31 - 3R/4R

31 - 3R/4R

Product catalog summary
Specifications:
The document outlines the specifications for medium power industrial relays, specifically the 3R and 4R series. These relays are CSA Certified and designed for compact high performance with direct panel mounting facilities. They are available with 1 Form C, 2 Form C, and 3 Form C contact arrangements, using silver alloy as the contact material. The rated voltage is 230VAC/24VDC, with a maximum voltage of 440VAC/220VDC and a maximum current of 10A. The relays have a nominal coil power of 1.1 Watts and an operating power of 0.7 Watts.

Coil Data:
The coil data includes nominal voltages ranging from 6V to 230V, with corresponding coil resistances and pick-up voltages for both AC and DC. For example, a 230V nominal voltage has a coil resistance of 30,000 Ohms and a pick-up voltage of 184V.

Relay Socket Assembly:
The relay socket assembly includes a socket terminal layout with specific terminal sets for different relay configurations. The dimensions are provided in millimeters, and the assembly includes a retaining clip.

Performance and Durability:
The relays are designed for industrial control, instrumentation, automation, battery chargers, and power conditioning equipment. They have a dielectric strength of 2000 VRMS between contacts and an insulation resistance of 500M Ohms at 500VDC. The operating temperature range is -40°C to +70°C, and the relays have a mechanical life expectancy of 10 operations.

Ordering Information:
The ordering code is structured as follows: Product Series - Number of Poles - Nominal Voltage - Specialties. For example, 3R-3-230-XXX indicates a 3R series relay with 3 poles and a nominal voltage of 230V.

Additional Features:
Optional features include a free-wheeling diode, DIN rail mounting socket, and LED indication. The relays are suitable for both AC (3R) and DC (4R) applications.
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Catalog excerpts

31 - 3R/4R-1

31 - 3R/4R MEDIUM POWER INDUSTRIAL RELAY • • • • • • • CSA Certified (file number 106405-1) Compact High Performance Direct Panel Mounting Facility 1 Form C, 2 Form C & 3 Form C Contacts Free Wheeling Diode DIN Rail Mounting Socket Available LED Indication Optional COIL DATA : 1 Form C, 2 Form C 3 Form C Rated Breaking Capacity Nominal Coil Power Product Series 3R : AC Relay 4R : DC Relay Dielectric Strength SOCKET TERMINAL LAYOUT Between Open Contact Nominal Voltage (Refer coil data) Contact Resistance Operating Power Rated Voltage Coil Resistance Ohms ± 10% Contact Rating Coil Resistance Ohms ± 10% : Silver alloy Contact Material Contact Arrangement Between Contacts and Coil : 2000 VRMS : 500M Ohms@ Release time at Nominal Voltage RELAY SOCKET ASSEMBLY Operate time at Nominal Voltage RELAY RETAINING CLIP Typical applications Industrial Control, Instrumentation, Automation, Battery Chargers, Power Conditioning Equipments. Note : For 1 C/O Relay use terminal set 7,8 & 9 For 2 C/O Relay use terminal set 4,5,6 & 10,11,12 In case of Relay with clamping diode, take 2 as positive Ambient Temperature Insulation Resistance All dimensions are in mm. Specifications subject to change without notice.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.