Description
The McDonnell & Miller 153887 PS-851-U-120 is an electronic, probe-type low water cut-off for hot water boilers, supplied in the extended-barrel-probe configuration with automatic reset.
- Power supply: 120 VAC
- Probe configuration: extended-barrel
- Reset: automatic
- Probe sensitivity: 7,000 ohms
- Test button with power and low-water indicators
- Maximum water pressure: 160 psi
- Maximum water temperature: 250 °F