Wilo-Stratos GIGA B
Maximum performance at the highest levels of energy efficiency.
The Wilo-Stratos GIGA B is the ideal high-efficiency pump for use in heating, air conditioning and cooling applications in buildings where large volumes of water have to be pumped to great delivery heads.
Your advantages
- Innovative, high-efficiency pump for maximum overall efficiency with principal dimensions in accordance with EN 733
- High-efficiency EC motor with efficiency class IE5 according to IEC 60034-30-2
- Optional interfaces for bus communication using plug-in IF modules
IE5 motor
High-efficiency EC motor with efficiency class IE5 according to IEC 60034-30-2
Green Button Technology
Well known set-up and use of the pump.
Interfaces
- Analogue input 0 (2)-10 V / 0 (4)-20 mA
- SSM and SBM
- Digital input Ext. off
Control Modes
- Δp-c
- Δp-v
- n const
- PID
IF modules optional
- Bus communication BACnet, Modbus, LON, CANopen, PLR
- Wilo-Smart IF module for Bluetooth

I now always design with the Stratos GIGA when I need a universal solution for HVAC applications.
Product family:

Wilo-Stratos GIGA B 11-22 kW

Wilo-Stratos GIGA <11 kW

Wilo-Stratos GIGA B <11 kW

Wilo-Stratos GIGA D 11-22 kW

Wilo-Stratos GIGA 11-22 kW

Wilo-Stratos GIGA-D <11 kW
Convenient connectivity and control for maximum operational reliability.
Wilo-Smart Connect is the general Wilo communications platform for access to existing and future Wilo pumps and pump systems with local and remote access to the Smart connect function in the Wilo-Assistant app. For existing pumps, a Wilo-Smart IF module is also required for access.
more informationThe upgrade module for digital pump access
The Wilo-Smart IF module offers the option of making earlier-generation Wilo pumps accessible for Wilo-Smart connect, allowing the user to control them via remote access on the Wilo-Gateway or locally via Bluetooth interface.
more informationData transmission for remote access in real time.
The Wilo-Smart Gateway is the link to the Wilo-Smart Cloud for remote monitoring and control of pumps via mobile devices. For Wilo-Smart Connect remote access, the Wilo-Smart Gateway transmits operating data and control signals between the Wilo pumps in the Wilo-Smart Cloud online in real time.
more informationThe entire world of pumps in one app
The “Wilo Assistant” makes the entire world of high-efficiency pump technology available on smartphones and tablets for sanitation, heating and air-conditioning specialists and specialist consultants of technical building equipment.
more informationCarefree package for your everyday working life
With Wilo as your partner, you cannot only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, carefree package of well-thought-out services.
more informationSeries description



Your advantages
- Innovative, high-efficiency pump for maximum overall efficiency with principal dimensions in accordance with EN 733
- High-efficiency EC motor with efficiency class IE5 according to IEC 60034-30-2
- Optional interfaces for bus communication using plug-in IF modules
Maximum performance at the highest levels of energy efficiency.
The Wilo-Stratos GIGA B is the ideal high-efficiency pump for use in heating, air conditioning and cooling applications in buildings where large volumes of water have to be pumped to great delivery heads.
Construction
High-efficiency monobloc pump with EC motor and electronic power adjustment in glanded pump design Version as single-stage low-pressure centrifugal pump with flange connection and mechanical seal.
Application
The pumping of heating water (in accordance with VDI 2035), cold water and water-glycol mixtures without abrasive substances in heating, cold water and cooling systems.
Equipment/function
Operating modes
- Δp-c for constant differential pressure
- Δp-v for variable differential pressure
- PID-Control
- Constant speed (n=constant)
Manual operation level
- Green button and display
Manual functions
- Differential pressure setpoint setting
- Setting the speed (manual control mode)
- Setting the operating mode
- Setting the pump ON/OFF
- Configuration of all operating parameters
- Fault acknowledgement
External control functions
- "Overriding Off" control input
- “External pump cycling” control input (only effective in twin-head pump operation)
- Analogue input 0 – 10 V, 0 – 20 mA for constant speed (DDC) and remote setpoint adjustment
- Analogue input 2 – 10 V, 4 – 20 mA for constant speed (DDC) and remote setpoint adjustment
- Analogue input 0 – 10 V for actual value signal from pressure sensor
- Analogue input 2 – 10 V, 0 – 20 mA, 4 – 20 mA for actual value signal from pressure sensor
Signal and display functions
- Collective fault signal SSM
- Collective run signal SBM
Data exchange
- Infrared interface for wireless data exchange with IR-Monitor/IR-Stick
- Plug-in position for Wilo IF-Modules (Modbus, BACnet, CAN, PLR, LON) for connection to building automation
Safety functions
- Full motor protection with integrated trip electronics
- Access disable
Dual pump management (2 x single pump, Y-piece application only)
- Main/standby operation (automatic fault-actuated switchover)
- Pump cycling main/standby operation after 24 hours
- Parallel operation
Scope of delivery
- Pump
- Installation and operating instructions
Type key
Example | Wilo-Stratos GIGA B 40/1-51/4,5 |
Stratos GIGA | High-efficiency pump |
B | Monobloc design |
40 | Nominal diameter DN of the flange connection (for Stratos GIGA B: pressure side) [mm] |
1-51 | 1 = lowest selectable delivery head [m] 51 = highest selectable delivery head [m] |
4,5 | Rated power P2 in [kW] |
-xx | Version: E.g. R1 - version without differential pressure sensor |
Technical data
- Permitted temperature range of the fluid: -20 °C to +140 °C
- Mains connection 3~480 V ±10 %, 50/60 Hz, 3~440 V ±10 %, 50/60 Hz, 3~400 V ±10 %, 50/60 Hz, 3~380 V -5 % +10 %, 50/60 Hz
- Protection class IP55
- Max. operating pressure 16 bar up to +120 °C, 13 bar up to +140 °C
Materials
- Pump housing and lantern: EN-GJL-250
- Impeller: PPS-GF40
- Shaft: 1.4122
- Mechanical seal: AQEGG; other mechanical seals on request
Duty chart
Wilo-Stratos GIGA B

