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12V / 24V Engine Starter DC Relay

Max switching current: 500A; max switching power rate: 7.2 kW

Connecting Kit

Overview

The 12V / 24V - 500A JD1912 DC relays are specially designed for feeding DC power to engine / motor starter.

With its sealed structure and high arc erosion resisting contact material, this relay model can also be used as an universal DC power switch for various applications:

• Motor starter
• Automotive power control relay
• Automotive and railway signal switch
• Electric motor control relay
• Remote power swtiching (windmill or solar power generating station)

Specifications:

• Model:
  • 12V relay: JD1912-500A-12VDC-1A-S (or JD1912-500A-12VDC-1H-S)
  • 24V relay: JD1912-500A-24VDC-1A-S (or JD1912-500A-24VDC-1H-S)

• Inrush current: 500A
• Continuous working current: 100A
• One silver plated contact group, normal open (marked as 1A type or 1H type)
• Sealed type power switching structure
• Coil resistance: ≤ 20Ω @ 12VDC; ≤ 80Ω @ 24VDC
• Coil cold active voltage:
  • 12V relay:
    • Close: minimum 7.8VDC
    • Release: minimum 1.2VDC
  • 24V relay:
    • Close: minimum 15.6VDC
    • Release: minimum 2.4VDC
• Operation time:
  • Close: ≤ 50ms
  • Release: ≤ 50ms
• Contact material: AgSnO₂In₂O₃
• Ambient temperature: -30 ~ +80°C
• Lift span:
  • Electric: 100,000 times @ frequency 30 times / minute
  • Mechanical: 10,000,000 times
• Net weight: 235 grams

Characteristics:

• Vibration resistance: 10-55 Hz / 1.5 mm
• Shock resistance:
  • Operation extreme: 50g
  • Damage limit: 100g
• Working environment humidity: 40-85%
• Insulation: minimum 100 mΩ @ 500VDC
• Dielectric strenght between open contacts: 2000VAC
• Dielectric strenght between contact and coil: 1500VAC
• Dimension: 55 x 76 x 85 mm

JD1912 500A relay can replace:

• CUMMINS engine part (typical engine models: CLG915D、CLG920D、CLG922D、CLG923D、CLG925D): 3916301 / 3916302; 6CT8.3
• White Rodgers: 120-114751-2

Wiring diagram (engine starter):

Product size (unit: mm):

Connecting Kit

Overview

The 12V / 24V - 500A JD1912 DC relays are specially designed for feeding DC power to engine / motor starter.

With its sealed structure and high arc erosion resisting contact material, this relay model can also be used as an universal DC power switch for various applications:

• Motor starter
• Automotive power control relay
• Automotive and railway signal switch
• Electric motor control relay
• Remote power swtiching (windmill or solar power generating station)

Specifications:

• Model:
  • 12V relay: JD1912-500A-12VDC-1A-S (or JD1912-500A-12VDC-1H-S)
  • 24V relay: JD1912-500A-24VDC-1A-S (or JD1912-500A-24VDC-1H-S)

• Inrush current: 500A
• Continuous working current: 100A
• One silver plated contact group, normal open (marked as 1A type or 1H type)
• Sealed type power switching structure
• Coil resistance: ≤ 20Ω @ 12VDC; ≤ 80Ω @ 24VDC
• Coil cold active voltage:
  • 12V relay:
    • Close: minimum 7.8VDC
    • Release: minimum 1.2VDC
  • 24V relay:
    • Close: minimum 15.6VDC
    • Release: minimum 2.4VDC
• Operation time:
  • Close: ≤ 50ms
  • Release: ≤ 50ms
• Contact material: AgSnO₂In₂O₃
• Ambient temperature: -30 ~ +80°C
• Lift span:
  • Electric: 100,000 times @ frequency 30 times / minute
  • Mechanical: 10,000,000 times
• Net weight: 235 grams

Characteristics:

• Vibration resistance: 10-55 Hz / 1.5 mm
• Shock resistance:
  • Operation extreme: 50g
  • Damage limit: 100g
• Working environment humidity: 40-85%
• Insulation: minimum 100 mΩ @ 500VDC
• Dielectric strenght between open contacts: 2000VAC
• Dielectric strenght between contact and coil: 1500VAC
• Dimension: 55 x 76 x 85 mm

JD1912 500A relay can replace:

• CUMMINS engine part (typical engine models: CLG915D、CLG920D、CLG922D、CLG923D、CLG925D): 3916301 / 3916302; 6CT8.3
• White Rodgers: 120-114751-2

Wiring diagram (engine starter):

Product size (unit: mm):