Powerbox PB358 Series Smart DC-UPS / Battery Charger - DIN Rail Mount
The Powerbox PB358 Series Smart DC-UPS and Battery Charger is a highly efficient, 138W solution designed for reliable DC power and battery backup in critical applications. Its DIN rail-mounted design and advanced features make it ideal for security access control systems, telecommunications, and industrial automation. Key features include advanc...
Read MoreThe Powerbox PB358 Series Smart DC-UPS and Battery Charger is a highly efficient, 138W solution designed for reliable DC power and battery backup in critical applications. Its DIN rail-mounted design and advanced features make it ideal for security access control systems, telecommunications, and industrial automation.
Key features include advanced 2-step or 3-step battery charging, real-time monitoring with alarm relays and LEDs, and automatic battery testing and protection mechanisms. With adjustable charging parameters and optional Ethernet interface for remote management, the PB358 Series offers exceptional control and reliability. Its rugged design ensures continuous operation in demanding environments, with full output capacity up to 50°C.
Available in 13.8Vdc, 27.6Vdc, and 55.2Vdc configurations, the Powerbox PB358 Series delivers versatility and high performance for various industrial requirements. Compliant with AS/NZS60950.1 safety and AS/NZS CISPR11 Class B EMC standards, this charger provides peace of mind and reliable power in mission-critical scenarios.
The Powerbox PB358 Series is your trusted choice for seamless integration into industrial systems requiring dependable power and intelligent battery management.
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Features
- Trusted in Critical Applications: Widely utilised across Australia in electronic security and water utility applications, providing reliable, continuous DC power to access control systems, security peripherals, telemetry, monitoring equipment, and critical infrastructure control.
- Versatile Installation Options: Designed for ease of integration, the PB358 Series features compact DIN rail mounting and offers a choice between screw terminal or IEC60320 C14 appliance inlet for AC mains input—providing flexibility and convenience for both field and panel-based installations.
- Advanced Battery Management: Automatic and manual Battery Condition Testing (BCT), battery low-voltage disconnect, built-in electronic circuit breaker for battery overload protection, automatic battery connection and fuse integrity tests every five minutes, and battery over-temperature protection.
- Intelligent Monitoring: Comprehensive alarm system featuring Mains OK, Rectifier OK, Battery OK, and Fault indicators with voltage-free relay contacts. Optional Ethernet interface available.
- High Temperature Operation: Full-rated output operation from 0°C to 50°C with linear derating up to 70°C, suitable for harsh environments and natural convection cooling.
- Australian Made: Proudly designed and manufactured in Australia, the PB358 Series reflects local engineering expertise and a deep understanding of industry requirements. Built to meet the demands of Australian conditions, it ensures high-quality performance, responsive technical support, and dependable supply chain continuity.
Specifications
| INPUT | |
|---|---|
| Input Voltage | 190...264Vac, or 190...400Vdc |
| Input Current | 1.4A max |
| Inrush current | 15A on cold start |
| Frequency | 45 to 65 Hz |
| ALARMS AND CONTROLS | |
|---|---|
| RELAYS | Four voltage-free form-C contacts 32Vdc, 1A |
| Mains OK Relay | OK / Fail |
| Rectifier OK Relay | OK / Fail, overtemp or shutdown |
| Battery relays | Determined by DIP switch |
| DIP switch 3 = OFF (Default) | |
| Battery status relay | OK / Battery low voltage |
| OK / Battery low voltage,battery disconnected or fuse fail, battery overvoltage,battery overtemperature or BCT Fail |
|
| Battery fault relay | DIP switch 3 = ONBattery disconnected or fuse fail, battery overvoltage, battery overtemperature or BCT Fail |
| BCT in progress / not in progress | |
| CONTROLS | |
