Hager SF463 63A 4 Pole Manual Changeover Switch I-0-II Centre Off

Description

Three-phase mains-to-generator, one 63A switch.

The Hager SF463 is a 4 pole, 63A manual changeover switch with I-0-II (centre-off) positions, transferring a three-phase circuit between two power sources across all four conductors with a clear OFF in between. Rated 400V AC and built to handle heavier loads on 25mm2 conductors, it is well suited to mains-to-generator transfer on three-phase boards in commercial, industrial and event settings.

Key Features

• 63A rated current
• 4 pole (4P) manual changeover
• I-0-II positions with centre-off isolation
• 8 modules width
• Rated operational voltage 400V AC (three-phase), 50-60Hz
• Screw terminals, 25mm2 rigid / 16mm2 flexible
• Nominal tightening torque 2.9Nm
• 100,000 mechanical operations, 5,000 electrical (AC21)
• IP20, DIN rail mounting
• Rated insulation voltage Ui 500V, impulse withstand Uimp 4kV

Order today for fast dispatch Australia-wide.

What Is a 4 Pole I-0-II Changeover Switch?

I-0-II describes the three switch positions: source I, OFF (0) in the centre, and source II. The centre-off position disconnects the circuit from both supplies, giving a safe break during transfer. The SF463 switches four poles at once, so all conductors of a three-phase circuit move together between the two sources.

Three-Phase Mains-to-Generator Transfer

The SF463 is built for manual transfer between a primary three-phase supply and a backup such as a generator. Its 63A rating and 25mm2 terminal capacity handle heavier three-phase feeds, and the centre-off position ensures both sources are isolated before you switch across. It mounts on standard 35mm DIN rail and occupies eight modules.

Built for Heavy Duty

Rated for 100,000 mechanical operations and 5,000 electrical operations at nominal load, the SF463 is made for reliable, repeated switching. An operating temperature range of -25 to 50 degrees Celsius suits it to demanding Australian installation environments.

Q: Can the Hager SF463 switch a three-phase supply between mains and a generator?
A: Yes. It is a four-pole manual changeover switch rated 400V that transfers a three-phase circuit between two power sources, such as mains and a generator, with a centre-off position for safe transfer.

Q: What does the I-0-II marking mean?
A: It marks the three positions: source I, 0 (off) in the centre, and source II. The centre-off isolates the circuit from both supplies during switching.

Q: What is the difference between the SF463 and the SF263?
A: Both are 63A I-0-II manual changeover switches rated to Ui 500V. The SF463 is four-pole (8 modules) for three-phase circuits at 400V; the SF263 is two-pole (4 modules).