McDonnell & Miller 143100 | Low Water Cut-Off with Manual Reset
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McDonnell & Miller model number 63M is a float-operated low water cut-off for steam or hot water boilers. This control features a manual reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 50 psi and has a tapped 1" FIP connection for equalizing pipes. Blow down valve required.
Specifications
| Brand | McDonnell & Miller |
|---|---|
| MPN | 143100 |
| Model | 63-M |
| Application | Hot Water Boilers, Steam Boilers |
| Connection size | 1" |
| Control connection | NPT |
| Installation method | 1" Equalizing Piping |
| Voltage | 120V, 240V |
| Control reset | Manual |
| Control switch | No. 2-M |
| Max boiler pressure | 50 psi |
| UPC | 751875002162 |
| Weight (lb) | 12.81 |
| Dimensions (L × W × H) | 7.95" x 14.1" x 6.2" |
- SKU MM63M
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.