How to find the right Knife Switches AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Knife Switches
- Intended use
- Open knife switches are for classroom demos and low-voltage experiments; enclosed fused disconnects are for real power isolation Exposed blades at mains voltage are a shock and arc hazard.
- Poles and throws
- SPST, SPDT, DPST or DPDT to match the circuit Double-throw switches are used for changeover between sources.
- Current capacity
- Rated current must exceed the circuit load with margin Undersized blades overheat at the hinge and jaw.
- Breaking under load
- Do not open under load unless rated for load break Opening under load draws an arc.
What to avoid
- Open-blade knife switches at mains voltage outside a supervised lab.
- Opening a non-load-break switch while current is flowing.