KILOVAC 28-1800 Vdc Traditional Contactors
EV250-1A & 1B 400 Amps CZONKA-II EVX Make & Break Load Switching
Product Facts
n
Hydrogen dielectric for
power switching high
current loads
n
400 A carry, 2,500 A
interrupt @ 320 Vdc
n
Suited for circuit protection,
control, battery switching,
and main power safety
disconnect
n
Versatile power, voltage,
and current operating range:
28-1800 Vdc tested
n
Low-cost compact version
for volume production
applications. Requires
external coil economizer
(PWM or lower hold
voltage)
n
“Hammer effect”
mechanism breaks light
contact welds
n
“Super-sealed”
environment chamber
uniquely protects ALL
moving parts
n
Can operate in harsh
environments
n
Moving contact rotates to
provide fresh contact
surface for low contact
resistance and low power
consumption
n
Sealed control connector.
Mating connector with flying
leads Part Number 2005
available, see page 7-95
n
Logic control enabled by
external economizer Part
Number 9913
n
High temperature (135°C)
model with 10 inch flying
leads available (-4A — Call
TE for sales drawing)
n
Bi-directional power
switching
n
Fast operate and release
time
Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.
Product Specifications
Contact Arrangement — SPST-NO
Contact Form — X
Continuous Current Carry, Max. —
400 A; 6.5 Minutes — 500 A
Break Current @ 320 Vdc —
2,500 A
Contact Resistance, Max. —
0.0003 ohm
Contact Resistance, Typ. —
0.0001 – 0.0002 ohm
Dielectric at Sea Level
(Leakage < 1mA) — 2,200 Vrms
Shock, 11ms, 1/2 Sine (Peak),
Operating — 30 g
Vibration, Sinusoidal
(80-2000 Hz, Peak) — 20 g
Operating Ambient Temperature
Range — -40°C to +85°C
Load Life — See chart on next page
Operate Time, @ 25°C —
Close (Includes Bounce), Typ. —
30 ms
Bounce (After Close Only), Max. —
5 ms
Open (Includes Arcing), Max. —
15 ms
Insulation Resistance @ 500 Vdc,
Min. — 100 mohm
Weight, Nominal —
1.54 lb (0.7 kg)
Contact Ratings*
*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.
Coil Data***
Voltage, Nominal*
Pickup (Close), Max.
Continuous Hold, Max./Min.**
Dropout (Open), Min.
Coil Resistance @ 25°C, ±10%
Coil Energy, Max.
Coil Clamping
EV250-1A
12 Vdc
8.3 Vdc
5.1/3.8 Vdc
0.88 - 3.3 Vdc
3Ω
0.2 J
3 x nom.
EV250-1B
24 Vdc
16.6 Vdc
10.2/7.6 Vdc
2.4 - 6.6 Vdc
12 Ω
0.2 J
3 x nom.
*Do not apply continuously. 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.
Ordering Information
Sample Part Number 䊳
EV250-1 A
Series:
Coil Voltage:
A = 12 Vdc, Nominal
B = 24 Vdc, Nominal
For factory-direct application assistance,
dial 800-253-4560, ext. 2055, or
805-220-2055.
For detailed specifications and recommendations, refer to the
EV250-1A & B sales drawings.
7–42
Catalog 5-1773450-5
Revised 3-13
www.te.com
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
Dimensions are in millimeters
unless otherwise specified.
USA: +1 800 522 6752
Asia Pacific: +86 0 400 820 6015
UK: +44 800 267 666
For additional support numbers
please visit www.te.com
KILOVAC 28-1800 Vdc Traditional Contactors
EV250-1A & 1B 400 Amps CZONKA-II EVX Make & Break Load Switching (Continued)
Current vs Time
Life Ratings and Qualification Test Plan
Test #
Current
Voltage
Load Type
% Pre Charge
Switch Mode
Sequence
1
2
3
4
5
Etc.
