Mercoid Series DA - DS Pressure
Switches - Operating Ranges & Deadbands
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| SELECT YOUR OPERATING
RANGE/BOURDON TUBE MATERIAL |
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| WARNING: A failure
resulting in injury or damage may be caused by over-pressures,
excessive vibration or pressure pulsation, excessive temperature,
corrosion of pressure containing parts and movement assembly,
electrical overload or other misuse. Refer to installation
instructions or consult our engineers. Welded Bourdon
Tube - in case of fire prevents leakage of flammable hazardous
or toxic gases or liquids. Repeatability ± 1 % of full
scale. |
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SWITCH ACTIONS
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| For Snap-Action
Contacts
High DC Circuits |
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Circuit
Suffix No.
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Switch
Action
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-153
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SPDT, one circuit OPENS
as other CLOSES
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-804
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Two SPDT, operate simultaneously
in one
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direction upon increase
or decrease
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| For Mercury Switch
Contacts |
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Circuit
Suffix No.
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Switch Action
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-2
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SPST, OPENS
on increase
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-3
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SPST, CLOSES
on increase
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-153
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SPDT, One
OPENS as other CLOSES
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-804
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(2) SPDT,
Two OPEN as Two CLOSE
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ELECTRICAL RATINGS
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| For Mercury Switch
Contacts |
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Code
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Circuit Suffix
No.
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AC
Capacity
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DC
Resistive
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Horsepower
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AC
DC
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A
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-2, -3
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3/4
1/3
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B
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-153, -804
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1 /8
NA
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H
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-2,-3
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1/8
1/10
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I
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-2, -3
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NA NA |
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(1)153
circuit available 1A 440V AC on special order
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| (2) Also rated 0.9 Amps
at 24 V AC |
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| For Snap-Action
Contacts |
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Code
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Circuit
Suffix No.
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AC Capacity
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DC Resistive
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Horsepower
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120V
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240V
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440V
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120V
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240
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AC
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DC
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D
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-153
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15A
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15A
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15@ 480
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1/2A
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1/4A
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1/8
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N/A
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E
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-153
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15A
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15A
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NA
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Note 4
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Note 4
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Note 3
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N/A
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G
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-804
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5A
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5A
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NA
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Note 5
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Note 5
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N/A
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N/A
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| Note (3) 1/4 HP at 120V
AC, 1/2 HP at 240V AC |
| Note (4) DC rated controls
(up to 10 Amps) |
| Note (5) 5A, 30V DC resistive |
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| Please let us know if you
require a DPDT switch ! (option 804) |
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