Modular disconnector EATON HIS-100/3 3-pole 100 A (MPN 142830)

Modular disconnector EATON HIS-100/3 is a 3-pole switch rated for 100 A, intended for manual isolation and safe disconnection of three-phase circuits in modular distribution systems. Designed for installation in distribution boards and control panels, the device provides a straightforward means to interrupt power for maintenance, emergency stops and system reconfiguration while maintaining clear visual isolation of the circuit.

Advantages

This modular disconnector combines a compact DIN-rail compatible form factor with a clear mechanical open/closed indication and reliable switching for 100 A three-phase circuits. The product is built to integrate with standard modular panels and accessories, offering straightforward mounting, stable operation under typical electrical loads, and a design that supports routine safety procedures during maintenance and emergency interventions.

Suitable for (tasks / use cases)

• Manual isolation of three-phase circuits in distribution boards
• Maintenance and repair work requiring complete disconnection of supply
• Emergency shutdowns where rapid, visible disconnection is needed
• Integration into control panels for power section segregation
• Temporary system reconfiguration or circuit testing

Key specifications

• Poles: 3-pole design for three-phase systems
• Rated current: 100 A suitable for medium-load circuits
• Mounting: DIN-rail / modular distribution board compatible format
• Operation: Manual mechanical disconnector with visible position indication
• Function: Provides full isolation of phase conductors for safe maintenance

How to use

Install the modular disconnector on the DIN rail inside the distribution board or control panel following local wiring regulations and recommended torque values for terminal connections. Ensure power is switched off before wiring. Connect the three phase conductors to the input terminals and the outgoing conductors to the output terminals, verify tightness and correct phase sequence. Operate the handle to switch between closed and open positions; verify the visible indication to confirm isolation. Use the device as part of a lock-out/tag-out procedure when performing maintenance.

Usage recommendations

Periodically inspect terminals and mechanical operation for wear or overheating. Confirm compatibility with upstream protection and downstream equipment, and follow national electrical installation rules for earthing and short-circuit protection. For tasks requiring extended isolation, use appropriate locking or tagging accessories to secure the disconnector in the open position.