Telergon Fused Switch Disconnectors

The fusible switches - disconnectors in its two series,
are manufactured with high safety self-extinguishing
materials, providing an excellent level of electrical insulation,
low smoke emission and high resistance to
electromechanical stress.

They combine in a compact unit, the function of a fusible
switch disconnector with protection against overloads and
short - circuits given by the fuses, these once installed remain
fixed in the switch, ensuring a long electrical and mechanical
life and safe operations for the user.

They comply with environmental requirements and
undergo strict quality controls for a reliable product
that meets the most demanding requirements.

The M21 series consists of a sandwich-type body containing self-cleaning
blade type contacts, with pre-arc zones to ensure long term,
fault-free energy transmission and coated with silver alloy for 
long term electromechanical life, externally has housings to insert
fuses according to the appropriate format.  The detent mechanism
provides quick and independent switching due to the
accumulation of elastic potential energy, which is transmitted at 
high speed to the contacts of arc extinction.

The M11 series is of modular construction, with the contacts being 
moved by a cross shaft with tripping being positive opening.