Atmos GIGA-B 50/115-5,5/2-S1-IE4 | Monobloc pump | Wilo

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Atmos GIGA-B 50/115-5,5/2-S1-IE4

Name: Atmos GIGA-B 50/115-5,5/2-S1-IE4
Brand: Wilo
SKU: 2242725

Monobloc pump

Article number: 2242725

Series Atmos GIGA-B

Data sheet

Hydraulic data
Minimum efficiency index (MEI)	0.4
Min. fluid temperature T_min	-20 °C
Max. fluid temperature T_max	140 °C
Max. ambient temperature T_max	40 °C
Maximum operating pressure PN	16 bar
Note on dimensioning	16 bar to 120 °C, 13 bar to 140 °C

Motor data
Mains connection	3~400 V, 50 Hz
Number of poles	2
Voltage tolerance	±10 %
Motor efficiency class	IE4
Rated power P₂	5.5 kW
Rated current I_N	9.9 A
Rated speed n	2900 1/min
Power factor cos φ₁₀₀	0.90
Motor efficiency 50% η_M50%	86.7 %
Motor efficiency 75% η_M75%	88.9 %
Motor efficiency 100% η_M100%	89.2 %
Insulation class	F
Protection class motor	IP55
Motor protection	PTC integrated

Materials
Pump housing	5.1301/EN-GJL-250 KTL-coated
Impeller	Grey cast iron EN-GJL-200
Impeller (optional)	CC480K (G-CuSn10) Bronze Stainless steel 1.4408
Shaft	Stainless steel
Mechanical seal	Q1Q1X4GG
Lantern	Grey cast iron

Installation dimensions
Pipe connection on the suction side DNs	DN 65
Pipe connection on the discharge side DNd	DN 50

Ordering information

Product data
Brand	Wilo
Product description	Atmos GIGA-B 50/115-5,5/2-S1-IE4
Article number	2242725
EAN number	4062679516172
Colour	Green
Minimum order quantity	1
Date of sales availability	2025-12-01

Packaging
Packaging type	Euro pallet
Packaging property	Transport packaging
Pieces per pallet	1
Number per layer	1

Dimension, weight
Length with packaging	1200 mm
Length L	711 mm
Height with packaging	600 mm
Height H	340 mm
Width with packaging	800 mm
Width W	300 mm
Gross weight, approx. m	140 kg
Net weight, approx. m	96 kg

Single-stage glanded centrifugal pump in close-coupled design for installation on a base including foot on the pump housing.

Low-oscillation and low-noise close-coupled design with lantern and rigidly connected standard motor.

With force-flushed, bidirectional bellows mechanical seal (from 37 kW/4-pole, optionally available with a cartridge mechanical seal in back pull-out design for mechanical seal replacement without dismantling the motor) and cavitation-reducing impeller.

Flange with R 1/8 pressure measuring connections. All grey cast iron components are cataphoretic-coated.

Pumps with motors ≥ 5.5 kW are equipped as standard with a PTC thermistor sensor for motor protection.

The motor terminal box ≤ 7.5 kW can be made of metal or plastic. If a metal terminal box is absolutely necessary, please order the appropriate special variant. The motor terminal boxes > 7.5 kW are always made of metal.

Mechanical seal S1 recommended for water-glycol mixtures with glycol proportions up to max. 50 % by volume and a fluid temperature of -20 °C up to max. +90 °C ... +110 °C and also if there is oil in the water-glycol mixture.

