Omron MY2N-GS DPDT Miniature Power Relay with LED

MY2N-GS: 2-pole plug-in power relay with LED and flag indicators

The Omron MY2N-GS is a miniature 8-pin plug-in power relay with two changeover contacts, a built-in LED operation indicator and a mechanical contact-position indicator. It is the 2-pole member of the MY-GS line, a design that has long been a standard choice for general control circuits in panels. Seven Star LLC supplies the MY2N-GS in Oman and the GCC as an independent supplier in Muscat, and the sections below explain the code, the coil options and the points to confirm when ordering.

• MY is the miniature power relay series with octal-style plug-in pins.
• 2 means two poles (DPDT) and an 8-pin socket; 4 would mean four poles and 14 pins.
• N means an LED operation indicator in addition to the built-in mechanical indicators.
• No I means there is no latching lever, and no D or CR means no coil surge-absorbing part in the relay.
• GS is the series suffix of this version; the datasheet ordering list shows an -R suffix and the coil voltage, for example DC24.

The LED colour tells you the coil type at a glance: red for AC coils and green for DC coils, while the mechanical indicator shows whether the contacts are made, even with the coil power off.

MY2N-GS technical specifications

All values come from the Omron MY-GS datasheet. The relay is an initial-value rating; real life depends on load type, switching frequency and ambient temperature.

How MY2N-GS works and what the indicators show

When the coil is energised the armature closes the movable contacts onto the normally open fixed contacts and releases them when power is removed. The MY2N-GS carries two independent sets of changeover contacts on one armature, so one relay can switch two circuits at once or feed one load through two series contacts.

The front carries a mechanical indicator on each side that moves with the contacts, plus a LED that glows while the coil is energised. This is useful in fault finding, because a lit LED with indicators that do not move points to a stuck armature, while an indicator that moved with no LED hints at a coil path or LED circuit issue. The LED is also what makes the DC coil current slightly higher than the same coil without LED.

Coil ratings for MY2N-GS

The MY2N-GS is sold with either AC or DC coils and the rating must be given with the order. The tables list the standard values; those marked with brackets are for LED models like this one.

AC coil data from the datasheet (rated current measured at 23°C):

DC coil data from the datasheet (values in brackets are for models with LED indicators):

Must-operate voltage is 80% of rated voltage maximum for AC coils (30% minimum must-release) and the same 80% maximum for DC coils with 10% minimum must-release. Maximum voltage is 110% of rated. For specified characteristics, apply the rated voltage to the coil.

Sockets and related parts for MY2N-GS

The MY2N-GS plugs into 8-pin sockets of the PY and PYF families. For new work, the Push-In Plus PYF-08-PU removes the need for screw terminals, and the datasheet states a 60% reduction in wiring time compared with the earlier approach, based on Omron measurements. The 4-pole MY4N-GS needs a 14-pin socket instead. The latching-lever MY2IN-GS and the CR-fitted MY2N-CR-GS share the same footprint.

Sockets are ordered separately. The datasheet also mentions the PYC-A1 and PYC-P retaining parts for joining socket and relay, and notes that a relay with a latching lever and a PCB-terminal socket need the PYC-P mounting bracket to be checked first.

Selection and ordering checklist for MY2N-GS

Settle the following before requesting a quotation for MY2N-GS.

• Choose AC or DC coil and the exact voltage; the LED colour will follow the coil type.
• Check that two poles suffice. If four circuits are needed, use MY4N-GS and a 14-pin socket.
• Compare load with 10 A at 250 VAC and the inductive ratings; for motor or solenoid loads review the inductive column.
• Decide if a latching lever (MY2IN-GS) or coil surge protection (D1/D2 diode, or CR) is required.
• Specify the socket and its mounting (DIN rail, PCB or Push-In Plus).
• Check ambient temperature, noting the LED models have a −40°C lower limit.

Installation, commissioning and maintenance of MY2N-GS

Plug the MY2N-GS into its socket and retain it with the socket spring or clip supplied. Check the pin numbering printed on the relay body against the terminal drawing before wiring.

• Use the correct coil voltage; a 24 VDC coil must not be driven from a 24 VAC supply or vice versa.
• Observe polarity on DC coils with built-in diode types only; the plain version is not polarity-sensitive in operation.
• For inductive loads add external suppression close to the load.
• Verify contact position with the mechanical indicator during commissioning.
• As a maintenance routine, replace relays at the end of the expected electrical life for the duty or at planned shutdowns for critical circuits.

Typical MY2N-GS applications in Oman and the GCC

MY-GS relays of this type serve as interposing relays between PLC outputs and contactors, as annunciator and trip-circuit repeat relays, and as logic elements in older relay-based control panels. In Oman and the GCC they are found in pump and fan control centres, fire and gas panel interfaces and packaged-skid junction boxes.

High ambient temperature inside outdoor panels shortens relay life, so the 70°C upper limit of the family should be compared with measured temperature at the DIN rail. Dust-sealed enclosures and clean sockets are worth the effort in desert sites.

MY-GS family compared with MY2N-GS

The MY-GS series covers several versions of the same relay body. This table shows where MY2N-GS sits among them.

Information to send with an RFQ for MY2N-GS

• Part number MY2N-GS, coil type and voltage.
• Quantity of relays and of sockets.
• Load voltage, current and type.
• Socket mounting preference.
• Any need for latching lever or surge protection.
• Delivery location.

Documents and quotation

A datasheet for the MY-GS series is attached on this page with the model legend, coil data, contact ratings, certified ratings, socket list and precautions relevant to MY2N-GS.

Seven Star LLC is an independent supplier in Muscat and is not affiliated with the manufacturer. Send the part number MY2N-GS with the coil voltage and quantity, and we will confirm availability and lead time for Oman and the GCC.