Submersible pumps


Unbeatably light and easy to operate

The NAUTILUS is the first submersible pump from Rosenbauer with an electric drive. It represents more than 100 years of know-how in pump technology. The advantages of the NAUTILUS are obvious: easy handling, simple operation, high performance. They are some of the lightest submersible pumps in their class and are DIN 14425 certified.


Impresses with

  • Certified according to DIN 14425
  • Proven Rosenbauer pump technology
  • Easy to carry and operate
  • Flat suction down to just a few millimeters
  • Lightweight, slim construction

The NAUTILUS submersible pump is certified according to DIN 14425 and the "Submersible Pumps" standard of the Austrian Federal Fire Brigade Association (ÖBFV) The submersible pump is available in these designs:

  • NAUTILUS 4/1
  • NAUTILUS 8/1


  • Powerful at start-up with little power thanks to starting capacitor: NAUTILUS 4/1: Operation with power generator from 5 kVA
  • Integrated motor protection relay protects the submersible pump against damage
  • A higher intake strainer has plenty of suction inlets even in case of partial contamination – high pump performance is guaranteed
  • Flat suction down to 4 mm without additional components that have to be attached or dismantled
  • Oil and maintenance-free electric motor
  • Inspection opening for checking the mechanical shaft seal
  • Ergonomically shaped carrying handles make carrying comfortable for one or two person(s)
  • More space in the coupling area so that attaching and detaching the hoses is easier and faster (can be equipped with all standard coupling systems)
  • Can be fitted with all common coupling systems
  • More space near the lifting eyelet guarantees compatibility with every carabiner for fast and reliable attachment
  • The pump can be easily turned upside down in the area of the impeller for maintenance work without help from a second person (when using a Storz B coupling)
  • Because the suction strainer is mounted with only three screws, it is easy to remove and, therefore, it is possible to free the impeller as quickly as possible from cords, etc.
  • Compatible with existing vehicle mounts


The NAUTILUS 4/1 is also available as a practical submersible pump set, consisting of:

  • NAUTILUS 4/1 with Storz B coupling
  • Coupling key ABC DIN 14882
  • Firefighting hose B 20, length: 20 m (65.6’)
  • Outlet pipe B
  • B-elbow 90°
  • Hose kink protection
  • Rope hose holder
  • Working rope with carabiner and linen bag, length: 20 m (65.6')
  • PRCD-S safety switch
  • Wire protection cage with 2 carry handles, can be used as transport and suction protection basket (dimensions 615 x 455 x 410 mm (24.2" x 17.9" x 17.7"))
Technical data  
Supply voltage:230 V / 1 ~ / 50 Hz230 V / 1 ~ / 60 Hz
Power input:2.07 kVA, cos 0.992.07 kVA, cos 0.99
Power output:1.49 kW1.54 kW
Nominal current:9 A9 A
Connection cable:H07RN-F 3G1.5H07RN-F 3G1.5
Discharge connection:G 2 ½ " ext. threadG 2 ½ " ext. thread
Particle screen (Ø):8 mm (5/16")8 mm (5/16")
Weight with cable:23 kg (50.7 Lbs)23 kg (50.7 Lbs)
Dimensions (Ø x H):250 x 455 mm (9.8" x 17.9")250 x 455 mm (9.8" x 17.9")
Nominal delivery rate:400 l/min at 1 bar = 10 m discharge height
(106 gpm at 14.5 psi = 32.8' discharge height)
400 l/min at 1 bar = 10 m discharge height
(106 gpm at 14.5 psi = 32.8' discharge height)
Temperature pumped medium:0 to 35 °C, temporary up to max. 60 °C
(32 to 95 °F, temporary up to max. 140 °F)
0 to 35 °C, temporary up to max. 60 °C
(32 to 95 °F, temporary up to max. 140 °F)
Protection class:Pump without plug IP 68Pump without plug IP 68


