{"product_id":"powerbox-13-8vdc-20a-battery-charger-system-with-heatsink-enclosure-mounted-pb251a-12cm-h","title":"Powerbox 13.8VDC 20A Battery Charger System with Heatsink – Enclosure Mounted | PB251A-12CM-H","description":"\u003cp data-start=\"243\" data-end=\"701\"\u003eThe Powerbox PB251A-12CM-H is a high-efficiency, enclosure-mounted battery charger system engineered for industrial-grade reliability. Delivering 13.8VDC at 20A output, this model is equipped with a supplementary heatsink for improved thermal management, making it ideal for demanding applications. Designed with a constant float voltage, current limiting, and an independent battery charging output, the PB251A-12CM-H ensures stable and safe power delivery.\u003c\/p\u003e\n\u003cp data-start=\"703\" data-end=\"1107\"\u003eThis unit includes advanced features such as DC OK and Battery OK alarms with relay outputs, Low Voltage Disconnect (LVD), and comprehensive protection mechanisms including short circuit and reverse polarity protection. Compatible with DC UPS systems and designed for network monitoring with optional SNMP connectivity, it suits critical environments where performance and reliability are non-negotiable.\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0637\/2838\/6287\/files\/PBOX1560_product-image_1.jpg?v=1750201798\" alt=\"\"\u003e\u003c\/p\u003e\n\u003chr data-start=\"1109\" data-end=\"1112\"\u003e\n\u003ch4 data-start=\"1114\" data-end=\"1140\"\u003e\u003cstrong data-start=\"1119\" data-end=\"1140\"\u003eWhat's in the Box\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-start=\"1141\" data-end=\"1233\"\u003e\n\u003cli data-start=\"1141\" data-end=\"1185\"\u003e\n\u003cp data-start=\"1143\" data-end=\"1185\"\u003e1 x Powerbox PB251A-12CM-H Battery Charger\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1186\" data-end=\"1219\"\u003e\n\u003cp data-start=\"1188\" data-end=\"1219\"\u003e1 x IEC Mains Cord with AU Plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1220\" data-end=\"1233\"\u003e\n\u003cp data-start=\"1222\" data-end=\"1233\"\u003eUser Manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1235\" data-end=\"1238\"\u003e\n\u003ch4 data-start=\"1240\" data-end=\"1261\"\u003e\u003cstrong data-start=\"1245\" data-end=\"1261\"\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-start=\"1262\" data-end=\"1595\"\u003e\n\u003cli data-start=\"1262\" data-end=\"1301\"\u003e\n\u003cp data-start=\"1264\" data-end=\"1301\"\u003e13.8VDC output with 20A total current\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1302\" data-end=\"1346\"\u003e\n\u003cp data-start=\"1304\" data-end=\"1346\"\u003eEnclosure-mounted with additional heatsink\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1347\" data-end=\"1379\"\u003e\n\u003cp data-start=\"1349\" data-end=\"1379\"\u003eCompatible with DC UPS systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1380\" data-end=\"1417\"\u003e\n\u003cp data-start=\"1382\" data-end=\"1417\"\u003eIndependent battery charging output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1418\" data-end=\"1447\"\u003e\n\u003cp data-start=\"1420\" data-end=\"1447\"\u003eLVD and overload protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1448\" data-end=\"1490\"\u003e\n\u003cp data-start=\"1450\" data-end=\"1490\"\u003eBattery condition monitoring with alarms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1491\" data-end=\"1538\"\u003e\n\u003cp data-start=\"1493\" data-end=\"1538\"\u003eReverse polarity and short circuit protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1539\" data-end=\"1595\"\u003e\n\u003cp data-start=\"1541\" data-end=\"1595\"\u003eOptional SNMP network enablement and temperature