McDonnell Miller Series 150 Low Water Cut-off

For residential, commercial, and industrial applications. For boilers of any steam capacity. Monel bellows provides corrosion resistance.

Mercury switches for high temperature service.
Maximum pressure 150 psi.

Replacement Heads
Model Number	Part Number	Description	Weight lbs.	Price
150S-M-HD	173203	150-HD w/ manual reset	12	$580.00
150S-HD	173003	Head Mechanism with Snap Switch & Gasket	11	$580.00
150-E-HD	171640	High Pressure Level Control	12	$Call
150-E-M-HD	171650	Replace with 150S-M-HD if pressure is over 50 PSI / 150S-M-MD-HD if under 50 PSI	12	$Call
Ordering Information
Model Number	Part Number	Description	Weight lbs.	Price
150S	171702	Combination low water cut-off/pump controller	24.7	$640.00
150-B	171900	Replace with 150S p/n 171702 / 150 w/ float block	24.7	$Call
150-B-M	172100	150-B w/ manual reset	24.7	$Call
150-J	172600	Replace with 150-S-J / 150 w/ BSPT	24.7	$Call
150-SMD	171802	Replace with 150-SMD / 150 w/ maximum differential	24.7	$640.00
150S-M	172702	150 w/ manual reset	24.7	$640.00
150-M-MD	172800	150-M w/ maximum differential	24.7	$Call
150-J-M	172900	150-M w/ BSPT threads	24.7	$Call
158	178400	150 w/ 2 SPDT switches	26.3	$Call
158-M	178500	158 w/ manual reset	27.3	$Call
Replacement Parts (View parts cut sheet)
Model Number	Part Number	Description	Weight lbs.	Price
SA150-125	348300	No Longer Made / Replace the head that has the snap type switch	0.3	$Call
SA150-124	348100	Obsolete - upgrade to the snap switch series, either a replacement head or complete unit	0.14	$Call
SA150M-124	348200	Manual 3 Wire Switch	0.3	$Call
SA150-106R	347900	Bellows Assembly	0.4	$170.00
SA150-11	347600	Float and Rod	1	$180.00
150-14H	325500	Head gasket (for raised face head flange, 8 holes), 6 pack	0.5	$31.95
EA-157-S	354106	Short electrode for 157-RBP	0.5	$145.00
EA-157-L	354107	Long electrode for 157-RBP	0.5	$145.00
750B-ENC	176345	Probe level control	2.7	$Call
SA150M-436	348900	Cover for mercury switch, manual reset only	0.5	$Call
SA150-436	326950	Cover for all other models	0.5	$55.00

Electrical Ratings
Voltage	Cut-off and Pump Curcuit Rating		Pilot duty
	Full Load	Locked Rotor
120 VAC	7.4	44.4	125 VA at 120 or 240 VAC
240 VAC	3.7	22.2
Alarm Circuit Rating
Voltage				Amps
120 VAC				1
240 VAC				1/2
Dimensions
A	B	C	D	E	F	G	H	J
5 7/8	12 7/16	6	13 1/4	3 5/16	9 15/16	4 1/8	3 7/16	1

McDonnell Miller Series 150 Drawings

Contact Us Directly:

Toll Free: 1-800-780-3776
Int'l Phone: 770-957-9599
Int'l Fax: 770-957-9563
E-Mail: Email Your Request

Mailing Address: Power Plus International
143 McDonough Parkway
McDonough, GA 30253