Omron G2R-2-S DPDT 5 A Slim Plug-In Power Relay

G2R-2-S: slim two-pole 5 A plug-in relay

The Omron G2R-2-S is the two-pole version of the slim G2R power relay. It offers two changeover contacts rated 5 A each in the same slim body as the single-pole model, with a mechanical indicator and nameplate. Seven Star LLC supplies the G2R-2-S in Oman and the GCC as an independent supplier in Muscat. The sections below set out the decoding, ratings and checklist for this part.

• G2R is the slim general-purpose power relay series.
• 2 means two poles (DPDT) and an 8-pin footprint.
• S means plug-in terminals.
• No further letter means no LED and no diode.
• The rated coil voltage and (S) are added to the order code, for example G2R-2-S 24 VDC (S).

Two poles allow a relay to switch a load and give a separate status or interlock contact, which is often the deciding factor between this and the single-pole model.

G2R-2-S technical specifications

Values come from the Omron datasheet. The 2-pole relay has lower per-pole ratings than the 1-pole model, so check the load carefully.

How G2R-2-S switches and what the options add

The G2R-2-S moves two changeover contacts together from a single coil and armature. They are electrically separate, with 3,000 VAC withstand between poles of different polarity and 5,000 VAC between coil and contacts.

A mechanical flag shows the position of the contacts. As there is no LED, the mechanical flag is the only visual indication unless you move to the G2R-2-SN or G2R-2-SND. The relay releases within 15 ms for AC coils and 10 ms for DC coils, according to the datasheet.

Coil data for G2R-2-S

The same AC and DC coil options as on other G2R-S relays are available. Rated current is measured at 23°C.

Must-operate voltage is 80% max. of rated for AC coils and 70% max. for DC coils; must-release voltage is 30% max. for AC and 15% min. for DC. Maximum voltage is 110% of rated. Power consumption is approx. 0.9 VA at 60 Hz for AC and approx. 0.53 W for DC.

Sockets and related parts for G2R-2-S

The 8-pin socket P2RF-08-PU gives Push-In Plus wiring; P2RF-08, P2RF-08-E and P2RFZ-08-E are screw types and P2R-08P, P2R-087P and P2R-08A are PCB or solder types. The single-pole G2R-1-S uses 5-pin sockets. Options for LED and diode (G2R-2-SN, G2R-2-SND) share this base.

Accessories listed with the series include short bars, label sheets (XW5Z-P4.0LB1 for Push-In Plus and XW5Z-P2.5LB1 for screw sockets), mounting tracks PFP-50N, PFP-100N and PFP-100N2, end plate PFP-M and spacer PFP-S. P2RF-@-E sockets are finger-safe and require forked, not round, crimp terminals.

Selection and ordering checklist for G2R-2-S

Confirm the following before requesting a quotation for G2R-2-S.

• Confirm two circuits are needed and that 5 A per pole is enough; use G2R-1-S if you need 10 A on one pole.
• Select AC or DC coil and the voltage.
• Compare load against 5 A at 250 VAC / 30 VDC, and 2 A at 250 VAC inductive.
• Choose an 8-pin socket type.
• Decide on LED or diode versions.
• Consider the 380 VAC maximum switching voltage when switching three-phase control circuits.

Installation, commissioning and maintenance of G2R-2-S

Seat the G2R-2-S in its 8-pin socket and check pin numbers against the terminal diagram. Maintain space between relays at full load.

• Check AC or DC coil marking before energising.
• Use the mechanical flag for simple tests.
• Add suppression at inductive loads.
• Do not exceed 110% of rated coil voltage.
• Keep spares of both AC and DC types if both are used on site.

Typical G2R-2-S applications in Oman and the GCC

G2R-2-S relays are used as interface relays between PLC outputs and field devices, for signal duplication and for control of small contactors and solenoid valves. In Oman and the GCC they are typical in HVAC controllers, pump control panels and skid-mounted packages where two isolated contacts are required.

Panels in hot environments should keep relays away from heat sources such as power supplies and resistors, and should use the full-voltage rating of the coil rather than undervolting.

For two-pole relays it is good practice to keep the two circuits at similar voltage levels, or at least to check the insulation between poles against the 3,000 VAC rating given in the datasheet. Where one pole carries a mains-level load and the other carries a low-voltage signal, use the outer terminals of each pole and keep wiring segregated. Labelling each pole on the panel schematic prevents cross-wiring when relays are exchanged during maintenance shutdowns. Because the relay body is slim, several units sit side by side on a DIN rail, and the heat from neighbours adds up when all coils are energised for long periods. Leave a small gap or use fewer relays per rail section if the cabinet is already warm, and consider that a relay held energised for years ages faster than one that switches occasionally, so critical circuits deserve a planned replacement interval.

G2R-S family compared with G2R-2-S

The G2R-S range is built from one body with a set of options added through the suffix letters. The table shows the available combinations, with G2R-2-S highlighted by its row.

Information to send with an RFQ for G2R-2-S

• Part number G2R-2-S with coil type and voltage.
• Quantity of relays and sockets.
• Load on each pole.
• Socket type.
• Panel temperature.
• Delivery location.

Documents and quotation

A datasheet for the G2R-S series is attached on this page, covering the model legend, coil and contact data, approved standards, sockets and precautions for G2R-2-S.

Seven Star LLC is an independent supplier in Muscat and is not affiliated with the manufacturer. Send the part number G2R-2-S with the coil voltage and quantity, and we will confirm availability and lead time for Oman and the GCC.