Time Delay Relay – DODO-B

The Time Delay Relay – DODO-B is a field-adjustable relay designed to keep an electrical load energized for a predetermined time interval after the controlling signal is removed. This relay is specifically engineered for use in fire apparatus, ambulances, rescue vehicles, command vehicles, and other specialty vehicle electrical systems. Its compact design allows for dependable delayed shutoff control of interior lighting and other 12 VDC electrical accessories that need to remain powered temporarily after the control signal is turned off.

When a +12 VDC control signal is applied, the relay closes immediately and energizes the connected load. Once the control signal is removed, the relay remains energized for the selected delay interval before automatically returning to its normal state. The field-adjustable delay can be set from 6 to 27 minutes, with a factory set point of 15 minutes. Both normally open and normally closed 30-amp relay contacts are provided for flexible circuit integration. The relay requires three input connections: +12 VDC power, ground, and a +12 VDC control signal.

The Time Delay Relay – DODO-B is ideal for applications where temporary power maintenance is necessary after the primary control signal is deactivated. This includes but is not limited to interior lighting systems in fire trucks, emergency vehicles, and other specialized equipment that require controlled power shut-off. The relay's ability to maintain power for a customizable duration makes it a valuable component in vehicle electrical systems where precise timing is essential. Its robust construction and reliable operation ensure that it can handle the demanding conditions typical of firefighting and rescue operations.

Features

• Keeps connected electrical loads energized for a preset interval after the control signal is removed
• Relay closes immediately when the +12 VDC control signal is applied
• Adjustable delayed drop-out operation provides automatic load shutoff control
• Field-adjustable time delay from 6 to 27 minutes
• Factory time delay set point of 15 minutes
• Heavy-duty 30-amp relay contacts provide dependable load control
• Normally open and normally closed contacts provide flexible circuit configurations
• Requires +12 VDC power, ground, and a +12 VDC control signal
• Extended delay range is ideal for interior lighting and other accessories that must remain powered temporarily after shutdown
• Compact design simplifies installation in vehicle electrical systems
• Ideal for fire apparatus, ambulances, rescue vehicles, command vehicles, and specialty vehicle electrical systems
• Backed by a 3-year manufacturer's warranty

Specifications

• Manufacturer: Kussmaul Electronics
• Product Type: Adjustable Time Delay Relay
• Model: DODO-B
• Product Code: 091-103-012-B
• Relay Operation: Immediate Activation with Delayed Drop-Out
• Input Voltage: 12 VDC
• Relay Contact Rating: 30 Amps
• Relay Contacts: Normally Open and Normally Closed
• Minimum Time Delay: 6 Minutes
• Maximum Time Delay: 27 Minutes
• Time Delay Set Point: 15 Minutes
• Time Delay Adjustment: Field Adjustable
• Input Connections: +12 VDC Power, Ground, and +12 VDC Control Signal
• Weight: 0.25 lbs.
• Warranty: 3-Year Manufacturer's Warranty

Availability and lead time are subject to confirmation.