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About Sound Levels
To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.
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About AC to AC Voltage Transformers
For single-phase equipment, use this formula to find power output: VA = Volts × Amps
For three-phase equipment, use this formula to find power output: VA = Volts × Amps × 1.73
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Outlet Box/Panel-Mount High-Inrush AC to AC Transformers
Use the included mounting plate to mount these transformers to a panel. They can handle momentary high-inrush current associated with equipment start-up. Also known as control transformers, they are used in heating, ventilation, and air conditioning control circuits.
Voltage | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Input | Output | Power Output, VA | Wire Lead Lg. | Ht. | Wd. | Dp. | Specifications Met | Each | |
Single Phase—Wire Leads Input and Output | |||||||||
Step Down Voltage | |||||||||
| 120V AC, 208V AC, 240V AC | 24V AC | 40 | 6" | 2.8" | 3.7" | 2 1/2" | UL Recognized Component | 0000000 | 000000 |
| 120V AC | 24V AC | 40 | 6" | 2.8" | 3.7" | 2 1/2" | UL Recognized Component | 0000000 | 00000 |
| 208V AC, 240V AC | 24V AC | 40 | 6" | 2.8" | 3.7" | 2 1/2" | UL Recognized Component | 0000000 | 00000 |
Hammer Top Bells
These make great doorbells when used with a push button.
Mounting Holes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current | Volume | Sound Pattern | Bell Dia. | Ht. | Material | Fasteners Included | No. of | Dia. | Each | |
With Screw Terminals | |||||||||||
| 6V DC, 8V AC | 0.8 A @ 6 V DC, 1 A @ 8 V AC | 74 dBA @ 10 ft. | Continuous | 6" | 10 5/8" | Steel | No | 3 | 1/4" | 00000000 | 0000000 |
| 6V DC, 8V AC | 1 A @ 6 V DC, 1 A @ 8 V AC | 90 dBA @ 10 ft. | Continuous | 2 1/2" | 5 3/4" | Steel | No | 2 | 3/16" | 00000000 | 00000 |
| 6V DC, 8V AC | 1 A @ 6 V DC, 1 A @ 8 V AC | 90 dBA @ 10 ft. | Continuous | 4" | 6 7/8" | Steel | No | 2 | 3/16" | 00000000 | 00000 |
| 24V AC | 0.2 A @ 24 V AC | 74 dBA @ 10 ft. | Continuous | 6" | 10 5/8" | Steel | No | 3 | 1/4" | 00000000 | 000000 |
| 24V AC | 0.2 A @ 24 V AC | 68 dBA @ 10 ft. | Continuous | 4" | 7 3/8" | Steel | No | 3 | 1/4" | 00000000 | 000000 |