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(CHANGE-OVER SWITCH 2P/5kVA, VICTRON) TIMER RELAY, 250V/8A

https://unicat.msf.org/cat/product/72379
NST PELECOMMTS208

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OC subscriptions: included in supply or field order tools (e.g. UniField)
SC subscriptions: included in supply or field tools
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)
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(CHANGE-OVER SWITCH 2P/5kVA, VICTRON) TIMER RELAY, 250V/8A

Form

Multifunction electronic time relay designed for control circuits requiring adjustable ON-delay and OFF-delay timing functions
Contact configuration: 1 changeover contact (SPDT, 1 CO)

  • control supply voltage: 24–240 VAC / VDC
  • supply frequency (AC): 48–63 Hz
  • rated consumption: 4 VA (1.5 W)
  • number of time ranges: 7
  • time setting range: 50 ms to 100 h
  • time adjustment: rotary selector and scale adjustment
  • indication:
    • green LED ON: supply voltage present
    • green LED flashing: timing in progress
    • yellow LED ON/OFF: relay output status
  • output rated voltage: 250 VAC
  • switching capacity: 2000 VA (8 A / 250 VAC)
  • mechanical lifetime: 20 × 10⁶ operations
  • electrical lifetime: 2 × 10⁵ operations at 1000 VA resistive load
  • IP protection: IP40 (housing), IP20 (terminals)
  • operating temperature: −25 °C to +55 °C
  • storage temperature: −25 °C to +70 °C
  • overvoltage category: III
  • rated surge voltage: 4 kV
  • duty cycle: 100 %
  • module width: 17.5 mm

Per piece.

Fit

  • supply connection: terminals A1 (+) and A2 (−) for AC or DC supply
  • control input: terminal B1, not potential-free
  • control wiring: switch connected between A1 and B1
  • control input characteristics:
    • automatic trigger level adaptation to supply voltage
    • minimum control pulse: 50 ms (DC), 100 ms (AC)
    • maximum control line length: 10 m
  • output interface: 1 potential-free changeover contact
  • output terminals: 15 (common), 16 (NC), 18 (NO)
  • rated output current: 8 A
  • recommended fuse protection: 8 A fast acting
  • mounting interface: 35 mm DIN rail (EN 50022)
  • mounting position: any
  • terminal capacity:
    • 0.5–2.5 mm² (single conductor)
    • up to 4 mm² (solid conductor)
    • 2 × 0.5–1.5 mm² (multi-conductor)
  • terminal tightening torque: max. 1 Nm
Image

Function

Primary function:

  • generation of adjustable ON-delay and OFF-delay timing for control circuits

Functional behavior and limitations:

  • ON-delay (E):

    • timing starts when supply voltage is applied
    • relay switches ON after the set time has elapsed
    • interruption of supply resets the timing cycle

  • OFF-delay (R):

    • supply voltage must be permanently applied
    • timing starts when the control contact opens
    • relay switches OFF after the set time has elapsed
    • re-closing the control contact resets the timing
  • designed for control and signaling circuits only
  • not intended for direct switching of power loads

Typical applications:

  • control panels and automation systems
  • delayed start or stop of motors and actuators
  • lighting and ventilation timing
  • alarm and signaling delay functions