McDonnell & Miller 143600 | Low Water Cut-Off with Auto Reset
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The McDonnell & Miller 143600 Model 64 is a mechanical low water cut-off featuring 1" NPT female threaded connections and a No. 11 automatic resetting switch control for dependable operation of the low water cut-off and an alarm. The maximum boiler pressure is 50 psi. The switch features an automatic reset and operates on either a 24-volt, 120-volt, or 240-volt power supply. The Series 64 low-water cut-offs are designed for residential, commercial, and industrial steam or hot water boiler applications of any steam capacity.
Specifications
| Brand | McDonnell & Miller |
|---|---|
| MPN | 143600 |
| Model | 64 |
| M&M series | Series 64 |
| Application | Hot Water Boilers, Steam Boilers |
| Connection size | 1" |
| Control connection | NPT |
| Installation method | 1" Equalizing Piping |
| Voltage | 24V, 120V, 240V |
| Control reset | Automatic |
| Control switch | No. 11 |
| Max boiler pressure | 50 psi |
| UPC | 751875002230 |
| Replaces | 144000 |
| Alias | No. 64 |
| Weight (lb) | 10.96 |
| Dimensions (L × W × H) | 9.65" x 6.75" x 11.1" |
- SKU MM64
Most in-stock items ship within 1–3 business days. Once shipped, you will receive a confirmation email with tracking. Special-order items or items shipped from partner warehouses may require additional processing time. Orders ship via UPS or USPS depending on the item and destination. If you need a specific carrier, please contact us before placing your order.