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Tue, Sep 11, 12 at 18:23
| I have a Morris 70332 24V 2A door jamb ball switch and need to get a transformer. What specs do I look for?
Thanks. |
Follow-Up Postings:
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| You need to match the transformer to the bell or chime, not to the switch. Most doorbells are 24Volts, but some require a bit more current than others. |
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- Posted by bus_driver (My Page) on Tue, Sep 11, 12 at 22:00
| Most door chimes are 16 volts. Older (much older) chimes might be 10 volts. |
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- Posted by alan_s_thefirst (My Page) on Wed, Sep 12, 12 at 14:58
| What are you planning to use this for? It's not a doorbell switch. Is it for an alarm system, or just a visitor announce thing? |
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- Posted by alan_s_thefirst (My Page) on Wed, Sep 12, 12 at 22:58
| Keep in mind if you plan to connect a doorbell to that switch unmodified, it may overheat. Most are not rated for constant use, but as long as the door is open, a "dingdong" doorbell will be energised. You'll hear "ding" but no "dong" until the door closes. I learned this the hard way, it melted the doorbell a bit. My solution was to connect the bell to a relay, on the normally closed terminals. When the circuit was energised, the relay would open so the chime was really a pulse- very quick, but it was perfect. |
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