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The MERSEN RL40 is a renewal link rated at 250 volts, designed as a replaceable fusible element used within renewable fuse assemblies. Renewal links restore a fuse holder to service after an overcurrent event by replacing only the fusible element rather than the entire fuse body. This approach reduces material cost and downtime in panels, disconnects, and distribution equipment where renewable-style fuses are specified. Electricians and maintenance technicians working on industrial, commercial, and residential electrical systems install this component as part of routine overcurrent protection maintenance.
The RL40 is suited for use in renewable fuse applications found in electrical panels, motor control centers, and distribution boards. It is installed wherever the corresponding renewable fuse holder is present and the existing link has cleared due to an overcurrent condition. This part is appropriate for commercial and light industrial electrical maintenance work performed by licensed electricians.
Designed as a replacement renewal link for use in renewable fuse holders rated for 250-volt service. Consult the fuse holder manufacturer specifications to confirm element compatibility before installation.
Installation should be performed by a qualified, licensed electrician in accordance with applicable NEC requirements. De-energize and lock out the circuit before removing or installing any fuse element. Verify that the replacement link rating matches the original fuse holder specifications before reinstalling. Never install a link with a higher rating than the circuit is designed to carry.
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