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EPIC® Hermetic Sealed DC and AC
Contactor - 350+ Amp Power Switching
RoHS Compliant, all date codes
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Rugged EPIC®
Ceramic-to-Metal Seal Rated to 175°C – Reduced risk of fire or meltdown in over-current
conditions compared to the less-durable epoxy seal.
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EPIC® Hermetic Seal – Designed to meet UL1604
for Class I & II, Div 2 and Class III for use in hazardous
locations, IP67 for temporary water immersion for 30 min, SAE J1171 -
external ignition protection, and ISO8846 for protection against
ignition around flammable gasses.
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High Efficiency Dual Coils - Unlike the PWM coil
economizer found in other contactors that can cause cross-talk on your
system control power or radiate noise, the Contactor uses two
coils. One drops out after the contactor is energized providing low
power to keep the contactor energized.
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No Exposed Coil Electronics - The Contactor
can operate almost anywhere, even under water - unlike other contactors
with exposed PWM coil electronics that can fail in harsh environments.
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Built-in Power Terminal
Safety Cover - Extra assurance of a
safer connection without the use of metal fastening screws. Can also be
easily permanently removed in applications where not needed.
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Fully RoHS Compliant - It is fully
compliant and is better for the environment and future generations.
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Built-in coil suppression - Saves you THE
engineering time and parts cost to add external coil suppression.
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Clear & Precise
Specifications –
No guessing to see if the contactor will work in your
application.
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Make & Break Resistive Current
with 400 KCmil cable and 50°
terminal temp rise
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Contact Voltages & Life Cycle Ratings
DC or 50/60 Hz AC
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24 V
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48 V
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72 V
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120 V
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350 V
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350A - (75° C
Ambient) 1/
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75,000
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56,250
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26,250
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15,000
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3,000
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225A - (75° C
Ambient) 1/
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100,000
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75,000
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35,000
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20,000
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4,000
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150A - (75° C
Ambient) 1/
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120,000
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90,000
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42,000
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24,000
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4,800
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125A - (75° C Ambient) 1/
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150,000
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112,500
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52,500
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30,000
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6,000
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100A - (75° C Ambient) 1/
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200,000
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150,000
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70,000
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40,000
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8,000
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75A - (75° C Ambient) 1/
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290,000
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217,500
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101,500
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58,000
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11,600
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50A - (75° C Ambient) 1/
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500,000
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375,000
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175,000
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100,000
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20,000
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30A - (75° C
Ambient) 1/
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600,000
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450,000
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210,000
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120,000
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24,000
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20A - (75° C Ambient) 1/
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700,000
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525,000
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245,000
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140,000
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28,000
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400A - (50° C Ambient) 2/
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60,000
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45,000
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21,000
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12,000
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2,400
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Max Break A, 2 cycles
(75° C Ambient) 1/
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3,900A
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3,600A
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2,900A
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2,200A
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1,980A
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Max Make, 10 cycles
(75° C Ambient) 1/
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1,000A
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900A
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800A
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700A
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600A
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Electrical life rating is based on resistive load with 27µH maximum
inductance in circuit. Because your application may be different, we
suggest you test the contactor in your circuit to verify life is as
required.
End of life is defined as when the dielectric, insulation resistance or
contact resistance exceeds the specifications listed.
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1/ Assumes UL508 ratings with 400 KCmil cables, UL508 max ambient
temperature of 75°C as shown, and max. UL508 terminal temperature rise of
50°C. For less than 100A, standard UL recommended cable sizes are assumed.
At 85°C ambient, contactor can also meet all of its 75°C specifications but
the terminal temperature can rise can be up to 60°C, which is higher than
the 50°C rise allowed by UL508 and can be higher than some cable insulation
ratings.
2/ Assumes UL508 ratings with 400 KCmil cables, at a lower 50°C UL508
ambient temperature, and max. UL508 terminal temperature rise of 50°C.
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75°C / 50°C
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Cable size 1/
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KCmil
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400
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Continuous, UL508 Max 1/
10 seconds (1 time)
100 Seconds (1 time)
300 Seconds (1 time)
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Amp
Amp
Amp
Amp
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350 / 400
525 / 710
390 / 510
350 / 400
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Starter Carry – Inrush
250 ms (10 repeats 1/ 2/)
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Amp
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NA / 2,000
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Starter Carry - Cranking
10 sec (10 repeats 1/ 2/)
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Amp
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NA / 500
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Maximum terminal Temp,
Continuous
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Deg C
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175
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Maximum terminal Temp,
Intermittent
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Deg C
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225
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1/ Assumes UL508 ratings with
400 KCmil cables, ambient max. UL508 temperature of 75°C, and max. UL508
terminal temperature rise of 50°C. Contactor can also carry the higher
currents shown on page 2 at 50°C ambient, and meet all of the UL508
requirements.
Contactor meets all of its published specifications at 85°C ambient, but
terminal temperature can rise 60°C, which is higher than the 50°C allowed
by UL508.
The maximum terminal temperature rating is 175°C, which means much higher
currents than shown on page 2 can be carried and switched. However, this
temperature is much higher than most cable insulation ratings, which mean
busbars must be used. Contact ECPC for assistance for higher current
applications.
