HFE10 · HFE33
Primary topicLatching relays UAE

Latching relays

Efficient switching for smart metering

Low-power latching relay test for metering equipment
Latching relays UAE

Verified models in this family

Specifications below are example market references checked against publicly available manufacturer pages and English datasheets. Use them to shortlist, not to release a drawing.

HFE10 example

HFE10

Meter-grade 50 A latching relay for remote connect/disconnect in smart-meter rollouts such as UAE utility programmes.

Contact rating
50 A 277 VAC · lamp 5,000 W · motor 3 HP · inrush 480 A / 2.1 ms
Coil voltage
Pulse-driven latching coil (set/reset ≥50 ms) · single or double coil
Contact form
1 Form A / 1 Form B / 1 Form C
Endurance
1×10⁵ ops (50 A 277 VAC resistive) · mechanical 1×10⁶
Certifications
UL E134517 · VDE 40035869
HFE33 example

HFE33

Subminiature latching relay for tariff switching and pulse outputs inside single-phase smart meters.

Contact rating
2 A switching capacity · meter-specific design
Coil voltage
See manufacturer datasheet (third-party)
Contact form
Latching · contact gap ≥1.2 mm
Endurance
Dielectric 2.5 kV open contacts · 4 kV coil–contacts
Certifications
See manufacturer datasheet (third-party)

Final parameters, derating and ordering codes are always governed by the manufacturer’s latest datasheet for the exact version selected.

Selection starts with the operating conditions

The model family narrows the search. The exact ordering code follows only after the load, voltage, coil, environment, standards and volume are known.

01

Load

Resistive, inductive, motor, lamp, capacitor or DC fault duty

02

Electrical

Working voltage, continuous current, inrush and switching frequency

03

Control

Coil supply, tolerance, suppression and auxiliary feedback

04

Environment

Enclosure temperature, altitude, vibration, sealing and duty cycle

Manufacturer source (third-party)

Use the manufacturer page (third-party) for current datasheets, certificates, ordering codes and engineering confirmation.

Manufacturer product page (third-party)

Prepare a model-selection request

Share the operating conditions and intended annual volume. No local availability or approval is assumed.

Send enquiry
Request a quoteManufacturer datasheet (third-party)