Normal Operations
1
2
Reference Graph and
Test Circuit Diagram (Sht. 8)
Abnormal Operations
3
-250 A
320 V
Resistive
NA
Make/Break
Capacitive
90%
Make Only
Capacitive
70%
Make Only
10K cycles
10K
10K
10K
10K
10 cycles
2
10
2
10
2
10
2
10
2
Continue Cycling to Relay Failure
4
2500 A
320 V
Resistive
N/A
Break Only
2
—
—
2
—
The testing objective is to verify proper relay function for a given number of consecutive and cumulative cycles under
both normal and abnormal conditions in a variety of load switching applications. The life rating of 40K cycles minimum
was calculated with 95% Weibull reliability.
7
KILOVAC 28-1800 Vdc
Traditional Contactors
Electrical Data
(Over Temperature Range —
Max. Terminal Temp. = 200°C)
For factory-direct application assistance,
dial 800-253-4560, ext. 2055, or
805-220-2055.
Make/Break Life for Capacitive &
Resistive Loads at 320 Vdc 1,2 —
@ 90% Capacitive Pre-Charge —
50,000 cycles
@ 70% Capacitive Pre-Charge —
50 cycles
@ -250 A (2 Consecutive, Reverse
Polarity) 1 — 10 cycles
@ 3300 A (Break only,
2 Consecutive) 1 — 4 cycles
Mechanical Life — 100,000 cycles
Notes:
1 Resistive load includes inductance
L = 25 µH. Load @ 2500 A tested
@ 200 µH.
2 Conductor: 2 each of copper
54 mm2 (AWG 0) required for
> 250 A carry. 1 Copper (AWG 0)
conductor recommended for
≤ 250 A
7–43
Catalog 5-1773450-5
Revised 3-13
www.te.com
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
Dimensions are in millimeters
unless otherwise specified.
USA: +1 800 522 6752
Asia Pacific: +86 0 400 820 6015
UK: +44 800 267 666
For additional support numbers
please visit www.te.com
KILOVAC 28-1800 Vdc Traditional Contactors
EV250-2A & 2B 400 Amps CZONKA II EVX Make & Break Load Switching
Product Facts
n
Hydrogen dielectric for
power switching high
current loads
n
400 A carry, 2,500 A
interrupt @ 320 Vdc
n
Suited for circuit protection,
control, battery switching,
and main power safety
disconnect
n
Versatile power, voltage,
and current operating range:
28-1800 Vdc tested
n
Internal coil economizer
provides:
n 4W typical hold power
independent of temperature & voltage range
n EMI spectrum tested and
approved
n Built-in coil suppression
n
“Hammer effect”
mechanism breaks light
contact welds
n
Hermetically “Supersealed” environment
chamber uniquely protects
ALL moving parts
n
Can operate in harsh
environments
n
Moving contact rotates to
provide fresh contact
surface for low contact
resistance and low power
consumption
n
n
Sealed control connector.
Mating connector with flying
leads Part Number 2005
available
Special versions available:
n Economical (-8A/B) for
light duty power switching (without arc blowout
magnets)
n 10 inch flying leads
model (-7A)
Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.
Product Specifications
Contact Ratings*
Contact Arrangement — SPST-NO
Contact Form — X
Continuous Current Carry, Max. —
400 A; 6.5 Minutes — 500 A
Break Current @ 320 Vdc —
2,500 A
Contact Resistance, Max. —
0.0003 ohm
Contact Resistance, Typ. —
0.0001 – 0.0002 ohm
Dielectric at Sea Level
(Leakage < 1mA) — 2,200 Vrms
Shock, 11ms, 1/2 Sine (Peak),
Operating — 30 g
Vibration, Sinusoidal
(80-2000 Hz, Peak) — 20 g
Operating Ambient Temperature
Range — -40°C to +85°C
Load Life — See chart on next page
Operate Time, @ 25°C —
Close (Includes Bounce), Typ. —
18 ms
Bounce (After Close Only), Max. —
5 ms
Release Time (Includes Arcing),
Max. — 15 ms
Insulation Resistance @ 500 Vdc,
Min. — 100 mohm
Weight, Nominal —
1.76 lb (0.8 kg)
*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.
