TeSys circuit breaker briefing is designed to enable you to choose the right motor circuit breaker for your customer. For more details: http://www.schneider-electric.com/en/product-subcategory/4240-motor-circuit-breakers-and-switches/?filter=business-4-low-voltage-products-and-systems&parent-category-id=4200

1. Property of Schneider Electric
TeSys circuit breaker briefing
Simply reliable. Simply available.
December 2017

2. • Introduction: How to choose the right
circuit breaker
 What is a motor circuit breaker?
 What is required to chose a circuit
breaker?
 How to choose a Schneider Electric
TeSys circuit breaker
• Where to find further details
• Quiz
Table of content
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3. “I have this breaker to change, what should I take?”
This briefing is designed to enable you to choose the right motor circuit breaker for your
customer.
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You will first get to
know:
“What is a motor
circuit breaker?”
You will then
understand:
“What is required to
choose a motor
circuit breaker?”
Finally you will
learn:
“How to choose a
TeSysTM motor
circuit breaker.”

4. Main functions
• Ensures short-circuit protection (to protect circuit
cables and motor coils)
• Can ensure thermal protection (to protect motor
and cables from overload)
Secondary functions
• Has the ability to switch on/off the current of the
electrical circuit (manual operation)
• Can operate thousands of times as a switch
What is a motor circuit breaker?
A motor circuit breaker is:
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5. What is a motor circuit breaker?
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Main
power supply
Auxiliary contacts
circuit (as an option)
Thermal overload
adjustment setting
Manual
pushbutton
for on/off
Power circuit

6. 1. What is the nominal current of the motor?
• This parameter is linked to the motor power
and is key to perfectly adjust the thermal
protection of the breaker to the motor
2. What is the short-circuit current at installation
point?
• This current is linked to the power supply
2 Key questions to ask to choose a motor breaker
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The breaking capacity value of the motor
circuit breaker must exceed the short
circuit current at installation point,
otherwise protection against short circuit
is not ensured.

7. Motor protection offer
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Motor
protection
TeSys GV3 TeSys GV4TeSys GV2
0.1 to 32 A/18 kW Up to 80 A/37 kW Up to 115 A/55 kW
TeSys GV7
Up to 220 A/110 kW

8. GV2: 0.1 to 32 A/18 kW
GV3: up to 80 A/37 kW
• TeSys GV2L/GV3L
‒ Magnetic protection only
• TeSys GV2ME-GV2P/GV3P
‒ Magnetic and Overload protection (class 10)
TeSys GV2/GV3 offer
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TeSys GV3LTeSys GV2L/LE
TeSys GV2ME TeSys GV3P TeSys GV2P

9. Up to 115 A/55 kW
• TeSys GV4L
‒ Magnetic protection only
• TeSys GV4P
‒ Magnetic and Overload protection (class 10 & 20) +
phase loss + phase unbalance
• TeSys GV4P multifunction
‒ Magnetic and Overload protection (class 10 & 20) +
phase loss + phase unbalance + ground fault + jam +
long start
‒ With smartphone application (NFC techno) to allow
settings, reading …
‒ Alarming and fault differentiation with SDx add-on
module
TeSys GV4 offer
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Pre-mounted
Rotary handle
version
GV4P Advanced
+ SDx module
Pre-mounted
Toggle version

10. Up to 220 A/110 kW
• TeSys GV7 RE/RS
‒ Magnetic and Overload protection (class 10)
TeSys GV7 offer
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11. Usual values of required parameters
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The nominal current of the motor Short-circuit current at installation point
Most applications use motors with a nominal
current < 15 A
Most application are < 25 kA
Can go up to 150 A or more
(e.g. ≈ 2000 A for wind turbine application)
Can go up to 50 kA or more in some big
industrial installations when motors are close
to transformers

12. • Click here to find info on SE.com
• Click here to find Motor circuit breaker
on SE.com
• Click here to access our Digicat
• Click here to access to CAD files
• Click on the link below for FAQs
(frequently asked question)
Where to find details
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13. Property of Schneider Electric |
Quiz
Based on what
you’ve learned so
far, try to answer to
this quiz
?
Page 13
Q1
What a circuit breaker is designed to do?
Q2
Cite another function for circuit breaker
Q3
What are the 2 key questions to ask to choose a motor breaker?
Q4
What is the protection of a TeSys GV2L/GV3L ?
Q5
What is the protection of a TeSys GV7 RE/RS?

14. Property of Schneider Electric |
Quiz answers
Q1
What a circuit breaker is designed to do?
A contactor is designed to ensure short-circuit protection
Q2
Cite another function for circuit breaker
The circuit breaker has the ability to switch on/off the current of the
electrical circuit (manual operation)
Q3
What are the 2 key questions to ask to choose a motor breaker?
1 - What is the nominal current of the motor?
2 - What is the short-circuit current at installation point?
Q4
What is the protection of a TeSys GV2L/GV3L ?
It’s only magnetic protection
Q5
What is the protection of a TeSys GV7 RE/RS?
Magnetic and overload protection (class 10)
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Answers

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Thank you