Battery Chargers
Powerbox PB256 SERIES DC-UPS / Battery Charger
The Powerbox PB256 Series DC-UPS and Battery Charger is a compact and dependable 138W power solution, trusted in over 50,000 installations to date across electronic security, access control, telecommunications, and water utility applications. Designed for long-term reliability and efficiency, it delivers uninterrupted DC power with intelligent battery management for critical infrastructure.
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Features
- Battery Backup System: ensuring continuous power supply to DC loads during mains powered interruptions.
- DC-UPS functionality with seperate current limited battery and load terminals. This ensures both loads and battery are protected.
- Trusted in Security Applications: Proven reliability as the backbone for electronic security across Australia, powering critical access control systems and associated security equipment.
- Available in 13.8Vdc or 27.6Vdc outputs, suitable for 12V and 24V battery systems, respectively.
- Comprehensive Alarms: including DC-OK and Battery Low alarms with LED indicators and voltage-free changeover relay contacts for system monitoring.
- Protective Features: Incorporates battery low voltage disconnect, battery overload protection, and optional conformal coating for operation in moist environments.
Specifications
Selection Table
Technical Illustrations
| INPUT | |
|---|---|
| Input Voltage | 190-.264Vac, or 190-.400Vdc |
| Frequency | 45 to 65 Hz |
| Input Current | 3A maximum |
| Inrush current | 15A on cold start |
| Line Regulation | 0.2% typical |
| ALARMS AND BATTERY FUNCTIONS | |
|---|---|
| Converter ON/OK alarm | Indicated by voltage-free changeover relay contacts & green LED: ON=OK |
| Battery low alarm | < 11.3Vdc: 12V Battery < 22.6Vdc: 24V Battery Indicated by voltage-free changeover relay contacts & green LED: ON=OK. |
| Low voltage disconnect | 10.8V (Typical for 12Vdc battery) 21.6V (Typical for 24Vdc battery) |
| Battery over-load protection | Electronic circuit breaker auto-reset |
| Battery to load voltage drop | 0.2 V (27.6V output) |
| OUTPUT | |
|---|---|
| Output Voltage | 13.8Vdc, 27.6Vdc |
| Output Power | 138W, See power derating curve |
| Output Current | 13.8Vdc: 10A 27.6Vdc: 5A See Selection Table |
| Load regulation | 2% typical |
| Ripple & Noise | 25 mVp-p (13.8Vdc output) 45mVp-p (27.6Vdc output) |
| Efficiency | > 80% |
| OPTIONAL FEATURES¹ | |
|---|---|
| Battery Charge Limit | Option BCL: Specify battery charge current based on battery size. |
| Heatsink | Option H: Supplementary heatsink |
| Conformal Coating | Option CC: Tropic protection for moist areas |
| PROTECTION | |
|---|---|
| Current limit type (Load circuit) | Constant current > LVD volts Foldback & hiccup < LVD volts |
| Short circuit protection | Indefinite, auto-resetting |
| Over-voltage protection | 15.5 to 19.5 V latching (13.8Vdc output) 31.5 to 39 V latching (27.6Vdc output) |
| Reverse polarity protection | Internal fuse |
| Isolation | Input to Output: 2.1Kvdc 1 min Output to Ground: 2.1Kvdc 1 min Output to Ground: 700Vdc 1 min |
| STANDARDS AND APPROVALS | |
|---|---|
| C-Tick | AS/NZS CISPR11 Group 1 Class A. |
| Safety | Complies with AS/NZS 60950, Class 1 |
| EMC | Emissions comply with AS/NZS CISPR11, Group 1, Class B. Complies with ACA EMC Scheme, C-Tick |
| ENVIRONMENTAL | |
|---|---|
| Operating temperature | 0 to 50°C ambient For derating, see curve in technical illustrations |
| Humidity | 5 to 90% relative humidity (non-condensing) |
| Over-temperature protection | Automatic & auto-resetting |
| Cooling requirement | Natural convection |
| Shock/Impact | 50G 11mS once each along x, y and z axis |
| MECHANICAL | |
|---|---|
| Input Connector | AC Mains 10A Class 1 IEC60320 power inlet |
| Load and Battery Connector | 4 way pluggable screw terminal block. Suitable for up to 1.5mm² wire |
| Alarms Connector | 6 way pluggable screw terminal block Suitable for up to 1.5mm² wire |
| Case size | 230 L x 93 W x 46 H (mm) |
| Weight | 850g |
| Security Cabinet | Option W: WMBB-C-S Wall Mount Box Black with battery Cables and tamper Switch View WMBB-C-S Security Cabinet |
| MODEL NUMBER | OUTPUT VOLTAGE | LOAD CURRENT | BATTERY CURRENT² | TOTAL CURRENT³ | TOTAL OUTPUT POWER |
|---|---|---|---|---|---|
| PB256-1210CML | 13.8Vdc | 8A | 2A | 10A | 138W |
| PB256-2405CML | 27.6Vdc | 4A | 1A | 5A | 138W |
¹ Example Ordering Code: PB256-1210CML-CC-H4, includes conformal coating, additional heatsink and 4A battery charge current limit
² Other optional BCL, Battery Charging current Limits available on request, factory set.
