Watlow HG Series Mercury Displacement Relay User Manual
HG Series
Mercury Displacement Relay
WMDR-XUMN-1097
June 1997
Supersedes: WMDR-XUMN Rev A00
Made in the U.S.A.
Printed on Recycled Paper 10% Postconsumer Waste
Power Controls
Watlow Controls, 1241 Bundy Blvd., P.O. Box 5580, Winona, MN, USA 55987-5580, Phone: (507) 454-5300, Fax: (507) 452-4507
Registered Company
Winona, Minnesota USA
ISO 9001
User’s Manual
3.25
(83)
2.16
(55)
.25
Typ.
(6)
Up
3.14
(80)
Mounting
Slot
For #8 To
#10 Screw
3.75
(95)
#10-32
Binding
Head
Screw
Up To #10
A.W.G.
3.43
(87)
Dimensions
1.19
(30)
"A"
1.63
(41)
.20 (5)
Dia. Mtg.
Hole
2.25
(57)
1.94
(49)
Pressure
Connector
2.00
(51)
1 Pole
.21 (5)
Dia. Mtg.
Hole For
#10 Screw
.21 (5)
Wide Slot
For #10
Screw
Hole
3.13
(79)
2.65
(67)
1.94
(49)
40°
Typ.
4.00
(102)
2.62
(67)
"A"
Pressure
Connector
2 Pole
3.13
(79)
4.00
(102)
2.65
(67)
.21
(5)
Dia. Mtg.
Hole For
#10
Screw
.21 (5)
Wide Slot
For #10
Screw
Hole
40°
TYP.
3.75
(95)
"A"
Pressure
Connector
1.94
(49)
3 Pole
ÓÓ
WARNING: Mercury displacement relay must be
mounted vertically. Failure to do this will prevent the
contacts from turning off, which will supply full
voltage to the load. Failure to follow this guideline
could result in damage to equipment, and personal
injury or death.
ÓÓ
WARNING: Mercury displacement relay contacts
will switch ac current only. Not for use with dc
current. Failure to follow this guideline could result
in damage to equipment, and personal injury or
death.
2 Watlow Series HG Mercury Displacement Relay User’s Manual
.21 (5)
Dia.
Mounting
Hole
1.19
(30)
2.25
(57)
#8-32
Binding
Head
Screw
#10-#14
A.W.G.
1.63
(41)
3.58
(91)
2.00
(51)
Dia.
1.94
(49)
.21 (5)
Dia.
Mounting
Hole
3.13
(79)
4.00
(102)
#8-32 Binding
Head Screw
#10-#14 A.W.G.
2.62
(67)
2.65
(67)
1.94
(49)
.21 (5)
Wide Slot
For #10
Screw
Hole
40°
Typ.
4.00
(102)
2 Pole
.21 (5)
Dia.
Mounting
Hole
3.13
(79)
3.75
(95)
4.00
(102)
#8-32
Binding
Head Screw
#10-#14
A.W.G
4.00
(102)
1.94
(49)
.21 (5)
Wide
Slot
For#10
Screw
Hole
40°
Typ.
2.65
(67)
3 Pole
30 Amp Models
HG30-XKDX-0000
Definite Purpose Relay Foot Print
HG30-XAAX-0000
1 Pole
NOTE:
Watlow recommends that ring terminal lugs be used
with stranded wire
on all binding head
screw terminals.
All 35, 50, and 60 Amp Models
“A” Pressure
Dimensions Connectors
HG35-XLDX-0000 4.62 (117) #4-14 A.W.G.
HG50-XMDX-0000 4.62 (117) #4-14 A.W.G.
HG60-XPDX-0000 5.12 (130) #1 - 8 A.W.G.
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