Product Overview

Table Of Contents
6-10
October 29/12
BOSHART INDUSTRIES
Telephone: 1-519-595-4444 - Toll Free: 1-800-561-3164
Fax: 1-519-595-4380 - www.boshart.com
FLOATLESS LIQUID LEVEL CONTROL SYSTEMS
Provides automatic low level cut-off protection for submersible pumps and deep
well turbines. Liquid level submersible pump control system consists of a standard
enclosed type LH induction relay which operates from two types of electrodes - ELB
or ELS - suspended at desired levels. Properly installed, these components provide
reliable automatic low level cut-off protection for submersible pumps and deep well
turbines. Permits efficient operation at full capacity and eliminates danger of pumping
air or sand.
NOTE: ELB or ELS not included
Nema 1 General Purpose Metal Enclosure
Rated at 1 H.P. Single Phase, 115 or 230 volts, 25 AMP
TYPE LH RELAY - The LH Relay is a pump down control for sewage and
sump pump, condensate return systems.
TYPE RH RELAY - The RH Relay is a pump up control for supply pumps
on elevated tanks and towers.
TYPE DH RELAY - The DH Relay is a two way control system for pump up
or pump down.
PART MODEL # LINE SECONDARY DESCRIPTION/OPERATION LIST
NO. VOLTAGE COIL VOLT PRICE-A
LH-115 1500-C-L1-S8-NI-X 110/120V 360V AC Pump Down - Submersible POR
LH-230 1500-C-L2-S8-NI-X 208/240V 360V AC Pump Down - Submersible POR
RH-115 1500-D-L1-S8-NI-X 110/120V 360V AC Pump Up - Open System POR
RH-230 1500-D-L2-S8-NI-X 208/240V 360V AC Pump Up - Open System POR
DH-115 1500-G-L1-S8-NI-X 110/120V 36 0V AC Pump Up / Down - Submersible & Open POR
DH-230 1500-G-L2-S8-NI-X 208/240V 36 0V AC Pump Up / Down - Submersible & Open POR
ELECTRODES
The Electrode is made o f brass or stainless steel, 2” long. They are
assembled in molded plastic insulating shields, and suspended at
desired levels in the well by means of suspension wire. Wiring diagrams
and complete installation instructions are included with each control. 2 or 3
electrodes are required depending on applica tion. A system ground return circuit
is required from the indicated relay terminal to the liquid in order to complete the
secondary circuit of relay. Conduit should not be used. Instead, connection should
be made directly to uninsulated metal tank, or to metal pip e co nnected to tank
below normal low liquid level. I n wells, or insulated tanks, use an extra common
electrode extending slightly below the longest operating electrode.
PART NO. DESCRIPTION LIST PRICE-A
ELB Brass Electrode 75.00
ELS Stainless Steel Electrode 79.68
US Rev. 1.0