Product Overview

High Efficiency Emergency Modules

CERIAN 18W and 36W modules provide emergency operation for T8 lamps from 3 cell NiCd batteries. CERIAN modules are fitted with four pole relays to switch all four lamp connections from the ballast to the inverter.

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CERIAN Technical Specifications


Supply voltage240 V

Supply frequency50/60 Hz

Supply current (max)40 - 80 mA

Power factor0.85

Ambient temperature (ta)0 to +50°C

Max case temperature (tc)+70°C

Conductor size0.5 - 1.5mm²

Battery charge current260 mA

Battery discharge current - 18W0.75 A

Battery discharge current - 36W1.12 A

Battery charge voltage3.6 to 4.5 V

Battery discharge voltage2.4 to 4.2 V

Emergency duration3 hours

Recharge period24 hours

Weight of control gear250 g

Isolating Transformer
Mackwell transformers comply with relevant standards and incorporate a re-settable thermal device to protect the transformer from excessive overload conditions.

Battery Charger
Provides sufficient charge to achieve rated duration from 24 hour charge.

Voltage Sensing Circuit
The AC power supply is sensed so that switching occurs at between 60% and 85% of the nominal mains supply.

The LED indicator is illuminated when a charge is flowing to the cells. Flexible 1x0.6mm high temperature orange and pink leads connect the indicator to the module. The indicator requires a 8mm hole.

Deep Discharge Protection
The inverter module incorporates deep discharge protection (DDP), to prevent damage to the batteries caused by deep discharge and possible subsequent reverse cell polarity.
Technology Options
For applications where self-testing is not required or suitable, the non-AutoTest® option provides the same quality and performance expected of Mackwell products, without the AutoTest® feature.
Relevant Standards
  • EN 61347-1
  • EN 61347-2-3
  • EN 61347-2-7
  • EN 60598-2-22
  • BS 5266-1
  • EN 62034
  • EN 62386
  • ICEL 1004
Lamp performance can be affected by lead length. Lamp wires should be kept to a bminimum length. Do not insulation test this product. The rectified output of these modules may lead to mercury migration of the lamp. Reversing battery polarity will cause damage.

Selecting the correct module
Please see the BLF Lamp Selection Chart for further information. This can be found in the Knowledge Base 

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CERIAN Product Ranges

Order Codes Descriptions
9001496 CERIAN 36W 3C Module

Key Features

  • High Efficiency rectified output optimised for T8 lamps
  • Compact size allows simple installation
  • Deep Discharge Protection fitted
  • 3 hour emergency duration

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For more information, please call us on +44 (0) 1922 458 255 or send us a message below.

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