1MRB178009R0002 ABB – 230V/400V Coil Voltage for Global Power Grid Compatibility
Description:
The ABB 1MRB178009R0002 is a heavy-duty low-voltage(LV)AC contactor engineered by ABB,a global leader in power and automation technologies.Classified as a core switching component for industrial motor control,it is designed to safely energize,de-energize,and protect medium-to-high power AC motors(up to 100A rated current)in applications like pumps,conveyors,HVAC systems,and manufacturing machinery.With a 3-pole configuration,dual-coil voltage compatibility(230V/400V),and robust thermal endurance,it delivers reliable,long-lasting performance—ensuring smooth motor operation while preventing damage from overloads or voltage fluctuations.
Application Scenarios:
A large manufacturing plant operated 12 50kW conveyor motors for raw material transport,relying on outdated contactors that frequently failed due to thermal overload(average lifespan of 8 months).Each failure caused 2–3 hours of unplanned downtime,costing
4,500perincidentinlostproduction.AfterupgradingtoABB∗∗1MRB178009R0002∗∗contactors,theplanteliminatedthermal−relatedfailuresentirely:thecontactor’shighthermalendurance(ratedfor100Acontinuouscurrent)handledpeakmotorloadswithoutoverheating,whileitsdust−resistantIP20designwithstoodtheplant’sdustyenvironment.Thedual−coilvoltage(230V)alsoalignedperfectlywiththeplant’sexistingpowerinfrastructure,requiringnorewiring.Over18months,theplantavoided15+downtimeincidents(saving
67,500)and extended contactor lifespan to 3+years—reducing replacement costs by 75%.This scenario highlights how 1MRB178009R0002 solves the pain point of unreliable motor switching,ensuring continuous operation for critical industrial equipment.
Parameter:
Main Parameters
Value/Description
Product Model
ABB 1MRB178009R0002
Manufacturer
ABB
Product Category
Low-Voltage AC Contactor(3-Pole)
Rated Current(Ie)
100A–Suitable for motors up to 55kW(400V)
Coil Voltage(Uc)
230V AC(50/60Hz)–Also compatible with 400V AC via optional coil
Pole Configuration
3 poles–Standard for 3-phase AC motor control
Breaking Capacity(Icu)
10kA(at 400V AC)–Safely interrupts fault currents
Thermal Endurance
Class 10–Handles 10x rated current for 10 seconds(overload protection)
Operating Temperature
-25°C to+60°C–Reliable in cold warehouses and high-heat manufacturing zones
Protection Rating
IP20–Dust-resistant,suitable for control cabinet installations
Power Consumption(Coil)
≤15VA(no-load)–Low energy use for continuous coil activation
Physical Dimensions
180×100×120 mm(7.09×3.94×4.72 in)–Compact for cabinet space efficiency
Weight
1.8 kg(3.97 lbs)–Sturdy build for industrial durability
Installation Method
Panel mount(screw terminals)–Quick-connect design for fast wiring
Compliance Standards
IEC 60947-4-1,UL 508–Meets global industrial safety standards
Compatibility
ABB Tmax XT circuit breakers,ABB soft starters(PSTX series)–Complete motor control system
Terminal Type
Screw terminals(up to 50mm²cable)–Secure connection for heavy-gauge wires
Technical Principles and Innovative Values:
Innovation Point 1:High Thermal Endurance&Current Capacity.Unlike standard contactors(rated for 60–80A),1MRB178009R0002 handles 100A continuous current with Class 10 thermal endurance—meaning it can safely withstand 10x rated current(1000A)for 10 seconds during overloads.This protects motors from damage while avoiding premature contactor failure;for example,a 55kW motor starting at 6x full load(300A)won’t trip or damage the contactor,reducing downtime by 90%compared to lower-rated alternatives.
Innovation Point 2:Dual-Coil Voltage Flexibility.The contactor supports 230V AC as standard,with an optional 400V AC coil—eliminating the need for separate contactors for different regional power grids.This is critical for multinational plants or those upgrading from 230V to 400V systems;a European manufacturing facility,for instance,used the same 1MRB178009R0002 model across sites in Germany(400V)and France(230V)by swapping coils,simplifying spare parts inventory and saving$2,000 annually.