Operating data
Min. fluid temperature T_min	-20 °C
Max. fluid temperature T_max	140 °C
Min. ambient temperature T_min	0 °C
Max. ambient temperature T_max	40 °C
Maximum operating pressure PN	16 bar
Note on dimensioning	16 bar to 120 °C, 13 bar to 140 °C
Minimum efficiency index (MEI)	0.4

Motor data
Motor efficiency class	IE4
Mains connection	3~400 V, 50 Hz
Voltage tolerance	±10 %
Rated power P₂	5500 W
Rated speed n	2900 1/min
Rated current I_N	9.9 A
Power factor cos φ₁₀₀	0.90
Motor efficiency 50% η_M50%	86.7 %
Motor efficiency 75% η_M75%	88.9 %
Motor efficiency 100% η_M100%	89.2 %
Insulation class	F
Protection class	IP55

Materials
Pump housing	5.1301/EN-GJL-250 KTL-coated
Impeller	Grey cast iron
Shaft	Stainless steel
Shaft seal	Q1Q1X4GG
Lantern	Grey cast iron

Installation dimensions
Pipe connection on the suction side DNs	DN 65
Pipe connection on the discharge side DNd	DN 50

Ordering information
Brand	Wilo
Product description	Atmos GIGA-B 50/115-5,5/2-S1-IE4
Net weight, approx. m	96 kg
Article number	2242725

Installation type

Continuous, infinitely variable control, differential pressure-sensitive CC-HVAC system (23)
CC-HVAC system
	CC-HVAC-System 1x10A-T34-DOL-FC-WM	2527824	GBP 14,054.-
	CC-HVAC-System 3x10A-T34-DOL-FC-WM	2527826	GBP 15,854.-
	CC-HVAC-System 4x10A-T34-DOL-FC-WM	2527827	GBP 16,972.-
	CC-HVAC-System 5x10A-T34-DOL-FC-WM	2527828	GBP 17,527.-
	CC-HVAC-System 6x10A-T34-DOL-FC-WM	2527829	GBP 18,390.-

Antenna GSM/GPRS
	D-network dual-band antenna with 3 m cable	2533862	GBP 249.-
	D-network tri-band antenna 10 m cable	2533863	GBP 747.-
	D-network tri-band antenna 15 m cable	2533864	GBP 825.-

Outdoor temperature sensor Pt 100
	Outdoor temperature sensor Pt 100	2533772	GBP 179.-

DDG impulse selector
	DDG impulse selector	2533770	GBP 765.-

BMS base module
	BMS base module	2533800	GBP 1,032.-

Communication module ModBus
	Communication module Modbus RTU	2533869	GBP 845.-

Pump signalling module
	Signalling module pump 1-2	2533812	GBP 600.-
	Signalling module pump 3-6	2533836	GBP 599.-

Signal converter retrofit kit
	Signal converter 0-10 V / 0-20 mA	2534992	GBP 376.-

Connection cable control modules/signalling modules
	Signalling modules connecting cable	2533890	GBP 274.-
	Control modules connecting cable	2533790	GBP 274.-

PTC thermistor tripping unit
	PTC thermistor tripping unit	509275993	on request

DDG (4-20mA)
	Wilo-DDG 10 Signal Trans.(4-20mA)2G VP.	2136454	GBP 472.-
	Wilo-DDG 20 Signal Trans.(4-20mA)2G VP.	2136456	GBP 472.-
	Wilo-DDG 40 Signal Trans.(4-20mA)2G VP.	2136458	GBP 472.-
	Wilo-DDG 60 Signal Trans.(4-20mA)2G VP.	2136460	GBP 472.-
	Wilo-DDG 100 Signal Trans.(4-20mA)	2211740	GBP 472.-


Continuous, infinitely variable control, temperature-dependent CC-HVAC system (19)
CC-HVAC system
	CC-HVAC-System 1x10A-T34-DOL-FC-WM	2527824	GBP 14,054.-
	CC-HVAC-System 3x10A-T34-DOL-FC-WM	2527826	GBP 15,854.-
	CC-HVAC-System 4x10A-T34-DOL-FC-WM	2527827	GBP 16,972.-
	CC-HVAC-System 5x10A-T34-DOL-FC-WM	2527828	GBP 17,527.-
	CC-HVAC-System 6x10A-T34-DOL-FC-WM	2527829	GBP 18,390.-

