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Marsh Bellofram Diversified Electronics Division AC-505-5 Series HVAC Delay-On-Break Timer

Marsh Bellofram Diversified Electronics Division AC-505-5 Series HVAC Delay-On-Break Timer

Product catalog summary

Overview: The AC-505-5 is a Delay-On-Break Timer designed to provide short cycle protection for compressors by locking them out for a specified period after a voltage or thermostat interruption. This ensures that the compressor does not restart immediately, preventing potential damage from frequent cycling.

Key Features:

Short cycle protection with a fixed delay period that does not extend with subsequent interruptions.
Maintains temperature control as the delay begins immediately upon interruption.
Typically, the compressor off time exceeds five minutes, so the timer does not extend the off cycle under normal conditions.
Simple installation with a two-wire connection in series with the control voltage and relay.
Provides true thermostat interruption protection even with continuous current flow through the thermostat's cooling anticipator.

Specifications:

Control Voltage: 24 VAC
Output Rating: 250 VA Inrush; 25 VA Run at 24 VAC at 77°F
Time Delay: 5 minutes ±20%
Dimensions: 2.65" x 2.13" x .875" high
Weight: 3 oz.

Ordering Information:

Model Number: AC-505-5
Description: Delay-On-Break Timer

Catalog excerpts

Marsh Bellofram Diversified Electronics Division AC-505-5 Series HVAC Delay-On-Break Timer-1

800.727.5646 atcdiversified.com Diversified Electronics AC-505-5 Series 267 Del a y - O n -B r e a k T i m er The AC-505-5 provides short cycle protection by locking out the compressor for a period of time after a voltage or thermostat interruption. Subsequent interruptions will not increase the delay period. Since the delay begins when the interruption occurs, the temperature control is not affected. Under normal operating conditions, the compressor off time is longer than five (5) minutes. In this case, the use of these timers will not lengthen this off cycle. This is an easy to install, two (2) wire Short Cycle Timer that connects in series with the control voltage and control relay. The AC-505 is engineered to provide true thermostat interruption protection even when there is continuous current flow through the thermostat’s cooling anticipator. HVAC Controls // AC-505-5 Series \\\ORDERING INFROMATION MODEL NUMBER DESCRIPTION AC-505-5 Delay-On-Break Timer \\\SPECIFICATIONS CONTROL VOLTAGE 24 VAC OUTPUT RATING 250 VA Inrush; 25 VA Run @ 24 VAC @ 77°F TIME DELAY 5 min. ±20% DIMENSIONS 2.65" x 2.13" x .875" high. WEIGHT 3 oz. \\\WIRING

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