Phoenix Contact BPC Series: Smarter Connectivity for Battery Storage

Reliable connectivity for modern battery systems: meet the Phoenix Contact BPC high-power connector series  

It’s a question we hear frequently in the field: What is the best way to interconnect battery storage units?

Should you go with a connector or a screw terminal? If you’re planning for any kind of future-proofing or system reconfiguration, a connector is almost always the superior choice. Beyond the obvious speed of installation and maintenance, the primary driver here is safety. When a connector is unplugged, the touch-proof design ensures accidental contact won’t lead to short circuits or electric shocks. Naturally, there are several other advantages to this pluggable approach, which we’ll dive into below.

Why opt for Phoenix Contact DC battery-pole connectors?

For batteries and high-capacity hardware, it is vital to use interfaces that can reliably handle the required power load. This pluggable approach excels in systems requiring a detachable connection, especially where battery sources need to be re-combined or scaled over time. 

Choosing Phoenix Contact solutions and power connectors is essentially a "safe bet". They are a powerhouse in this industry, known for delivering top-tier quality and reliability across the entire system.  

Single-pole BPC series connectors are closely linked to the global transition toward green energy and the electrification of transport - both of which rely on the dependable storage of massive amounts of energy. Consequently, you’ll find them integrated into everything from building-level energy storage systems (ESS) and high-reliability backup units to electrified construction machinery and portable power stations.

As František Ďuríšek, Product Manager at SOS electronic, puts it: "When we feature a specific product, we’re really talking about the strength of the entire range. Development is rarely a straight line, and requirements often shift during the testing phase. If a particular part doesn’t end up being the perfect fit for your design, the solution is usually right there in the same series - just a different configuration away."

Features and benefits of Phoenix Contact high-power DC connectors  

Key specifications for the BPC 400 C 120 OG (1571322):

• Single-pole high-power connector (Orange + / Black –)
• Rated voltage: 1500 V
• Rated current: 350 A
• Conductor cross-section: 120 mm²
• Contact resistance: ≤0,5 mΩ
• Silver-plated lamella contact
• Protection rating: IP65/IP67 when mated
• Flammability rating: UL94 V0

 Core advantages across the BPC high-power DC series:

• The locking system provides clear, tactile feedback for secure connection.
• Integrated coding system prevents any risk of reversing poles.
• The connector is fully suitable for outdoor applications. 
• Once plugged in, the connector can rotate freely through 360°.

SOS electronic’s range of Phoenix Contact single-pole DC connectors

We have added the complete BPC connector series to our range to cover energy storage systems requiring various current ratings and cable cross-sections. 

For mid-range applications up to 250 A and 1500 V, the ES-FT-BPC-B/S 35-70 OG (1228829) panel mount connector provides a robust interface. Depending on your specific current and cable requirements, it can be paired with 

• the ES-BPC-C 50-70 OG (1155594) cable connector for full 1 500 V / 250 A capacity (50 to 70 mm² cross-sections), 
• or the ES-BPC-C 35 OG (1176276) for 1 500 V / 160 A loads using a 35 mm² conductor. 

When your system demands higher performance up to 350 A, we recommend:

• the BPC 400 C 120 OG (1571322) cable connector, which mates with 
• the BPC 400 FT B/S 95-120 OG panel mount version.

For lighter hardware requiring up to 120 A, the combination of 

• the BPC 120 C 25 BK (1571084) cable connector and 
• the BPC 120 FT B 16-25 BK (1571064) panel counterpart offers a compact and reliable solution.

Choose the configuration that best fits your specific requirements

While we maintain a stock of key single-pole BPC series connectors for immediate delivery, we can also provide other variants on highly competitive terms, sourced directly from the manufacturer upon request.

Interested in more information about Phoenix Contact products or need technical advice on choosing the right product? Have any other questions or requests? Fill out the form below, and we’ll be happy to help!