G50HS DCNLEV50 50A 1NO High Voltage EV DC Contactor
G50HS DCNLEV50 50A 1NO High Voltage EV DC Contactor
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G50HS DCNLEV50 50A 1NO High Voltage EV DC Contactor
G50HS DCNLEV50 50A 1NO High Voltage EV DC Contactor
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G50HS DCNLEV50 50A 1NO High Voltage EV DC Contactor

Electricity Type:DC
Brand Name:NewTrend or OEM
Place of Origin:China
Model Number:G50HS
Phase:1
Main Circuit Rating Current:50A
Contact Voltage Rating:12 – 1000V DC
Coil Voltage:12V DC, 24V DC
Rated Current:50A
Contact Form:SPST-NO
Number of Pole
Main Circuit Rating Voltage
SKU: 62582004038 Category:
Description

G50H DCNLEV50 50A 1NO DC High Voltage EV  Relay 12V to 750V or 900V DC Contact 12Vdc 24Vdc Coil 50A High Voltage DC Contactor

 

50A High Voltage DC Contactor Features:

  • DC 12-1000V rated load voltage of contact circuit.
  • SPST-NO of contact form, 12 volt, 24 volt coil for selecting.
  • Main contact voltage drop at 50A, not above 100mV.
  • The connection of contact and coil need to be nonpolarity.
  • Efficient coil, retentive power is only 2-2.3W, counter electromotive force is 0V.
  • The joint way of the coil is very convenient.
  • The coil has no counter force of electromagnetism.
  • Compare to the similar products, this product is smallest and lightest.

50A High Voltage DC Contactor Specifications:

Model G50H G100H G150H G200H G250H G300H
Rated Current 50A 100A 150A 200A 250A 300A
Contact type SPST NO
Contact rated voltage & current 12-1000Vdc
Coil voltage 12Vdc, 24Vdc, 48Vdc
Coil power consumption ≤6W
Output Connectors M5 Bolt and Lockwasher Connections
Connectors Wire Leads for Control Circuit
Pickup voltage ≤75%Us
Release voltage ≤7Vdc
Pickup time ≤30ms
Release time ≤20ms
Electric life (450Vdc) ≥5000 times
Electric life (750Vdc) ≥2000 times ≥1000 times
Electric life (900Vdc) ≥2000 times ≥1000 times
Ingress Protections IP67
Working temperature -40 to 85°C

50A High Voltage DC Contactor Electric Diagram:

50A High Voltage DC Contactor Dimension:

 

Additional information
Weight 2 kg
Dimensions 25 × 25 × 25 cm
Number of Pole

1
Main Circuit Rating Voltage

12V, 24V
Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for G50HS DCNLEV50 50A 1NO High Voltage EV DC Contactor.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

AC-1 / AC-3 Duty

How to calculate contactor rating based on motor power and utilization categories (AC-1 vs AC-3 vs AC-4)?

A

AC-3 rating applies to standard squirrel-cage motor starting and stopping during normal run (starting current 5–7x In). For non-inductive or purely resistive heating loads, use the higher AC-1 rating. For severe inching, jogging, and plugging applications (AC-4 duty), derate the contactor or upsize by 1 to 2 frame sizes to prevent contact erosion.

Coil Voltage Selection

How to choose the correct control coil voltage, frequency, and electronic wide-voltage options?

A

Standard AC coils include 24V, 48V, 110V, 220V/230V, 380V at 50/60Hz. For DC control loops or PLC outputs, specify DC coils or electronic wide-range AC/DC coils (e.g. 100V–250V AC/DC) which feature built-in surge suppression, low holding power consumption, and immunity to voltage dips.

Overload Coordination

How to size and coordinate the matching thermal overload relay (TOR) for Type 2 protection?

A

Select a thermal overload relay whose current setting range straddles the motor full-load current (FLA). Set the dial precisely to 1.0x motor nameplate FLA. For IEC 60947-4-1 Type 2 coordination, pair the contactor and relay with backed-up upstream fuses or fast-acting MCB/MCCB to prevent welding under fault conditions.

Auxiliary & Interlocks

What auxiliary contact blocks and mechanical interlocks can be added for motor reversing?

A

Units feature built-in 1NO or 1NC auxiliary contacts, expandable with top-mounted 2-pole or 4-pole auxiliary contact blocks (F4 / AX) and pneumatic timer delay blocks. For forward/reverse motor starters or star-delta starter assemblies, add side-mounted mechanical interlock units (MI) with electrical interlocking.

Ambient & Altitude Derating

How do ambient temperature and installation altitude affect contactor performance?

A

Standard ratings are calibrated for -5°C to +40°C. For ambient temperatures exceeding 55°C or altitudes above 2000m (where reduced air density diminishes heat dissipation and dielectric insulation), derate operational current by 2% per 100m above 2000m and verify insulation voltage limits per IEC standards.

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