RI and SRI type for Rotobloc and Arcobloc switchboards
RI 24 kV - 400 A - 12,5÷16 kA
SRI 24 kV - 400-630-800-1250 A
Motorized load break switch
type RI.M: motorized version of RI deadcenter overcoming type
- electrical and dimensional characteristics are the same as per the manual version
- LBS contacts position stability is always guaranteed until the dead center is overcome.
- in case of missing power supply during operation, the system comes back at rest and unloads the springs.
- supply voltage: 24 Vcc +/- 20%.
- power required: < 250 W.
- ambient temperature range: –15° + 40°c.
type RI.SM: motorized version of power stored RI.S type.
- electrical and dimensional characteristics: same as per manual version.
- the LBS contacts position stability is always guaranteed until the operation is completed.
- instant opening can be manually performed or carried out by a remote opening electromagnet coil.
- supply voltage: 48 or 110 Vcc.
- power required: < 500 W.
- ambient temperature range: –15° + 40°c.
Manufacturing features and fittings
• epoxy resin moving equipment fitted with earthed moving contacts in the opening position.
• epoxy resin post insulators supporting the fixed contacts and busbars fixing.
• RI type: epoxy resin lower insulators with blow device and complete with fixed contact.
Earth switches
STS - without insulators, suitable for RI, RI.S and SRI types.
ST - with insulators (for RI, RI.S and SRI types).
STV - with insulators and a set of three fuseholder tongs,
suitable for RI.SV and SRI.V types.
ST SUP - with upper insulators suitable for RI, RI.S and SRI types.
STV SUP - with insulators and a set of three upper fuseholder tongs suitable for RI.SV type.
- the above mentioned switches are foreseen with C/version with capacitor deviders.
Locks
Key-lock or electromechanical lock, able to satisfy several needs.
Auxiliary contacts
Auxiliary contacts for: load break switch; disconnecting switch; earth switch.
- shunt trip coil (only for RI.S and RI.SV).