Antenna GSM/GPRS
	D-network dual-band antenna with 3 m cable	2533862	GBP 249.-
	D-network tri-band antenna 10 m cable	2533863	GBP 747.-
	D-network tri-band antenna 15 m cable	2533864	GBP 825.-

Outdoor temperature sensor Pt 100
	Outdoor temperature sensor Pt 100	2533772	GBP 179.-

BMS base module
	BMS base module	2533800	GBP 1,032.-

Communication module ModBus
	Communication module Modbus RTU	2533869	GBP 845.-

Pump signalling module
	Signalling module pump 1-2	2533812	GBP 600.-
	Signalling module pump 3-6	2533836	GBP 599.-

Signal converter retrofit kit
	Signal converter 0-10 V / 0-20 mA	2534992	GBP 376.-

Temperature module
	Temperature module for systems with 1-3 pumps	2534991	GBP 1,817.-
	Temperature module for systems with 4-6 pumps	2533771	GBP 1,485.-

Connection cable control modules/signalling modules
	Signalling modules connecting cable	2533890	GBP 274.-
	Control modules connecting cable	2533790	GBP 274.-

PTC thermistor tripping unit
	PTC thermistor tripping unit	509275993	on request


Continuous, infinitely variable control, differential pressure-sensitive SC-HVAC system (25)
Antenna GSM/GPRS
	D-network dual-band antenna with 3 m cable	2533862	GBP 249.-
	D-network tri-band antenna 10 m cable	2533863	GBP 747.-
	D-network tri-band antenna 15 m cable	2533864	GBP 825.-

Outdoor temperature sensor Pt 100
	Outdoor temperature sensor Pt 100	2533772	GBP 179.-

DDG impulse selector
	DDG impulse selector	2533770	GBP 765.-

SC communication module BACnet
	SC-communication module BACnet MS/TP (slave)	2538242	GBP 1,042.-

Communication module LON (SC)
	Communication module LON (SC)	2538243	on request

Pump signalling module
	Signalling module pump 1-2	2533812	GBP 600.-
	Signalling module pump 3-6	2533836	GBP 599.-

SC-HVAC signal board
	SC-HVAC signal board	2119646	GBP 348.-

PTC thermistor tripping unit
	PTC thermistor tripping unit	509275993	on request

Communication module GSM (SC)
	Communication module GSM (SC)	2542216	GBP 680.-

SC/SC-FC-HVAC system
	SC-HVAC system 1x10A-WM (direct starting)	2545326	GBP 4,613.-
	SC-HVAC system 2x10A-WM (direct starting)	2545327	GBP 4,968.-
	SC-HVAC system 3x10A-WM (direct starting)	2545328	GBP 3,858.-
	SC-HVAC system 4x10A-WM (direct starting)	2545329	GBP 4,208.-
	SC-FC-HVAC system 1x10A-FC-WM (direct starting)	2545442	GBP 10,027.-
	SC-FC-HVAC system 2x10A-FC-WM (direct starting)	2545443	GBP 10,647.-
	SC-FC-HVAC system 3x10A-FC-WM (direct starting)	2545444	GBP 9,414.-
	SC-FC-HVAC system 4x10A-FC-WM (direct starting)	2545445	GBP 10,060.-

DDG (4-20mA)
	Wilo-DDG 10 Signal Trans.(4-20mA)2G VP.	2136454	GBP 472.-
	Wilo-DDG 20 Signal Trans.(4-20mA)2G VP.	2136456	GBP 472.-
	Wilo-DDG 40 Signal Trans.(4-20mA)2G VP.	2136458	GBP 472.-
	Wilo-DDG 60 Signal Trans.(4-20mA)2G VP.	2136460	GBP 472.-
	Wilo-DDG 100 Signal Trans.(4-20mA)	2211740	GBP 472.-


Continuous, infinitely variable control, temperature-dependent SC-HVAC system (19)
Antenna GSM/GPRS
	D-network dual-band antenna with 3 m cable	2533862	GBP 249.-
	D-network tri-band antenna 10 m cable	2533863	GBP 747.-
	D-network tri-band antenna 15 m cable	2533864	GBP 825.-

