EV250-2A Datasheet, PDF (2/2 Pages) Tyco Electronics – Kilovac EV250-2A & 2B - 400 Amps

EV250 Contact Ratings
Features:
C UR RE NT vs TIME
C ON TA CT S C LOSED INT 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
2 00
Features:
1 50
1 00
50
0
0
1
2
3
4
5
6
7
8
LIFE RATING S AN D QUALIFICATION TEST PLAN
Norm al Operations
Abnorm al Operations
Test #
1
2
3
4
Current
reference graph and
-250 A
2500 A
V o lta g e
test circuit diagram (sht. 8)
320 V
320 V
Load Type
C apacitive
C apacitive
R esistive
R esistive
% Pre Charge
90%
70%
N /A
N /A
Switch Mode
make
make
m ake/ break
break only
o n ly
o n ly
Sequence
1
10K cycles
10 cycles
2
2
2
10K
10
2
3
10K
10
2
4
10K
10
2
2
5
10K
10
2
E tc .
Continue Cycling to Relay Failure
The testing objective is to verify proper relay function for a given num ber of consecutive and cum ulative
cycles under both norm al and abnorm al conditions in a variety of load sw itching applications. The life
rating of 40K cycles m inim um w as calculated w ith 95% W eibull reliability.
Electrical Data (Over Temperature Range - Max. Terminal Temp. = 200^oC)
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
Mechanical Life
Cycles
100,000
(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 [phone] / e-mail [e-mail] / website www.ciitech.com