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JD2912 Automotive DC Relay

With spade terminals, 40A, SPST

Wiring Diagrams & Relay Types:

1/4" (6.3 mm) Spade Terminal Socket

Derived and developed from Bosch type automotive DC relay, JD2912 relays are widely used in various DC current switching circuits. Main applications include:

• Automotive light & horn
• Engine starter
• Telecommunication remote DC power station
• Photovoltaic energy grid
• Electric vehicle & marine vessel control
• Etc.

KEY FEATURES

• Model: JD2912-1A (JD2912-1H)
• Relay Type: Single Pole Single Thrwo, Normal Open (SPST, NO)
• Nominal Current Rating: 40A (Max. Switching Current)
• Intermittent Current Rating:
  • 1% Duty: 40A
  • 2% Duty: 35A
  • 3% Duty: 32A
  • 5% Duty: 30A
  • 10% Duty: 25A
  • 20% Duty: 20A
  • 30% Duty: 15A
  • 50% Duty: 10A
  • 100% Duty: 5A
• Control Coil Working Voltage:
  • 12V
  • 24V
  • 36V
  • 48V
• Coil Consumption: 1.8W
• Contact Resistance: ≤ 50mΩ
• Isolation Resistance: ≥ 1.0MΩ
• Electric Life: 100,000 times
• Mechanic Life: 10,000,000 times
• Electrical Isolation:
  • Between open contacts: 500VAC
  • Between coil contacts: 500VAC
• Connection: 1/4" (6.3mm) Spade Contactors (Included)
• Working Temperature: -25°C – +100°C
• Product Weight: 32.5g

Contacts' Layout:

We supply also the DC relay JD2912

• 6VDC / 40A SPST JD2912-1A, one normal open DC relay, with metal bracket
• 12-72VDC / 40A SPST JD2912, one normal open DC relay, with metal bracket
• 40A / 60A JD2912, without or with integrated plastic bracket
• 80A JD2912, 1/4" (6.3 mm) spade terminal for control coil, 3/8" (9.5 mm) spade terminal for main contacts

Waterproof DC relay JD2912-S ("S" means "sealed") is also available:

• 40A JD2912-S
• 60A JD2912-S

Wiring:

• Control coil terminals: Pin 85 and Pin 86. Recommended that B+ (DC source positive, corresponds to rated working voltage) connects to Pin 85, and B- (DC source negative) connects to Pin 86. If not specifically noted, the poles can be reversed between Pin 85 and Pin 86.
• Main contacts: Pin 87 and Pin 30.

The mating spade terminals will be provided with the relay: 1/4" (6.3 mm) (4 pieces, cold press type, socket), maximally fitting to AWG#9 wire (wire diameter 2.9 mm, section area 6.6 mm²).

Wiring Diagrams & Relay Types:

1/4" (6.3 mm) Spade Terminal Socket

Derived and developed from Bosch type automotive DC relay, JD2912 relays are widely used in various DC current switching circuits. Main applications include:

• Automotive light & horn
• Engine starter
• Telecommunication remote DC power station
• Photovoltaic energy grid
• Electric vehicle & marine vessel control
• Etc.

KEY FEATURES

• Model: JD2912-1A (JD2912-1H)
• Relay Type: Single Pole Single Thrwo, Normal Open (SPST, NO)
• Nominal Current Rating: 40A (Max. Switching Current)
• Intermittent Current Rating:
  • 1% Duty: 40A
  • 2% Duty: 35A
  • 3% Duty: 32A
  • 5% Duty: 30A
  • 10% Duty: 25A
  • 20% Duty: 20A
  • 30% Duty: 15A
  • 50% Duty: 10A
  • 100% Duty: 5A
• Control Coil Working Voltage:
  • 12V
  • 24V
  • 36V
  • 48V
• Coil Consumption: 1.8W
• Contact Resistance: ≤ 50mΩ
• Isolation Resistance: ≥ 1.0MΩ
• Electric Life: 100,000 times
• Mechanic Life: 10,000,000 times
• Electrical Isolation:
  • Between open contacts: 500VAC
  • Between coil contacts: 500VAC
• Connection: 1/4" (6.3mm) Spade Contactors (Included)
• Working Temperature: -25°C – +100°C
• Product Weight: 32.5g

Contacts' Layout:

We supply also the DC relay JD2912

• 6VDC / 40A SPST JD2912-1A, one normal open DC relay, with metal bracket
• 12-72VDC / 40A SPST JD2912, one normal open DC relay, with metal bracket
• 40A / 60A JD2912, without or with integrated plastic bracket
• 80A JD2912, 1/4" (6.3 mm) spade terminal for control coil, 3/8" (9.5 mm) spade terminal for main contacts

Waterproof DC relay JD2912-S ("S" means "sealed") is also available:

• 40A JD2912-S
• 60A JD2912-S

Wiring:

• Control coil terminals: Pin 85 and Pin 86. Recommended that B+ (DC source positive, corresponds to rated working voltage) connects to Pin 85, and B- (DC source negative) connects to Pin 86. If not specifically noted, the poles can be reversed between Pin 85 and Pin 86.
• Main contacts: Pin 87 and Pin 30.

The mating spade terminals will be provided with the relay: 1/4" (6.3 mm) (4 pieces, cold press type, socket), maximally fitting to AWG#9 wire (wire diameter 2.9 mm, section area 6.6 mm²).