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Marsh Bellofram Diversified Electronics Division TDC/TUC Series ON-Delay Relay Output

Marsh Bellofram Diversified Electronics Division TDC/TUC Series ON-Delay Relay Output

Product catalog summary

Specifications
The document outlines the specifications for a time delay relay, including virtually unlimited timing ranges with standard ranges available on page 84. The output rating is DPDT, 10 A at 250 VAC or 24 VDC, resistive, and 211 VA at 120 VAC, inductive. Timing tolerances are specified as +0–20% for minimum setting and ±10% for maximum setting, with a repeatability of 1% maximum and no first cycle effect. Reset times are 100 mSEC before timeout and 50 mSEC after timeout, with a recycle time of 40 mSEC. The supply voltage options are 24 or 120 VAC or VDC, 50/60 Hz, with a tolerance of ±10%. The TUC Series is available in 120 Volts only. The device is protected against reverse polarity and has a power consumption of approximately 3 watts. It operates continuously within a temperature range of 32° to 131°F (0° to +55°C) and can be stored between -49° to 185°F (-45° to +85°C). The mechanical life expectancy is 10 million operations minimum, and electrical life expectancy is 100,000 operations at rated load. The weight is 5 oz.

Operation
The time delay relay begins its delay when power is applied to the input. Upon completion of the delay period, the relay energizes. Resetting during or after the delay period is achieved by removing the input voltage. The TDC/TUC will not false transfer if voltage is removed before the delay period completes. It features a fast recycle time for accurate, high-speed, continuous operation.

Wiring and Model Numbering
The document provides a model numbering system for the TDC/TUC series, detailing options for relay output, supply voltage, type of operation, and enclosure style. Examples include TUC-120-AKA-900, which is a delay on operate model with 120 Volts AC or DC, knob adjustable from 9 to 900 seconds, and an 8-pin octal plug-in. Notes specify that the TUC series is offered in 120 Volts, style A enclosure only, with optional types of operation K, L, or F, and is CSA certified. TDC models using the 'R' option are not UL Recognized and are not offered in the TUC series or style B enclosure.

Catalog excerpts

Marsh Bellofram Diversified Electronics Division TDC/TUC Series ON-Delay Relay Output-1

\\\DIMENSIONS (INCHES) \\\SPECIFICATIONS TIMING RANGES Virtually unlimited. See page 84 for standard ranges available. OUTPUT RATING DPDT, 10 A @ 250 VAC or 24 VDC, resistive; 211 VA @ 120 VAC, inductive TIMING TOLERANCES Minimum Setting +0–20% Maximum Setting ±10% REPEATABILITY 1% maximum; no first cycle effect RESET TIMES Before Time Out 100 mSEC After Time Out 50 mSEC RECYCLE TIME 40 mSEC SUPPLY VOLTAGE 24 or 120 VAC or VDC, 50/60 Hz; ±10% (TUC Series available in 120 Volts only) FALSE TRANSFER No REVERSE POLARITY PROTECTED Yes POWER CONSUMPTION 3 watts (approximately) DUTY CYCLE Continuous 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 5 oz. TDC/TUC Series Diversified Electronics atcdiversified.com 800.727.5646 70Time Delay Relays // TDC/TUC Series The time delay begins when power is applied to the input. Upon completion of the delay period, the relay energizes. Reset during or after the delay period is accomplished by removal of the input voltage. The TDC/TUC will not false transfer if voltage is removed prior to completion of the delay period. A fast recycle time permits accurate, high speed, continuous operation. O N - D e l a y Re l a y O ut p u t * SUPPLY VOLTAGE OUTPUT TIME DELAY RB-08/PF083A RB-11/PF113A 70-463-1 \\\WIRING MODEL NUMBER >>>>>> T C A Series D 24 K A Relay output Relay Output with CSA U* Supply Voltage 24 Volts AC or DC 110/120 Volts AC or DC 120 Type of Operation Knob Adjustable Lock Nut Adjustable L Fixed F External Resistor Adjustable R** Enclosure Style 8 or 11-pin octal plug-in Blade plug-in B Delay Period See page 84 for standard ranges available Example: TUC-120-AKA-900—Delay on operate, 120 Volts AC or DC, knob adjustable from 9 to 900 seconds, 8-pin - octal plug-in Notes: * The TUC series is offered in 120 Volts, style A enclosure only with optional types of operation K, L, or F. CSA certified, File #LR40123 ** TDC models using the “R” option are not UL Recognized. The “R” option is not offered in the TUC series or the style B enclosure. TDC models using "F", "K", or "L" options and in the 8-pin octal plug is only available in 24-volts. \\\OPERATION

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