Low Water Cut-Off for Hot Water Boilers Electric

Model #: RB-122; Volts: 120VAC;

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McDonnell & Miller
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  • 120V
  • Maximum ambient temperature: 120°F
  • Maximum water temperature: 250°F
  • Maximum water pressure: 160 PSI
  • Probe sensitivity: 6,000 ohms
  • For residential and, where codes allow, commercial applications
  • Electro-mechanical operation
  • Automatic reset

Model #: RB-122; Volts: 120VAC;


Maximum ambient temperature: 120°F |Maximum water temperature: 250°F |Maximum water pressure: 160 PSI |Voltage across probe to ground: 125VAC |Power consumption: 15VA |Probe sensitivity: 6,000 ohms

Product Specifications

Model #RB-122
Shipping Weight1.75
Shipping Width4.10
Shipping Length8.50
Shipping Height3.60

Compliance & Notes

Harmonize Code9026.10.5000

See catalog page 498 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. #: 144676