  • Tested according to DIN 14425 - TP 4/1 and the "Submersible pumps" norm sheet of the Austrian Fire Brigade Association (ÖBFV)
  • Specially developed for operation with smaller 3 kVA generators 
Technical data  
Supply voltage:230 V/1 phase115 V/1 phase
Power input:1.84 kVA, cos 0.981.73 kVA, cos 0.98
Power output:1.2 kW1.1 kW
Nominal current:8 A15 A
Connection cable:HO7RN-F 3G1,5H07BQ-F 3G2,5
Particle screening (Ø):8 mm (5/16")8 mm (5/16")
Weight with cable:22 kg (48.5 Lbs)22 kg (48.5 Lbs)
Dimensions (Ø x H):250 x 436 mm (9.8" x 17.2")250 x 436 mm (9.8" x 17.2")
Nominal delivery rate:420 l/min at 1,0 bar = 10 m discharge height
(106 gpm at 14.5 psi = 32.8' discharge height)
Temperature pumped medium0 to 35 °C, temporary up to max. 60 °C
(32 to 95 °F, temporary up to max. 140 °F)
0 to 35 °C, temporary up to max. 60 °C
(32 to 95 °F, temporary up to max. 140 °F)
Protection class:Pump without plug IP 68Pump without plug IP 68


  • Certified according to DIN 14425 type 8/1 and the "Submersible Pumps" standards of the ÖBFV
  • 17% more power than the minimum requirement indicated in the standard for 1 bar
  • One of the strongest pumps in its class
  • Conveys dirty water up to a grain size of 10 mm
  • Suctions water up to a water level of approx. 8 mm
  • At only 30 kg, one of the lightest submersible pumps on the market
  • Rotation direction display on the CEE motor protection on/off switch. The rotation direction is easily altered, if necessary, using the phase changer on the plug.
  • Can be operated upright, on its side or fully submerged 
Technical data 
Supply voltage:400 V / 3~ / 50 Hz
Power consumption:4.2 kVA, cos 0.8
Power output:2.8 kW
Nominal current:6 A
Connection cable:H07RN-F 4G1.5
Discharge connection:G 2 ½ " ext. thread
Particle screen:10 mm (25/64")
Weight (incl. cable):30 kg (66 Lbs)
Dimensions:259 x 485 mm (10.2" x 19.1")
Nominal delivery rate: 800 l/min at 1 bar = 10 m discharge height
(211 gpm at 14.5 psi = 32.8' discharge height)
Pumped medium temperature:0 to 35 °C, temporary up to max. 60 °C
(32 to 95 °F, temporary up to max. 140 °F)
Pump protection class:IP 68

Flat suction down to just a few millimeters

The integrated flat-suction device allows water to be pumped down to just a few millimeters:

  • NAUTILUS 8/1: approx. 8 mm
  • NAUTILUS 4/1 and 4/1 ECO: approx. 4 mm

Doing so requires neither the removal of the suction screen, nor an additional device mounted on the pump.

Perfect design. Impressive advantages.

Quick fastening of the working rope

The working rope carabiner can be hooked into an eyelet specially provisioned for this purpose. As a result, the NAUTILUS can be safely lowered and then pulled up. Thanks to their slim design, NAUTILUS submersible pumps are also made for use in tight shafts and wells .

Integrated cable support

The NAUTILUS is equipped with a special cable (length 20 m). The cable support makes transport easier and ensures space-saving accommodation in the vehicle.

Cable tension release

The cable tension release serves to prevent damage in the area of the grommet.

Inspection opening for mechanical shaft seal

The mechanical shaft seal can be examined easily and at any time with the aid of a special inspection opening.


Service Contact

For queries regarding service, spare parts, warranties, service appointments, and rental vehicles.

Tel: +49 3371 6905-986

Spare parts
Tel: +49 3371 6905-993

Spare parts aerials
Tel: +49 721 5965-400