ISOLATE DISCONNECTOR SWITCH

LV–MV Electrical Isolation Equipment (Up to 36kV)

Integrated Power & Engineering

Integrated Power & Engineering designs, manufactures, and supplies high-quality Isolator / Disconnector Switches engineered to provide safe, visible, and reliable electrical isolation for low- and medium-voltage power systems. Our isolators are developed to ensure operator safety, regulatory compliance, and system integrity, making them essential components in substations, industrial facilities, commercial buildings, and renewable energy installations.

Manufactured using high-grade insulating materials, corrosion-resistant metal components, and precision operating mechanisms, our isolator switches are built to deliver dependable performance under continuous service and demanding site conditions.

Product Overview

An isolator (disconnector) is a mechanical switching device designed to ensure complete electrical separation of a circuit under no-load conditions. Unlike circuit breakers, isolators provide a clearly visible open gap, confirming that the circuit is fully de-energized and safe for maintenance.

Integrated Power & Engineering isolators are designed to:

  • Ensure total circuit isolation
  • Prevent accidental energization
  • Enable safe maintenance procedures
  • Support compliance with electrical safety regulations

Technical Specifications

Voltage Class

  • Low Voltage (LV)
  • Medium Voltage (MV) up to 36kV

Rated Current

  • 100A to 4000A (continuous duty)

Pole Configuration

  • 1P
  • 2P
  • 3P
  • 3P + Neutral
  • 4P

Operating Mechanism

  • Manual operation
  • Motorized operation
  • Remote-controlled operation (optional)

Mounting Arrangement

  • Panel-mounted
  • Surface-mounted
  • Switchgear-integrated design

Insulation & Enclosure

  • Insulating material: High-grade polymer / ceramic-based insulation
  • Enclosure protection: IP20 to IP65 (indoor & outdoor applications)

Mechanical Endurance

  • Designed for high operating cycles with minimal wear

Interlocking & Safety

  • Padlocking facility (optional)
  • Mechanical and electrical interlocking (optional)
  • Position indication (ON/OFF)

Standards Compliance

Manufactured in accordance with:

  • IEC 60947-3
  • BS EN 60947
  • IEEE C37
  • CE, ISO, IEC, NEC guidelines

Key Design & Performance Features

1. Safe and Visible Isolation

Provides a clearly visible disconnection point to confirm zero current flow before maintenance.

2. Robust Mechanical Construction

Designed with corrosion-resistant contacts and rigid operating mechanisms for long service life.

3. Flexible Operation Options

Available in manual, motorized, and remotely controlled versions to match system automation requirements.

4. High Safety Compliance

Supports lockout/tagout (LOTO) procedures and prevents unintended switching.

5. Wide Application Compatibility

Suitable for transformers, generators, feeders, solar PV systems, and industrial control circuits.

Typical Applications

  • Main power isolation in substations and plants
  • Transformer and generator disconnection
  • Solar PV and energy storage systems
  • Industrial automation and control panels
  • Commercial buildings and infrastructure
  • Emergency shutdown systems
  • Utility and distribution networks

Why Choose Integrated Power & Engineering?

  • LV–MV isolators up to 36kV
  • Current ratings up to 4000A
  • IEC / IEEE compliant designs
  • Manual and motorized options
  • Indoor and outdoor configurations
  • Custom-built solutions for project requirements
  • Strong local engineering and technical support

What is the main function of an isolator switch? +
An isolator provides complete electrical isolation of a circuit by creating a visible open gap, ensuring safe maintenance under no-load conditions.
Can an isolator be used to break load current? +
No. Isolators are designed to operate only when the circuit is de-energized. Load breaking must be done by a circuit breaker or load break switch.
What is the difference between an isolator and a circuit breaker? +
A circuit breaker interrupts fault and load current, while an isolator only provides physical disconnection for safety and maintenance.
Are your isolators suitable for outdoor installations? +
Yes. Outdoor isolators are available with IP-rated enclosures and corrosion-resistant materials.
Do you offer motorized isolator switches? +
Yes. Motorized and remotely operated isolators are available for automation and SCADA integration.
What voltage levels do your isolators support? +
Our isolators support LV and MV systems up to 36kV, depending on project requirements.
Can isolators be interlocked with circuit breakers? +
Yes. Mechanical and electrical interlocking can be provided to ensure safe switching sequences.
Are padlocking facilities available? +
Yes. Padlocking features are available to support lockout/tagout safety procedures.
What standards do your isolators comply with? +
Our isolators are manufactured in compliance with IEC 60947-3, BS EN 60947, IEEE C37, and related safety standards.
Can isolators be customized for specific projects? +
Yes. Pole configuration, current rating, enclosure type, and operating mechanism can be customized to meet project specifications.

Phone: +880 1713117974, +880 1717180660
E-mail: info@substationequipments.com, faruqipe36@gmail.com.com
Address: 165/7 West Rajashion, Birulia Road, Savar, Dhaka, Bangladesh.

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