Omron MY2N-CR-GS AC Relay with Built-In CR Surge Circuit

MY2N-CR-GS: AC-coil relay with a built-in CR absorber

The Omron MY2N-CR-GS is a DPDT miniature power relay for AC coils with a built-in CR (capacitor and resistor) circuit that absorbs coil switching surges. It also has a LED operation indicator and mechanical indicators. It is selected when the coil is driven by a solid-state output or a long cable where turn-off transients cause nuisance. Seven Star LLC supplies the MY2N-CR-GS in Oman and the GCC as an independent supplier in Muscat.

• MY is the miniature plug-in power relay series.
• 2 means two poles (DPDT) and an 8-pin footprint.
• N means LED operation indicator and mechanical indicators.
• CR means a built-in CR circuit for coil surge absorption.
• GS is the series suffix; AC coil versions listed are 100/110, 110/120, 200/220 and 220/240 V.

The CR circuit is designed for AC coils; for DC coils the datasheet uses a diode instead, with MY2N-D1-GS and MY2N-D2-GS selected by polarity.

MY2N-CR-GS technical specifications

CR types are listed only for the high-voltage AC coils. Because the CR circuit leaks a small current through the coil, release behaviour with solid-state outputs should be checked against the datasheet release voltage of 30% minimum of rated voltage.

How MY2N-CR-GS works and what the indicators show

An AC relay coil stores energy that, when switched off, can generate a voltage spike that stresses the switching device and radiates noise. A series capacitor and resistor in parallel with the coil absorbs this energy locally, protecting contacts or solid-state outputs upstream.

The built-in circuit also provides a path for a small leakage current when the coil is switched by a solid-state output, so the user must verify that the coil releases reliably. The relay itself still operates in the normal way, with indicators showing contact position and LED lit when energised.

Coil ratings for MY2N-CR-GS

MY2N-CR-GS is available only with AC coils of 100 V and above. The table lists the AC coil data from the datasheet.

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

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-CR-GS

The relay is a plug-in match for MY2 sockets (PYFZ-08-E, PYF08A-N, PYF-08-PU, PY08-02). If your coil is DC, use the diode versions MY2N-D1-GS or MY2N-D2-GS; for no suppression at all choose MY2N-GS. The latching version with CR is MY2IN-CR-GS.

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-CR-GS

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

• Confirm that the coil supply is AC at 100/110, 110/120, 200/220 or 220/240 V.
• Verify that the coil driver (contact or solid-state) is compatible with a built-in CR leakage current.
• Check release voltage in your circuit; the must-release value is 30% min. of rated voltage.
• Check load against 10 A at 250 VAC.
• Select an 8-pin socket.
• If you want a latching lever, request MY2IN-CR-GS instead.

Installation, commissioning and maintenance of MY2N-CR-GS

Install in an 8-pin socket and connect the coil to the correct terminals; polarity does not matter for AC coils. Check that no extra external RC network duplicates the built-in circuit.

• Measure coil voltage with the relay installed; leakage can hold the relay if too high.
• Use the mechanical indicator to confirm release when the control signal is removed.
• Keep AC and DC relay spares separate and labelled.
• Record the coil voltage on the panel label.
• Replace on schedule where coil circuits are noisy.

Typical MY2N-CR-GS applications in Oman and the GCC

This relay is used where AC coils are switched by electronic modules, such as PLC triac outputs or timers, and where inductive kick-back could disturb neighbouring circuits. It is also suited to long coil cables in field-mounted panels. In Oman and the GCC typical sites include water-pumping stations, substation auxiliary panels and HVAC control cabinets.

Mains conditions in the region can be noisy near large motors and variable-speed drives, so surge-absorbing coils help keep control circuits stable.

MY-GS family compared with MY2N-CR-GS

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

Information to send with an RFQ for MY2N-CR-GS

• Part number MY2N-CR-GS and AC coil voltage.
• Quantity of relays and sockets.
• Type of coil driver (contact, triac, timer).
• Load on contacts.
• Socket mounting.
• 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-CR-GS.

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