Liteplan ERM/2/MinEM – Emergency Module, Battery and LED Strip

The ERM/2/MinEM is supplied as a complete non-maintained emergency driver & LED strip for integral mounting within a luminaire.

The 3-hour emergency lighting driver operates the LED strip at 250mA which provides 160 lumen from the LED strip. This unit is designed for emergency lighting, not for continuous use.
This product is suitable for mounting to a gear-tray adjacent to the light source, mitigating the risk of LEDs being miss-replaced and causing non-compatibility with existing emergency packs.

The charger will cut-off if the Tc of the battery falls below 0 degrees C or above 55 degrees C. The product will however operate when required in emergency, should there be enough capacity remaining in the battery.

ERM/2/MinEM Features

• Extra Long Life LiFePO4 Batteries
• Suitable for Mounting To Gear-tray
• Deep Discharge Protection
• Load Emitting 160 Lumen
• Non-Maintained Operation
• Features Battery Temperature Protection
• Connecting Lead Available as an Accessory

ERM/2/MinEM Technical Details

Input Voltage 230-240 Volts AC – 50/60Hz
Power Rating Charing 1.7W 15mA λ = 0.47
Power Rating Standby * 0.6W 10mA λ = 0.26
Emergency Duration 3-Hours
Battery Type LiFePO4
Battery Voltage 6.4V (2/LP06/P/TE)
Battery Capacity 0.6Ah
Charge Current 50mA Nominal
Recharge Time 24-Hours
Discharge Current 150mA Nominal
Ambient Temperature (Ta) 5°C to 35°C
Case Temperature (Tc) Point Case Side (Centre)
Case Temperature (Tc) Max Module 70°C
Case Temperature (Tc) Max Battery 55°C
MinEM Dimensions 46mm x 14mm
Overall Weight 0.085kg

ERM/2/MinEM Dimensions

Top view

Side view

Module Dimensions 104mm x 29.5mm x 20mm
Module Fixing Centres 97mm x M4

Battery Dimensions

Battery Dimensions 90mm x 24mm x 28mm
Battery Fixing Centres 1 x M4

Non-maintained LED emergency kits are conversion packs installed in standard LED fixtures. They remain off during normal power conditions but instantly illuminate during a mains failure, running on backup batteries. They provide essential escape lighting without contributing to everyday power consumption.

Key Features

Normal Operation: The module draws a small amount of mains power to constantly trickle-charge its internal battery. During this time, it remains in standby. The light operates exactly as normal, powered by its primary LED driver.

Emergency Mode: If a power outage occurs, the module’s voltage-sensing circuit detects the drop. Within milliseconds, it isolates the mains supply and switches the LEDs to the backup battery. The module converts the battery’s low DC voltage to the correct level required to keep the LEDs illuminated.

Duration: Emergency lights must operate on battery backup for 1 to 3 hours during mains failure.

Energy Efficient: Since they only activate during emergencies, they experience less wear and tear and conserve power.

Typical Applications

Non-maintained lights are ideal for environments where occupants are already familiar with the building layout.

• Common locations include:
• Workplaces and Offices
• Warehouses and Factories
• Schools and Public Buildings
• Corridors and Stairwells

Liteplan are the largest, privately owned emergency lighting component supplier to the UK market, whilst also shipping their products to a worldwide customer base. Established in 1994 by the late Bill Green, the company was successfully run by Bill’s right hand man, Peter Ray for many years. Peter retired in 2022 and Liteplan is now run by the next generation of Bill’s family with his son, Steve Green at the helm as Managing Director and Steve’s brother-in-law, Jonathan Bell as Director of Operations. Their Business Development Director, Adrian Spicer is a long standing and well respected figure in the world of emergency lighting. His knowledge and stature within the industry are invaluable to them.

Liteplan’s wealth of knowledge extends many years. Their Technical Manager, David French BSc. sits on the committee at ICEL and works closely with The LIA. Their Product R&D Manager, Osman Özgür Rakibet, PhD, takes control of Liteplan’s product road map. His knowledge is steering their evolution and maintaining their position as the innovators of the emergency lighting sector.

Many of Liteplan’s engineers have worked with the company for over 20 years, constantly striving to progress through the our ever evolving CPD scheme to stay at the forefront of the ever changing world of legislation.

Liteplan proudly design all of their products in-house, making product evolution a constant and seamless process. They employ over 60 local personnel, many of whom have been with them for the majority of their existence and they also pride themselves on their unrivalled delivery satisfaction level.

Their 40,000 square foot factory enables them to carry a huge level of stock, thereby fulfilling even the largest of orders with haste. They recently acquired additional warehousing adjacent to their headquarters near London’s M25. This will fuel Liteplan’s global expansion plans for many years to come.