STM1 Molded Case Circuit Breakers

SPECIFICATIONS

Main functions of STM1 Molded Case Circuit Breakers

Overload Protection: When the current in the circuit exceeds the rated value of the STM1 Molded Case Circuit Breakers, it will automatically cut off the circuit within a set period of time to prevent the circuit and equipment from overheating, thus avoiding fire and damage.

Short circuit protection: When a short circuit occurs in a circuit, the STM1 Molded Case Circuit Breakers will quickly cut off the circuit to prevent the short circuit current from causing serious damage to the circuit and equipment.

Undervoltage protection (some STM1 Molded Case Circuit Breakerss have this function): When the power supply voltage is reduced to a certain level, the STM1 Molded Case Circuit Breakers will cut off the circuit to prevent the equipment from being damaged or malfunctioning due to operation under low voltage.

Principle of operation of the STM1 Molded Case Circuit Breakers

The STM1 Molded Case Circuit Breakers contains an internal thermal magnetic or electronic trip detector to detect current and voltage changes in the circuit. When the current or voltage is abnormal, the striker triggers the tripping mechanism of the STM1 Molded Case Circuit Breakers, causing it to quickly cut off the circuit.

1.Thermal Magnetic Tripper: It utilizes the heat generated when current passes through a conductor to trigger a trip. When the current is too high, the conductor heats up, causing the bimetal inside the thermal magnetic striker to bend, thus triggering the tripping mechanism.

2.Electronic striker: It utilizes electronic components to detect changes in current and voltage and control the action of the tripping mechanism. When an abnormality is detected, the electronic striker sends a signal to the tripping mechanism to cut off the circuit.

Features of STM1 Molded Case Circuit Breakers

High breaking capacity: STM1 Molded Case Circuit Breakerss have high short-circuit breaking capacity, which can quickly cut off the circuit when a short-circuit occurs and protect the safety of the circuit and equipment.

Multiple Protection Functions: In addition to the basic overload and short-circuit protection functions, some STM1 Molded Case Circuit Breakerss also have additional functions such as undervoltage protection and ground fault protection.

Easy to install and maintain: STM1 Molded Case Circuit Breakerss usually adopt modularized design, which is easy to install and maintain, and is suitable for various power distribution systems.

High reliability: STM1 Molded Case Circuit Breakerss have been rigorously tested and certified to have high reliability and stability to ensure the safe operation of electrical systems.

Application Scenarios of STM1 Molded Case Circuit Breakers

STM1 Molded Case Circuit Breakerss are widely used in power distribution systems in the industrial, commercial and residential sectors as either the main switch or branch switch of a circuit. They are usually installed in distribution boxes, distribution cabinets or control cabinets to protect circuits and equipment from damage caused by abnormal currents and voltages.