Innovation Point 3:Low-Copper Loss Design.The contactor’s coil uses high-efficiency copper windings with≤15VA no-load power consumption—30%lower than standard contactor coils(≥20VA).For a plant with 50 contactors running 24/7,this translates to 432 kWh in annual energy savings(worth
51.84at
0.12/kWh)while reducing coil heating,extending coil lifespan by 50%.
h2 Application Cases and Industry Value:
Case 1:Water Treatment Plant Pump Control.A municipal water treatment plant operated 8 75kW water pumps with contactors that failed every 6–7 months due to voltage fluctuations.Each failure disrupted water supply to 10,000 households and incurred
8,000inemergencyrepaircosts.Upgradingto∗∗1MRB178009R0002∗∗contactorswith400Vcoilssolvedtheissue:thecontactor’sstablecoilvoltagetolerance(±15
128,000 in repairs and avoiding 16 water supply disruptions.
Case 2:HVAC System Motor Control.A large shopping mall used 12 30kW HVAC fan motors,relying on contactors that consumed excessive energy(25VA coil power)and overheated in summer.Installing 1MRB178009R0002 contactors reduced coil power use by 40%(to 15VA),cutting annual HVAC energy costs by
3,200.Thecontactor’s−25°Cto+60°Coperatingrangealsowithstoodthemall’sseasonaltemperatureswings,andcompatibilitywithABBTmaxcircuitbreakerscreatedacompleteprotectionsystem—eliminating2annualfanmotorfailures(saving
6,000 in repair costs).
Related Product Combination Solutions:
ABB Tmax XT2N160 Circuit Breaker:Pairs with 1MRB178009R0002–Provides overcurrent and short-circuit protection for motors,creating a complete LV switchgear solution.
ABB PSTX 47-600-70 Soft Starter:Works with the contactor–Reduces motor inrush current(up to 600A),extending motor and contactor lifespan in high-startup applications(e.g.,pumps).
ABB 1SFL556001R1211 Auxiliary Contact:Adds 2 NO/NC contacts to 1MRB178009R0002–Enables remote monitoring of contactor status(e.g.,“on/off”signals to PLCs).
ABB CM-MPS Motor Protection Relay:Complements the contactor–Monitors motor temperature,current,and voltage,triggering the contactor to shut down in case of faults.
ABB 1MRB190000R0001 Coil(400V AC):Optional coil for 1MRB178009R0002–Converts the contactor for 400V AC power grids(e.g.,European industrial sites).
ABB Cable Lugs(6-50mm²):Compatible with the contactor’s terminals–Ensures secure,low-resistance connections for heavy-gauge motor cables.
ABB Control Cabinet(ACS880 Series):Encloses 1MRB178009R0002 and associated components–Provides IP54 protection for outdoor or dusty environments(e.g.,mining sites).
Installation,Maintenance,and Full-Cycle Support:
Installing 1MRB178009R0002 is designed for efficiency:mount the contactor on a flat panel using the integrated screw holes,connect the 3-phase motor cables to the main terminals(labeled L1/L2/L3 for input,T1/T2/T3 for output),and wire the control circuit to the coil terminals.The contactor’s clear terminal labeling and large cable entry holes(up to 50mm²)reduce wiring time by 25%compared to compact contactors.For safety,ensure compatibility with the motor’s rated current(≤100A)and coil voltage(230V/400V)before powering on.
Maintenance of the contactor is minimal:inspect the terminals quarterly for tightness(loose connections cause overheating)and clean dust from the housing with compressed air.The contactor’s front-panel status indicator(where applicable)shows“on/off”status for quick troubleshooting.If replacement is needed,the contactor’s standardized footprint allows direct swapping with old units—no cabinet modifications required.ABB offers a 2-year standard warranty,with an optional 5-year extended warranty for critical applications(e.g.,power plants).
We provide end-to-end support for 1MRB178009R0002,including pre-installation technical consultations to verify motor compatibility,on-site training for electricians,and remote troubleshooting via ABB’s global service network.Our team also offers custom switchgear design services—combining the contactor with circuit breakers,soft starters,and relays—to create tailored motor control solutions for your specific industry needs.
Contact us today to integrate ABB 1MRB178009R0002 into your low-voltage motor control system,ensuring reliable,energy-efficient,and long-lasting operation for your critical industrial equipment.
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