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GV21 Series 900VDC SPST-NO Contactor for Harsh Environments

The GIGAVAC GV21 Series contactors are hermetically sealed, gas-filled units designed for use in harsh environments. The compact GV21 Series features contact voltage ratings ranging from 12 VDC to 900 VDC and a hot switchable continuous carry current of 100 A, making it ideal for handling challenging applications.

GIGAVAC's unique switching systems can be installed in any location and are sealed to withstand harsh environments. The GV21 Series contactors are RoHS, CE, and IATF-16949 compliant and designed to meet these requirements.

Features

  • The product is hermetically sealed and 100 % safe. It does not depend on the mounting location.
  • Provides high voltage isolation between open contacts and an inert gas-filled chamber
  • An inert gas-filled contact chamber provides high voltage isolation between open contacts.
  • Performs in hazardous settings without polluting contacts
  • Suitable for use in hazardous or classified working conditions
  • Designed and constructed in line with IATF-16949
  • Using flying leads for coil connections

Applications

  • Photovoltaic controls
  • Energy Storage Systems
  • Battery-powered electric automobiles
  • Protection for DC motor controllers
  • DC fast charging

Specifications

Source: Sensata Technologies, Inc.

. . .
Contact Arrangement   Main Contacts SPST-NO (Form X)
Mechanical Life   One million cycles
Contact Resistance   0.5 mΩ (max) @ 100 A
Shock, 11 ms 1/2 sine (operating)   20G peak
Sine Vibration, 55–2000 Hz.   20G peak
Weight   6.7 oz (190 g)
Voltage Rating: Main Contacts (max)   900 VDC
Current Rating:
Main Contacts
Continuous (8.4 mm2 / 8 AWG)1 100 A
Continuous (21 mm2 / 4 AWG)1 150 A
Short Term -- 3 Minutes2 200 A
Maximum Short Circuit Current
(1/2 cycle, 60 Hz) (through closed contacts)
1250 A
Dielectric Withstand Voltage (ASTM D149) Between Open Contacts > 5000 Vrms
Contacts to Coil > 3000 Vrms
Insulation Resistance, Terminal to
Terminal/Terminals to Coil
When New 500 MΩ, min. @ 500 Vdc
At End of Life 50 MΩ, min. @ 500 Vdc
Operating Temperature Range   -40 °C to 85 °C
Environmental Seal   Exceeds IP67 and IP69
Salt Fog Spray   MIL-STD-810G

1. Current rating depends on conductor size. Keep power terminals below 150 °C (maximum).
2. Three minutes at +40 °C ambient with 8.4 mm2 (#8 AWG) conductor

Coil Ratings at 25 °C

Source: Sensata Technologies, Inc.

. . . .
Nominal Voltage 12 VDC 24 VDC 48 VDC
Maximum Voltage 16 VDC 28 VDC 52 VDC
Pick Up Voltage Up to 9.6 VDC 16 VDC 33 VDC
Drop Out Voltage 1.2 VDC 2.4 VDC 4.8 VDC
Coil Current 461 mA 250 mA 122 mA
Coil Power 5.5 W 6.0 W 6.0 W
Coil Resistance ± 5 % (ohms) 26 96 392
Operate Time 25 ms
Release Time 10 ms

DC Power Switching Cycles

Graph mapping life cycle against current in DC power switching cycles for 400, 650, and 900 VDC.

Image Credit: Sensata Technologies, Inc.

Dimensions

  • Dimensions are expressed in millimeters
  • The coil terminals are X1 (+) and X2 (-)
  • Unless specified, all measures are +/- 0.5 mm

Graph showing current against time for 2, 4, and 8 AWG.

Image Credit: Sensata Technologies, Inc.

The load terminals of the GV21 contactor.

Image Credit: Sensata Technologies, Inc.

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