IM-M1005 80A 250VAC 1P Single-Phase Motor Latching Relay

In short: The IM-M1005 is an 80 A, 250 VAC, single-phase, single-pole (1P) motor-driven latching relay manufactured by IVY Metering Co., Ltd. An internal miniature motor drives the contact mechanism, and the relay holds its switched position mechanically after the drive pulse, so no continuous coil energisation is required. It is not a magnetic latching relay. The IM-M1005 withstands external constant magnetic fields up to 500 mT, measures 29.2 mm × 23.5 mm × 14.0 mm, weighs approximately 22 g, and is RoHS compliant. IVY Metering lists it in the EV Charger Relay product line and recommends a refresh drive operation every 30 days.

Key technical facts

How does a motor-driven latching relay work?

A motor-driven latching relay uses a small internal electric motor to drive the contact mechanism. A short drive pulse turns the motor in one direction to close the contacts and in the other direction to open them. Once the movement is complete, a mechanical self-locking arrangement holds the contacts in place, so the relay consumes no holding power and does not need a continuously energised coil.

Latching relays are commonly grouped by their holding principle: mechanical latching (a motor or mechanism holds the position, as in the IM-M1005) and magnetic latching (a permanent magnet holds the position after a coil pulse). A monostable / non-latching relay is different again: it returns to its default position as soon as coil power is removed. Because the IM-M1005 holds its state mechanically rather than magnetically, its behaviour under external magnetic fields is governed by its immunity rating, not by a permanent magnet.

Is the IM-M1005 a magnetic latching relay?

No. The IM-M1005 is a motor latching relay: a miniature motor inside the relay drives the contact mechanism and a mechanical latch holds the switched position. It is not a magnetic latching relay, and there is no permanent magnet holding the contacts. The 500 mT figure shown on this page is an immunity rating against external constant magnetic fields, not a description of how the relay keeps its state. If your design specifically requires a magnetically held (bistable magnetic) relay, the IM-M1005 is not that part — contact IVY Metering for the appropriate model.

What does 500 mT external magnetic field immunity mean?

The IM-M1005 is specified to resist constant external magnetic fields up to 500 mT, so a nearby permanent magnet or stray DC field is unlikely to force the contacts into an unintended state. This is a robustness requirement for equipment installed near cables, contactors, motors or metering assemblies. It is an immunity figure, not a switching rating (the switching rating is 80 A at 250 VAC) and not a holding mechanism. The relay keeps its state through mechanical self-locking driven by its internal motor.

Where is the IM-M1005 used?

• Motor control systems: IVY Metering describes the IM-M1005 as particularly suitable for motor control systems that need stable, reliable, high-current switching.

• EV charging equipment: the product is published in IVY Metering's EV Charger Relay product line.

• Space-constrained assemblies: at 29.2 mm × 23.5 mm × 14.0 mm and about 22 g, the compact body suits dense layouts.

IVY Metering describes the IM-M1005 as an optimised design developed from customised client solutions, so confirm the exact motor drive and contact configuration against your project requirements before ordering.

How should the motor drive mechanism be maintained?

IVY Metering recommends a refresh drive operation every 30 days as part of its long-life design guidance for this relay, so the motor mechanism and contacts are exercised periodically. Follow the specified drive pulse in the official datasheet; continuous energisation is not the intended way to operate a motor-driven latching relay.

How does the IM-M1005 compare with other IVY Metering relays?

The table below is compiled from IVY Metering's public product listings. It is a selection guide, not a substitute for datasheets — verify every value with the factory before specifying a part. Model descriptions for the other relays follow the site's own naming and have not been individually re-verified for their holding principle.

Frequently asked questions

What is the IM-M1005 relay?

The IM-M1005 is an 80 A, 250 VAC, single-phase, single-pole motor-driven latching relay made by IVY Metering Co., Ltd. An internal miniature motor drives the contacts and a mechanical latch holds their position after the drive pulse. It is designed for stable high-current switching in motor control systems and is listed in IVY Metering's EV Charger Relay product line.

What is the maximum switching current of the IM-M1005?

The IM-M1005 has a maximum switching current of 80 A. Its rated voltage is 250 VAC and it uses a single-pole (1P) contact configuration.

Is the IM-M1005 a magnetic latching relay?

No. The IM-M1005 is a motor latching relay: a small internal motor drives the contact mechanism and a mechanical self-locking arrangement holds the switched position, without continuous coil power and without a permanent magnet holding the contacts. The 500 mT figure is its immunity to external constant magnetic fields, not its holding principle. Magnetic latching relays hold their state with a permanent magnet instead.

What does 500 mT magnetic field immunity mean for this relay?

The IM-M1005 resists constant external magnetic fields up to 500 mT, so nearby magnets or stray fields are unlikely to change the contact state unintentionally. This is an immunity rating, separate from the 80 A / 250 VAC switching rating, and it does not mean the relay is magnetically latched.

What are the dimensions and weight of the IM-M1005?

The relay body measures 29.2 mm × 23.5 mm × 14.0 mm and weighs approximately 22 g, which IVY Metering describes as a compact design that saves installation space.

Is the IM-M1005 RoHS compliant?

Yes, IVY Metering states that the IM-M1005 complies with the RoHS directive on the restriction of hazardous substances in electrical and electronic equipment. Request the current compliance declaration or test report for procurement documentation.

How often should a refresh drive operation be performed?

IVY Metering recommends a refresh drive operation every 30 days so the motor mechanism and contacts are exercised. Confirm the required drive voltage, pulse width and direction in the official datasheet before implementing this in firmware.

Which IVY relay should I choose for a 90 A or 100 A EV charger?

For 90 A applications, IVY Metering lists the IM901 latching relay (90 A, 250 VAC) and the IM902D 2-pole 90 A bistable relay. For up to 100 A, the IM-NE802 is listed as a SPST non-latching EV AC charger relay. The IM-M1005 is rated at 80 A; select a higher-rated model if the load current exceeds 80 A.

Standards and sources

• European Commission — RoHS Directive (Directive 2011/65/EU), the directive referenced by the RoHS compliance statement on this product.

• IEC 61810-1, Electromechanical elementary relays — Part 1: General and safety requirements — referenced across IVY Metering's EV relay range; confirm which standards apply to the IM-M1005 specifically.

• Latching relays are commonly classified as mechanical latching or magnetic latching designs. The IM-M1005 belongs to the motor-driven mechanical type; it is not a magnetic latching relay.

• Product specifications above: IVY Metering IM-M1005 product page, accessed 10 November 2026.

• Comparison data: IVY Metering EV Charger Relay product listing, accessed 10 November 2026.

Request documents or a quotation

For the full datasheet, motor drive waveform, contact configuration, endurance curves, RoHS declaration, MOQ and pricing, contact IVY Metering Co., Ltd. (ess4@ivy-metering.com, +86 21 6220 9608) or use the contact page.

Manufacturer: IVY Metering Co., Ltd., Room 2012, Gold Source Center, No.28 Yuan'wen Road, Minhang District, Shanghai 201199, China. Page last reviewed: 2026.11.10.