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Marsh Bellofram Diversified Electronics Division TDT Series True-OFF Delay Relay Output

Marsh Bellofram Diversified Electronics Division TDT Series True-OFF Delay Relay Output

Product catalog summary

Overview: The TDT Series is a line of time delay relays offered by Diversified Electronics. These relays are designed for true OFF-delay operation, meaning the relay de-energizes after a set delay period once the input voltage is removed.

Specifications:

Output Rating: DPDT, 10 A, 1/6 HP at 240 VAC; 211 VA at 120 VAC, inductive.
Timing Tolerances: Minimum setting +0–20%, Maximum setting ±10%.
Repeatability: 1%.
Reset Times: 0.5 seconds.
Supply Voltage: Options include 24, 110/120, or 208/240 VAC, 50/60 Hz, or VDC; and 48 VDC; with a tolerance of ±10%.
False Transfer: No.
Reverse Polarity Protection: Yes.
Power Consumption: Approximately 3 watts.
Temperature Rating: Operating range from 32° to 131°F (0° to +55°C), Storage range from -49° to 185°F (-45° to +85°C).
Life Expectancy: Mechanical: 10 million operations (minimum), Electrical: 100,000 operations at rated load.
Weight: Approximately 4.5 oz.

Operation: When voltage is applied, the relay energizes. Upon removal of voltage, the OFF delay begins, and the relay de-energizes after the delay period. Reset occurs by reapplying voltage to the input terminals. If voltage is reapplied during the delay, the relay remains energized, and the timer resets to zero. Voltage must be applied for at least 0.5 seconds to ensure proper operation.

Model Configuration: The model number TDT-120-ALA-300 indicates a true delay on release relay with 110/120 Volts AC or DC, lock nut adjustable from 3 to 300 seconds, and an 8-pin octal plug-in.

Catalog excerpts

Marsh Bellofram Diversified Electronics Division TDT Series True-OFF Delay Relay Output-1

800.727.5646 atcdiversified.com Diversified Electronics TDT Series Time Delay Relays // TDT Series 81 Tr u e OF F -Dela y R e l a y Ou t p ut RB-08/PF083A 70-463-1 MODEL NUMBER >>>>>> TDT Supply Voltage 24 A K A 010 24 VAC or DC 48 Volts DC 48 110/120 VAC or DC 120 208/240 VAC or DC 240 Type of Voltage AC and DC operation DC operation only (D Designation used for 48V model only) D Type of Operation Knob Adjustable Lock Nut Adjustable L Fixed F Enclosure Style 8-pin octal plug-in Blade plug-in B Delay Period 010 = .1 to 10 SEC 030 = .3 to 30 SEC 030 060 = .6 to 60 SEC 060 100 = 1 to 100 SEC 100 200 = 2 to 200 SEC 200 300 = 3 to 300 SEC 300 Example: TDT-120-ALA-300—True delay on release, 110/120 Volts AC or DC, lock nut adjustable from 3 to 300 seconds, 8-pin octal plug-in. \\\WIRING \\\DIMENSIONS (INCHES) \\\SPECIFICATIONS OUTPUT RATING DPDT, 10 A 1/6 HP @ 240 VAC; 211 VA @ 120 VAC, inductive TIMING TOLERANCES Minimum Setting +0–20% Maximum Setting ±10% REPEATABILITY 1% RESET TIMES .5 seconds SUPPLY VOLTAGE 24 or 110/120 or 208/240 VAC, 50/60 Hz, or VDC; and 48 VDC; ±10% FALSE TRANSFER No REVERSE POLARITY PROTECTED Yes POWER CONSUMPTION 3 watts (approximately) TEMPERATURE RATING Operate 32° to 131°F (0° to +55°C) Storage -49° to 185°F (-45° to +85°C) LIFE EXPECTANCY Mechanical 10 million operations (minimum) Electrical 100,000 operations @ rated load WEIGHT 4.5 oz. (approximately) When voltage is applied to the input, the relay energizes. When voltage is removed, the OFF delay begins. Upon completion of the delay period, the relay de-energizes. Reset is accomplished by reapplying voltage to the input terminals. NOTE: If voltage is reapplied during the delay period, the relay remains picked up and the timer resets to zero. VOLTAGE MUST BE APPLIED FOR A MINIMUM OF 0.5 SECONDS TO ASSURE PROPER OPERATION. \\\OPERATION SUPPLY VOLTAGE OUTPUT TIME DELAY

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