ABB PS201PRE fuse module



ABB PS201PRE fuse module

Product Overview

PS201PRE belongs to the ABB PS series fuse module, which is designed with "modularity, high safety, and easy maintenance" as its core. Its main function is to quickly cut off the faulty circuit by melting the fuse in the event of a short circuit, severe overload, or other faults in the circuit, avoiding the expansion of the fault and causing equipment damage, fire, and other safety accidents, providing reliable protection for subsequent circuits and electrical equipment. As a modular component, it can be flexibly combined with ABB's circuit breakers, contactors, and other components to build a complete low-voltage distribution and protection system, adapting to the integrated requirements of modern distribution circuits.

Core technical parameters

Technical parameters are the core basis for selecting fuse modules. The key parameters of PS201PRE are as follows, and in practical applications, they should be based on ABB's official product manual:

1. Electrical performance parameters: The rated operating voltage (Ue) is usually AC 400V/500V, suitable for low-voltage three-phase and single-phase distribution systems; The rated current (In) is matched according to the fuse specifications, and the module itself supports the installation of fuses within a specific range (commonly compatible fuses have a rated current range of 1A-32A). The corresponding specification of fuse can be selected according to the actual load requirements; The breaking capacity (Icu) complies with the IEC 60269 standard and can safely break short-circuit currents of no less than 10kA at rated voltage, meeting the fault protection requirements of most low-voltage scenarios.

2. Fuse adaptation parameters: Supports the installation of cylindrical cap fuses (such as the gG type fuse according to IEC 60269-1 standard), with a typical fuse size of 5mm in diameter and 20mm in length (5x20mm), suitable for standard fuses within this size range, easy to replace, and highly versatile.

3. Environmental and protective parameters: The working environment temperature range is -25 ℃~+60 ℃, which can adapt to cold regions and industrial high temperature environments; The protection level of the shell is IP20, which can effectively prevent solid foreign objects such as fingers from entering and avoid safety risks caused by accidental contact; The relative humidity adaptation range is ≤ 95% (no condensation), suitable for humid environments such as workshops and basements.

4. Mechanical performance parameters: The module has a mechanical lifespan of over 1000 insertions and removals, meeting the needs of frequent maintenance and replacement; The installation method is compatible with standard 35mm DIN rails, and the installation is firm and has good anti vibration performance.

Structural characteristics and core advantages

1. Modular integrated design

PS201PRE adopts a standardized modular structure, which is compact in size and occupies a small space in the distribution cabinet. It can be seamlessly combined and installed with other ABB PS series protection modules (such as surge protectors, isolation switch modules), PKZ2 series contactors, thermal overload relays, etc. without the need for additional customized supports, greatly simplifying the layout design of the distribution system, improving the utilization of cabinet space, and facilitating later system expansion and renovation.

2. Accurate and reliable protection performance

The module adopts an optimized conductive structure internally, with low contact resistance and low heat generation when powered on, ensuring stable operation under normal working current; When a circuit fails, the adapted fuse can respond accurately according to the magnitude of the fault current, quickly fuse and cut off the circuit, with a short protection response time (usually in milliseconds), effectively avoiding the impact of fault current on backend equipment. At the same time, the module has good arc extinguishing ability, and the arc generated when the fuse is blown can be quickly extinguished by the internal structure to prevent arc leakage and safety hazards.

3. Convenient status indication and maintenance

The module is equipped with an intuitive fuse status indicator function, and some models integrate mechanical indicators or electrical auxiliary contacts. When the fuse is blown, the indicator device will clearly send signals (such as color changes in the indicator window or auxiliary contact actions), making it easy for operation and maintenance personnel to quickly locate the faulty module without the need for individual detection, greatly improving the efficiency of fault diagnosis. In addition, the module adopts a drawer type or buckle type fuse installation structure, which eliminates the need to disassemble the entire module when replacing the fuse, making the operation simple and convenient, and reducing maintenance costs.

