THR-3 Series

Encapsulated

Four Functions & Four Time Ranges in Each Product

Dual Time Product Allows Different ON & OFF Times

Easy Programming of Function & Time Delay

Overview
Operation
Knowledge Base
Builder

Features	Three Catalog Numbers Offer All These Features: Multi-Function: 4 common time delay functions in each one Universal Voltage: 24-240VAC & 12-125VDC Time Ranges: 0.1 Sec to 100 Minutes (1,000 Minutes on Dual Time product) Onboard & remote adjust of time delay (remote adjust not offered on THR-3856U) THR-3856U allows different ON & OFF times Cost effective design & compact 2" x 2" enclosure Encapsulated for protection against harsh environments 10A SPDT relay output contacts can handle most pilot duty & fractional HP loads
Enclosure Style	Encapsulated 2" x 2" enclosure with single screw mounting
Configuration/ Contact Rating	SPDT 10A @ 240VAC / 7A @ 28VDC, 1/4hp @ 120VAC (N.O.)
Approvals	UL File #E109466
Technical Documentation	Catalog Pages Instruction Sheet

Operation:

The THR-3 Series products are designed to replace thousands of products from Macromatic and many other manufacturers with just three Catalog Numbers. Each comes with four functions & four timing ranges covering 0.1 second to 100 minutes (1,000 minutes on THR-3856U dual time unit). On the same unit, choose between onboard adjustable, onboard fixed & remote adjustable time delay setting (remote time delay not available on THR-3856U). All set up is done with DIP switches for ease of use. A universal input voltage of 24-240V AC & 12-125V DC adds to the ultimate flexibility of these products. All products are encapsulated for protection against harsh elements. A 10A SPDT relay output rating can handle most pilot duty & fractional HP loads.

Macromatic's Time Delay Relays Knowledge Base contains general and technical industry articles to help you learn more about Time Delay Relays.

This process will assist you in selecting the correct product for your application. Just answer the following questions and we will lead you to the product best suited for your needs. Should you require additional assistance, contact Macromatic Technical Support at 800-238-7474.

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Plug-in: used with 8 or 11 pin octal sockets. Allows for easy replacement without having to remove any control wiring. Macromatic sockets can either be mounted on 35mm DIN track or to the panel with two screws. All Macromatic plug-in time delay relays are UL Component Recognized (UR) & most are UL Listed when used with the appropriate Macromatic socket.
Encapsulated: typically selected when low-cost and/or compact size is preferred. Also used when solid state output is required for high-duty cycle applications. All products are encapsulated for protection against harsh environments. All Macromatic encapsulated time delay relays are UL Component Recognized (UR).
1/16 DIN: normally selected when the application calls for accessibility of the display and/or switches without opening the panel door. The product is mounted in the door and uses back-mounted sockets for wiring. However, they can also be base or track-mounted using a standard octal socket. All Macromatic 1/16 DIN time delay relays are UL Listed.
17.5mm Modular: narrow compact design is ideal for saving space in control panels. These products are designed for easy snap-on mounting to 35mm DIN track. All Macromatic 17.5mm time delay relays are cULus Listed.

Click on the appropriate photo to learn more about the specific product offerings:


Plug-in	Encapsulated	1/16 DIN	17.5mm Modular

Four Functions & Four Time Ranges in Each Product

Dual Time Product Allows Different ON & OFF Times

Easy Programming of Function & Time Delay