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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | SSAC / Littelfuse |
| Manufacturer Product Number | LLC52AA |
| Description | Liquid Level Relay; Pump Down; 24V AC; 1K-100K; 8-Pin Octal; Socketable |
| Datasheet | Download Datasheet |
The Littelfuse SSAC LLC52AA is a dual-probe conductive liquid level control for 24 V AC in an octal plug-in package. It runs the pump down to drain the tank between a high and a low probe.
A dual-probe level control in an octal plug-in package: it runs the pump between a high and a low probe, against the probe common (a conductive tank, or an extra probe in a non-conductive one). Isolated pulsed DC on the probes prevents electrolytic plating; less than 1 mA senses the liquid.
Sensitivity: adjustable from 1K to 100K ohms, to ignore foam and floating debris. Probe voltage: pulsed DC, isolated. Output: 5 A resistive at 240 V AC; 1/10 hp at 240 V AC; isolated SPDT. Indicator: LED. Supply tolerance: -15% / +20% of nominal; 50/60 Hz.
It plugs into an octal 8-pin socket. It operates from -20 to +60 °C and stores from -40 to +80 °C.
| Category | |
| Manufacturer | SSAC / Littelfuse |
| Model | LLC5 |
| Control Function | Pump Down (Drain) |
| Number of Probes | 2 |
| Sensitivity Range | 1K...100K ohms |
| Probe Voltage | Pulsed DC, isolated |
| Input Voltage | 24V AC |
| Input Operating Range | -15% / +20% of nominal; 50/60 Hz |
| Pickup Delay | Under 1 s (debounce) |
| Status Indicator | LED |
| Output Rating | 5 A resistive at 240 V AC; 1/10 hp at 240 V AC; isolated SPDT |
| Mounting Type | Socketable |
| Termination Style | Octal 8-pin plug-in |
| Operating Temperature (Storage) | -20...+60 °C (-40...+80 °C) |