Liteplan CPH-M – Dedicated Central Battery Hold off Emergency LED Driver, Suitable For 50V, 110V & 240V Systems

CPH-M Technical Information

• Central Battery Hold off Driver
• Suitable for 50V, 110V & 240V Systems
• Output Current Selected via a Jumper
• Operates from AC or DC Systems
• Available in Remote Enclosure if Required
• Designed to Operate Dedicated LED Load

The CPH-M module is supplied as a dedicated emergency lighting driver for integrally mounting within the luminaire. It is suitable for powering our range of dedicated emergency LEDs and is designed to run from a central battery system.

The CPH-M unit is designed as a centrally supplied unit (240V, 110V or 50V AC/DC) to run a dedicated LED in emergency, with the output held off whenever the 240V AC unswitched supply is present.

At the point the unswitched supply is broken, the driver will accept the feed from the central battery and power a single LED at 350mA, 550mA, or 700mA.

CPH-M Technical Details:

Emergency Voltage from CBU 45-240V AC/DC (50V, 110V & 230V Nominal)
Emergency Power from CBU See Installation Instruction
Mains Un-Switched Supply 230-240V AC 50/60Hz
240V Hold off Current/Power 6mA, 1W, λ = 0.65
Dimensions L x W x H 152mm x 26.5mm x 28.5mm (f/c 145mm)
Module Weight 0.15Kg
Terminal Cable Size 0.5 – 1.5mm2 Push Fit

Side view

Top view

Compatible dedicated Liteplan LED devices

LED/43/OA/W
LED/43/CO/W

Central battery drivers with “hold-off” (or inhibit) are emergency lighting modules designed for central power systems. They monitor the standard mains supply, keeping the emergency light “held off” (inactive) while mains power is normal. If the un-switched mains fail, the hold-off relay disengages and instantly powers the dedicated LED from the central battery.

These drivers are crucial for maintaining safety and compliance in public spaces, educational facilities, and secure units.

Key details include:

Universal Voltage Input: Modules are engineered to accept varying AC/DC central battery inputs, commonly operating at 240V, 110V, or 50V.

Current Options: Output currents are typically adjustable—via jumper cables or switches—to 350mA, 550mA, or 700mA depending on the LED load.

Intermittent Use: These devices are not intended for permanent, continuous operation; they are specifically for emergency/intermittent use.

System Integration: They are highly integrated with centralised changeover relay panels that control entire lighting sub-circuits.

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.