Description
The ADEL System CB1235A is a high-power 12V DIN rail battery charger designed for demanding industrial, infrastructure and standby-power applications. Manufactured in Italy, it combines a robust 420W power stage with ADEL System’s intelligent Battery Care charging technology.
Operating from a wide 90 to 135VAC or 180 to 305VAC input, the CB1235A provides a 12V DC charging output at up to 35A. Its automatic multi-stage charging process supports open and sealed lead-acid, AGM, gel and optional Ni-Cd battery technologies.
The charger includes automatic battery diagnostics, LED status indication and volt-free relay outputs for mains, backup and battery-fault signalling. Protection against short circuit, overload, overheating and reversed battery polarity helps provide dependable operation in demanding industrial installations.
ADEL System CB1235A 12V 35A DIN Rail Battery Charger
A high-power 420W industrial battery charger with automatic Battery Care charging, diagnostics and relay fault signalling.
The CB1235A is designed to charge and maintain 12V battery systems from a single-phase AC supply. Its wide operating range supports common 115V, 230V and 277V mains systems, making it suitable for industrial equipment installed across different regions.
Typical Applications
This 12V DIN rail battery charger is suitable for applications including:
- Industrial automation and control panels
- Fire detection and fire-pump control systems
- Security, access-control and surveillance equipment
- Telecommunications and remote monitoring
- Generator control and standby-power systems
- Emergency lighting and battery-backed infrastructure
Automatic Battery Care Charging
ADEL System’s Battery Care technology uses an automatic IUoUo charging process with boost, trickle and recovery stages. This controlled charging method helps restore deeply discharged batteries, optimise charging time and maintain battery readiness during long-term standby operation.
Battery Diagnostics and Fault Signalling
Integrated diagnostics monitor the connected battery and identify conditions such as reversed polarity, disconnection, sulphation and possible shorted cells. LED blink codes provide clear diagnostic information, while volt-free relay contacts allow mains, backup and battery-fault conditions to be reported to external monitoring equipment.
Industrial DIN Rail Installation
The robust IP20 enclosure measures approximately 150 × 115 × 135mm and mounts on standard 35mm DIN rail. Natural-convection cooling supports reliable operation without fans, reducing maintenance requirements.
Manufactured in Italy
The CB1235A is manufactured in Italy by ADEL System and is designed for professional industrial battery-charging applications.
Key Features
The principal electrical, charging, protection and installation characteristics of the ADEL System CB1235A.
- Product type: DIN rail industrial battery charger
- Nominal input voltage: 115 / 230 / 277VAC
- Input voltage range: 90 to 135VAC or 180 to 305VAC
- Nominal battery voltage: 12VDC
- Maximum charging current: 35A
- Power rating: 420W
- Efficiency: Greater than 91% at 50% load
- Charging method: Automatic IUoUo multi-stage charging
- Boost-charge voltage: 14.4VDC
- Float-charge voltage: Approximately 13.75VDC
- Battery compatibility: Open lead-acid, sealed lead-acid, AGM, gel and optional Ni-Cd
- Diagnostics: Battery connection, polarity, sulphation and cell-fault monitoring
- Status indication: LED operating and diagnostic indication
- Alarm outputs: Volt-free relay contacts for mains, backup and battery-fault signalling
- Protection: Short circuit, overload, overheating and reverse polarity
- Operating temperature: -25°C to +70°C
- Cooling: Natural convection
- Dimensions: 150 × 115 × 135mm
- Weight: Approximately 1.5kg
- Mounting: 35mm DIN rail mounting
- Country of manufacture: Italy
- Warranty: 3 years
Technical Specification
Electrical, battery-management, mechanical and installation information for product selection and system design.
| Specification | Details |
|---|---|
| Manufacturer | ADEL System |
| Model Number | CB1235A |
| Product Type | DIN rail industrial battery charger |
| Nominal Input Voltage | 115 / 230 / 277VAC, single phase |
| Input Voltage Range | 90 to 135VAC or 180 to 305VAC |
| Input Frequency | 47 to 63Hz |
| Input Current | Approximately 8.0A at 115VAC and 4.2A at 230VAC |
| Inrush Current | 35A for 5ms or less |
| Nominal Battery Voltage | 12VDC |
| Maximum Charging Current | 35A ±5% |
| Power Rating | 420W |
| Efficiency | Greater than 91% at 50% load |
| Boost-Charge Voltage | 14.4VDC |
| Float-Charge Voltage | Approximately 13.75VDC |
| Recovery-Charge Range | 2 to 9VDC |
| Charging Current Adjustment | 10% to 100% of rated battery current |
| Charging Technology | Automatic IUoUo multi-stage Battery Care charging |
| Charging Stages | Boost, trickle and recovery |
| Compatible Battery Types | Open lead-acid, sealed lead-acid, AGM, gel and optional Ni-Cd |
| Diagnostic Functions | Reverse polarity, battery disconnection, sulphation and shorted-cell detection |
| Status Indication | LED operating and diagnostic indication |
| Alarm Outputs | Volt-free relay contacts for mains, backup, low-battery and battery-fault signalling |
| Protection | Short circuit, overload, overheating and reverse battery polarity |
| Input-to-Output Isolation | 3000VAC |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | Up to 95% relative humidity at 25°C, non-condensing |
| Cooling Method | Natural convection |
| Ingress Protection | IP20 |
| Connections | Screw terminal |
| Dimensions | 150 × 115 × 135mm |
| Weight | Approximately 1.5kg |
| Mounting | 35mm DIN rail mounting |
| Country of Manufacture | Italy |
| Warranty | 3 years |
Available Model
This product page covers the 12V, 35A version of the ADEL System CB series.
| Model Number | Input Voltage | Output Voltage | Output Current | Power Rating |
|---|---|---|---|---|
| CB1235A | 90 to 135VAC / 180 to 305VAC | 12VDC | 35A | 420W |
Technical Support from Relec Electronics
As part of the Relec Electronics group, Dinrail Power benefits from over 45 years of experience supplying industrial electronic components and power solutions. Our engineering team can provide technical guidance, product selection support and assistance with complex power supply requirements. For alternative solutions, customised options or specialist technical advice, visit the Relec Electronics website.




