Low Water Cut-Off for Steam Boilers

Model #: 750P-MT-120; Description: Control with PA-800 Probe; Volts: 120/240;

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McDonnell & Miller
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  • For commercial and industrial secondary low water protection
  • Electronic circuitry with remote conductance probe
  • LED low water indicator light
  • No lockout with loss of power if probe is in water
  • L40-233 includes PA-800 probe

Model #: 750P-MT-120; Description: Control with PA-800 Probe; Volts: 120/240;


Maximum ambient temperature: 120°F |Voltage across probe to ground: 14VAC |Maximum remote sensor water temperature: L38-783 — 250°F; L38-784 — 406°F |Maximum remote sensor steam pressure: L38-783 — 15 PSI; L38-784 — 250 PSI

Product Specifications

DescriptionControl with PA-800 Probe
Model #750P-MT-120
Shipping Weight2.95
Shipping Width6.46
Shipping Length7.72
Shipping Height3.39

Compliance & Notes

Harmonize Code9026.10.5000

See catalog page 501 for additional notes and/or restrictions.

Warranty Information

WARRANTY - Johnstone Supply will administer and promptly process all warranties in accordance with the manufacturer's specific warranty policies and procedures.

WHOLESALE ONLY - Identification is required of purchasers. Possession of Johnstone's catalog does not constitute an offer to sell by Johnstone or the right to purchase from us.

RETURNS - All returns are subject to a restocking charge.

Brand Name:
McDonnell & Miller
See other: McDonnell & Miller - Low Water Cut-Offs
See all: McDonnell & Miller Products

Mfg. #: 176234