Why Choose the Mersen A204953 Miniature Fuse Holder?
The Mersen A204953, catalogue reference MIPUPTF70, is a robust panel-mounted miniature fuse holder designed for use with standard 5 × 20 mm cartridge fuses. As part of the Mersen protected PU PTF series, it provides a secure and accessible circuit-protection solution for industrial control equipment, electronic assemblies and electrical panels.
Rated at 250 V AC and 10 A, the A204953 uses a practical bayonet cap that allows straightforward fuse installation and replacement. Its single-pole construction and compact cylindrical body make it suitable for equipment where space is limited but dependable fuse retention and electrical contact are essential.
The fuse holder features a durable PA6 insulating housing, an IP40 protection rating and materials meeting the UL94 V-0 flammability classification. Low contact resistance helps maintain efficient electrical performance, while compliance with IEC miniature fuse-holder requirements supports reliable use in professionally designed electrical and electronic equipment.
Key Advantages
- Protected panel-mounted fuse holder for 5 × 20 mm fuses.
- 250 V AC voltage rating for low-voltage equipment.
- 10 A rated current.
- Bayonet cap enables quick and secure fuse replacement.
- IP40 protection rating for improved operational safety.
- Low contact resistance supports efficient electrical performance.
- Compact single-pole design saves panel space.
- Flame-retardant housing meets UL94 V-0 requirements.
Key Features
- Mersen protected PU PTF miniature fuse-holder series.
- 250 V AC IEC rated voltage.
- 10 A rated current.
- Compatible with 5 × 20 mm miniature cartridge fuses.
- Secure bayonet-style fuse-holder cap.
- Single-pole electrical configuration.
- Panel-mounting construction.
- PA6 thermoplastic housing.
- IP40 degree of protection.
- Operating temperature range from approximately -30°C to +120°C.
Secure Fuse Installation for Electrical Equipment
The Mersen A204953 provides a secure interface between a replaceable miniature fuse and the protected electrical circuit. Its bayonet cap retains the fuse firmly while allowing maintenance personnel to access and replace the fuse without dismantling the surrounding equipment.
The holder should be fitted with a correctly rated 5 × 20 mm cartridge fuse selected according to the operating voltage, normal load current, inrush conditions and prospective fault current of the protected circuit. The fuse holder itself does not provide overcurrent protection unless a suitable fuse is installed.
Typical Applications
- Industrial control panels.
- Power supplies and power-conversion equipment.
- Automation and process-control systems.
- Instrumentation and measuring equipment.
- Electronic equipment and OEM assemblies.
- Commercial and industrial electrical devices.