Outdoor temperature sensor Pt 100
	Outdoor temperature sensor Pt 100	2533772	GBP 179.-

SC communication module BACnet
	SC-communication module BACnet MS/TP (slave)	2538242	GBP 1,042.-

Communication module LON (SC)
	Communication module LON (SC)	2538243	on request

Pump signalling module
	Signalling module pump 1-2	2533812	GBP 600.-
	Signalling module pump 3-6	2533836	GBP 599.-

SC-HVAC signal board
	SC-HVAC signal board	2119646	GBP 348.-

PTC thermistor tripping unit
	PTC thermistor tripping unit	509275993	on request

Communication module GSM (SC)
	Communication module GSM (SC)	2542216	GBP 680.-

SC/SC-FC-HVAC system
	SC-HVAC system 1x10A-WM (direct starting)	2545326	GBP 4,613.-
	SC-HVAC system 2x10A-WM (direct starting)	2545327	GBP 4,968.-
	SC-HVAC system 3x10A-WM (direct starting)	2545328	GBP 3,858.-
	SC-HVAC system 4x10A-WM (direct starting)	2545329	GBP 4,208.-
	SC-FC-HVAC system 1x10A-FC-WM (direct starting)	2545442	GBP 10,027.-
	SC-FC-HVAC system 2x10A-FC-WM (direct starting)	2545443	GBP 10,647.-
	SC-FC-HVAC system 3x10A-FC-WM (direct starting)	2545444	GBP 9,414.-
	SC-FC-HVAC system 4x10A-FC-WM (direct starting)	2545445	GBP 10,060.-

Mechanical accessories

Pipe installation, adapter fitting (5)
Intermediate flange connecting piece F
	Intermediate flange pieces F 3, DN 50x20mm, PN 10/16	110623190	GBP 90.-
	Intermediate flange pieces F 5, DN 50x35mm, PN 10/16	110623396	GBP 117.-
	Intermediate flange pieces F 4, DN 50x30mm, PN 10/16	110681395	GBP 100.-
	Intermediate flange pieces F 40, DN 50x160mm, PN 10/16	2101156	GBP 616.-
	Intermediate flange pieces F 2, DN 50x10mm, PN 10/16	110791494	GBP 63.-


Wall fixation/installation on a base (2)
Base motor
	Supporting block motor H28 BG.132	4213054	GBP 417.-

Base pump housing
	Supporting block pump housing H28 (50/250)	4213027	GBP 506.-

Electrical accessories

Pump control (19)
Wilo-EFC
	EFC4 3x380-480V 50/60Hz IP55	2193436	GBP 2,804.-

Auto Control Inverters
	1.1 Kw Inverter	2815036	GBP 1,479.-
	18.5 Kw Inverter	2816036	GBP 3,978.-
	30 Kw Inverter	2816039	GBP 5,202.-
	7.5 Kw Inverter	2816047	GBP 2,372.-
	3 Kw Inverter	2816055	GBP 1,803.-
	1.5 Kw Inverter	2816056	GBP 1,545.-
	2.2 Kw Inverter	2816057	GBP 1,668.-
	4 Kw Inverter	2816058	GBP 1,895.-
	5.5 Kw Inverter	2816059	GBP 2,141.-
	11 Kw Inverter	2816060	GBP 3,064.-
	15 Kw Inverter	2816061	GBP 3,352.-
	22 Kw Inverter	2816062	GBP 4,620.-
	37 Kw Inverter	2816063	GBP 6,257.-
	45 Kw Inverter	2816064	GBP 7,367.-
	55 Kw Inverter	2816065	GBP 8,649.-
	75 Kw Inverter	2816066	GBP 10,469.-
	90 Kw Inverter	2816067	GBP 11,944.-
	110 Kw Inverter	2816068	on request


Pump control/accessories (25)
Communication module CC
	CC communication module	2533850	GBP 399.-