probe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1597\" data-end=\"1600\"\u003e\n\u003ch4 data-start=\"1602\" data-end=\"1634\"\u003e\u003cstrong data-start=\"1607\" data-end=\"1634\"\u003eDetailed Specifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"1636\" data-end=\"1657\"\u003e\u003cstrong data-start=\"1636\" data-end=\"1657\"\u003eElectrical Input:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1658\" data-end=\"1752\"\u003e\n\u003cli data-start=\"1658\" data-end=\"1693\"\u003e\n\u003cp data-start=\"1660\" data-end=\"1693\"\u003eVoltage: 190–264VAC or 225–400VDC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1694\" data-end=\"1714\"\u003e\n\u003cp data-start=\"1696\" data-end=\"1714\"\u003eFrequency: 45–65Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1715\" data-end=\"1734\"\u003e\n\u003cp data-start=\"1717\" data-end=\"1734\"\u003eCurrent: 1.4A max\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1735\" data-end=\"1752\"\u003e\n\u003cp data-start=\"1737\" data-end=\"1752\"\u003eInrush: 10A max\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1754\" data-end=\"1776\"\u003e\u003cstrong data-start=\"1754\" data-end=\"1776\"\u003eElectrical Output:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1777\" data-end=\"1892\"\u003e\n\u003cli data-start=\"1777\" data-end=\"1795\"\u003e\n\u003cp data-start=\"1779\" data-end=\"1795\"\u003eVoltage: 13.8VDC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1796\" data-end=\"1834\"\u003e\n\u003cp data-start=\"1798\" data-end=\"1834\"\u003eCurrent: 20A (16A load + 4A battery)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1835\" data-end=\"1866\"\u003e\n\u003cp data-start=\"1837\" data-end=\"1866\"\u003eLoad Regulation: 0.5% typical\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1867\" data-end=\"1892\"\u003e\n\u003cp data-start=\"1869\" data-end=\"1892\"\u003eRipple: 28mVp-p @100MHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1894\" data-end=\"1909\"\u003e\u003cstrong data-start=\"1894\" data-end=\"1909\"\u003eProtection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1910\" data-end=\"2022\"\u003e\n\u003cli data-start=\"1910\" data-end=\"1943\"\u003e\n\u003cp data-start=\"1912\" data-end=\"1943\"\u003eOver-voltage: 17.5–20V latching\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1944\" data-end=\"1998\"\u003e\n\u003cp data-start=\"1946\" data-end=\"1998\"\u003eAuto-resetting short circuit and overload protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1999\" data-end=\"2022\"\u003e\n\u003cp data-start=\"2001\" data-end=\"2022\"\u003eInternal battery fuse\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2024\" data-end=\"2042\"\u003e\u003cstrong data-start=\"2024\" data-end=\"2042\"\u003eEnvironmental:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2043\" data-end=\"2155\"\u003e\n\u003cli data-start=\"2043\" data-end=\"2089\"\u003e\n\u003cp data-start=\"2045\" data-end=\"2089\"\u003eOperating Temp: 0–70°C (derating above 25°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2090\" data-end=\"2126\"\u003e\n\u003cp data-start=\"2092\" data-end=\"2126\"\u003eHumidity: 5–90% RH, non-condensing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2127\" data-end=\"2155\"\u003e\n\u003cp data-start=\"2129\" data-end=\"2155\"\u003eNatural convection cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2157\" data-end=\"2172\"\u003e\u003cstrong data-start=\"2157\" data-end=\"2172\"\u003eMechanical:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2173\" data-end=\"2380\"\u003e\n\u003cli data-start=\"2173\" data-end=\"2213\"\u003e\n\u003cp data-start=\"2175\" data-end=\"2213\"\u003eDimensions: 264(L) x 186(W) x 67(H) mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2214\" data-end=\"2229\"\u003e\n\u003cp