4. High security structural design

The module housing is made of flame-retardant engineering plastic material, which has good insulation performance and high temperature resistance. It can withstand the instantaneous high temperature when the fuse is blown, avoiding the burning or deformation of the housing; The terminal block adopts a crimping design, supporting the connection of hard wires and soft wires (matched with wire ears). The wiring is firm and not easy to loosen, reducing the risk of local overheating caused by poor contact; At the same time, the module design complies with international safety standards and has an anti electric shock protection structure to ensure the safety of operation and maintenance personnel.

Applicable scenarios and typical applications

Based on its flexible modular characteristics and reliable protection performance, the PS201PRE fuse module is suitable for branch circuit protection in various low-voltage distribution systems. Typical application scenarios include:

-In the field of industrial automation: short circuit and overload protection for production line control circuits, PLC control system power branches, and small motor control circuits, combined with contactors to achieve dual protection for motors (contactor controls on/off, fuse module is responsible for fault protection).

-In the field of building power distribution: branch protection for lighting circuits, air conditioning terminal circuits, socket circuits in office buildings, commercial complexes, and residential areas, as well as circuit protection for emergency lighting systems, to ensure the safety of building electricity use.

-In the field of mechanical equipment: internal circuit protection for small machine tools, packaging machinery, printing equipment, and medical equipment (such as small diagnostic instruments), providing precise protection for the core components of the equipment and avoiding damage due to circuit faults.

-In the field of new energy, the output branch circuit of small photovoltaic inverters and the low-voltage distribution branch protection of energy storage systems are designed to meet the electricity demand of new energy scenarios and ensure stable system operation.

Key points for installation and maintenance

1. Installation precautions

-Before installation, it is necessary to confirm that the module model matches the actual circuit parameters (voltage, current), check that the module appearance is not damaged, the insulation shell is not cracked, and the fuse mounting seat has good contact without oxidation.

-The installation location should be away from heat sources, water sources, and corrosive gases, avoid direct sunlight, ensure good ventilation, and reserve at least 5mm of heat dissipation gap around the module to prevent the protection performance from being affected by high temperature environment.

-When installing with a 35mm DIN rail, it is necessary to ensure that the rail is firmly fixed and that the module is not loose after being inserted into the rail; When multiple modules are installed side by side, sufficient spacing should be reserved according to the product manual requirements to avoid mutual influence between modules.

-When wiring, it is necessary to distinguish between input and output terminals. The specifications of the main circuit wires should be matched according to the rated current of the fuse (such as 16A fuse compatible with 2.5mm ² copper wire, 32A fuse compatible with 4mm ² copper wire). The control circuit (if any) wires should be selected with 1.5mm ² copper wire, and the terminal screws should be tightened after wiring to ensure reliable wiring.

-Before installing the fuse, it is necessary to confirm that its specifications are compatible with the module and meet the circuit protection requirements. During installation, avoid using excessive force to damage the fuse or internal structure of the module.

2. Daily maintenance and troubleshooting

-Regular inspection: Regularly inspect the appearance of the module every month, clean the surface dust and debris; Observe the status indicator device and confirm that the fuse is in normal condition; Check for loose or discolored wiring terminals, and if so, tighten the terminal screws again.

-Fuse replacement: When the status indicator shows that the fuse is blown, the upper power supply should be disconnected first, and the circuit should be confirmed to have no voltage before removing the blown fuse and replacing it with a qualified fuse of the same specification and model. It is forbidden to use fuses that do not meet the specifications or are of poor quality to avoid losing their protective function or causing module damage.

-Common fault handling: If the module frequently experiences fuse melting, it is necessary to check whether there are short circuits, overloads, and other faults in the circuit, rather than simply replacing the fuse; If the module experiences severe heating, it is necessary to check whether the wiring is loose, whether the fuse specifications are too small, or whether there are internal faults in the module. If necessary, replace the module.

-Long term storage: uninstalled modules should be stored in a dry, ventilated, and non corrosive gas environment, avoiding direct sunlight and severe vibration. The storage temperature should be controlled between -25 ℃ and+60 ℃, and the relative humidity should be ≤ 95%.