³ Total output current = sum of load and battery charging current.
| INPUT | |
|---|---|
| Input Voltage | 190-.264Vac, or 190-.400Vdc |
| Frequency | 45 to 65 Hz |
| Input Current | 3A maximum |
| Inrush current | 15A on cold start |
| Line Regulation | 0.2% typical |
| ALARMS AND BATTERY FUNCTIONS | |
|---|---|
| Converter ON/OK alarm | Indicated by voltage-free changeover relay contacts & green LED: ON=OK |
| Battery low alarm | < 11.3Vdc: 12V Battery < 22.6Vdc: 24V Battery Indicated by voltage-free changeover relay contacts & green LED: ON=OK. |
| Low voltage disconnect | 10.8V (Typical for 12Vdc battery) 21.6V (Typical for 24Vdc battery) |
| Battery over-load protection | Electronic circuit breaker auto-reset |
| Battery to load voltage drop | 0.2 V (27.6V output) |
| OUTPUT | |
|---|---|
| Output Voltage | 13.8Vdc, 27.6Vdc |
| Output Power | 138W, See power derating curve |
| Output Current | 13.8Vdc: 10A 27.6Vdc: 5A See Selection Table |
| Load regulation | 2% typical |
| Ripple & Noise | 25 mVp-p (13.8Vdc output) 45mVp-p (27.6Vdc output) |
| Efficiency | > 80% |
| OPTIONAL FEATURES¹ | |
|---|---|
| Battery Charge Limit | Option BCL: Specify battery charge current based on battery size. |
| Heatsink | Option H: Supplementary heatsink |
| Conformal Coating | Option CC: Tropic protection for moist areas |
| PROTECTION | |
|---|---|
| Current limit type (Load circuit) | Constant current > LVD volts Foldback & hiccup < LVD volts |
| Short circuit protection | Indefinite, auto-resetting |
| Over-voltage protection | 15.5 to 19.5 V latching (13.8Vdc output) 31.5 to 39 V latching (27.6Vdc output) |
| Reverse polarity protection | Internal fuse |
| Isolation | Input to Output: 2.1Kvdc 1 min Output to Ground: 2.1Kvdc 1 min Output to Ground: 700Vdc 1 min |
| STANDARDS AND APPROVALS | |
|---|---|
| C-Tick | AS/NZS CISPR11 Group 1 Class A. |
| Safety | Complies with AS/NZS 60950, Class 1 |
| EMC | Emissions comply with AS/NZS CISPR11, Group 1, Class B. Complies with ACA EMC Scheme, C-Tick |
| ENVIRONMENTAL | |
|---|---|
| Operating temperature | 0 to 50°C ambient For derating, see curve in technical illustrations |
| Humidity | 5 to 90% relative humidity (non-condensing) |
| Over-temperature protection | Automatic & auto-resetting |
| Cooling requirement | Natural convection |
| Shock/Impact | 50G 11mS once each along x, y and z axis |
| MECHANICAL | |
|---|---|
| Input Connector | AC Mains 10A Class 1 IEC60320 power inlet |
| Load and Battery Connector | 4 way pluggable screw terminal block. Suitable for up to 1.5mm² wire |
| Alarms Connector | 6 way pluggable screw terminal block Suitable for up to 1.5mm² wire |
| Case size | 230 L x 93 W x 46 H (mm) |
| Weight | 850g |
| Security Cabinet | Option W: WMBB-C-S Wall Mount Box Black with battery Cables and tamper Switch View WMBB-C-S Security Cabinet |
| MODEL NUMBER | OUTPUT VOLTAGE | LOAD CURRENT | BATTERY CURRENT² | TOTAL CURRENT³ | TOTAL OUTPUT POWER |
|---|---|---|---|---|---|
| PB256-1210CML | 13.8Vdc | 8A | 2A | 10A | 138W |
| PB256-2405CML | 27.6Vdc | 4A | 1A | 5A | 138W |
¹ Example Ordering Code: PB256-1210CML-CC-H4, includes conformal coating, additional heatsink and 4A battery charge current limit
² Other optional BCL, Battery Charging current Limits available on request, factory set.
³ Total output current = sum of load and battery charging current.
Find the Right Model
| Model Number | Input Voltage (Vac) | Output Voltage (Vdc) | Output Current (A) | ||
|---|---|---|---|---|---|
|
PB256-1210CML | 190...264Vac 50/60Hz | 13.8Vdc | 10A (Default = 8A Load / 2A Battery) | |
|
|
PB256-2405CML | 190...264Vac 50/60Hz | 27.6Vdc | 5A (Default = 4A Load / 1A Battery) |
Need help finding the right product model?
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