data-start=\"2216\" data-end=\"2229\"\u003eWeight: 2.1kg\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2230\" data-end=\"2279\"\u003e\n\u003cp data-start=\"2232\" data-end=\"2279\"\u003eInput Connector: IEC60320 Inlet (cord included)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2280\" data-end=\"2330\"\u003e\n\u003cp data-start=\"2282\" data-end=\"2330\"\u003eOutput Connector: 4-way pluggable screw terminal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2331\" data-end=\"2380\"\u003e\n\u003cp data-start=\"2333\" data-end=\"2380\"\u003eAlarm Connector: 6-way pluggable screw terminal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2382\" data-end=\"2397\"\u003e\u003cstrong data-start=\"2382\" data-end=\"2397\"\u003eCompliance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2398\" data-end=\"2471\"\u003e\n\u003cli data-start=\"2398\" data-end=\"2436\"\u003e\n\u003cp data-start=\"2400\" data-end=\"2436\"\u003eC-Tick, AS\/NZS 60950, AS\/NZS CISPR11\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2437\" data-end=\"2471\"\u003e\n\u003cp data-start=\"2439\" data-end=\"2471\"\u003eEMC Regulatory Compliance Marked\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2473\" data-end=\"2476\"\u003e\n\u003ch4 data-start=\"2478\" data-end=\"2501\"\u003e\u003cstrong data-start=\"2483\" data-end=\"2501\"\u003eBrand Overview\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"2502\" data-end=\"2780\"\u003e\u003cstrong data-start=\"2502\" data-end=\"2514\"\u003ePowerbox\u003c\/strong\u003e is a leading supplier of premium-grade power solutions tailored for industrial, telecommunication, and energy systems. With a focus on reliability, innovation, and regulatory compliance, Powerbox products are designed to meet the most stringent operational demands.\u003c\/p\u003e\n\u003chr data-start=\"2782\" data-end=\"2785\"\u003e\n\u003ch4 data-start=\"2787\" data-end=\"2819\"\u003e\n\u003cstrong data-start=\"2792\" data-end=\"2800\"\u003eSKU:\u003c\/strong\u003e PBXPB251A-12CM-H\u003c\/h4\u003e\n\u003ch4 data-start=\"2820\" data-end=\"2856\"\u003e\n\u003cstrong data-start=\"2825\" data-end=\"2842\"\u003eSupplier SKU:\u003c\/strong\u003e PB251A-12CM-H\u003c\/h4\u003e\n\u003chr data-start=\"2858\" data-end=\"2861\"\u003e\n\u003ch4 data-start=\"2863\" data-end=\"2895\"\u003e\u003cstrong data-start=\"2868\" data-end=\"2895\"\u003ePractical Use Scenarios\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-start=\"2896\" data-end=\"3081\"\u003e\n\u003cli data-start=\"2896\" data-end=\"2942\"\u003e\n\u003cp data-start=\"2898\" data-end=\"2942\"\u003eBattery backup systems in telecommunications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2943\" data-end=\"2993\"\u003e\n\u003cp data-start=\"2945\" data-end=\"2993\"\u003eIndustrial automation requiring stable DC supply\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2994\" data-end=\"3036\"\u003e\n\u003cp data-start=\"2996\" data-end=\"3036\"\u003ePower management in remote installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3037\" data-end=\"3081\"\u003e\n\u003cp data-start=\"3039\" data-end=\"3081\"\u003eSecurity and alarm system battery charging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3083\" data-end=\"3086\"\u003e\n\u003ch4 data-start=\"3088\" data-end=\"3119\"\u003e\u003cstrong data-start=\"3093\" data-end=\"3119\"\u003eDatasheets \u0026amp; Downloads\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-start=\"3120\" data-end=\"3189\"\u003e\n\u003cli data-start=\"3120\" data-end=\"3189\"\u003e\n\u003cp data-start=\"3122\" data-end=\"3189\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0637\/2838\/6287\/files\/P5.pdf?v=1750202896\"\u003e\u003cspan