Honeywell 05701-A-0405 AC-to-DC Power Supply Unit

FAQ

Q1: What is the Honeywell 05701-A-0405 used for?
A: The 05701-A-0405 supplies regulated DC power to Honeywell System 57 gas and fire detection equipment. It is designed for 16-way System 57 racks.

Q2: What is the power rating of the 05701-A-0405?
A: The standard power supply is rated at 50 W. The unit can be upgraded by adding additional 50 W power-supply modules.

Q3: What input voltage does the 05701-A-0405 support?
A: It accepts 85–264 V AC at 47–440 Hz. It can also operate from a 110–340 V DC input.

Q4: What output voltage does the power supply provide?
A: The unit provides a nominal 24 V DC output, with a specified tolerance of approximately ±10%.

Q5: Can the 05701-A-0405 be upgraded to a higher power rating?
A: Yes. Honeywell specifies that the 16-way power supply can be upgraded to 100 W by adding another 50 W module. A further subunit can be installed to increase the available power to 150 W or 200 W, depending on the configuration.

Q6: What protection functions are provided?
A: The power supply includes overload and overvoltage protection. The overload protection automatically recovers after the overload condition is removed.

Q7: How is the 05701-A-0405 installed?
A: It is installed as a 1U-high, 19-inch rack-mounted power supply within a Honeywell System 57 installation.

Q8: What are the dimensions and weight of the 05701-A-0405?
A: The unit is approximately 482.6 × 44.5 × 250 mm and weighs approximately 0.96 kg in the standard 16-way, 50 W configuration.