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Time Relay MTR17-TTT-U240-208

  • TT function
  • Two independently controlled times T1 and T2
  • 7 time rangers 1s … 100h
  • Wide range power supply of 12…240V AC/DC
  • 2NO/NC 8A contact arrangement
  • Low power consumption – <2.5 VA or <2 W – high energy efficiency
  • Installation design DIN 35mm
  • 17.5mm width

Time relay MTR17-TTT-U240-208 equipped with universal power supply can be connected to any AC/DC voltage source in range of 12…240V. Performs TT function with T1 and T2 times independently adjustable in range of 100ms to 100h. Microcontroller based circuit ensures high stability of time counter.
Designed to use in industrial automation systems.

Time functions available in the MTR17-TTT-U240-208 relay:

ON for the set intervals T1 and T2 with the control contact S (TT) – the input of the time relay is supplied with voltage U continuously. Closing of the control contact S switches the output relay R for the interval T1, and after the interval has lapsed, the relay R is switched off. Opening of the control contact S switches on the output relay R for the interval T2. If the control contact S is open when the interval T1 lapses, the output relay R will remain on for the interval T2. If the control contact S is closed when the interval T2 lapses, the output relay R will remain on for the interval T1.

Connections

Front Panel

Dimensions

Version MTR17-TTT-U240-116
Output Circuit
Contact arrangement 2NO/NC
Rated switching current In AC1 – 8A/250V AC
DC1 – 8A/24V DC
Maximum continuous current 12A
Switching load range AC1 2 000VA
Rated/maximum contact voltage 250/400V AC
Contact resistance ≤ 100mΩ
Maximum switching frequency
600 cycles/h
Input Circuit
Supply voltage Un 12…240V AC/DC
Supply voltage range
0,8…1,1Un (9,6…264V)
Rated consumption AC: ≤ 2,5VA
DC: ≤ 2W
Rated frequency 47…63Hz
Minimum trigger level S-A2 (sensitivity) 0,7Un
Minimum control S pulse length AC: ≥ 90ms
DC: ≥ 45ms
S loadable yes
Rated surge voltage 1 000V
Insulation
Insulation rated voltage 250V AC
Rated surge voltage 4 000V (1,2/50μs)
Overvoltage category III
Pollution degree
2
Flammability PCB: V0, housing: HB
Dielectric strength input-output 4 000V AC
Dielectric strength open contact 1 000V AC
Dielectric strength between contacts 2 000V AC
General Data
Electrical life AC1 at 50% In ≥ 150 000
Mechanical life ≥ 30 000 000
Dimensions (L x W x H) 90 x 17,5 x 66mm
Weight 57g
Ambient temperature -20°C …. +55°C
Relative humidity 85%
IP rating IP20
Shock resistance 15g
Vibration resistance 0,35mm (10…55Hz)
Terminals max 2,5 mm²
Installation DIN rail 35mm
Time Module
Functions
TT
Time ranges
1s, 10s, 1m, 10m, 1h, 10h, 100h
Timing adjustment smooth 0,1…1,0 x range
Setting accuracy
5%
Repeatability 0,5%
Recovery time ≤ 100ms

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MTR17-TTT-U240-208 Datasheet
Time Relay selection table
Declaration of conformity CE

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