parameter
Voltage* (nominal )
Pickup (close), max.
Dropout (open), min.
Coil Resistance
@ 25
o
C, +/- 10%
Coil Energy, max.
Coil Clamping
EV250-1A EV250-1B Units
12
8.3
24
16.6
10.2/7.6
Vdc
Contact Arrangement ..........................................................
Contact Form ........................................................................
Continuous Current Carry, Max. ........................................
6.5 Minutes ....................................................................
Break Current @ 320 Vdc ...................................................
Contact Resistance, Max. ...................................................
Contact Resistance, Typ. ....................................................
Dielectric at Sea Level (leakage < 1mA) ............................
Shock, 11 ms 1/2 Sine (peak), operating .........................
Vibration, Sinusoidal (80-2000 Hz, peak) .........................
Operating Ambient Temperature Range ............................
Load Life, @320 Vdc, 95% Weibull* .................................
Operate Time, 25
o
C ..............................................................
Close (includes bounce) Typ. ......................................
Bounce (after close only), Max. ..................................
Open (includes arcing), Max. ......................................
Insulation Resistance @ 500 Vdc, Min. ............................
Weight, Nominal ..................................................................
*
400
500
2,500
0.0003
0.0001 - 0.0002
2,200
30
20
-40 to +85
See Page 19
30
5
15
100
1.54 (0.7)
Continuous Hold, max/min ** 5.1/3.8
0.88 - 3.3 2.4 - 6.6
3
0.2
12
0.2
Ohms
J
3 x nom. 3 x nom.
o
C
cycles
ms
ms
ms
Mohm
pound (kg)
* Do not apply continously. Requires external coil economizer. Other special coil
voltages available upon request.
* * At maximum continuous current and maximum ambient temperature. Hold
voltage must be maintained within the limits specified to keep contacts closed
and to prevent coil overheating.
* * * Do not use a free wheeling diode or capacitor across the coil.
PART NUMBER SELECTION
Sample Part No.
EV250-1
Coil Voltage
A = 12 Vdc, Nominal
B = 24 Vdc, Nominal
A
Refer to Page 19 for actual mix of precharge and break currents used on each cycle.
For detailed specifications and recommendations,
refer to the EV250-1A & B sales drawings.
Tyco Electronics
/ www.tycoelectronics.com / Factory Direct Technical Support: 800-253-4560, ext. 2023 (U.S., Canada, Mexico) or 805-220-2020, ext. 2023 (International)
16
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
