GNF221A – Product Description
Siemens GNF221A General Duty Safety Switch
🔌 What it is
A Siemens 30-amp, 2-pole, 240V non-fusible general-duty safety switch / disconnect used to manually disconnect power to equipment for servicing or emergency shutoff.
🧾 What the model means
-
GNF → General Duty, Non-Fusible
-
221 → 2-pole, 2-wire configuration
-
A → Series / revision designation
⚡ What it does
This disconnect:
- Provides a manual ON/OFF disconnecting means for equipment
- Allows safe lockout/shutoff before maintenance
- Does not contain fuses—overcurrent protection must be upstream at the breaker/panel
- Typically mounted near equipment requiring a service disconnect
Manufacturer listings describe it as a 30A, 240V, 2-pole non-fusible indoor safety switch.
🏠 Typical uses
- Air conditioner condenser disconnects
- Water heater disconnects
- Small motor disconnects
- HVAC equipment shutoff
- Dedicated appliance disconnecting means
🧠 Simple explanation
This is a 30-amp disconnect switch that lets you manually shut off 240V equipment locally for servicing, but it does not provide fuse protection itself.
🔧 Key takeaway
- 30A rated
- 2-pole / 240V
-
Non-fusible (breaker/fuse protection must be elsewhere)
- Indoor NEMA 1 enclosure
- Common for HVAC and equipment disconnect applications
