© 2016 Littelfuse Protection Relays & Controls

Protection Relays

Pump Controls and Liquid Level Controls

www.littelfuse.com/LLC5

Rev: 1-A-062116

Accessories

PHST-38QTN Electrode

Designed for a maximum steam pressure of 240

PSI; 400° F. UL353 Recognized.

LLP-24 Threaded Probe (24”)

Threaded stainless steel probe measuring 24”

(61 cm) long. For use with PHST-38QTN liquid

level control electrodes.

Specifications

Control

Type

Resistance sensing for high & low level

detection of conductive liquids

Sensing Voltage

Pulsed DC at probe terminals

Sensing Resistance

Factory fixed or adjustable to 100KΩ

Sensing Resistance

Tolerance

Adjustable: 1K ±500Ω at low end;

100KΩ ±25%, 0% at high end

Factory fixed: ±10% or 500Ω whichever

is greater

Response Time

Debounce time delay <1s

Input

Tolerance

24VAC

-15%, +20%

120 & 230VAC

-20%, +10%

AC Line Frequency

50/60 Hz

Output

Type

Electromechanical relay

Form

Isolated, SPDT

Rating

5A resistive @ 240VAC, 1/10 hp @ 240VAC

Protection

Isolation Voltage

≥ 1500V RMS between input, output, & probe

Mechanical

Mounting

Plug-in socket

Dimensions

H 60.7 mm (2.39”); W 45.2 mm (1.78”);

D 76.5 mm (3.01”)

Termination

Octal 8-pin plug-in

Environmental

Operating/Storage

Temperature

-20° to 60°C / -40° to 80°C

Weight

6 oz (170 g) approx.

LLC5 SERIES