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GENERAL SPECIFICATIONS
PAGE 158
WEBSITE: www.magnecraft.com EMAIL:info@magnecraft.com FAX ON DEMAND 1-800/891-2957, DOCUMENT 100
C L A S S
MDR
60 per minute maximum
80% of nominal voltage, Typ. AC & DC coils.
78% of nominal voltage, typ. AC coils
65% of nominal voltage, typ. DC coils
Mercury
.002 ohm M60 & M100
.003 ohm M30 & M35
50 Milliseconds typical
80 Milliseconds typical
2650 V rms
- 35C to + 60C Under continuous load.
5,000,000 Operations
250,000 Operations
Class B - 130C & M35 pressure connectors for
AWG 6-14 wire; M60 pressure connectors for AWG
2 - 12 wire
Vertical
±
10
Combination of SPST-NO & SPST-NC contact configurations.
available. Other coil voltages available .
COIL
Frequency of Operation:
Pull-in voltage
Dropout voltage
CONTACTS
Material:
Contact resistance:
TIMING
Operate (at nominal voltage)
Dropout (at nominal voltage)
DIELECTRIC STRENGTH
All mutually insulated points to ground:
TEMPERATURE
Operating:
LIFE
Mechanical: (No load)
Electrical (Rated load)
MISCELLANEOUS
Insulation Material:
Mounting:
Options:
PROTECTIVE COIL
COVERS
MDR'S ARE IDEAL FOR SWITCHING RESISTIVE, TUNGSTEN, AND
MOTOR LOADS FOR BOTH AC AND DC APPLICATIONS.
UL Listed
File No. E52197
HERMETICALLY SEALED IN STEEL TUBES
Every contactor tube is hermetically sealed to provide
maximum life, protection to the user from arcing and the
hazards of switching heavy loads with exposed contacts.
LIQUID MERCURY CONTACT
Liquid mercury means a new contact surface after
every operation. Mercury is self-renewing, it cannot
pit, weld, disintegrate or oxidize. The internal
resistance of the contact surfaces typically measure
only a few Milliohms and is ideal for switching large
loads safely.
SPECIFICATIONS MERCURY DISPLACEMENT RELAYS