2/ Rating consists of combined inrush + cranking current at the times
specified, with 2 seconds off between cycles. This is higher current than
is required for UL1107 for marine battery switches.
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Coil Voltage
(Nominal)
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12Vdc
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24Vdc
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48Vdc
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Coil P/N Designation
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B
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C
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F
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Coil Voltage (Max) 1/
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15
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30
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60
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In-Rush Current Max (75
ms) – Amps 2/ 3/
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4.0
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1.7
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0.9
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Hold Current after
in-rush (Avg.) - Amps 3/
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0.30
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0.12
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0.06
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Hold Power after in-rush
(Avg.) – Watts 3/
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3.6
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3.0
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2.9
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Pick-up, Volts, Max 2/ 4/ 5/
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7.5
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15.0
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40
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Hold, Volts, Min 5/
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5.0
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10.0
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22
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Drop-Out, Volts, Min 5/
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0.5
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2.0
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2
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Coil Back EMF (volts) 6/
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45
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45
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110
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Ratings
are at 25ºC. For specific values at other temperatures, please contact ECPC.
1/ Because the contactor is
operated by a coil that changes resistance with temperature, the maximum
coil voltage will be lower than indicated at temperatures above 25C, and
higher than indicated at temperatures below 25C.
2/ Contactor has two coils. Both
are used for pull-in, and then in approximately 75 milliseconds, one coil
is electronically removed from the coil drive circuit. The remaining coil
supplies low continuous hold power sufficient for the contactor to meet all
of its specified performance specifications. This provides the lowest coil
power possible without the use of PWM electronics that have been known to
cause EMI emissions and/or cross-talk on your system control power.
3/ Because the contactor is
operated by a coil that changes resistance with temperature, and because
Nominal Coil voltage has been assumed for the In-Rush, Hold Current and
Hold Power specifications, Current/Wattage will be lower than indicated at
temperatures above 25C and higher than indicated at temperatures below 25C.
4/ For Pick-up testing of
contactors with dual coils, the voltage can not be ramped up slowly, but
must be applied instantly to at least the maximum pull-in voltage or
current. Otherwise, the contactor will not pick-up.
5/ Because the contactor is
operated by a coil that changes resistance with temperature, Pick-up
Voltage, Hold Voltage, and Drop Out Voltage will be lower than indicated at
temperatures below 25C and higher than indicated at temperatures above 25C.
6/ These DC coils have built-in
coil suppression. The use of additional external coil suppression can slow
the release time and invalidate the life cycle ratings, or can cause the
contactor not to be able to interrupt the maximum current specified. If
lower coil back EMF is required, please contact ECPC for assistance
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Specifications
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Units
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Specifications
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Contact Arrangement
(main)
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Form X
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SPST-NO
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Contact Arrangement
(Auxilary) 1/
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Form A
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SPST-NO
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Mechanical Life
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cycles
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1 million
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Contact Resistance
Max @ rated carry current
Typical @ rated carry current
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mohms
mohms
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.4
.15 to .3
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Operate time, 25˚C
Close (includes bounce) Max
Close (includes bounce) Typical
Bounce on close, Max
Release time (includes arc time at max. break current)
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ms
ms
ms
ms
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20
13
7
12
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Insulation Resistance
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Mohms
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100 2/
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Dielectric at sea level
(leakage < 1mA)
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VRMS
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2,500
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Shock
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G’s peak
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20
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Vibration, Sinusoidal
(500-2000 Hz peak)
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G’s
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15
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Operating ambient Temp
Range
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˚C
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-55 to +85 3/
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Storage ambient Temp
Range
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˚C
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-70 to +175
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Weight, Typical
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Kg (Lb)
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0.44/(0.98)
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1/ Auxillary contact rating -
2A, 24Vdc Resistive load, 100,000 cycles. Minimum current is 1mA, 5V. The
auxiliary contact is mechanically linked to the main power contacts.
2/ 50 Mohms after life.
3/ Contactor can operate up to 125°C in special cases - contact ECPC for
details.
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B
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C
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B
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Coil
Voltage
B = 12 Vdc, internal coil suppression
C = 24 Vdc, internal coil suppression
F = 48 Vdc, internal coil suppression
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Coil Termination
A = Flying leads, 38 cm (15 in)
B = Flying leads, 61 cm (24 in)
C = Flying leads, 122 cm (48 in)
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Auxiliary Contact (same length as coil wire selection)
Blank = None
B = SPST, Normally Open
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A. Push the tab of the cover to unlock it.
B. Lift the cover as shown above in the picture section. It will
pivot on the rear pin.
C. If needed, remove the cover by pulling it straight back as shown.
D. To place the cover back in its original position, replace the
cover as shown. Follow step C in reverse.
E. The cover can now pivot down to close.
F. Make sure to push the locking tab into place.
Application Information:
WARNING - When using more than
one lug on a power terminal, make sure the primary power is closest to the
contactor busbar, with the lower current lug on top, then the washer, then
the lock washer, then the nut. Improper order can cause severe
over-heating resulting in the possible melting of the connecting cable
insulation.
The use and the manner of use of
controller products shall be the responsibility of the customer. The
customer covenants and agrees to indemnify and save harmless ECPC in
respect to any loss or damage that may arise through the use by the
customer or others, of any of ECPC’s products.
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