Wiring, End Elements | Chromalox DU-RAD-458 6.04 757 specs

WIRING

ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property dam- age. Heater must be installed by a qualified person in accordance with the National Electrical Code, NFPA 70.

ELECTRIC SHOCK HAZARD. Any installation involv- ing electric heaters must be performed by a quali- fied person and must be effectively grounded in accordance with the National Electrical Code to eliminate shock hazard.

1.The power supply voltage should be the voltage as specified on the heater nameplate located on the heater housing.

2.Wiring should be run in flexible or rigid metal conduit and must be installed in accordance with the requirements of the National Electrical Code and such other local requirements as may be applicable. Note: High temperatures will oxidize copper. Do not use copper wire in connecting this heater. Nickel-plated copper wire, insulated in accordance with requirements for temperature and voltage is recommended.

3.A sufficient length of this wire (not less than 12”) should be used to extend from each heater terminal into a connection box location where the temperature does not exceed 300˚F.

4.ELECTRICAL CONNECTIONS —

A.End Elements

Electrical connection to the heater end elements is made through the 7/8” dia. opening in the end of the terminal cover of the element assembly. A 1/2” flexible conduit connector is provided with each element assembly for this purpose.

B.Center Elements

Electrical connection to the heater center element is made through the 7/8” dia. opening in the 4” octagon conduit box for the element assembly. A 1/2” flexible conduit connector is pro- vided with each element assembly for this purpose.

5.ACCESS TO TERMINALS

A.End Elements

Access to the end element terminals is obtained by removing the mounting bolt, nut and spacer (see Figure 9, items 9, 16 and 18) and sliding the terminal end of the element assembly out of the housing.

B.Center Elements

Access to the center mounted element terminals is obtained by removing the terminal box cover.

6.END ELEMENT TERMINAL ASSEMBLY

Assemble end terminal, screw and wire as shown in Figure 5. Hold terminal with pliers and tighten the terminal screw securely with a screwdriver.

Figure 5 — End Element Terminal Assembly

7.CENTER ELEMENT TERMINAL ASSEMBLY

Assemble center terminal, washers, nut and wire as shown in Figure 6. Hold terminal with pliers and tighten the terminal nut securely with a wrench.

Figure 6 — Center Element Terminal Assembly

CAUTION: Terminal clip is spot-welded to element terminal pin and over-tightening terminal screw may break the weld or shear off terminal pin. However, either the screw or nut should be suffi- ciently tightened to eliminate arcing.

8.SERIES CONNECTION of Radiant Heaters of equal volt and watt rating is permitted in all line voltages up to 600 volts. In mak- ing such series connections it is necessary to observe the “right” (series-parallel) connection rather than the “wrong” (parallel- series) connection both shown in Figure 7. If heaters are connect- ed according to the “wrong” illustration, failure of any heater will cause progressive failure of other heaters still operating.

	Wrong	Right
	Radiant
	Heaters
	L1	L1
	L2	L1
	L2	L2

Figure 7

9.DELTA CONNECTIONS — When heaters occur in multiples of three, they may be connected to, and balanced across, three-phase lines. The most commonly used connection is the delta connection illustrated in Figure 8.

	Wrong	Right
	Radiant
	Heaters
	L1	L1
	L2	L1
	L2	L2

Figure 8

Three phase Delta connections to minimize inductive effect in conduits are made per this diagram. The rule: run all 3 three-phase conductors in the same conduit as far as possible. For single-phase, run only two conductors and follow the same rule.

DU-RAD-458 6.04 757 specifications

The Chromalox DU-RAD-458 6.04 757 is a cutting-edge heating solution that exemplifies the company’s commitment to innovation and efficiency in industrial heating applications. This model is designed primarily for use in demanding environments where temperature control is paramount. With its robust construction and advanced functionality, it stands out in the market.

One of the main features of the DU-RAD-458 is its exceptional temperature regulation capability. It comes equipped with advanced control technologies that ensure precise temperature management. Users can achieve consistent heating across a variety of applications, from industrial processing to laboratory settings. The model's ability to maintain stability even in fluctuating conditions is critical for industries that require stringent temperature adherence.

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Durability is another key characteristic of the DU-RAD-458 6.04 757. Constructed from high-quality materials, it is built to withstand harsh operational environments. Its robust design ensures that it can handle the rigors of industrial use while maintaining peak performance. This reliability translates to lower maintenance needs, allowing companies to focus on productivity rather than frequent repairs or replacements.

The DU-RAD-458 also features a user-friendly interface, making it accessible for operators of varying experience levels. Its intuitive controls streamline operation, ultimately improving workflow and efficiency in high-stakes settings. Additionally, the device supports various networking options, providing flexibility in integration with existing control systems.

Moreover, the unit is designed with safety in mind. Equipped with multiple safety features, including over-temperature protection and alarms, the DU-RAD-458 ensures that personnel and equipment remain protected during operation.

In summary, the Chromalox DU-RAD-458 6.04 757 is an advanced heating solution characterized by precise temperature control, energy efficiency, durability, user-friendly operation, and enhanced safety features. It is a valuable addition to any industrial setting that demands reliability and performance.