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MDI mercury contactors/relays are durable and float switches and liquid level controls for water and sewage Liquid Level Control Floats
Contactors and Solid State Relays,
Tilt, Tip-over and Proximity Switches
Motion and Shock Sensors.
MDI Mercury Displacement Industries Relays, Contactors, Liquid Level Control Floats, Tilt and Tipover switches
Relay, Vertical, Liquid Level Control Floats, Tilt and Tipover switches
High/Low Water Alarm

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* SP-3000 Buy Now! *
BBLA Alarm with Mechanical Float Switch MDI P/N: XF2OY1500

* SP-3100 Buy Now! *
BBLA Alarm with Mercury Float Switch MDI P/N: AS2OY1500

The BBLA alarm system is designed to monitor liquid levels in sump basins, holding tanks, lift stations tanks and many other non-potable water and wastewater applications.

The BBLA is design to sound an audible horn and illuminate a red light to notify of an alarm situation. There is a green line voltage power indicator light to show that the unit is functioning, as well as a silence switch to turn horn off while fixing the alarm (the red alarm light will remain on until the alarm conditions are remedied).

Indoor High/Low Water Alarm w/ Battery Backup
Indoor High/Low Water Alarm w/ Battery Backup
Specifications
Voltage:
Primary: 120 VAC, 60 Hz
Secondary: 12 VDC 60 Hz

Enclosure
NEMA 1 Thermoplastic enclosure with external mounting feet
6" X 3.75" X 2.50"

Alarm horn
85 Decibels at 10 feet

Power Cord
6 feet 120 VAC (NEMA 5-15P)

Battery Backup:
9V Battery

Auxiliary contacts:
120 VAC, 5 AMP MAX. 60 Hz

Features:
Red "Alarm On" LED, Green "Power On" LED
Alarm test and horn silence button with auto reset

Low voltage screw terminals
Class 2 Output, 12 VDC, connect ONLY the float switch -or- alarm device leads to the low voltage terminals.
DO NOT APPLY ELECTRICAL POWER

Float Switch Options
  • SP-3000 - Comes with a mechanical float switch with the following:
  • Cable: 15 foot length, 18 Ga. 2 conductor, SJOW chlorinated polyethylene jacket
  • Float: 2" Dia X 3.40" long ABS outer shell
  • Switch: 15 Deg operating angle, hermetically sealed mechanical ball switch
-or-
  • SP-3100 - Comes with a mercury float switch with the following:
  • Cable: 15 foot length, 18 Ga. 2 conductor, SJOW chlorinated polyethylene jacket
  • Float: 2" Dia X 3" long ABS outer shell
  • Switch: 5 Deg angle, hermetically sealed steel mercury switch

  • Features
  • Red "Alarm On" LED, Green "Power On" LED
  • Alarm test and horn silence button with auto reset
  • NEMA 1 Thermoplastic enclosure with external mounting feet , for indoor usage.
  • Complete alarm includes a (Small Mercury or Mechanical) float switch with mounting strap and 15 foot cord.
  • Alarm operates on 12 Volts, reducing the possibility of accidental electric shock.
  • Auxiliary contacts with common, normally open and normally closed terminals are available behind a panel, on the lower right side, held in place by two #1 Phillips head screws. The barrier terminal screws are Phillips/Standard slot combo head type.

For Liquid Level Control Floats, Contactors and Solid State Relays, Tilt, and Tipover contact MDI TODAY!

* P. O. Box 710 * 25028 U.S. 12 East * Edwardsburg, Michigan * 49112 *
* PH. (269) 663-8574 * FX. (269) 663-2924 *
* Toll Free US and Canada (800) 634-4077 *