Spec Sheet

SUBMERSIBLE SUMP PUMPS
MYERS
®
MDC33/MDC50
APPLICATIONS
The Myers MDC series cast iron
sump pumps are designed to operate
in a variety of installations. A
unique combination of corrosion-
resistant materials make these
pumps a great choice for the
extreme conditions. Pump intake
screen, impeller, volute base, switch,
and power cord are serviceable.
Available in 1/3 and 1/2 HP models.
Capacities – Up to 62 GPM (234 LPM)
Shut-off Head – Up to 32’ (9.75 m)
Operation – Tethered Models
On: 12-1/2” (318 mm); Off: 3-1/2” (89 mm)
Vertical Models
On: 6-1/2” (165 mm); Off: 2” (51 mm)
Solids Handling – 1/2” (12.7 mm)
Liquids Handling – Drainage effluent
Continuous Liquid Temperature –
130°F (54°C)
Motor/Electrical Data – 1/3 HP, 9.8A;
1/2 HP, 12A; shaded pole with thermal
overload protection, 115V, 1Ø, 60Hz,
1550 RPM
Acceptable pH Range – 6-9
Shaft Seal – Carbon and ceramic
Housing – Heavy cast iron
Power Cord – 10’ (3 m) or 20’ (6 m), 16/3,
SJTW, SJTW-A
Discharge, NPT – 1-1/2”
Min. Sump Diameter –
Teathered: 14” (356 mm)
Vertical: 10” (254 mm)
SPECIFICATIONS
Solid and Reliable
High-endurance, oil-cooled motor
provides continuous bearing lubrica-
tion and maximizes heat dissipation
High-flow Discharge
1-1/2” (38 mm) NPT discharge
Eliminates Failures
Shaded pole motor eliminates failure-
prone switches and relays
Motor Protection
Long-life carbon/ceramic seal
protects motor against water leakage
Thermal Overload
Heat sensor overload protection with
automatic reset when motor cools
to a safe operating temperature
Extended Service
Lubricated ball bearings and shaft
seal for longer service life
No Drilling Required
Anti-airlock hole in base reduces
added labor
Piggyback Convenience
Vertical and tethered switch models
offer a piggyback plug for automatic
or manual operation
FEATURES
ORDERING INFORMATION
Approx.
Catalog Phase/ Discharge Switch Cord Wt.
Number HP Volts Cycles Amps Size Type Length Lbs.
MDC33V1 1/3 115 1/60 9.8 1-1/2"
Vertical
10' 24
Automatic*
MDC50P1 1/2 115 1/60 12 1-1/2”
Tethered
10’ 27
Automatic*
MDC50PC1 1/2 115 1/60 12 1-1/2”
Tethered
20’ 27
Automatic*
MDC50V1 1/3 115 1/60 9.8 1-1/2”
Vertical
10’ 27
Automatic*
MDC50VC1 1/3 115 1/60 9.8 1-1/2”
Vertical
20’ 27
Automatic*
Basement sumps, dewatering, light
effluent, water transfer
*Piggyback