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EVM-400 High Voltage DC Contactor

Technical product information for engineering review. Request datasheet, samples, pricing, lead time, or a cross-reference recommendation for this part.

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EVM-400 High Voltage DC Contactor

EVM-400 High Voltage DC Contactor

$30.00

EVM-400 High Voltage DC Contactor for engineering selection. Coil 12V DC / 24V DC. 1 Form A (SPST-NO) contact.

Sample, Datasheet & Engineering Support

  • Model: EVM-400
  • Purchase path: Buy sample online
  • Production projects: RFQ recommended for final electrical confirmation.

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Primary path is RFQ. Use Buy Sample only for engineering validation quantities.

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SKU: EVM-400 Categories: ,
Model detail

EVM-400 product details, applications and specifications

Use this family for DC power-path control where arc suppression, contact life, coil control and thermal design must be confirmed against the real load profile. The table below summarizes the key selection points; use the model datasheet for dimensions, ratings and ordering confirmation.

EVM-400 High Voltage DC Contactor
High Voltage DC Contactor principle illustration
1Battery / DC bus
2Coil drive
3Main contact chamber
4Load / inverter / charger

Main specifications for RFQ

Public model
EVM-400
Product family
EVM Ceramic High Voltage DC Contactors, High Voltage Reed Relays
Contact form
1 Form A
Insulation resistance
1000 (1000VDC)
Datasheet
Available as individual PDF for this model

Specifications above are extracted from the live product content for this model. Confirm final ratings, drawings and ordering code through the PDF datasheet or RFQ before production use.

Datasheet-style view

EVM-400 technical data by section

Grouped specification blocks make this model page easier to scan for engineering selection, RFQ review and sample validation.

Electrical ratings

Application voltage
High-voltage DC platform; model-specific rating by datasheet
Current range
Model-specific continuous and making/breaking current
Coil voltage
12V / 24V / custom options depending on series

Contact / output data

Auxiliary contact
Available on selected models for state feedback

Mechanical & mounting

Mounting
Panel, chassis or busbar integration depending on model

Ordering / RFQ notes

  • Confirm exact ordering code, coil voltage, contact form and termination style before purchase.
  • Share load voltage/current, load type, duty cycle, ambient temperature and isolation requirement in RFQ.
  • Use the linked PDF datasheet for package drawing, dimensions and final rating limits.
  • For DC contactors, confirm carry current separately from make/break current, including voltage, load type, polarity, pre-charge and expected electrical life.
  • Follow the datasheet for coil suppression/economizer wiring; do not add external suppression if the model prohibits it.
  • Product family context: High Voltage DC Contactor.
Engineering selection notes

Avoid common specification mistakes

These notes keep product pages useful for engineers while avoiding overclaims. Final ratings remain model- and application-specific.

Carry current is not make/break currentContinuous current, making current and breaking current depend on DC voltage, time constant, polarity, pre-charge strategy and expected electrical life. Use the datasheet limits and RFQ review for the real load profile.
Pre-charge and polarity matterDC-link capacitors usually need a pre-charge path. Many DC contactors are polarity-sensitive for interruption, so bidirectional or reverse-current systems require explicit confirmation.
Follow coil suppression instructionsDo not add external flyback diodes or suppression to internally economized/suppressed contactor coils unless the contactor datasheet approves it; delayed release can reduce interrupt capability.

Typical applications

  • EV battery disconnect and pre-charge systems
  • Charging piles and DC fast charging
  • Energy storage systems
  • Industrial DC power and safety isolation

What to confirm before purchase

  • Voltage, current, load type and safety margin
  • Contact form, coil voltage and drive circuit
  • Mounting, wiring, environmental and compliance requirements
  • Sample validation quantity and production forecast
FAQ

EVM-400 ordering FAQ

These visible answers mirror the FAQ structured data and clarify what buyers should confirm before sample approval or production ordering.

What should be confirmed before ordering EVM-400?

Confirm the exact ordering code, coil or control voltage, contact form or output type, voltage/current rating, mounting style, environmental conditions and validation quantity.

Is a PDF datasheet available for EVM-400?

Yes. The model page links to an individual PDF datasheet for engineering review and RFQ confirmation.

What applications is this product family used for?

EV battery disconnect and pre-charge systems, Charging piles and DC fast charging, Energy storage systems, Industrial DC power and safety isolation.

Recommended next steps

EVM-400 selection actions

Use these internal paths to move from overview to model comparison, datasheet review and RFQ submission.

Download model datasheetReview ratings, package drawing and ordering detailsRequest engineering quoteSend load, voltage, quantity and validation requirementsCompare all modelsBrowse the complete model index and related seriesView EVM Ceramic High Voltage DC Contactors familyReturn to category guide, comparison and representative modelsFamily catalog PDFOpen the product-family catalog for broader selection

Download EVM-400 Datasheet Request quote for this model Compare all models

English engineering resources

Datasheet, catalog and RFQ support

Download the original source datasheet when available; otherwise use the checked generated English datasheet, family catalog, or RFQ path.

Download English Datasheet Family Catalog Complete Catalog Request Engineering Quote

Original source PDFs are preferred when available. Generated English PDFs are used only when no original source PDF is found; final ratings, drawings and application suitability are confirmed by RFQ.

Description

EVM-400

High Voltage DC Contactor, 400A / 1000VDC, 1 Form A

The EVM-400 is a high-voltage DC contactor from SHR’s DC contactor series, designed for 400A / 1000VDC switching in energy storage, EV, and industrial power systems. Special Epoxy seal,No arc leakage, Make sure no fire an burst Compact structure,low noise The mixed gas mainly filled with hydrogen can prevent the.

Key Specifications

Contact form 1 Form A
Contact rated load 400 A
Max switching voltage 1000 VDC
Max breaking current 2500A(320V DC) 1 times
Current tolerance 600A: 20min；1200A: 30s；3000A: 0.6s
Contact resistance ≤1@20A
Mechanical durability 3&times;10<sup>5</sup> operations
Operate time (at rated voltage) 30Max.
Release time (at rated voltage) 10Max.
Insulation resistance 1000 (1000VDC)
Dielectric withstand (open contacts) 3000VAC 50 Hz/60 Hz
Dielectric withstand (contacts to coil) 4000VAC 50 Hz/60 Hz
Operating temperature -40～+85
Load outlet form Internal Thread/External Thread
Weight 700 g
Coil options
Coil 12V DC (operating range ±20%Us, pickup 9Vmax, dropout (2～5)V)
Coil 24V DC (operating range ±20%Us, pickup 18Vmax, dropout (3～9)V)

Key Highlights

  • Special Epoxy seal,No arc leakage, Make sure no fire an burst
  • Compact structure,low noise
  • The mixed gas mainly filled with hydrogen can prevent the
  • 400A 85℃ long time current carrying capacity
  • The insulation resistance reaches 1000MΩ（1000VDC）

Applications

  • Battery energy storage systems
  • Electric vehicle power systems
  • Photovoltaic inverters
  • Industrial DC power distribution
  • EV DC fast charging

Specifications per the EVM-400 datasheet (SHR). Submit an RFQ to confirm coil voltage and configuration.

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