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CHUROD HVDC RELAY

High short-circuit current: H Series

Applications

New Energy Vehicles

Industrial Power

Solar Photovoltaic System

Energy Storage System

Charging Station

Applications in Vehicles

1 Main Relay 2 Pre-charge 3 Quick Charge 4 Normal Charge 5 Auxiliary Relay 6 Charging Station

CHEV-P150D CHEV-P200 CHEV-P250 CHEV-H250 CHEV-H300

CHDR1-D20 CHDR1-D50

CHEV-P100 CHEV-P150D CHEV-P200 CHEV-P250 CHEV-H250 CHEV-H300

CHDR1-20 CHDR1-50 CHEV-P100 CHEV-P150

CHDR1-20 CHDR1-50 CHEV-P60 CHEV-P100 CHEV-H60

CHEV-P100 CHEV-P150D CHEV-P200 CHEV-P250 CHEV-H250 CHEV-H300

Product Series

CHDR1

Model: CHDR1-50

Feature: 500V/50A

Repl: HFE80V-40

Model: CHDR1-20T

Feature: 72V/600V/20A

Repl: HFE80-20B /AEC510

Key features：

1. Epoxy sealed structure

2. Small size with high capacity

（2mm less width than H company）

Product Series

CHEV-P

Model: CHEV-P60 Feature: 750V/60A Repl: HFE82-60B AEVG16012

Model: CHEV-P100 Feature: 750V/100A Repl: HFE82-100D AEVS16012M15

Model: CHEV-P150D Feature: 750V/150A Repl: HFE82-150D AEVS16012M16

Model: CHEV-P200 Feature: 750V/200A Repl: HFE82-200 AEV17012M04

Model: CHEV-P250 Feature: 750V/250A Repl: HFE82-250 AEV17012M04

Key Features

1. Ceramic brazing sealing

2. Hermetically sealed contacts

Product Series

CHEV-H

Model: CHEV-H60 Feature: 750V/60A 4.5kA 10ms Repl: AEVG16012

Model: CHEV-H150 Feature: 750V/150A 6kA 50ms Repl: AEVH94012

Model: CHEV-H250 Feature: 750V/250A 8kA 5ms Repl: AEVA1251

Model: CHEV-H300 Feature: 750V/300A 8kA 5ms Repl: AEVH17012

Model: CHEV-H400 Feature: 1000V/400A 10kA 5ms Repl: P 400A (Latest 5th generation)

Key Features：

1. Ceramic-brazed, hermetically sealed contact chamber

2. Non-polarized coil

3. High short-circuit current

Product Roadmap

H Series Project Timeline

Series Specification Model Phase 3 (DV） Phase 4（PV） Notes

H

60A CHEV-H60 / / Waiting for

specific needs to kick-off

150A CHEV-H150 2021/03/30 2021/06/30

250A CHEV-H250 2020/08/30 2020/11/30

300A CHEV-H300 2020/09/30 2020/12/30

400A CHEV-H400 2021/01/30 2021/04/30

Product Structure

HVDC breaking ability Cavity is filled with gas mixtures containing mainly Hydrogen for electric arc cooling Rated voltage can be 450 either VDC or 750 VDC，max switching voltage is 1500 VDC Explosion-proof; ceramic-metal brazed hermetically sealed contact chamber

Insulating plastic with high temperature resistance separate coil and contacts; enhances the effectiveness of electrical insulation

Magnetic blow-out: permanent magnets achieve cutoff of high load in a small space Ceramic and metal joint

brazing for sealing and to prevent arc leakage; proven reliability

Positive reducing gas pressure in a sealed cavity cools arcs and prevents contact oxygenation stabilizing contact resistance and improving reliability Coil circuit

Contact area Strong reversing ability (Churod IP）

P Series

Product Structure

HVDC breaking ability Cavity is filled with gas mixtures containing mainly Hydrogen for electric arc cooling Rated voltage can be 450 either VDC or 750 VDC，max switching voltage is 1000 VDC Explosion-proof; ceramic-metal brazed hermetically sealed contact chamber High short circuit current（Churod-owned IP）

H Series

Coil circuit

Contact Area Churod-owned IP for short circuit resistant structure; improves closed position holding strength

Ceramic and metal joint brazing for sealing and to prevent arc leakage; proven reliability

Positive reducing gas pressure in a sealed cavity cools arcs and prevents contact oxygenation stabilizing contact resistance and improving reliability

Insulating plastic with high temperature resistance separates coil and contacts; enhances the effectiveness of electrical insulation

Magnetic blow-out: permanent magnets achieve cutoff of high load in a small space

Product Selection 1

Feature Description

Carrying Endurance

Meets the withstand requirements of the following currents：

• The rated current value is calculated according to the rated power of the load, and the

current value of other electrical appliances needs to be considered

• Calculate the peak current according to the peak power of the load and the overload time is

confirmed

Recommended applications - contact make

• Capacitive/active load：Pre-charger、Motor Controller、Charger、Compressor、DC/DC、

Power steering etc.

