PowerGridSourceElectrical equipment, switchgear, transformers, and power distribution components
Grt508bx 120A Latching Relay for 50~60kVA Three-Phase Unbalance and Commutation Switch
Electrician And Automation Instrument

Grt508bx 120A Latching Relay for 50~60kVA Three-Phase Unbalance and Commutation Switch

Electrical detail pages should help buyers judge whether one component fits the wider project scope, standards path and protection role before tender RFQ.

Quote on request

Product sourcing profile

CategoryElectrician And Automation Instrument
Inquiry workflowPlatform RFQ workflow
AvailabilityInquiry required
Updated2026-05-05

Product introduction

Home Electrical & Electronics Relay & ill deciding? Get samples of $ ! US$ 5/Piec. Power. Grid. Source curates RFQ-led product discovery for buyers looking for transformers options. The page is organized around specification review, application fit, and inquiry-ready comparison.When evaluating this product, buyers should confirm application fit, required performance range, installation environment, lead time, documentation, and whether the supplier can support OEM or project quotations. Current vertical focus: industrial electrical equipment sourcing, power distribution component discovery, and rfq-ready grid supply platform.

Grt508bx 120A Latching Relay for 50~60kVA Three-Phase Unbalance and Commutation Switch is grouped under Electrician And Automation Instrument and should be used as a product-first sourcing reference before moving into RFQ.

Visible signals on the page include Category: Transformers; Brand: Zhejiang Great Electrical Co., Ltd.. If the public specs are still thin, add model, material, connection and quantity details in the RFQ.

The current price state is Quote on request, the quantity reference is Quantity by inquiry, the delivery context is to be confirmed by inquiry, and the lead-time reference is Lead time by inquiry.

For project or bulk purchasing, include application fit, quantity band, installation environment and required delivery timing before supplier outreach.

Selection and RFQ points

Review material fit, application context, alternatives and RFQ detail before comparing related product paths.

Material fit Electrician Automation Instrument

Confirm material, size, finish, tolerance and processing needs before price comparison.

Application fit application, operating environment and usage frequency

Add the target application and operating context so related products can be compared correctly.

Alternative path Industrial Electrical Equipment

Use nearby materials, equipment types or category pages when this record is close but not exact.

RFQ detail Quantity, destination, timing

Include quantity, destination, target delivery window, packaging and any technical constraints.

PowerGridSource quality checks

Project contextCheck voltage class, installation type and project role before pricing discussion.

Use this check before moving from discovery into product comparison or RFQ submission.

Protection scopeConfirm whether protection, metering or switching requirements actually match this product.

Use this check before moving from discovery into product comparison or RFQ submission.

Tender detailBring standards, load profile and site conditions into the RFQ path.

Use this check before moving from discovery into product comparison or RFQ submission.

Key specifications

CategoryTransformers
Brand
Unitset
Action PrincipleElectromagnetic Type
AppearanceShell Color Black
ApplicationElectrical and power distribution
CategoryTransformers
CoilRated Voltage of Coil 9VDC
Coil Resistance36Ω±10% Customized
Coil TypeSingle Coil and Double Coil Optional
Contact MaterialSilvery Alloy
Contact Resistance≤1.0mΩ In accordance with the voltammetry test, 10A constant current is applied
Contact-Coil4000VAC 1min
CustomizationAvailable
Dielectric StrengthBetween , arcing or insulation breakdown is allowed during the dielectric withstand test. The leakage current shall not be greater than 1mA
Electrical Life1X10 4 OPS On the condition of 120A/250VAC(resistive load, frequency reference standard), the number of continuous actions.
Electricity TypeAc
Feature Highlightsdigital
Humidity45%-90%RH
Impulse Width100ms
Initial Operating VoltageClosing ≤12VDC
Insulation Resistance≥100MΩ 500VDC
LoadHigh Power Relay
Max. Switching Current120A
Max. Switching Power30000VA
Max. Switching Voltage250VAC
Mechanical Life1X10 6 OPS The number of consecutive actions under no or light load conditions
Mechanical Shock500m/S 2 11MS After the test, there should be no loose structure or mechanical damage, and the state of the relay can't be changed.
Mechanical Vibration10~55HZ Single amplitude 0.35mm After the test, there should be no loose structure or mechanical damage, and the state of the relay can't be changed.
Model NO.GRT-508BX120A
Number of Pole1
Operating TimeClosing ≤6.0ms single coil 48V drive
OriginChina
PerformanceRated Working Temperature-40ºC~70ºC At the limit temperature, it is required to work at the maximum operating frequency for 72H
Phase1
Power8w
Product TitleGrt508bx 120A Latching Relay for 50~60kVA Three-Phase Unbalance and Commutation Switch
Protective CharacteristicsEnclosed Relay
Rated Load (Resistive)120A/250VAC
Rated Power of Coil8W/16W
Release≤12VDC
SizeMiniature
Specification120A-1A
Switching Current120A
TheoryElectromagnetic Relay
TrademarkGRT
Transport PackageCarton Packing
TypeElectric Parameter Relay
US$1.50-5.00100 Pieces (MOQ)
UsageHousehold Appliances Relay, Switich
Voltage48v

Product sourcing keywords

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Related keyword paths

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SOURCING DECISION BRIEF

Grt508bx 120A Latching Relay for 50~60kVA Three-Phase Unbalance and Commutation Switch sourcing decision brief

Electrical detail pages should help buyers judge whether one component fits the wider project scope, standards path and protection role before tender RFQ.

Category
Transformers
Price status
Quote on request
Inquiry model
Structured product RFQ with quantity, destination and technical requirements.
Availability
Confirm by inquiry
Sourcing lens
Project-fit electrical decision
Primary compare
Category, Brand, Unit
Adjacent category
Transformers and Substation Equipment
Next route
Medium Voltage Distribution Projects
Buyer checklist
  • Project role: Check where this item sits inside the wider distribution, retrofit or protection scope.
  • Standards fit: Compare voltage class, installation type, standards and protection scope before supplier outreach.
  • Tender handoff: Carry load profile, site conditions and compliance constraints into the RFQ path.
How should buyers use this PowerGridSource detail page?

Use the detail page to confirm whether one electrical component fits the wider project scope before opening a tender RFQ.

What should buyers compare first?

Compare voltage class, standards fit, project role and the nearest solution or procurement route.

PowerGridSource related sourcing paths

PowerGridSource procurement phrases

PowerGridSource project-fit checks

Voltage Rating Confirm Voltage Rating before comparing offers or moving the inquiry forward.
Current Rating Confirm Current Rating before comparing offers or moving the inquiry forward.
Protection Grade Confirm Protection Grade before comparing offers or moving the inquiry forward.
Installation Type Confirm Installation Type before comparing offers or moving the inquiry forward.
Application route Use Application to compare adjacent options instead of relying on one broad title match.
Country route Use Country to compare adjacent options instead of relying on one broad title match.

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Electrical project sourcing method

Project scopeRead the product inside the wider electrical project scope, not as a disconnected part.
Standards fitUse voltage class, installation type and protection scope to narrow comparisons.
Tender framingSend load profile, standards and installation context through the RFQ path.

Procurement notes

If visible specifications are still thin, add model, material, interface, quantity, application fit, destination and target lead time before comparing quotes.

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