GEN3 MIS3-20 20A Three Pole 500V Mini Isolator Switch IP66

Description

Compact three-phase isolation, lockable for safety.

The GEN3 MIS3-20 is a 20-amp three-pole mini isolator switch, rated 500V and IP66 for outdoor and wash-down use. It provides a secure, lockable means of isolating a three-phase circuit for maintenance or emergency shutdown, in a compact surface-mount enclosure with top, bottom and side conduit entries. It suits three-phase motors, pumps, air conditioning and machinery that need a local isolation point.

Key Features

• 20A rated current, three pole, 500V three-phase
• IP66 weatherproof – dust-tight and protected against high-pressure water jets
• Padlockable in the off position for safe isolation (6mm shackle)
• Top, bottom and side conduit entries for flexible installation
• Compact surface-mount body (approximately 141 × 84 × 90mm)
• Durable PCA18 virgin-grade plastic (no regrind)
• 316 stainless steel springs and mounting screws
• Brass internal components, greater than 85% copper for lower heat rise
• Mounting template provided
• Operating range −25°C to +70°C
• Australian/NZ approval or compliance certificates held
• Interchangeable with other major brands

Get yours online for fast dispatch across Australia.

Why a Three-Phase Lockable Isolator Matters

An isolator gives a clear, local point to switch off and lock out a circuit before working on connected equipment, a core requirement of safe isolation practice. With three poles, the MIS3-20 breaks all three phases of a 500V supply together, and padlocks in the off position with a 6mm shackle so the circuit cannot be re-energised while someone is working downstream. Top, bottom and side conduit entries make it easy to wire in line from any direction.

Built for the Outdoors

Rated IP66, the MIS3-20 is dust-tight and withstands high-pressure water jets, so it stands up to rain, dust and wash-down. Moulded from PCA18 virgin-grade plastic with 316 stainless steel springs and screws and high-copper brass internals, it is built for a long service life in exposed locations, and operates reliably from −25°C to +70°C.

Q: What is the GEN3 MIS3-20 used for?
A: It is a 20A three-pole isolator for safely switching off and locking out a 500V three-phase circuit, suited to three-phase motors, pumps, air conditioning and machinery needing a local isolation point.

Q: What is the difference between the MIS3-20 and the MIS1-20?
A: Poles and voltage. The MIS3-20 is a three-pole 500V isolator for three-phase circuits, while the MIS1-20 is a single-pole 250V isolator for single-phase circuits. Both are 20A IP66 mini isolators.

Q: Can the isolator be locked off?
A: Yes. It padlocks in the off position with a 6mm shackle, preventing the circuit from being re-energised during maintenance.