Home > Relays > Time Delay Relays >

Macromatic THR-3816U Multi-Function Encapsulated Time Delay Relay

Macromatic THR-3816U Time Delay Relay
Macromatic THR-3816U Multi-Function Encapsulated Time Delay Relay

Alternative Views:

Our Price: $59.28
MFG P/N: THR-3816U
MFG: Macromatic
Weight (lbs): 0.5

Delivery Time: 5-10 Business Days
Product Code: THR-3816U


The Macromatic THR-3816U is a programmable Time Delay Relay. This encapsulated, multi-range, multi-voltage relay has an input voltage of 24-240V AC and a 12-125V DC. It is a multi-function unit with 4 different settings and a time range of 0.1 sec to 100 minutes. The THR-3816U has an output of 10A SPDT which accommodates pilot duty and fractional HP loads. The time delay can be changed either on the unit or remotely. Featuring dimensions of 2" x 2", the encasement of the unit allows it to be used under more extreme conditions. Settings are chosen using DIP switches.

On Delay
Off Delay
Single Shot
Time Delay Options
Onboard Adjustable Time Delay
Onboard Fixed Time Delay
Remote Time Delay


  • Relay Function- Multi-Function
  • Mounting Style- Surface Mount using a #8 or #10 screw
  • Termination- 0.25" Male Quick Connect Terminals
  • Relay Timing Range- 0.1 Sec - 100 min
  • Input Voltage- 24-240V AC, 12-125V DC
  • Output- 10A SPDT
  • Voltage Tolerance- AC Operation: +10/-15% of nominal at 50/60 Hz.
    DC Operation: +10/-15% of nominal.
  • Load- 2VA
  • Setting Accuracy- Maximum Setting (Adjustable): +5%, -0%
    Minimum Setting (Adjustable): +0%, -50%
  • Repeat Accuracy- The greater amount of +/- 0.1% or +/- 0.04 Sec
  • Reset Time- Triggered with Input Voltage: 100ms
    Triggered with Control Switch: 40ms
  • Startup Time- 0.05 sec
  • Maintain Function Time- 0.01 sec
  • Operating Temperature- -28 C to 65 C (-18 F to 149 F)
  • Storage Temperature- -40 C to 85 C (-40 F to 185 F)
  • Output Contacts- 10A @ 240VAC / 7A @ 28VDC SPDT, 1/4hp @ 120VAC (N.O.)
  • Overall Dimensions- 2" H x 2" W x 1.14" D
  • Life- Mechanical: 10,000,000 Operations, Full Load: 100,000 Operations
  • Approvals- UL and CUL recognized

Macromatic THR Series Relay Installation Instructions

Macromatic Encapsulated Time Delay Relay THR-3816U