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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5ST3020 |
| Alternative Part Number | 5ST3020 |
| Manufacturer | Siemens |
| Product Type | Fault Signal Contact |
| Suitable For | 5SL Miniature Circuit Breaker |
| Number of NC Contacts | 1 |
| Number of NO Contacts | 1 |
| Number of Change-over Switches | 0 |
| Number of Pitch Units for Width | 0.5 |
| Mountable On | RCBO and Miniature Circuit Breaker |
| Control Voltage Type | AC/DC |
| Connectable Conductor Cross-section (min) | 0.5 mm² |
| Connectable Conductor Cross-section (max) | 2.5 mm² |
| Tightening Torque (max) | 0.5 N·m |
| AWG Conductors | 24 ... 12 |
| Height | 90 mm (varies by model) |
| Width | 9 mm |
| Depth | 70 mm |
| Net Weight | Approx. 72 g to 85 g (varies by model) |
| Ambient Operating Temperature (min) | -25 °C |
| Ambient Operating Temperature (max) | 55 °C |
| Storage Temperature (min) | -40 °C |
| Storage Temperature (max) | 75 °C |
| Certifications | General Product Approval, Declaration of Conformity, and others as applicable to the model |
| Commodity Code | 85365080 |
The Siemens 5ST3020 is a meticulously engineered fault signal contact designed to enhance the functionality of 5SL miniature circuit breakers. This compact and reliable accessory is essential for monitoring circuit conditions and providing immediate fault indication, thereby facilitating swift and informed maintenance decisions. With its ability to be mounted onto RCBOs and miniature circuit breakers, the 5ST3020 is a versatile addition to any electrical safety system.
Crafted with precision, the 5ST3020 features one normally closed (NC) contact and one normally open (NO) contact, allowing it to adapt to various circuit configurations. The unit occupies a minimal space of just 0.5 pitch units in width, ensuring it integrates seamlessly into electrical distribution setups without demanding excessive room.
The fault signal contact operates effectively across a wide range of control voltages in both AC and DC applications, making it a flexible solution for diverse electrical systems. Its robust design adheres to industry standards, including IEC/EN60947-5-1 and IEC/EN62019, which underscores its reliability and quality.
Incorporating the Siemens 5ST3020 into your electrical infrastructure not only contributes to enhanced operational safety but also supports preventive maintenance strategies. Its ability to signal fault conditions promptly ensures that potential issues can be addressed before they escalate, thus minimising downtime and maintaining system efficiency.
The Siemens 5ST3020 is a testament to the brand's commitment to innovation, safety, and quality, making it an indispensable component for modern electrical safety management.
Commonly Asked Questions
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Frequently Asked Questions
What is the purpose of a fault signal contact?
A fault signal contact is used to provide a remote indication of a trip condition in a circuit breaker. When the associated circuit breaker trips due to a fault, the fault signal contact changes state, allowing for an external signal or alarm to be activated, indicating the need for attention.
Can the fault signal contact be mounted on any miniature circuit breaker?
The fault signal contact is designed to be mounted on specific types of miniature circuit breakers, such as the 5SL, 5SY, 5SP series, RCBO 5SU1, and RCD 5SV. It is important to check compatibility with the specific breaker model before installation.
What type of contacts does the fault signal contact have?
The fault signal contact comes with one normally closed (NC) contact and one normally open (NO) contact, providing flexibility for different signalling requirements.
How many pitch units in width does the fault signal contact occupy?
The fault signal contact occupies 0.5 pitch units in width, making it a compact addition to a circuit breaker without requiring much additional space.
Is there a specific voltage type for the control voltage of the fault signal contact?
The fault signal contact is designed to work with both AC and DC control voltages, providing versatility for use in various electrical systems.
What is the insulation voltage rating for this fault signal contact?
The insulation voltage rating for the fault signal contact is typically rated at 440 V.
What is the surge voltage resistance of the fault signal contact?
The surge voltage resistance of the fault signal contact is rated at 4 kV.
What is the typical electrical endurance of the fault signal contact?
The typical electrical endurance of the fault signal contact is around 12,000 to 20,000 switching cycles, depending on the specific model.
What is the protection class IP rating of the fault signal contact?
The fault signal contact has a protection class IP rating of IP20.
Can the fault signal contact be used with a handle coupler?
Yes, the fault signal contact can be used with a handle coupler, such as the 5ST3805-1, which may be required for certain applications.