| External shutdown | Input for ext. voltage-free contact Closure reduces rectifier output voltage to 9.6V /19.4V / 39.1V |
| Control button | 1s: clear BCT or bat discon. alarm 5s: manually start or abort BCT 10s: reset microcontroller |
| Battery start button | Closes battery low voltage disconnect switch. Allows load to be started from battery if mains power is not available. |
| LED's | Four green alarm / status LED’s |
| Mains and rectifier status | ON: Mains OK / OFF: Mains failON: Rectifier OK 0.5s flash: External shutdown 0.1s flash: Rectifier overtemp. prot’n OFF: Rectifier fail |
| Battery and BCT status | ON: Battery OK, charger = float 1s flash: Battery OK, charger = bulk 0.5s flash: Battery OK, charger = absorp. 0.2s flash: Battery OK, BCT pending0.1s flash: Battery OK, battery test or BCT OFF: Battery low voltage |
| Fault codes | Battery fault, 1-11 flashes in 5 seconds 1 flash: Battery disconnected or fuse fail 2 flashes: Battery overvoltage 3 flashes: Battery overtemperature 4 flashes: BCT fail |
| Fault LED | OFF: No faults |
| Fault codes | Battery fault, 1-11 flashes in 5 seconds 1 flash: Battery disconnected or fuse fail 2 flashes: Battery overvoltage 3 flashes: Battery overtemperature 4 flashes: BCT fail |
| OUTPUT - AC MAINS OPERATION | |
|---|---|
| Output voltage |
PB358-12DIN & PB358-12DIN-IEC: 13.8Vdc PB358-24DIN & PB358-24DIN-IEC: 27.6Vdc PB358-48DIN & PB358-48DIN-IEC: 55.2Vdc |
| Output Current (Total) |
PB358-12DIN & PB358-12DIN-IEC: 10A PB358-24DIN & PB358-24DIN-IEC: 5A PB358-48DIN & PB358-48DIN-IEC: 2.5A |
| Line regulation | 0.2% typ. |
| Load regulation | 1.3% max. |
| Rectifier current limit* | Constant current > 6/7.5/15Vout Hiccup < 6/7.5/15Vout |
| Battery charging current limit | Constant current > LVD volts Front panel adjustable |
| Short circuit prot'n | Indefinite, autoresetting |
| Overvoltage prot'n | 15.5-19.5V/31.5-39.0V/62.0-73.0V |
| Ripple & noise * | <50mVp-p/<100mVp-p/<100mVp-p |
| Efficiency* | 86%/87%/ 88% typ. at 100% load* (13.8Vout / 27.6Vout / 55.2Vout) |
| BATTERY MANAGEMENT | |
|---|---|
| Battery connections test | Battery connections & fuse tested automatically every 5 minutes |
| Battery charger | 2 or 3 step selected by DIP switch 2 |
| 2 Step | Bulk / float |
| 3 Step | Bulk / absorption / float |
| Parameters | Float voltage: 2.30 V/cell @ 25°C Absorption voltage: 2.40 V/cell @ 25°C Max. absorption time: 2 hours Absorption taper current: 4% Irated Absorption enable threshold: 2.00 V/cell |
| Battery overtemperature | 50°C |
| Battery overvoltage alarm | 2.50 V/cell, temperature compensated |
| Battery low voltage disconnect | 1.75V/cell, 10 second delay |
| Battery overload protection | MOSFET switch in battery positive |
| Battery reverse polarity protection | Front panel fuse |
| Battery to load voltage drop | 0.25V/0.13V/0.10V max. at 10A/5A/2.5A |
| Battery low voltage alarm | 1.80 V/cell |
| SAFETY & STANDARDS | |
|---|---|
| Safety | AS/NZS60950.1 |
| Protection Degree | IP20 |
| Protection against shock | Class I, with PE connection |
| EMC RF emissions | AS/NZS CISPR 11, Grp 1, Class B |
| Harmonic current | AS/NZS 61000.3.2 |
| Isolation | Input to output: 4242Vdc, 1 min Input to ground: 2121Vdc, 1 min Output to ground: 707Vdc, 1 min |
Selection Table
| MODEL NUMBER | OUTPUT VOLTAGE | RATED TOTAL OUTPUT CURRENT¹ | MAXIMUM LOAD CURRENT | BATTERY CHARGING CURRENT LIMIT | OUTPUT POWER |
|---|---|---|---|---|---|
|
PB358-12DIN |
13.8Vdc | 10A | 10A | 0.5 to 10A Setpoint = 2.0A | 138W |
|
PB358-12DIN-IEC |
13.8Vdc | 10A | 10A | 0.5 to 10A Setpoint = 2.0A | 138W |
|
PB358-24DIN |
27.6Vdc | 5A | 5A | 0.2 to 5A Setpoint = 1.0A | 138W |
|
PB358-24DIN-IEC |
27.6Vdc | 5A | 5A | 0.2 to 5A Setpoint = 1.0A | 138W |
|
PB358-48DIN |
55.2Vdc | 2.5A | 2.5A | 0.1A to 2.5A Setpoint = 0.5A | 138W |
|
PB358-48DIN-IEC |
55.2Vdc | 2.5A | 2.5A | 0.1A to 2.5A Setpoint = 0.5A | 138W |
¹ Rated Total Output Current = sum of load and battery charging current.
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.
Related Products
- Smart All-in-One DC-UPS
- 13.8Vdc (10A) & 27.6Vdc (5A) Models
- Advanced Alarms, Battery Testing & Ethernet Option