Patent Pending
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Chassis level UL508 sized power terminals – No need for specially routed power cables, special bus bars, or special lugs |
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Rugged EPIC® Seal rated to 175°C - Same technology used for advanced aerospace programs that reduces risk of fire or meltdown in over current conditions |
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Hermetically Sealed - 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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Electronics-free high efficiency coil – No EMI emissions or cross-talk on your system control power |
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Built-in coil suppression for DC coils - Saves engineering time and parts cost to add external coil suppression |
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Stainless steel hardware and mounting inserts, for years of corrosion free service |
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UL508 ambient compliant to 75°C but can operate continuously at 85°C with a higher terminal temperature rise of 60°C. Can also operate up to 125°C in special cases - contact GIGAVAC for details. |
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Not position sensitive – can be mounted in any position for ease of installation |
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Make & Break Resistive Current
with 4/0 cable and 50°
terminal temp rise |
Contact Voltages & Life Cycle Ratings
DC or 50/60 Hz AC |
| 24 V |
48 V |
72 V |
120 V |
350 V |
750 V |
| 225A - (75° C Ambient) 1/ |
150,000 |
100,000 |
40,000 |
20,000 |
7,500 |
1,200 |
| 150A - (75° C Ambient) 1/ |
225,000 |
150,000 |
60,000 |
30,000 |
11,250 |
1,800 |
| 125A - (75° C Ambient) 1/ |
270,000 |
180,000 |
72,000 |
36,000 |
13,500 |
2,160 |
| 100A - (75° C Ambient) 1/ |
337,500 |
225,000 |
90,000 |
45,000 |
16,875 |
2,700 |
| 75A - (75° C Ambient) 1/ |
450,000 |
300,000 |
120,000 |
60,000 |
22,500 |
3,600 |
| 50A - (75° C Ambient) 1/ |
675,000 |
450,000 |
180,000 |
90,000 |
33,750 |
5,400 |
| 30A - (75° C Ambient) 1/ |
1,000,000 |
750,000 |
300,000 |
150,000 |
56,250 |
9,000 |
| 20A - (75° C Ambient) 1/ |
1,000,000 |
1,000,000 |
450,000 |
225,000 |
84,375 |
13,500 |
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| 275A - (50° C Ambient) 2/ |
127,500 |
85,000 |
34,000 |
17,000 |
6,375 |
1,020 |
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Max Break A, 2 cycles
(75° C Ambient) 1/ |
2,750A |
2,200A |
1,650A |
1,100A |
990A |
660A |
Max Make, 10 cycles
(75° C Ambient) 1/ |
1,540A |
1,210A |
880A |
660A |
550A |
385A |
Electrical life rating is based on resistive load with TBD 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. |
1/ Assumes UL508 ratings with 4/0 cables, UL508 max ambient temperature of 75°C as shown, and max. UL508 terminal temperature rise of 50°C. For loads of 150A and below and the life cycle rating shown is longer than you need, you may want to consider the lesser priced GIGAVAC GX11 EPIC® sealed contactor. Smaller sized cables can be used at the lower currents - see UL specifications for recommended cable sizes.
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 4/0 cables, at a lower 50°C UL508 ambient temperature, and max. UL508 terminal temperature rise of 50°C. For loads of 225A and below and the life cycle rating shown is longer than you need, you may want to consider the lesser priced GIGAVAC GX11 EPIC® sealed contactor. Smaller sized cables can be used at the lower currents - see UL specifications for recommended cable sizes. |
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75°C / 50°C |
| Cable size 1/ |
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4 / 0 |
Continuous, UL508 Max 1/
10 seconds (1 time)
100 Seconds (1 time)
300 Seconds (1 time) |
Amp
Amp
Amp
Amp |
225 / 275
560 / 680
360 / 480
300 / 400 |
| Starter Carry – Inrush 250 ms (10 repeats 1/ 2/) |
Amp |
NA / 2,000 |
| Starter Carry - Cranking 10 sec (10 repeats 1/ 2/) |
Amp |
NA / 600 |
| Maximum terminal Temp, Continuous |
Deg C |
175 |
| Maximum terminal Temp, Intermittent |
Deg C |
225 |
1/ Assumes UL508 ratings with 4/0 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 to 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 GIGAVAC 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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| Nominal Volts |
12Vdc |
24Vdc |
48Vdc |
72Vdc |
120Vdc |
120Vac, 50/60Hz |
240Vac, 50/60Hz |
| Coil P/N Designation |
B |
C |
F |
H |
J |
K |
L |
| Max Volts |
14 |
28 |
56 |
84 |
140 |
140 |
280 |
| Pick-up, Volts, Max |
7.5 |
15 |
28 |
46 |
72 |
72 |
144 |
| Hold, Volts, Min |
4 |
9 |
18 |
28 |
46 |
46 |
92 |
| Drop-Out, Volts, Min |
0.5 |
0.5 |
1.8 |
2.7 |
4.5 |
4.5 |
9 |
| Coil Resistance @ 25ºC (Ohms ±10%) |
17 |
85 |
335 |
850 |
2125 |
N/A |
N/A |
| Coil Current, mA, Max at nominal Voltage |
700 |
280 |
150 |
90 |
56 |
TBD |
TBD |
Coil Back EMF (volts)
- Built in suppression 1/ |
55 |
55 |
100 |
150 |
288 |
N/A |
N/A |
Ratings are at worse case temperature extremes, except coil resistance and current are at 25ºC.
1/ 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 GIGAVAC for assistance.
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| Specifications |
Units |
Specifications |
| Contact Arrangement (main) |
Form X |
SPST-NO |
| Contact Arrangement (Auxilary) 1/ |
Form C |
SPDT |
| Mechanical Life |
cycles |
1 million |
Contact Resistance
Max @ rated carry current
Typical @ rated carry current |
mohms
mohms |
.4
.15 to .3 |
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) |
ms
ms
ms
ms |
20
13
7
12 |
| Insulation Resistance |
Mohms |
100 2/ |
| Dielectric at sea level (leakage < 1mA) |
VRMS |
2,500 |
| Shock |
G’s peak |
20 |
| Vibration, Sinusoidal (500-2000 Hz peak) |
G’s |
15 |
| Operating ambient Temp Range |
˚C |
-55 to +85 3/ |
| Storage ambient Temp Range |
˚C |
-70 to +175 |
| Weight, Typical |
Kg (Lb) |
0.54/(1.2) |
1/ Auxillary contact rating - 2A, 24Vdc Resistive load, 100,000 cycles.
2/ 50 Mohms after life.
3/ Contactor can operate up to 125°C in special cases - contact GIGAVAC for details. |
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C |
A |
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Coil Voltage
B = 12 Vdc, internal coil suppression
C = 24 Vdc, internal coil suppression
F = 48 Vdc, internal coil suppression
H = 72 Vdc, internal coil suppression
J = 120 Vdc, internal coil suppression
K = 115 VAC, 50/60 Hz
L = 240 VAC, 50/60Hz |
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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
A = SPDT |
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Power contacts
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Auxiliary contacts (optional)
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Application Information:
1. 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.
2. EPIC® sealing technology
3. Relay Schematics and Forms |
05/12/08
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