The most popular series of Hydromatic submersible sump pumps. Automatic operation features wide-angle float switch (W-A1), or Hydromatic’s exclusive pressure diaphragm switch (D-A1) or Hydromatic’s vertical, mechanical float switch (V-A1). All switches feature a piggyback plug-in arrangement that allows for simple conversion to manual operation.

Cast iron body and an oil-filled motor provide superior cooling characteristics for longer pump life. Motor windings contain automatic thermal overload protection.

KEY FEATURES

• Uses carbon-ceramic mechanical shaft seal.
• Single-row ball-bearing construction.
• Oil-filled motor with automatic reset thermal overload protection.
• Piggyback electrical plug for easy maintenance and replacement.