• Resistive load：PTC、Heating film

Recommended applications - contact break

• Main Relay：Small current/rated current/peak current /10 times short-circuit current cut-off

capacity

• Charge Relay：Charging current/10 times short-circuit current cut-off capacity

• Auxiliary Relay：Rated current/peak current/10 times short-circuit current cut-off capacity

• Pre-charge Relay：Non cut-off capacity needed (still can stand 10 times cut-off)

Short Circuit Current

Main relay and normal charge rely : No fire or explosion after short circuit.

Note: The information above is for technical engineer to choose product model

Product Selection 2

Features Details Standard 1 Standard 2

Safety • Dielectric withstand (DWV)/Insulation resistance

• Flame-retardancy

IEC 60664-1

GB/T 16935.1

IEC61810-1

GB/T 21711.1

Mechanical Performance

• Mechanical endurance

• Vibration; shock; drop

ISO 16750-3 GB/T 28046.3

GB/T 31467

Environment • Temperature & humidity endurance

• Salt spray

ISO 16750-4 GB/T 28046.4

Low voltage power supply

• Long term/short term overvoltage

• Voltage drop/gradient

ISO 16750-2 GB/T 28046.4

EMC • Conducted emission(counter EMF)

• Radiated emissions (RE)

ISO7637-2 GB/T 21437.2

CISPR 25

GB/T 18655, GB/T 18387

Note: The information above is for technical engineer to choose product model

Key Performance

Item CHUROD Other Brands

H P

Max breaking

450VDC ±2500A 1 op 450VDC ±2000A 1op 500VDC ±1800A 1op

750VDC ±2000A one operation / /

Short circuit current

450VDC@8,000A 65ms (without fuse)： No smoke, no fire

450VDC@8,000A 5ms ： No burning nor explosion

450VDC@8,000A 5ms ： No smoke, no fire

450VDC 10000A 5ms（with fuse)： No smoke, no fire

/ /

450Vd.c. 12000A 5ms（with fuse)： No smoke, no fire

/ /

Electrical life

Switching：450Vd.c. ±250A 2000 ops Switching：450VDC ±250A

1000 ops Switching：500VDC ±250A

200 ops

Switching：750VDC ±250A 1000 ops Switching：750VDC ±250A

200 ops /

Temperature rise

Terminal: <45K ; Coil: <55K / /

H250 Performance Comparison

Note: Data of other brands products are from public data sheet

Short Circuit Current 1

Before

Before

After

After

Result: Intact outside No smoke, no fire

450VDC@8kA（no fuse）

Time: ~65ms DATA FROM:STIEE (Shanghai Electrical Apparatus Research Institute)

Before

Before

After

After

抗短路2

Result: Intact outside No smoke; no fire

450VDC@10kA（with fuse）

Time: ~5ms

Short Circuit Current 2

DATA FROM:STIEE (Shanghai Electrical Apparatus Research Institute)

Before

Before

After

After

抗短路3

Result : Intact Outside No smoke, no fire

450VDC@12kA（with fuse）

Time: ~5 seconds

Short Circuit Current 3

DATA FROM:STIEE (Shanghai Electrical Apparatus Research Institute)

Before

Before

After

After

极限分断1

450VDC@2.5kA

Rated voltage：454 VDC Rated current：2.5kA Insulation resistance：>2.2GΩ (@ 500VDC）

Result: Still functional

Max breaking 1

DATA FROM:STIEE (Shanghai Electrical Apparatus Research Institute)

Before

Before

After

After

极限分断2

750VDC@2kA

DATA FROM:STIEE (Shanghai Electrical Apparatus Research Institute) Result: Still functional

Rated voltage：765VDC Rated current：2.05kA Insulation resistance：>2.2GΩ (@500VDC）

Max breaking 2

Thank you, and we welcome your partnership!