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ATC Diversified



ATC Timing & Controls and Diversified Electronics are both divisions of Marsh Bellofram. For over 50 ATC Diversified has offered some of the industry's highest reliability AC current monitors, motor and pump protection, isolated switches and alternation relay products. As a pioneer in phase monitor relay design, ATC Diversified can protect equipment from adverse conditions such as phase lose, brown-outs and improper sequencing.

The Automatic Timing & Controls division produces high quality, highly rugged timers and controls to provide accurate and repeatable timing and monitoring of operations in all types of industrial environments. Engineers and maintenance personnel turn to the quality and dependability of ATC Diversified. Check out our in-stock products below or contact us for a quote on anything in the ATC line.


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ATC Diversified ARA-120-ABA ATC Diversified ARB-120-ABA ATC Diversified ARA-120-ADA
The Duplexor is used in control panels where two loads are required to alternate to provide equal run time on the loads. The Duplexor is used in control panels where two loads are required to alternate to provide equal run time on the loads. The Duplexor is used in control panels where two loads are required to alternate to provide equal run time on the loads.
ATC Diversified TDD-120-AKA-600 ATC Diversified ARA-120-ACA ATC Diversified TSL-120-ARC-100
110/120 Volts AC or DC, Knob Adjustable, 8 or 11-Pin octal plug-in, 6-600 Sec The Duplexor is used in control panels where two loads are required to alternate to provide equal run time on the loads. 120 VAC, 10 to 100 adj. Flash rate
ATC Diversified SLA-230-ASA ATC Diversified TUC-120-AKA-010 ATC Diversified TDU-120-AKA
TDU-120-AKA; UNITIMER
Our Price: $91.00
PLUG-IN, 190-270V, SPDT, 345 VA Inductive; 10 Amps Resistive @ 240 VAC, SCREWDRIVER ADJUSTMENT Relay Output with CSA, 110/120 Volts AC or DC, Knob Adjustable, 8 or 11-Pin octal plug-in, .1 to 10 seconds TIME DELAY RELAY, SPDT, 120V; Contact Configuration:SPDT; Nom Input Voltage:120V; Timing Adjustment:Knob; Relay Mounting:Panel
ATC Diversified SLA-440-ASA ATC Diversified TDJ-120-AKA-600 ATC Diversified TBF-120-AAA
PLUG-IN, 430-480V, SPDT, 360 VA Inductive; 10 Amps Resistive @ 240 VAC, SCREWDRIVER ADJUSTMENT 110/120 Volts AC or DC, Knob Adjustable, 8 or 11-Pin octal plug-in, 6-600 Sec 120 Volts AC/DC, 0.1 to 102.3 Seconds in 0.1 Sec. Increments
When supply voltage is applied to the input, the OFF time (T1) begins. Upon completion of the OFF time, the relay energizes and the ON time (T2) begins. Upon completion of the ON time, the relay de-energizes and one cycle is complete. This OFF/ON cycling continues until supply voltage is removed from the input. The OFF/ON time periods are independently selectable within the same range.
ATC Diversified TBF-120-ADA ATC Diversified TDI-24-AKA-030-010 ATC Diversified PRT-100
120 Volts AC/DC, 0.1 to 102.3 Minutes in 0.1 Sec. Increments 24 Volts AC or DC, Knob Adjustable, 11 -Pin octal plug-in, .3 to 30 seconds. Takes the Guesswork out of Connecting Three-Phase Motors
  • Detects Sequence of 3-Phase Power Line for Proper Motor Wiring
  • Detects Phase Loss & No Voltage Conditions
  • Works on Voltages up to 700VAC
ATC Diversified SLA-230-ALE ATC Diversified SLA-440-ALE
SURFACE MOUNT, 190-270V, DPDT, 345 VA Inductive; 5 Amps Resistive @ 240 VAC, AUTOMATIC RESET. SURFACE MOUNT, 430-480V, DPDT, 360 VA Inductive; 3 Amps Resistive @ 600 VAC, AUTOMATIC RESET.