Littelfuse LLC14A5AX, LLC1 Series, Open Board Liquid Level Control Constant Level SPDT, 120VAC, Drain Operation, 5s Time Delay
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The LLC1 Series is a single probe conductive liquid level control designed for OEM equipment and commercial appliances. This unit may be ordered with fixed fill or fixed drain operation. A time delay (1-60s) prevents rapid cycling of the output relay. On adjustable units, the sensitivity adjustment allows accurate level sensing while ignoring foaming agents and floating debris. Isolated AC voltage is provided at the probe to prevent electrolysis. A trickle current of less than 1mA determines the presence or absence of liquid between the probe and common. The LLC1 Series printed circuit board is conformal coated to resist moisture and corrosion.
Pre-order 6-8 Weeks
Specifications
| Control | |
| Type | ON/OFF (single level) resistance sensor with built-in time delay to prevent rapid cycling |
| Sense Voltage |
Low voltage AC between probe & common. Isolated from input & output. |
| Sense Resistance | Fixed or adjustable to 250KΩ |
| Sense Resistance Tolerance | Adjustable - guaranteed range Factory fixed ±10% |
| Time Delay | |
| Range | Fixed 1 - 60s in 1s increments |
| Input | |
| Voltage | 120VAC |
| Tolerance | -20% - 10% |
| AC Line Frequency | 50/60 Hz |
| Output | |
| Type | Electromechanical relay |
| Form | Non-isolated, SPST & Isolated, SPDT contacts |
| Rating |
10A resistive @ 120/240VAC & 28VDC; 1/3 hp @ 120/240VAC |
| Life | Mechanical - 1 x 10⁷ ; Electrical - 1 x 10⁵ |
| Protection | |
| Surge | IEEE C62.41-1991 Level A |
| Isolation Voltage | ≥ 1500V RMS between input, output & probe |
| Mechanical | |
| Mounting | Surface mount to probe common with two #6 (M3.5 x 0.6) screws or 0.50 in. (12.7 mm) nylon standoffs with three #6 (M3.5 x 0.6) screws (use Terminal 5 for probe common) |
| Termination | 0.25 in. (6.35 mm) male quick connect terminals |
| Dimensions (Open Board) |
H 88.9 mm (3.5”) W 69.9 mm (2.75”) D 50.8 mm (2.0”) |
| Environmental | |
| Operating/Storage Temperature | -20° to 55°C/-40° to 80°C |
| Coating | Printed circuit board is conformal coated to resist moisture and corrosion |
| Weight | ≅ 8.7 oz (247 g) |