Product guide
High-Current Metal Push Buttons: Read the Load Rating
Choose a high-current metal push button by voltage, load type, inrush and switching life rather than the headline ampere value alone.
In this article
A high-current metal push button is intended for a different duty from a low-level signalling control. The important question is whether the selected model can switch the actual load at the required voltage and operating frequency.
Current ratings need context.
Resistive, inductive and capacitive loads place different demands on contacts. A motor, solenoid or power supply can draw more current at start-up than during steady operation. Check the documented switching rating for the load type, including AC/DC differences and the required electrical life.
Decide between direct and indirect switching.
If the load exceeds the button’s documented capability, use a suitably designed control circuit with an appropriately rated switching device. A larger printed current value is not a substitute for verifying the complete circuit and its protection.
Include the physical installation.
Check conductor size, terminal connection, allowable ambient temperature and rear clearance. Where illumination is provided, its supply requirements remain separate from the contact load rating.
The J22-C high-current metal push-button range provides model-specific starting points. Send the operating voltage, load description, steady current, starting current where known and expected switching frequency with your enquiry.
Load information for a high-current button
Send the application data with the model enquiry so that the proposed switch can be assessed against its documented switching duty.
| Check | Information to record |
|---|---|
| Supply and load | Voltage, AC/DC type and what the circuit switches. |
| Current profile | Normal current and known starting or inrush current. |
| Operating duty | Expected switching frequency and required service life. |
Is the largest current number on a listing enough to select the button?
No. Read the conditions attached to the rating, including voltage and load type. Select a suitable control interface if direct switching is outside the documented capability.
Explore the products
Catalogue examples from the ranges discussed. Open a model to check its configuration and technical details.
Request model drawings and selection support