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L1 Manual Reset Overload Protector Circuit Breaker

L1 Series Single Pole circuit breakers represent our largest selling product family.
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Product Introduction

Products Description

L1 Series Single Pole circuit breakers represent our largest selling product family. Based on a proven "SNAP ACTING" bimetallic thermal sensing element system, L1 Series circuit breakers sense overload conditions and interrupt the flow of current. The resettable actuator mechanism then remains disengaged until manually reset.

L1 Series offers amperage ratings from 3A to 60A, and is suitable for a diversity of applications. Our products are carefully calibrated and tested to ensure reliable performance under a variety of operating assignments and conditions.

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Working principle

1. Interrupting Electric Current: The primary function of a circuit breaker is to interrupt or open the flow of electric current through a circuit. When the current exceeds a safe or design threshold, the circuit breaker quickly responds to halt the flow of electricity.

2. Exceeding Design Limitations: Every circuit breaker is designed with specific current-carrying capacities. These capacities are determined based on the characteristics of the circuit and the equipment it serves. When the current surpasses these design limitations, it could lead to overheating, equipment damage, and potential safety hazards.

3. Preventing Energy Supply to Loads: By interrupting the current flow, the circuit breaker prevents the supply of energy to the connected loads downstream. This action helps prevent the loads from receiving excessive and potentially damaging levels of current.

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Product advantage

  • Current Interruption: Once an overload condition is detected, the circuit breakers interrupt the flow of current. This rapid interruption helps prevent damage to the circuit, connected equipment, and potential safety hazards.
  • Overload Sensing: The circuit breakers are designed to detect overload conditions in electrical circuits. When the current exceeds a certain threshold, the bimetallic thermal element reacts to this increase and initiates the protective action.
  • Manual Reset: After the circuit breaker trips due to an overload, the actuator mechanism remains disengaged. This feature prevents automatic reconnection once the fault is cleared, ensuring that the circuit breaker is manually reset by a qualified individual.

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Products parameters
Product name: L1 Manual Reset Overload Protector Circuit Breaker
Rated voltage: AC 125/250V  DC 50V
Rated current: 3-50A
Interrupt capacity: 125VaxX1000A  250VacX200A
Insulation resistance: >500 MΩ
Resettable overload capacity: ten times rated current
Dielectric strength 1,500Vac 1 minute
Weight: Approx 25g (0.9oz.)
Voltage drop: less than 0.25V
Reset time: Within 60 seconds 
Method of Operation: R type and J type
Product Picture

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Customer installation cases
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Our factory

Dongguan Senreach Electronics Co., Ltd, founded in 2011, is a professional circuit protection components manufacturer and programme supplier in China. We have 20 years' experience in manufacturing fuse, fuse holder, circuit breaker, thermal protector, ntc sensor and etc.

With variety of advanced manufacturing and testing equipments, we adpot perfect quality management system to ensure that every single piece of our components are safe and stable. Our operations are ISO9001:2000-certified and products meet international standards.

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Our advantage

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Competitive Price

We have our own factory and build our own molds which enable us to offer the first-hand price to our customers.

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Quality Assurance

Every piece of product pass full inspection by both auto test equipments and our QA team.

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Factory Wholesale

We have open stock for standard product in warehouse. So we can finish order in a short lead time and make fast delivery.

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Professional Team

We have R&D, QA, sales and after-sales team to offer you a full service including selection recommendation, technical support, after-sales protection.

 

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