McDonnell Miller Series 63 Low Water Cut-Off – Mechanical for Steam Boiler and Hot Water Boilers
Auto reset mechanical low water cut off for hot water and steam boilers with 50 PSI max boiler pressure head mechanism only (Part Number 142600)
$915.00
Description
Series 63 Low Water Cut Off
Features and Benefits
- For residential, commercial and industrial applications
- Heavy duty
- Includes No. 2 switch
- Optional manual reset available
- Maximum boiler pressure 5 psi (204kg/cm2)
- Use with TC-4 on hot water systems
Electrical Ratings:
| Voltage | Motor Switch Rating (Amperes) 120 VDC .5 Amp | Pilot Duty | |
|---|---|---|---|
| Full Load | Locked Rotor | ||
| 120 VAC | 10.2 | 61.2 | 120 VA at 120 OR 240 VAC 60 HZ |
| 240 VAC | 5.1 | 30.6 | 125 VA AT 120 OR 240 VAC 60 HZ |
Dimensions, in. (mm)
| A (NPT) | B | C | D (NPT) | E | F | G | H | J |
|---|---|---|---|---|---|---|---|---|
| 1 | 6-1/2 (165) | 2-9/16 (65) | 1 | 5-5/32 (131) | 9-3/8 (238) | 3-1/8 (79) | 10-1/2 (267) | 5-1/8 (130) |
Ordering Information:
| Model Number | Part Number | Description |
|---|---|---|
| 63 | 142400 | Low Water Cut-Off |
| 63-B | 142700 | 63 w/float block |
| 63-BM | 143300 | 63 w/float block & Manual Reset |
| 63-M | 143100 | 63 w/manual reset |
Dimensions
Click on the following to view dimensions:
MM 825H McDonnell & Miller General Catalog
Technical Documentation:
MM 825H McDonnell & Miller General Catalog
Installation/Operation Manuals:
MM 206H Series 63 Low Water Cut-Off
MM 715D Series 63 64/764 and 65/165 Replacement Floats
Parts Lists:
Additional information
| Weight | 23.5 lbs |
|---|---|
| Title |




