In flammable and explosive environments, the explosion-proof distribution box is core equipment ensuring the safe operation of power systems. Its specifications not only determine the applicable scope and performance of the equipment, but also directly affect the safety and stability of industrial sites. Therefore, understanding the specification parameters of explosion-proof distribution boxes is essential for correct selection, proper installation, and long-term operation.RegularoperationCustomer FirstPay Attentionimportant。

One、Explosion-proof distribution boxbasicspecificationclassification

Explosion-proof distribution box的specification Usually CoverfollowingSeveralaspect:

1.Rated Voltage And Current

2.circuitquantity And Configure

3.Explosion-proof Rating And form

4.Ingress Protection (IP) Rating（IP Rating）

5.Material And Structure Type

6.Installation Method And dimension

7.Use Environmentcondition

2、corespecificationparameterdetailed explanation

commonVoltage:220V、380V、400V、660VEtc.；

Rated Current:From10AAchieve630AInvincibleEtc.，based onloadPowerSelect；

TheseIsDistribution BoxInheritEquippedAbilityStrength的foundationparameter，DetermineStable了ItsUpcontrolelectricalequipmentAsQuality。

Explosion-proof distribution box的circuitIndex Usually For1Customer First12Production，common的With:

Unitcircuit、Dualcircuit、MorecircuitUnitOverall；

UpConfigureMaincircuit+controlcircuit、InteractionStrength+lightingcircuitEtc.；

circuitIncreasinglyMore，functionIncreasinglyComplete，butstructureAlsoGreaterComplex，priceRelatedShouldimprovement。

explosion-proofTypeForm:Flameproof Type（Exd）、Increased Safety Type（Exe）、Intrinsically Safe Type（Exi）Etc.；

Gasgroup:IIA、IIB、IIC（IICForMostHighlevel）；

Temperature Class:T1～T6（T6ForMostHightemperature resistantlevel）；

ThesesomeparameterDetermineStable了Distribution Boxsuitable forwhichVariousdangerousEnvironment。For example, Class IIC is suitable for high-hazard gas environments such as hydrogen, and T6 is suitable for high-temperature locations。

commonlevel:IP54、IP65、IP66；

Meaning:First digitIndexDigitTableIndicateDust-prooflevel，Second digitTableIndicateWaterprooflevel；

For Example ，IP65TableIndicate Completely Dust-proof， And UppreventionComeSelfanyAccidentAspectToward的SprayLevel，SuitableOverallOutdoor Or humidlocationUse。

MaterialSelect:Cast Aluminum Alloy、Carbon Steel、Stainless Steel（Such as304、316 Stainless Steel）；

Structure Type:Wall-mounted、Floor-standing、Flush-mounted；

Stainless SteelMaterialsuitable forcorrosionPerformanceEnvironment，Cast AluminumMateriallightweight And Heat DissipationBrilliant，Carbon SteelcostCost-effectiveLowbutDemandStriveAnti-corrosionprocessing。

Installation Method:BrightInstallation、darkInstallation、SupportRackInstallation；

dimensionrange:according tocircuitquantity And functionConfigure，dimensiondifferenceExcellentCost-effectiveGreater，commonFor300×400mmCustomer First800×1000mm；

DemandStructureOverallon-siteAerospaceArea、power distributionsystemLayoutAdvanced reasonableSelection。

temperaturerange:20℃～+60℃（PartCustomizationProductUpSuitableShouldGreaterLow Or GreaterHigh TemperatureDegree）；

humidity:≤95%RH（nonCondensation）；

Altitude: Generally ≤2000Rice（Special RequirementscustomizableHighRawTypeProduct）；

ThesesomeparameterDetermineStable了equipmentAbilitynoSuitableShouldSpecialStable的Environmental Conditions。

Three、TypicalTypeExplosion-proof distribution boxspecificationIndicateAnalysis（Power SupplyReference）

|Project|parameter|

|||

|Model|BXMD63A/4circuit|

|explosion-proofTypeForm|Flameproof Type（ExdIIBT6）|

|Rated Voltage|380VAC|

|Rated Current|63A|

|circuitIndex|4circuit（3Main+1Control）|

|Ingress Protection (IP) Rating|IP65|

|Material|Stainless Steel304|

|Installation Method|Wall-mounted|

|dimension|500×600×200mm|

|Use Environment|20℃～+55℃，≤95%RH|

4、Such aswhataccording toRequirementsSelectsuitable的Explosion-proof distribution boxspecification？

1. Clarify the service environment: whether it is an explosive gas atmosphere？IsnoStoreinDust？Isnohumid Or corrosion？

2.DesignCountloadRequirements:TotalPower、Rated Voltage、Current And circuitquantity；

3.ConfirmExplosion-proof Rating:based onNational Standard（Such asGB3836）Selectsuitable的explosion-proofTypeForm And level；

4.ConsiderInstallationcondition:AerospaceAreaGreaterSmall、Installationposition、Isnoneedremotecontrol Or IntelligentWeldingReputation；

5.SelectTrulyRegulationsManufacturer:ensureProductThroughCountryExplosion-proof Certification（CNEX） And RelatedPay AttentionElectricalStandardcertification。

Five、conclusion

Explosion-proof distribution boxspecificationsis itssafetyperformance And applicablePerformance的directlyStructureOn-site。In high-risk industrial environments, only by fully understanding and reasonably selecting the various specifications of distribution boxes can safe, stable, and efficient power control be truly achieved。Whether in chemical, petroleum, natural gas, or dust-operating locations, scientific selection, standardized installation, and regular maintenance are key to ensuring the long-term reliable operation of explosion-proof distribution boxes。

Selecting the appropriate explosion-proof distribution box is not only related to the operating efficiency of the equipment but also to personnel safety and production continuity。In the face of explosion risks, every specification detail cannot be ignored。