McDonnell Miller Series 63

For residential, commercial, and industrial applications.
Heavy Duty
Includes No. 2 switch
Optional manual reset available.
Maximum boiler pressure 50 psi.

#63 Low-Water Cut off, Complete $420.00
#63-M w/ Manual Reset, Complete $420.00

Replacement Heads
Model Number	Part Number	Description	Weight lbs.	Price
63-HD 63-M-HD	142600 143200	Head Mechanism w/ No. 2 Switch 63-HD w/ manual reset	7 7	$405.00 $405.00
Ordering Information
Model Number	Part Number	Description	Weight lbs.	Price
63 63-B 63-M 63-E 63-EM 63-EP 63-M E-28	142400 142700 143100 142500 142800 142850 143100 142900	Low water Cut-off 63 w/ Float Block 63 w/ Float Block & manual reset 63 w/ BSPT threads 63-E w/ manual reset 63-E w/ 1" NPT plug 63 w/ manual reset 63 w/ DPDT switch	13.5 15 15 14 14 14 14 14.3	$435.00 $450.00 $435.00 $Call $Call $Call $435.00 $Call
Replacement Parts (View parts cut sheet)
Model Number	Part Number	Description	Weight lbs.	Price
CO-11	302500	Siphon Gasket (6 Pack)	1	$32.40
CO-12	302600	Head Gasket (6 Pack)	1	$38.40
2	110000	#2 Low water cut-off switch	1	$129.00
2-M	110100	#2 w/ Manual Reset	1	$129.00

Electrical Ratings
Motor Switch Rating(Amperes) 120 VDC .5 Amp
Voltage	Full Load	Locked Rotor			Pilot duty
120 VAC 240 VAC	10.2 5.1	61.2 30.6			125 VA at 120 or 240 VAC 60Hz
Dimensions
A	B	C	D	E	F	G	H	I
1	6 1/2	2 9/16	1	5 5/32	9 3/8	3 1/8	10 1/2	5 1/8