THT8 Series Time Delay Relay

Single-function time relay, on delay/off delay

Features
  • The single-function relay utilizes a potentiometer to set time for accurate performance
  • Delay function is optional
  • Time is divided into 10 scales within a wide range of 0.1s to 10 days
  • Relay status is indicated by built-in LED
  • 1-module, DIN-rail mounted
THT8 Series Time Delay Relay
THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay THT8 Series Time Delay Relay
Applications
  • Suitable for applications with specified function and time requirements.
  • Time switch for pump delay after switching off heaters or fans.
Technical parameters
Technical parameters THT8-A1/B1 THT8-A2/B2
Function delay on delay off
Supply terminals A1-A2
Voltage range AC/DC 12-240V (50-60Hz)
Load AC 0.7-3VA/DC 0.5-1.7W
Voltage range AC 230V (50-60Hz)
Power input AC max.12VA/1.3W AC max.12VA/1.9W
Supply voltage tolerance -15%; +10%
Supply indication green LED
Time ranges 0.1s-10days, on, off
Time setting potentiometer
Time deviation 5%-mechanical setting
Repeat accuracy 0.2%-set value stability
Temperature coefficient 0.05%℃, at=20℃ (0.05%℉, at=68℉)
Output 1*SPDT 2*SPDT
Current rating 16A/AC1
Switching voltage 250VAC/24VDC
Min. breaking capacity DC 500mW
Output indication red LED
Mechanical life 1*107
Electrical life (AC1) 1*106
Reset time max. 200ms
Operating temperature -20℃ to +55℃ (-4℉ to 13℉)
Storage temperature -35℃ to +75℃ (-22℉ to 158℉)
Mounting/DIN rail DIN rail EN/IEC60715
Protection degree IP40 for front panel I/I P20 terminals
Operating position any
Overvoltage category III
Pollution degree 2
Max. cable size (mm²) solid wire max. 1*2.5or 2*1.5/with sleeve max.1*2.5(AWG 12)
Dimensions 90*18*64 mm
Weight 1 X SPDT: W240-60g, A230-59g
2 X SPDT: W240-81g, A230-79g
Standards IEC/EN61812-1, IEC/EN61010-1
Functions diagram
THT8 Series Time Delay Relay
Wiring diagram
THT8 Series Time Delay Relay
Time range
THT8 Series Time Delay Relay
Dimensions (mm)
  • THT8 Series Time Delay Relay
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