28-1800 Vdc
Kilovac EV250-1A & 1B - 400 Amps ("Czonka II EVX")
Features:
Make & Break Load Switching
Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.
CONTACT RATINGS*
400A
1 0 0 ,0 0 0
9 0 0 0A
M o m en t a ry C a rry
R eg i o n
1 0 ,0 0 0
dc
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
dc
dc
1 ,0 0 0
6
0
V
0V
dc
dc
90
c
dc
Vd
0V
00
1 0 0
27
0
18
L ife C y c le s
0V
V
0V
28
12
40
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:
and low power comsumption
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 (135oC) model with 10 inch
flying leads available (-4A call factory for
sales drawing)
Bi-directional power switching
Fast operate and release time
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
COIL DATA***
EV250-1B
EV250-1A EV250-1B Units
Contact Arrangement ..........................................................
SPST-NO
SPST-NO
Voltage* (nominal )
12
24
Contact Form ........................................................................
X
X
Pickup (close), max.
8.3
16.6
Continuous Current Carry, Max. ........................................
A
400
400
6.5 Minutes ....................................................................
Continuous Hold, max/min ** 5.1/3.8
A
500
500
Dropout (open), min.
Break Current @ 320 Vdc ...................................................
A
2,500
2,500
Contact Resistance, Max. ...................................................
ohms
0.0003
0.0003
Contact Resistance, Typ. ....................................................
ohms
0.0001 - 0.0002
0.0001 - 0.0002
Dielectric at Sea Level (leakage < 1mA) ............................
Vrms
2,200
2,200
Shock, 11 ms 1/2 Sine (peak), operating .........................
G's Peak
30
30
Vibration, Sinusoidal (80-2000 Hz, peak) .........................
G's
20
20
Operating Ambient Temperature Range ............................
Load Life, @320 Vdc, 95% Weibull* .................................
oC
o
-40 to +85
-40 to +85
cycles
See Page 19
See Page 19
ms
30
30
Operate Time, 25oC ..............................................................
Close (includes bounce) Typ. ......................................
Bounce (after close only), Max. ..................................
Open (includes arcing), Max. ......................................
*
Parameter
ms
5
5
ms
15
15
Insulation Resistance @ 500 Vdc, Min. ............................
Mohm
100
100
Weight, Nominal ..................................................................
pound (kg)
1.54 (0.7)
1.54 (0.7)
Refer to Page 19 for actual mix of precharge and break currents used on each cycle.
Vdc
10.2/7.6
0.88 - 3.3 2.4 - 6.6
Coil Resistance
@ 25oC, +/- 10%
3
12
Ohms
Coil Energy, max.
0.2
0.2
J
Coil Clamping
3 x nom. 3 x nom.
* 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
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
EV250 Contact Ratings
Features:
C UR RE NT vs T IM E
C ON TA CT S C LOSED I NT O 7 0 % AN D 9 0% C A PAC IT OR PR E C HA R GE
7 50
7 00
6 50
6 00
5 50
5 00
4 50
4 00
3 50
3 00
2 50
Features:
2 00
1 50
1 00
50
0
0
1
2
3
4
5
6
7
8
L IF E R A T IN G S A N D Q U A L IF IC A T IO N T E S T P L A N
Test #
C u rre n t
V o lta g e
Load Type
% P re C h a rg e
S w itc h M o d e
N o rm a l O p e ra tio n s
1
2
re fe re n c e g ra p h a n d
te s t circ u it d ia g ra m (s h t. 8 )
C a p a c itive
C a p a c itive
90%
70%
m ake
m ake
o n ly
o n ly
A b n o rm a l O p e ra tio n s
3
-2 5 0 A
320 V
R e s istiv e
N /A
m a k e / b re a k
4
2500 A
320 V
R e s istiv e
N /A
b re a k o n ly
S equence
1 0 K c y c le s
1 0 c yc le s
2
2
1
10K
10
2
2
10K
10
2
3
10K
10
2
2
4
10K
10
2
5
E tc .
C o n tin u e C y c lin g to R e la y F a ilu re
T h e te s tin g o b je c tiv e is to v e rify p ro p e r re la y fu n c tio n fo r a g ive n n u m b e r o f c o n se c u tiv e a n d cu m u la tiv e
c yc le s u n d e r b o th n o rm a l a n d a b n o rm a l co n d itio n s in a v a rie ty o f lo a d s w itc h in g a p p lic a tio n s . T h e life
ra tin g o f 4 0 K cy c le s m in im u m w a s c a lc u la te d w ith 9 5 % W e ib u ll re lia b ility .
Electrical Data (Over Temperature Range - Max. Terminal Temp. = 200oC)
Make/Break Life for Capacitive & Resistive Loads at 320 Vdc (1) (2)
@ 90% capacitive pre-charge
Cycles
50,000
@ 70% capacitive pre-charge
Cycles
50
@ -250 A (2 consecutive, reverse polarity) (1)
Cycles
10
@ 3300 A (break only, 2 consecutive) (1)
Cycles
4
Cycles
100,000
Mechanical Life
(1) Resistive load includes inductance L = 25 uH. Load @ 2500 A tested @ 200 uH.
(2) Conductor: 2 each of Copper 54 mm2 (AWG 0) required for > 250 A carry.
1 Copper (AWG 0) conductor recommneded for ≤ 250 A
(3) Life based on projected Weibull Life with 95% Reliability
19
CII Technologies / P.O. Box 4422 / Santa Barbara, CA 93140 / ph 805.684.4560 / fax 805.684.9679 / e-mail [email protected] / website www.ciitech.com