Coil Data**
Voltage, Nominal*
Pickup (Close), Max.
Hold, Min.
Dropout (Open), Min.
Current (@ VsNom / 25°C)
Inrush
Holding, Standby
Inrush Time, Max.
EV250-2A
12 Vdc
9 Vdc
7 Vdc
5 Vdc
EV250-2B
24 Vdc
18 Vdc
14 Vdc
10 Vdc
2.8 A
0.34 A
200 ms
1.8 A
0.11 A
200 ms
*Other special coil voltages available upon request.
**Do not use a free wheeling diode or capacitor across the coil. Built in
suppression limits back EMF to zero volts.
Ordering Information
Sample Part Number 䊳
EV250 -2 A
Series:
Model:
2 = With Blowout Magnets
8 = Without Blowout Magnets
7 = 10" Flying Leads (12 V, with Magnets Only)
For factory-direct application assistance,
dial 800-253-4560, ext. 2055, or
805-220-2055.
Coil Voltage:
A = 12 Vdc, Nominal
B = 24 Vdc, Nominal
For detailed specifications and recommendations, refer to the
EV250-2A & B or 7A sales drawings.
7–44
Catalog 5-1773450-5
Revised 3-13
www.te.com
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
Dimensions are in millimeters
unless otherwise specified.
USA: +1 800 522 6752
Asia Pacific: +86 0 400 820 6015
UK: +44 800 267 666
For additional support numbers
please visit www.te.com
KILOVAC 28-1800 Vdc Traditional Contactors
EV250-2A & 2B 400 Amps CZONKA II EVX Make & Break Load Switching (Continued)
Life Ratings and Qualification Test Plan
Test #
Current
Voltage
Load Type
% Pre Charge
Switch Mode
Sequence
1
2
3
4
5
Etc.
Normal Operations
1
2
Reference Graph and
Test Circuit Diagram (Sht. 8)
Abnormal Operations
3
-250 A
320 V
Resistive
NA
Make/Break
Capacitive
90%
Make Only
Capacitive
70%
Make Only
10K cycles
10K
10K
10K
10K
10 cycles
2
10
2
10
2
10
2
10
2
Continue Cycling to Relay Failure
4
2500 A
320 V
Resistive
N/A
Break Only
2
—
—
2
—
The testing objective is to verify proper relay function for a given number of consecutive and cumulative cycles under
both normal and abnormal conditions in a variety of load switching applications. The life rating of 40K cycles minimum
was calculated with 95% Weibull reliability.
7
KILOVAC 28-1800 Vdc
Traditional Contactors
Electrical Data
(Over Temperature Range —
Max. Terminal Temp. = 200°C)
For factory-direct application assistance,
dial 800-253-4560, ext. 2055, or
805-220-2055.
Make/Break Life for Capacitive &
Resistive Loads at 320 Vdc 1,2 —
@ 90% Capacitive Pre-Charge —
50,000 cycles
@ 70% Capacitive Pre-Charge —
50 cycles
@ -250 A (2 Consecutive, Reverse
Polarity) 1 — 10 cycles
@ 3300 A (Break only,
2 Consecutive) 1 — 4 cycles
Mechanical Life — 100,000 cycles
Notes:
1 Resistive load includes inductance
L = 25 µH. Load @ 2500 A tested
@ 200 µH.
2 Conductor: 2 each of copper
54 mm2 (AWG 0) required for
> 250 A carry. 1 Copper (AWG 0)
conductor recommended for
≤ 250 A
7–45
Catalog 5-1773450-5
Revised 3-13
www.te.com
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
Dimensions are in millimeters
unless otherwise specified.
USA: +1 800 522 6752
Asia Pacific: +86 0 400 820 6015
UK: +44 800 267 666
For additional support numbers
please visit www.te.com
