35 & 60 Series - Mercury Displacement Relay
Up to 3PST, 35 or 60 Amp
E52197
The 35 & 60 series products are mercury displacement relays. Sealed tubes containing liquid
mercury assure contact surfaces are freshly replenished with every contact movement. Contact
resistance is among the lowest available for any electromechanical relay. The M35 series offers
superior long life performance. Products are available with 1, 2, or 3 poles rated 35 amps. Contacts
can be normally open or normally closed.
Optional DIN rail adaptors – 1 pole = 16-MDRDIN-1, 2 or 3 pole = 16-MDRDIN-2/3
GENERAL SPECIFICATIONS (@ 25° C)
Contacts:
Contact Configuration
Contact Material
Contact Rating
120 / 240VAC Resistive
28VDC Resistive
Motor 120VAC 1 Phase
Motor 240VAC 1 Phase
Contact Resistance, Initial
Coil:
Coils Available
Nominal Coil Power
Input Voltage Tolerance - AC
Input Voltage Tolerance - DC
Drop-out voltge
Duty
Timing:
Operate Time (max)
Release Time (max)
Dielectric Strength:
Across Open Contacts
Between Mutally Insulated Points
Insulation Resistance
Temperature:
Operating
Storage
Life Expectancy:
Electrical (full load operations)
Mechanical (no load operations)
Miscellaneous:
Mounting Position
Enclosure
Weight
35
Up to 3PST
Liquid Mercury
35 Amp
35 Amp
5Hp
5Hp
50 milliohms max @ 6VDC
AC and DC
7 to 28VA
3 to 9W
85% to 110% of nominal
80% to 110% of nominal
10% of nominal
Continuous
50ms
80ms
2650 VRMS
2650 VRMS
1000 megohms @ 500VAC
-34 to 74°C (-30 to 165°F)
-40 to 105°C (-40 to 221°F)
250,000
5,000,000
Vertical within 10 degrees
Hermetically Sealed
Varies
60
Up to 3PST
Liquid Mercury
60 Amp
60 Amp
5Hp
10Hp
50 milliohms max @ 6VDC
AC and DC
7 to 28VA 3 to 9W
85% to 110% of nominal
80% to 110% of nominal
10% of nominal
Continuous
50ms
80ms
2650 VRMS
2650 VRMS
1000 megohms @ 500VAC
-34 to 74°C (-30 to 165°F)
-40 to 105°C (-40 to 221°F)
250,000
5,000,000
Vertical within 10 degrees
Hermetically Sealed
Varies
*Material safety data sheet available on request
*Dispose of properly
2/7
www.struthers-dunn.com
(843) 664-3303
Power Relays
30 - 300 Amp
Section 2
35 Series
1 Pole
2 Pole
3 Pole
60 Series
1 Pole
2 Pole
3 Pole
www.struthers-dunn.com
(843) 664-3303
2/8
35 & 60 Series - Mercury Displacement Relay
Up to 3PST, 35 or 60 Amp
Ordering Code
M35
A
120VAC
Series
M35 Series = 35 Amp
M60 Series = 60 Amp
Contact Arrangement
A (1 N.O. tube)
AA (2 N.O. tube)
A AA (3 N.O. tube)
B (1 N.C. tube)
BB (2 N.C. tube)
BBB (3 N.C. tube)
Coil Voltage
AC:12, 24, 120, 240 (Add VAC)
DC: 12, 24, 115-125, 250 (Add VDC)
Contact Ratings for 35 Series
Voltage
Phase
1Ø
120VAC
240VAC
480VAC
600VAC
24VDC
48VDC
125VDC
250VDC
1Ø
1Ø
1Ø
1Ø
DC
DC
DC
DC
3Ø
3Ø
3Ø
3Ø
3.0*
5.0*
5.0*
5.0 *
0.5
0.5
0.5
0.5
HP
3Ø
5.0*
7.5*
10.0*
10.0*
Motor
Amp
1Ø
3Ø
34.0
28.0
14.0
11.2
27.0
13.5
5.2
2.6
30.0
19.0
14.0
11.0
Resistive
Amp
35*
35*
35*
25**
35*
35*
16*
12*
Tungsten
35*
17
9
7
35*
35*
16*
12*
Contact Ratings for 60 Series
Voltage
Phase
1Ø
120VAC
240VAC
480VAC
600VAC
24VDC
48VDC
125VDC
250VDC
1Ø
1Ø
1Ø
1Ø
DC
DC
DC
DC
3Ø
3Ø
3Ø
3Ø
3.0*
5.0*
5.0*
5.0 *
0.75
0.75
0.75
0.75
HP
3Ø
5.0*
7.5*
10.0*
10.0*
Motor
Amp
1Ø
3Ø
34.0
28.0
21.0
16.0
39.0
19.5
7.4
3.7
30.0
28.0
21.0
17.0
Resistive
Amp
60*
60*
60*
50**
60*
60*
40*
20*
Tungsten
Amp
Amp
“A” (N.O.)
“B” (N.C.)
60*
30.0
15.0
12.0
50.0*
50.0*
40.0*
20.0*
45*
22.5
11.2
9.0
50.0*
50.0*
40.0*
20.0*
2/9
www.struthers-dunn.com
(843) 664-3303
Power Relays
30 - 300 Amp
Section 2
3.51
(89.3)
1.94
(49.3)
Dimensions shown in inches & (millimeters)
Outline Dimensions
1 Pole
2 Pole
2.38
(60.5)
4.95
(125.7)
2.12
(53.9)
Ø .20
(5.2)
5.05
(128.3)
5.05
(128.3)
2.34
(59.3)
4.95
(59.3)
1.18
(30.1)
1.94
(49.3)
2.30
(58.4)
1.81
(46.0)
2.54
(64.5)
3 Pole
3.75
(95.3)
3.13
(79.6)
3 Pole Top View
30°
30°
4.98
(126.4)
1.93
(49.1)
4.98
(126.4)
Ø .20
(5.2) 6 holes
3.39
(86.1)
UP
*Normally closed tubes (B style)
sit lower in coil assemblies
Recommended
Mounting Position ± 10°
www.struthers-dunn.com
(843) 664-3303
2/10
