Under the Unit pump
Available in 
US

The compact, sleek design of the Omega Pack is the ideal choice for  convenient under unit mounting.  The onboard Si-20 provides you Sauermann's high performance pumping capacities, yet with ultra quiet operation.

Modern, slim design for an attractive installation
Left or right side mounting
Versatility to remove the Si-20 allowing for in-unit mounting
Ultra quiet operation

Technical details

Max flow rate5 gph, 19 l/h
Max discharge head33 ft, 10 m
Max suction head10 ft, 3 m
Max pressure46 ft, 14 m
Insulation classDouble insulation
Mains supply120V: (OPUL01UN12) / 230V: (OPUL01UN23)
Operation conditions120V: 50%: 3s ON - 3s OFF / 230V: 60%: 3s ON - 2s OFF
ProtectionIPX2
Weight1.61 lb, 0,73 kg
ColorRAL 9010 - Pure White
Master pack quantity6
Safety switch 
NC 8A resistive - 250 V
Detection 
Integrated detection unit
Thermal protection 
239 deg. F (auto-reset)

Pump dimensions

LengthWidthHeight
Pump5 3/8'', 136 mm1 1/2'', 38 mm1 1/2'', 38 mm
Detection unit2 1/4''1 1/2''1 1/2''
Duct12 7/8'', 326 mm2 1/4'', 58 mm2 1/2'', 65 mm
Packaging14 1/8'', 358 mm3 3/8'', 85 mm4'', 102 mm

Detection levels

ON5/8'', 16 mm
OFF7/16'', 11 mm
SAFETY3/4'', 19 mm

Pump sound levels

at 3,3ft or 1m according to EN ISO3744 (dBA)>= 22
Kit contents 
Si-20 Piston Pump
Detection Unit - SI2958, 2' cable
Anti-Vibration Rubber Dampers (2)
Clear PVC Tubing, 1/4" i.d. fitted with a Drain Safe Device
Power Cable, 5' (2 power wires, 2 safety wires)
Shell (2-part: backplate & cover)
Screws & plugs for affixing backplate
90 Deg Rubber Elbow, 19/32" i.d. x L 6"
Vent Tube, 5/32" i.d. x L 2 15/16"
Split Connector, 1/2" - 10/16"
Double Wire Clamps (3)
Tie Wraps (3)
Safety standards 
UL/CSA by Intertek
Wiring diagram