class=\"\" data-state=\"closed\"\u003ePB251A-12CM-H Technical Datasheet (PDF)\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3191\" data-end=\"3194\"\u003e\n\u003ch3 data-start=\"3196\" data-end=\"3256\"\u003e\u003cstrong data-start=\"3200\" data-end=\"3256\"\u003eExcellence for the Australian and New Zealand Market\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"3257\" data-end=\"3562\"\u003e\n\u003cli data-start=\"3257\" data-end=\"3312\"\u003e\n\u003cp data-start=\"3259\" data-end=\"3312\"\u003eFully compliant with AS\/NZS 60950 and EMC regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3313\" data-end=\"3365\"\u003e\n\u003cp data-start=\"3315\" data-end=\"3365\"\u003eC-Tick certified for electromagnetic compatibility\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3366\" data-end=\"3441\"\u003e\n\u003cp data-start=\"3368\" data-end=\"3441\"\u003eDesigned and optimized for rugged Australian and New Zealand environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3442\" data-end=\"3504\"\u003e\n\u003cp data-start=\"3444\" data-end=\"3504\"\u003eSourced exclusively through authorized Powerbox distributors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3505\" data-end=\"3562\"\u003e\n\u003cp data-start=\"3507\" data-end=\"3562\"\u003eWarranty support handled directly with the manufacturer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3564\" data-end=\"3567\"\u003e\n\u003ch4 data-start=\"3569\" data-end=\"3601\"\u003e\u003cstrong data-start=\"3574\" data-end=\"3601\"\u003eFAQs – PBXPB251A-12CM-H\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"3603\" data-end=\"3740\"\u003e\u003cstrong data-start=\"3603\" data-end=\"3663\"\u003eQ1: What is the total power output of the PB251A-12CM-H?\u003c\/strong\u003e\u003cbr data-start=\"3663\" data-end=\"3666\"\u003eA1: The PBXPB251A-12CM-H delivers a total output power of 275W at 13.8VDC.\u003c\/p\u003e\n\u003cp data-start=\"3742\" data-end=\"3893\"\u003e\u003cstrong data-start=\"3742\" data-end=\"3800\"\u003eQ2: Can the PBXPB251A-12CM-H operate without AC input?\u003c\/strong\u003e\u003cbr data-start=\"3800\" data-end=\"3803\"\u003eA2: Yes, the charger supports battery operation and indicates AC loss via the DC OK alarm.\u003c\/p\u003e\n\u003cp data-start=\"3895\" data-end=\"4073\"\u003e\u003cstrong data-start=\"3895\" data-end=\"3968\"\u003eQ3: Does the PBXPB251A-12CM-H support battery temperature monitoring?\u003c\/strong\u003e\u003cbr data-start=\"3968\" data-end=\"3971\"\u003eA3: Yes, optional temperature probes (2.5m or 5m) can be added for enhanced battery charge management.\u003c\/p\u003e\n\u003cp data-start=\"4075\" data-end=\"4233\"\u003e\u003cstrong data-start=\"4075\" data-end=\"4144\"\u003eQ4: Is SNMP network monitoring available on the PBXPB251A-12CM-H?\u003c\/strong\u003e\u003cbr data-start=\"4144\" data-end=\"4147\"\u003eA4: Yes, network enablement is available as an optional feature for remote monitoring.\u003c\/p\u003e\n\u003cp data-start=\"4235\" data-end=\"4386\"\u003e\u003cstrong data-start=\"4235\" data-end=\"4299\"\u003eQ5: What type of mounting does the PBXPB251A-12CM-H support?\u003c\/strong\u003e\u003cbr data-start=\"4299\" data-end=\"4302\"\u003eA5: It is designed for enclosure mounting with an optional rack-mount kit available.\u003c\/p\u003e","brand":"CCTV Tradie","offers":[{"title":"Default Title","offer_id":44530350686311,"sku":"PB251A-12CM-H-SED","price":1346.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/8268\/2471\/files\/PBOX1560_product-image_1.jpg?v=1788076519","url":"https:\/\/shop.underbrella.com.au\/products\/powerbox-13-8vdc-20a-battery-charger-system-with-heatsink-enclosure-mounted-pb251a-12cm-h","provider":"UnderBrella","version":"1.0","type":"link"}