Medium-Voltage Switching

MV Disconnectors & Insulators

Visible isolation, safe maintenance

Disconnectors switch a de-energised circuit in medium- and high-voltage systems, giving maintenance staff a visible isolation point. The disconnectors we supply comply with TS EN 62271-102 and come from ISO 9001 quality-assured production. They are available in indoor and outdoor types, with Normal, Earthed, Fused and Fused-Earthed functions.

MV Disconnectors & InsulatorsImage coming soon

Rated Voltage36 kV

Rated Current630 / 1250 A

Reference StandardTS EN 62271-102

Product Families

Outdoor MV Disconnectors

Pole-top / open switchyard; porcelain or silicone insulator; 630–1250 A.

Indoor Disconnectors

Indoor and kiosk; porcelain or epoxy insulator; DN/DT/DS/DST.

Load-Break Switches

Arc-quenched on-load switching; single/three-pole; porcelain/epoxy/silicone.

Silicone Insulators

Hydrophobic, light, UV-resistant; VHD 35, K1 (40 kN), K2 (100 kN), post/drive.

Disconnector Spare Parts

24-48-110 VDC motor drives, contacts, blades, earth blade, fuse holder.

Key Technical Values

Rated Voltage: 36 kV
Withstand Current: 16 kA
Rated Current: 630 A / 1250 A
Function Types: Normal · Topraklı · Sigortalı · Sig.-Topraklı
Insulator Options: Porselen · Epoksi · Silikon
Operating Mechanism: Manuel veya 24/48/110 VDC motorlu

Application Areas

Pole-top isolation points on distribution networks
Substation incoming isolation
Kiosk and indoor MV equipment
Overhead-line to transformer transitions (fused)
Sectional isolation in ring networks

Why Powals?

Full Function Range

Normal, earthed, fused and fused-earthed; 630 A and 1250 A from a single source.

Insulator Flexibility

Porcelain, epoxy or silicone to suit site pollution class and climate.

SCADA-Ready

Ready for remote operation with motor drives and auxiliary contacts.

Reference Standards

TS EN 62271-102ISO 9001

Certificates and test reports belong to the supplied products and their manufacturers; shared with the quotation file.

Frequently Asked Questions

What is the difference between an MV disconnector and a circuit breaker?+

A disconnector provides a visible isolation gap for safe maintenance but does not interrupt load current, whereas a circuit breaker interrupts load and fault currents. The two operate in coordination.