Schneider Electric RPM42P7 Harmony RPM Power Relay 4 C/O 230 V

RPM42P7 15 A four-pole plug-in power relay with 230 V AC coil

The RPM42P7 is a Schneider Electric product listed in the datasheet as: plug-in relay, Harmony electromechanical relays, 15A, 4CO, with LED, lockable test button, 230V AC. The RPM42P7 is a power relay of the Harmony RPM series with four change-over contacts rated 15 A and a 230 V AC coil. It plugs into a socket, has a lockable test button and an LED, and handles loads that small interface relays cannot. Seven Star LLC supplies the RPM42P7 in Oman and the GCC as an independent supplier based in Muscat.

Reading the reference: RPM marks the power plug-in relay series, 4 the number of poles, 2 the contact size and P7 the 230 V AC 50/60 Hz coil as confirmed by the coil row.

Technical specifications of the RPM42P7

Contact and coil data

Contacts: 4 C/O. Coil: 230 V AC 50/60 Hz. Rated current: 15 A 277 V AC UL; 15 A 28 V DC UL; 15 A 250 V AC NO IEC; 15 A 28 V DC NO IEC; 7.5 A 250 V AC NC IEC; 7.5 A 28 V DC NC IEC. Switching capacity: 3750 VA; 420 W. Operating time: 20 ms at nominal voltage. Release time: 20 ms at nominal voltage. Coil resistance: 7350 Ohm at 20 °C ± 15 %. Test button: Lockable test button.

Four poles allow separate circuits to be switched together, such as the contactor coil, a signal lamp and two PLC feedbacks. The lockable test button allows manual operation for commissioning, but remember to unlock it before leaving.

Pairing the RPM42P7 with sockets and accessories

The relay needs a matching socket; sockets for the RPM series have screw terminals and a retaining clip. Accessories include marking tags and a protective surge module in some versions.

Where a smaller relay such as RXM4 or RSB is enough, they save space; RPM is chosen where the load current is high.

Selection checklist for the RPM42P7

• Load current per contact and number of poles.
• Coil voltage 230 V AC.
• Matching socket and retaining clip.
• Test button needs.
• Ambient temperature range.
• Mechanical life expectations.

Mounting and servicing the RPM42P7

Insert the relay into its socket, wire the load and coil terminals, and fit the retaining clip if the panel is subject to vibration. Do not exceed the stated current per contact or the total current.

Replace the relay at intervals set by duty and carry a spare, since relays are cheap relative to downtime.

Typical applications of the RPM42P7 in Oman and the GCC

Panel interface duties in motor control centres, lighting control and building-automation panels in Oman and the GCC.

Dimensions, environment and approvals of the RPM42P7

The RPM42P7 weighs 0.071 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.

Ambient temperature limits in the datasheet: -40 to 55 °C. Vibration resistance: 3 gn ± 1 mm 10 to 150 Hz5 cycles in operation; 5 gn ± 1 mm 10 to 150 Hz5 cycles not operating. Shock resistance: 15 gnin operation; 30 gnnot operating. Standards listed: UL 508; IEC 61810-1; CSA C22.2 No 14. Certifications listed for this reference: EAC; CSA; UL.

Information to send with an RFQ for the RPM42P7

• Full reference and quantity required
• Existing equipment, panel or rack it must fit
• Supply voltage, load or signal details of the application
• Required delivery location and timing
• Whether a spare, a replacement or a new installation

Site conditions in Oman for the RPM42P7

Control cabinets in Gulf plants often run hot, because many sit in outdoor kiosks or in rooms where air conditioning is not always reliable. Before you finalise the RPM42P7, check the permitted ambient range and any derating stated by the manufacturer against the real temperature inside your panel, and leave the recommended spacing around the device so that heat can escape. Long cable runs between the field and the marshalling cabinet are common on large sites, so confirm the signal types, wiring limits and earthing arrangement early in the design.

It also helps to standardise on a small number of part numbers across a project. Keeping a few spare RPM42P7 units on site in Oman shortens recovery time after a fault, and documenting configuration settings makes replacement faster for the maintenance team.

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.