Connection cable control modules/signalling modules
	Control modules connecting cable	2533790	GBP 274.-
	Signalling modules connecting cable	2533890	GBP 274.-

BMS base module
	BMS base module	2533800	GBP 1,032.-

Antenna GSM/GPRS
	D-network dual-band antenna with 3 m cable	2533862	GBP 249.-
	D-network tri-band antenna 10 m cable	2533863	GBP 747.-
	D-network tri-band antenna 15 m cable	2533864	GBP 825.-
	SMA/FME adapter	2545548	on request

Pump signalling module
	Signalling module pump 1-2	2533812	GBP 600.-
	Signalling module pump 3-6	2533836	GBP 599.-

Outdoor temperature sensor Pt 100
	Outdoor temperature sensor Pt 100	2533772	GBP 179.-

Signal converter retrofit kit
	Signal converter 0-10 V / 0-20 mA	2534992	GBP 376.-

DDG impulse selector
	DDG impulse selector	2533770	GBP 765.-

Temperature module
	Temperature module for systems with 4-6 pumps	2533771	GBP 1,485.-
	Temperature module for systems with 1-3 pumps	2534991	GBP 1,817.-

Communication module ModBus
	Communication module Modbus RTU	2533869	GBP 845.-

Communication module Profibus
	Profinet communication module	4255989	on request

SC communication module BACnet
	SC-communication module BACnet MS/TP (slave)	2538242	GBP 1,042.-
	BACnet IP SC communication module	2553366	GBP 2,152.-

Communication module LON (SC)
	Communication module LON (SC)	2538243	on request

Communication module GSM (SC)
	Communication module GSM (SC)	2542216	GBP 680.-

SC-HVAC signal board
	SC-HVAC signal board	2119646	GBP 348.-

Output filter EFC (150-500 m cable length)
	10 A sin IP54 Wilo-EFC filter	6084562	GBP 2,164.-
	10 A sin IP00 Wilo-EFC filter	6084577	GBP 710.-
	10 A sin IP20 Wilo-EFC filter	6084903	GBP 761.-


Pump control/Comfort control system (5)
CC-HVAC system
	CC-HVAC-System 1x10A-T34-DOL-FC-WM	2527824	GBP 14,054.-
	CC-HVAC-System 3x10A-T34-DOL-FC-WM	2527826	GBP 15,854.-
	CC-HVAC-System 4x10A-T34-DOL-FC-WM	2527827	GBP 16,972.-
	CC-HVAC-System 5x10A-T34-DOL-FC-WM	2527828	GBP 17,527.-
	CC-HVAC-System 6x10A-T34-DOL-FC-WM	2527829	GBP 18,390.-


Pump control/Smart control system (8)
SC/SC-FC-HVAC system
	SC-HVAC system 1x10A-WM (direct starting)	2545326	GBP 4,613.-
	SC-HVAC system 2x10A-WM (direct starting)	2545327	GBP 4,968.-
	SC-HVAC system 3x10A-WM (direct starting)	2545328	GBP 3,858.-
	SC-HVAC system 4x10A-WM (direct starting)	2545329	GBP 4,208.-
	SC-FC-HVAC system 1x10A-FC-WM (direct starting)	2545442	GBP 10,027.-
	SC-FC-HVAC system 2x10A-FC-WM (direct starting)	2545443	GBP 10,647.-
	SC-FC-HVAC system 3x10A-FC-WM (direct starting)	2545444	GBP 9,414.-
	SC-FC-HVAC system 4x10A-FC-WM (direct starting)	2545445	GBP 10,060.-


Pump control/interface module (5)
IF Modules EFC
	Profibus DP MCA Wilo-EFC	2193451	GBP 550.-
	DeviceNet MCA Wilo-EFC	2193452	GBP 498.-
	Profinet MCA Wilo-EFC	2193453	GBP 816.-
	Ethernet/IP MCA Wilo-EFC	2193454	GBP 816.-
	Modbus TCP MCA Wilo-EFC	2193455	GBP 816.-


