What is the difference between CV and CHV sub-groups?

The CV/CHV series consists of two modular-design sub-groups: CV sub-group (CV-80, CV-160) : 1.14 kV low-voltage, standard industrial/mining motor drives, 1 million mechanical life. CHV sub-group (CHV-400/3.3, CHV-450/1.14, CHV-450/3.6) : 3.3 and 3.6 kV medium-voltage AND high-fault-current protection (especially CHV-450/1.14 at 26000 A). 0.3 million mechanical life indicates reduced operation frequency — emergency-cut-off focused. Selection: standard frequent-switching motor drive → CV; high-fault-current protection or medium-voltage → CHV.

Why is CHV-450/1.14's 26000 A limited breaking capacity so high?

The CHV-450/1.14's 26000 A limited breaking capacity is approximately 5-10 times that of normal AC vacuum contactors. This serves: Large transformer rear short-circuit — Safe interruption of fault current at large power transformer output Lightning strike protection — Managing transient overcurrents in high-voltage systems Industrial arc furnace protection — Arc furnace startup and fault currents Compensation capacitor fault protection — Inrush management during capacitor failure This high capacity reduces mechanical life (0.3 million cycles) because the contact structure is optimized for high fault current — this contactor is used infrequently but with high reliability.

Usage difference between CHV-450/1.14 and CHV-450/3.6?

The two models share 450 A capacity but differ in 26000/13000 A limited breaking capacity: CHV-450/1.14 : For 1.14 kV systems (mining, low-voltage industry). 26000 A highest limited breaking capacity — for low-voltage but high-fault-current applications. CHV-450/3.6 : For 3.6 kV systems (medium-voltage industry, railway, metallurgy). 13000 A limited breaking capacity — acceptable protection level at medium voltage. Clear selection by system voltage — they are not interchangeable.

B2B · PRODUCT SERIES · GLVACREF · IMB · GLVAC · CV-CHV

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GLVAC · PRODUCT SERIES

GLVAC CV / CHV Series

1.14 kV to 3.6 kV modular design AC vacuum contactor — wide range from 80A to 450A

The GLVAC CV/CHV Series offers different voltage and current combinations under a single family using a modular design approach. The CV sub-group (CV-80, CV-160) is designed for 1.14 kV mining and low-voltage industrial applications; the CHV sub-group (CHV-400/3.3, CHV-450/1.14, CHV-450/3.6) for medium-voltage and high-fault-current protection applications.

The CHV-450/1.14 model is particularly notable with its 26000 A limited breaking capacity — approximately 5-10 times the industry average, providing safe interruption in scenarios like large transformer rear short-circuit faults. The 0.3 million mechanical life in CHV series indicates reduced operation frequency (emergency-cut-off focused).

Typical applications: mining (CV-80/1.14, CV-160/1.14), petrochemical medium-voltage drives (CHV-400/3.3), high-fault-current industrial circuits (CHV-450/1.14), railway and metallurgy (CHV-450/3.6).

Mining low-voltage (CV sub-group)Petrochemical medium-voltage drives (CHV-400/3.3)High-fault-current industrial circuitsRailway power distribution (CHV-450/3.6)Metallurgy arc furnace drivesLarge transformer protection circuits

01type: Modüler tasarım AC vakum kontaktör
02Sealing: Vakum yalıtımlı kontak
03frequency: AC 50 Hz
04Current Range: 80 A – 450 A (5 model)
05Voltage Rating: 1.14 / 3.3 / 3.6 kV
06electrical life: 0.3 – 1 milyon çevrim (model dependent)
07limited breaking capacity: 26000 A (CHV-450/1.14)

CV / CHV Series Series Contactor Models

Sorted by current rating (150A → 1000A)

5 MODELS

MODEL↑ current	sub group	rated making a	rated current a	rated breaking a	rated voltage kv	mechanical life m	limited breaking a
CHV-400/3.3	CHV	4000	400	3200	3.3	1	4000
CHV-450/1.14	CHV	4500	450	3600	1.14	0.3	26000
CHV-450/3.6	CHV	4500	450	3600	3.6	0.3	13000
CV-160/1.14	CV	1920	160	1600	1.14	1	3000
CV-80/1.14	CV	980	80	800	1.14	1	2000

TECHNICAL DIFFERENTIATORS

Why CV-CHV Series?

03 · CATEGORIES

High Fault Current Protection (26000 A)

CHV-450/1.14 — 26000 A
→ 5-10x industry average.
Transformer, arc furnace, lightning protection
→ Critical safety.

Vacuum-Insulated Structure

Arc interruption in vacuum
→ Safe interruption at high fault current.
Sealed housing
→ Resistant to industrial and mining environments.

Modular Design (CV + CHV)

CV + CHV two sub-groups
→ Standard and high-protection applications.
1.14 / 3.3 / 3.6 kV wide range
→ Different system voltages.

DATASHEET · GUIDE · APPLICATION NOTE

CV-CHV Series — Technical Resources

05 · FILES

CV-80/1.14 Datasheet

CV-80/1.14 DatasheetSOON

CV-160/1.14 Datasheet

CV-160/1.14 DatasheetSOON

CHV-400/3.3 Datasheet

CHV-400/3.3 DatasheetSOON

CHV-450/1.14 Datasheet

CHV-450/1.14 DatasheetSOON

CHV-450/3.6 Datasheet

CHV-450/3.6 DatasheetSOON

FREQUENTLY ASKED QUESTIONS

About the CV-CHV series

03/03

RELATED INSIGHTS · CV-CHVREF · IMB · PUB · 02 ENTRIES

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RELATED INSIGHTS

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02 ENTRIES

// end of index · 02 / 02

GLVAC CV / CHV Series

Why CV-CHV Series?

High Fault Current Protection (26000 A)

Vacuum-Insulated Structure

Modular Design (CV + CHV)

CV-CHV Series — Technical Resources

CV-80/1.14 Datasheet

CV-160/1.14 Datasheet

CHV-400/3.3 Datasheet

CHV-450/1.14 Datasheet

CHV-450/3.6 Datasheet

About the CV-CHV series

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Yüksek Arıza Akımı Korumalı Kontaktör Seçimi

Orta Voltaj AC Kontaktör Seçim Rehberi (1.5-12 kV)

GLVAC CV / CHV Series

Why CV-CHV Series?

High Fault Current Protection (26000 A)

Vacuum-Insulated Structure

Modular Design (CV + CHV)

CV-CHV Series — Technical Resources

CV-80/1.14 Datasheet

CV-160/1.14 Datasheet

CHV-400/3.3 Datasheet

CHV-450/1.14 Datasheet

CHV-450/3.6 Datasheet

About the CV-CHV series

01What is the difference between CV and CHV sub-groups?

02Why is CHV-450/1.14's 26000 A limited breaking capacity so high?

03Usage difference between CHV-450/1.14 and CHV-450/3.6?

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Yüksek Arıza Akımı Korumalı Kontaktör Seçimi

Orta Voltaj AC Kontaktör Seçim Rehberi (1.5-12 kV)