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TGM1BX-125L/3340 32A AC220V(U) Molded Case Circuit Breaker

Name: TGM1BX-125L/3340 32A AC220V(U) Molded Case Circuit Breaker
SKU: ICX-6988497-699510

Brand:

TENGEN

Series:

TGM1BX

Protection Type:

Power distribution protection

How It Works:

Manual

Frame Current:

125A

Tripping Mode:

Thermal Magnetic

Protection Function:

Wiring Method:

Front panel wiring

Poles:

Rated Voltage:

400VAC

Installation:

Fixed

Trip Unit:

Compound release

Rated Current of Release:

32A

Breaking Capacity:

25KA

Model:

TGM1BX-125L/3340 32A AC220V(U)

Order Number:

ICX-6988497-699510

Description:

TENGEN Molded Case Circuit Breaker TGM1BX-125L/3340 32A AC220V(U),LI,Distribution Protection,25KA,125A,Fixed,Manual,3P

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Product parameters
Series Overview

Product parameters

Product attributes	Attribute value	Filter product attributes
Brand：	TENGEN
Series：	TGM1BX
Appendix：	Shunt release, auxiliary contact
Protection Type：	Power distribution protection
How It Works：	Manual
Frame Current：	125A
Tripping Mode：	Thermal Magnetic
Protection Function：	LI
Wiring Method：	Front panel wiring
Poles：	3P
Rated Voltage：	400VAC
Installation：	Fixed
Trip Unit：	Compound release
Rated Current of Release：	32A
Breaking Capacity：	25KA

Products with the same attribute : 0

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Series Overview

Outline

● The TGM1BX series Molded Case Circuit Breakers (hereinafter referred to as the circuit breakers) are one of the new types developed by our company using internationally advanced design technology. Their rated ultimate short-circuit breaking capacity (Icu) is classified as L-Type (Standard) and M-Type (Higher). Featuring compact size, high breaking capacity, short arcing distance, and vibration resistance, this product is ideal for use in power distribution meter boxes. With a rated insulation voltage of 800V, it is suitable for circuits with AC 50/60Hz and rated operational voltage up to 690V, used for infrequent switching of circuits and infrequent starting of motors. This series of circuit breakers is equipped with overload and short-circuit protection devices to protect lines and power supply equipment from damage.

● This series of circuit breakers can be installed vertically (upright) or horizontally (sideways).

● Product Compliance:

● IEC 60947-1 and GB/T 14048.1 "Low-voltage switchgear and controlgear - Part 1: General rules".

● IEC 60947-2 and GB/T 14048.2 "Low-voltage switchgear and controlgear - Part 2: Circuit-breakers".

● This product has passed the "CCC" certification.

Normal Service and Mounting Conditions

● Ambient Air Temperature:

● For TGM1BX-125/160/250 frame sizes, the ambient air temperature shall not exceed +40℃, with a lower limit of -5℃. When the ambient air temperature exceeds +40℃ or falls below -5℃, the tripping characteristics and temperature rise of the product are affected by the ambient temperature; design or usage requires consultation between the manufacturer and the user.

● For TGM1BX-400/630 frame sizes, the ambient air temperature shall not exceed +30℃, with a lower limit of -5℃. When the ambient air temperature exceeds +30℃ or falls below -5℃, the tripping characteristics and temperature rise of the product are affected by the ambient temperature; design or usage requires consultation between the manufacturer and the user.

● Altitude: The altitude at the installation site shall not exceed 2000m.

● Relative Humidity: The relative humidity of the atmosphere shall not exceed 50% at an ambient air temperature of +40℃; higher relative humidity is permissible at lower temperatures. The monthly average of the daily maximum relative humidity for the wettest month is 90%, and the monthly average of the daily minimum temperature for the same month is +25℃, taking into account condensation on the product surface due to temperature changes.

● Pollution Degree: 3.

● Installation Category: III.

Ambient Temperature Correction Factors

● GB/T 14048.1-2010 specifies the normal ambient temperature range for products (-5℃ to +40℃). When used within this normal working ambient temperature range, there is no impact on product performance.

● When the working ambient temperature is above 40℃ or below -5℃, the tripping characteristics and temperature rise of the product are affected by the ambient temperature; design or usage requires consultation between the manufacturer and the user.

● When the ambient temperature exceeds +40℃, the correction factors for the circuit breakers are shown in the table below.

Product Model	40℃	45℃	50℃	55℃	60℃
TGM1BX-125	1I_n	0.96I_n	0.94I_n	0.93I_n	0.89I_n
TGM1BX-160	1I_n	0.98I_n	0.97I_n	0.95I_n	0.94I_n
TGM1BX-250	1I_n	0.98I_n	0.94I_n	0.9I_n	0.86I_n

Product Model	30℃	35℃	40℃	45℃	50℃	55℃	60℃
TGM1BX-400	1I_n	0.95I_n	0.9I_n	0.89I_n	0.85I_n	0.81I_n	0.78I_n
TGM1BX-630	1I_n	0.95I_n	0.94I_n	0.92I_n	0.9I_n	0.87I_n	0.86I_n

Correction Factors for Use in High Altitude Areas

● GB/T 14048.1 specifies the relationship between altitude and rated impulse withstand voltage. When the altitude is <2000m, there is no significant impact on product performance.

● When the altitude is >2000m, conditions such as air cooling effects and reduction in rated impulse withstand voltage must be considered. Therefore, design or usage requires consultation between the manufacturer and the user.

● The table below provides the electrical performance correction factors for circuit breakers when used at altitudes >2000m.

Altitude (m)	2000	3000	4000	5000
Operational Current Correction Factor	1I_n	0.94I_n	0.88I_n	0.85I_n
Insulation Voltage (V)	1U_e	0.8U_e	0.7U_e	0.6U_e
Power Frequency Withstand Voltage (V)	0.3U_imp	0.25U_imp	0.2U_imp	0.18U_imp

Internal Accessories

● Undervoltage Release

● Shunt Release

● Auxiliary Contact

● Alarm Contact

Rachel

Industrial Control Sales Specialist: Focuses on delivering high-performance, cost-effective industrial control products. Offers end-to-end one-stop procurement support—covering rapid quotation, streamlined order fulfillment, and responsive after-sales service—to simplify clients’ procurement processes. Email: Anthony@icxsg.com

We offer competitive product pricing. For fast support, send your email, phone, address, and the product model & quantity you want—we’ll reach out quickly!

We typically respond via email within one business day! You can also contact us at Anthony@icxsg.com

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TGM1BX-125L/3340 32A AC220V(U) Molded Case Circuit Breaker

Product parameters

Series Overview

Rachel

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