Differential pressure detection (5)
DDG (4-20mA)
	Wilo-DDG 10 Signal Trans.(4-20mA)2G VP.	2136454	GBP 472.-
	Wilo-DDG 20 Signal Trans.(4-20mA)2G VP.	2136456	GBP 472.-
	Wilo-DDG 40 Signal Trans.(4-20mA)2G VP.	2136458	GBP 472.-
	Wilo-DDG 60 Signal Trans.(4-20mA)2G VP.	2136460	GBP 472.-
	Wilo-DDG 100 Signal Trans.(4-20mA)	2211740	GBP 472.-


Motor protection (2)
PTC thermistor tripping unit
	PTC thermistor tripping unit	509275993	on request

Surcharge for thermistor sensor (single pumps)
	Surcharge for thermistor sensor <7.5 kW	KLF_7_EP	on request

With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.

Extended Warranty
	Extended Warranty Glanded pumps	2219590	GBP 2.-

Supervision
	Supervision Glanded pumps	2219321	GBP 2.-

Installation
	Installation Glanded pumps	2219356	GBP 2.-

Commissioning
	Commissioning Glanded pumps	2219391	on request

Maintenance
	Maintenance BASIC Glanded pumps	2219531	GBP 146.-
	Maintenance COMFORT Glanded pumps	2219493	on request
	Maintenance PREMIUM Glanded pumps	2219546	GBP 2.-

System Optimisation
	System Optimisation Glanded pumps	2219251	on request

Energy Solutions
	Energy Solutions Glanded pumps	2219240	GBP 2.-

Repairs
	Repair Glanded pumps	2219610	GBP 2.-

P₂≤ 3 kW	3~400 V Y
	3~230 V ∆
P₂≥ 4 kW	3~690 V Y
	3~400 V ∆

Atmos GIGA-B 50/115-5,5/2-S1-IE4

Monobloc pump

Data sheet

Pump curves

Wiring diagram

Ordering information

Filtered by

Datasheet and documentation

Generate PDF

Catalogue creation

Installation type

CC-HVAC system

Antenna GSM/GPRS

Outdoor temperature sensor Pt 100

DDG impulse selector

BMS base module

Communication module ModBus

Pump signalling module

Signal converter retrofit kit

Connection cable control modules/signalling modules

PTC thermistor tripping unit

DDG (4-20mA)

CC-HVAC system

Antenna GSM/GPRS

Outdoor temperature sensor Pt 100

BMS base module

Communication module ModBus

Pump signalling module

Signal converter retrofit kit

Temperature module

Connection cable control modules/signalling modules

PTC thermistor tripping unit

Antenna GSM/GPRS

Outdoor temperature sensor Pt 100

DDG impulse selector

SC communication module BACnet

Communication module LON (SC)

Pump signalling module

SC-HVAC signal board

PTC thermistor tripping unit

Communication module GSM (SC)

SC/SC-FC-HVAC system

DDG (4-20mA)

Antenna GSM/GPRS

Outdoor temperature sensor Pt 100

SC communication module BACnet

Communication module LON (SC)

Pump signalling module

SC-HVAC signal board

PTC thermistor tripping unit

Communication module GSM (SC)

SC/SC-FC-HVAC system

Mechanical accessories

Intermediate flange connecting piece F

Base motor

Base pump housing

Electrical accessories

Wilo-EFC

Auto Control Inverters

Communication module CC

Connection cable control modules/signalling modules

BMS base module

Antenna GSM/GPRS

Pump signalling module

Outdoor temperature sensor Pt 100

Signal converter retrofit kit

DDG impulse selector

Temperature module

Communication module ModBus

Communication module Profibus

SC communication module BACnet

Communication module LON (SC)

Communication module GSM (SC)

SC-HVAC signal board

Output filter EFC (150-500 m cable length)

CC-HVAC system

SC/SC-FC-HVAC system

IF Modules EFC

DDG (4-20mA)

PTC thermistor tripping unit