URAONE Emergency Light 350 Lumens 1H IP42

The Legrand URA ONE 661624 emergency light is an LED self-contained indoor luminaire designed to provide 350 lumens of emergency lighting for 1 hour in the event of a power failure. This model operates in non-maintained mode, so it remains off during normal operation of the installation and switches on automatically when mains power is lost.

With IP42 and IK07 protection, a rechargeable nickel-cadmium battery and a compact 210 x 110 mm format, the URA ONE is especially suitable for safety lighting in evacuation routes, corridors, stairways, exits and common areas in indoor installations.

Legrand URA ONE 350-lumen emergency light

Reference 661624 belongs to Legrand's URA ONE range, developed to provide autonomous emergency lighting in buildings when the main power supply is interrupted.

During an emergency situation, the luminaire delivers a luminous flux of 350 lumens and maintains lighting for a nominal autonomy of 1 hour, helping people find their way to the evacuation routes and exits provided in the building.

Non-maintained operation

The Legrand 661624 is a non-maintained type emergency luminaire. Under normal conditions, with the electrical supply available, the emergency light source remains off while the battery stays ready for use.

When a power failure occurs, the luminaire automatically switches to battery operation and turns on its LEDs to provide the specified 350 emergency lumens.

As a non-maintained model, its luminous flux in standby mode is 0 lumens.

1-hour autonomy

The luminaire is designed to maintain emergency lighting for 1 hour. This autonomy provides temporary lighting on evacuation routes when the building's power supply is interrupted.

Legrand specifies a recharge time of up to 24 hours for the URA ONE range batteries, allowing the unit to recover its operating capacity after discharge.

Rechargeable nickel-cadmium battery

Reference 661624 incorporates a 4.8-volt, 1.5 amp-hour rechargeable nickel-cadmium battery, made up of 4 cells.

The battery is integrated into the luminaire itself and powers the LEDs when there is a loss of mains voltage. The unit also includes electronic protection to manage emergency system operation.

4 x 1-watt LEDs

Emergency lighting is provided by 4 x 1-watt LEDs. Legrand uses high-power LEDs together with an optical distribution designed to optimize light spread.

The luminaire features an opal diffuser that helps distribute the light and reduce direct visibility of the LED points.

IP42 and IK07 protection

The Legrand URA ONE 661624 has an IP42 protection rating, suitable for indoor installations within the environmental conditions specified by the manufacturer.

It also offers IK07 impact resistance, providing additional mechanical protection for the housing and internal components.

In terms of protection against electric shock, it is classified as Class II equipment.

Green LED charge indicator

The luminaire includes a green LED indicator that allows the charge and power status of the unit to be visually checked during normal operation.

This signaling makes inspection and maintenance tasks easier, as it quickly shows that the charging system is powered.

Standby mode via remote control

Model 661624 supports remote standby mode via telecommand. This function allows the luminaire status to be managed from a compatible device within the emergency lighting installation.

Standby mode can be useful to avoid unnecessary battery discharge when the power supply to an unoccupied building is deliberately interrupted.

Compact wall or ceiling design

The luminaire has dimensions of 210 mm in length, 110 mm in width and 41 mm in depth, providing a compact, low-profile format.

The housing is made of white plastic and the cover uses opal plastic as the diffuser element.

It can be surface-mounted and also recessed into a wall or ceiling using the compatible recessed frames from the URA ONE range.

Simplified installation and maintenance

The URA ONE range uses a plug-in rear design and a grid of pre-cut holes intended to make both initial installation and later maintenance operations easier.

The reference accepts rigid or flexible conductors with cross-sections between 1.5 and 2.5 square millimeters, adapting to the usual wiring in emergency lighting circuits.

230-volt power supply

The Legrand 661624 operates with a nominal 230-volt AC supply and a frequency between 50 and 60 hertz.

Legrand specifies a supply tolerance of plus or minus 10 percent for the range, corresponding approximately to a range of between 207 and 253 volts.

Operating temperature

The luminaire is designed to operate at an ambient temperature between -5 and 35 degrees Celsius. For storage, Legrand specifies a range between -10 and 50 degrees Celsius.

These conditions, together with its IP42 rating, mean the product is intended mainly for indoor applications.

Compliant with emergency lighting standards

The URA ONE range is certified in accordance with IEC and EN 60598-2-22 standards applicable to emergency luminaires.

Reference 661624 also has AENOR certification, confirming its main electrical and functional characteristics, including the 350-lumen output, 1-hour autonomy, nickel-cadmium battery, IP42 and IK07 protection and Class II electrical classification.

Technical features of the Legrand 661624

• Brand: Legrand.
• Range: URA ONE.
• Reference: 661624.
• EAN: 3414970575883.
• Product type: LED self-contained emergency luminaire.
• Application: evacuation route lighting and identification.
• Operation: non-maintained.
• Emergency luminous flux: 350 lumens.
• Standby luminous flux: 0 lumens.
• Autonomy: 1 hour.
• Light source: non-replaceable LED.
• Number of LEDs: 4.
• Rated LED power: 4 x 1 watt.
• Color temperature: 5,700 kelvin.
• Nominal supply: 230 volts AC.
• Supply range: approximately between 207 and 253 volts.
• Frequency: between 50 and 60 hertz.
• Battery type: nickel-cadmium.
• Battery voltage: 4.8 volts.
• Battery capacity: 1.5 amp-hours.
• Number of battery cells: 4.
• Recharge time: up to 24 hours.
• Protection rating: IP42.
• Impact resistance: IK07.
• Electrical protection class: Class II.
• Housing material: plastic.
• Housing color: white.
• Diffuser material: opal plastic.
• Length: 210 millimeters.
• Width: 110 millimeters.
• Depth: 41 millimeters.
• Permitted conductor cross-section: between 1.5 and 2.5 square millimeters.
• Conductor type: rigid or flexible.
• Operating temperature: between -5 and 35 degrees Celsius.
• Storage temperature: between -10 and 50 degrees Celsius.
• Charge indicator: green LED.
• Standby via remote control: yes.
• Installation: indoor, surface-mounted or recessed using compatible accessory.
• Standards: IEC and EN 60598-2-22.

350-lumen emergency lighting for indoor use

The Legrand URA ONE 661624 provides 350 lumens for 1 hour in the event of a mains failure, offering a compact solution for illuminating evacuation routes and passage areas in buildings.

Its non-maintained operation, integrated nickel-cadmium battery, charge indicator, IP42 and IK07 protection and the possibility of surface-mounted or recessed installation make it easy to integrate into indoor emergency lighting projects.