LL Relay, Type A - Simplex Seal and Temp Stat Failure Relay

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Pin 6 is NO input & pin 8 is NC input

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Input Supply Voltage

12 or 24 VAC, 20%
120 or 240 VAC, 20%


50/60 Hz

Power Consumption

2 VA

Sensitivity Range

5K to 100KO

Pick-Up & Drop-Out Delays

5 Sec. fixed

Max. Probe Voltage (AC)

16 V

Output Rating @ 25?C

5 A @ 250 VAC
10 A @ 120 VAC
30 VDC 300W (D.C.)
1600 VA (A.C.) Max. switching power (resistive)
100,000 Full Load Electrical Cycles
20,000,000 Mechanical Cycles


1 Relay Status LED
2 Input Status LEDs: Closed Connection On




8 Pin (Octal)


Dust Cover


9 oz

Ambient Operating Temperature

0 to 40 ?C

Ambient Storage Temperature

-40 to 85 ?C



UL E71902 Standard-->

  • Duplex pumping
  • Lift stations
  • Pumps or Compressors
  • Level sensing (Float or Probe)
  • Combustible or Hazardous locations
  • Simplex pumping
  • Liquid Level Sensing The LL F/D/A/O/C senses conductive non hazardous fluids with low voltage contact probes. Internal logic circuitry controls the relay latching for tank Fill or Drain operations. Three diagnostic LEDs indicate the input and output relay states. The sensitivity is adjustable to control effects of liquid wickers from the level probes. The Alarm version operates as a Dual High and Low Level Alarm or it may be operated as either a High or Low Alarm. A delay timer reduces wave effects.

    R-K Model



    A - High & Low Dual Alarm, pin 6 is NO input & pin 8 is NC input
    C - Dual Alarm, 6 & 8 are NC inputs
    D - Tank Drain Applications
    F - Tank Fill Applications
    O - Dual Alarm, 6 & 8 are NO inputs

    Supply Voltage

    12A - 11 to 16 VAC
    24A - 20 to 29 VAC
    120A - 100 to 125 VAC
    240A - 200 to 240 VAC

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