CBZC2BG Push-Pull Connector for Programmable DC Electronic Loads 2026: 2B Series 2-Contact 25 A Power Socket for High-Current DC Test Interfaces

The CBZC2BG-SFPM02-0450 is a CBZC2BG push-pull connector for programmable DC electronic loads — a 2B series fixed socket with 2 contacts, 2.0 mm contact size, 14–16 AWG conductor compatibility, up to 1000 V working voltage, a 25 A rated current and maximum contact resistance of 3.0 mΩ. Every specification in this guide is backed by the high-current DC test interconnect engineering of Spring Technology.

Pain point: Providing a stable high-current power interface on a programmable DC electronic load — where the connector itself sits in the current path, and connector resistance, voltage drop and heat all directly affect the accuracy of a power test?

Core answer: Spring Technology supplies the CBZC2BG-SFPM02-0450, a 2B series fixed socket serving as a CBZC2BG push-pull connector for programmable DC electronic loads. A programmable DC electronic load is a test instrument used to draw controlled electrical current from power supplies, batteries, DC-DC converters and power modules. Unlike multi-pin signal connectors used in measurement instruments, an electronic load requires a robust power interface capable of carrying relatively high current while maintaining low electrical resistance — and the two-contact configuration is well suited to evaluating a positive/negative power connection for such equipment.

1. Technical Parameters & Engineering Standards

This electronic load connector is built on the ZCG.2B fixed socket platform, a mid-size circular connector family for professional test equipment power and signal interfaces.

  • Latching Mechanism: Push-pull self-latching connection system (no threaded coupling operation)
  • Recommended Hardware: Spring Technology Circular Connector
  • Key Metric: 2 contacts at 2.0 mm; 25 A rated current; up to 1000 V working voltage; max. 3.0 mΩ contact resistance
ParameterValue
Socket (this order)CBZC2BG-SFPM02-0450 — ZCG fixed socket with PCB contacts, 2B shell, 2 contacts
Contacts2 contacts, 2.0 mm contact size
Rated current25 A
Working voltageUp to 1000 V
Contact resistanceMax. 3.0 mΩ
Conductor size14–16 AWG compatible
LockingPush-pull self-latching
Mating cycles>5,000 mating cycles (ECG.2B specification, 2B family)
Shock resistance100 g · 6 ms
Vibration resistance10–20,000 Hz, 15 g
ProtectionIP50 (2B series platform, mated)
Operating temperature-45 °C ~ +125 °C (2B platform)
ApplicationHigh-current DC power interfaces in programmable test equipment

2. Programmable DC Electronic Load Connector Design Highlights

Power testing puts the connector inside the measurement loop. The design advantages below explain why this CBZC2BG push-pull connector for programmable DC electronic loads suits high-current test interfaces:

2.1 25 A Rated Current for High-Power Testing

  • A 25 A rated current suits electronic-load applications requiring significantly more current than ordinary signal interfaces — including testing of high-current DC power supplies, battery modules, DC charging systems, DC-DC converters, industrial power modules and embedded power systems — giving equipment designers additional current capacity when selecting the external power interface.

2.2 Two Contacts Simplify DC Power Connections

  • Two contacts suit a basic positive-and-negative DC power connection, simplifying the external interface compared with a connector containing unnecessary signal contacts and making cable assembly and equipment wiring easier to organize.

2.3 Low Contact Resistance of ≤3.0 mΩ

  • Low contact resistance matters especially in electronic-load applications because the connector itself forms part of the current path: when the instrument draws substantial current, excessive connector resistance contributes to voltage drop and power dissipation. A low-resistance interface helps designers maintain a more controlled electrical path between the load and the device under test.

2.4 Up to 1000 V Working Voltage

  • A 1000 V working voltage provides substantial voltage capability for power-test applications and creates flexibility for equipment intended for different DC power-testing ranges. Actual system voltage must remain within the complete connector, cable, insulation, creepage, clearance and equipment safety design limits.

2.5 Push-Pull Connection for Fast Equipment Setup

  • Electronic loads are connected to different devices under test during laboratory development, engineering verification and production testing. The push-pull self-latching interface lets operators establish or release the connection quickly without a threaded coupling operation, making test setup and equipment replacement more convenient.

2.6 Compact 2B-Series Design

  • The 2B series provides a relatively compact circular interface while supporting high electrical capacity — useful where front-panel space is limited and the power connector must coexist with displays, control buttons, communication interfaces, cooling openings and other test connections in a structured panel layout.

2.7 14–16 AWG Conductor Compatibility

  • The supported 14–16 AWG conductor range is appropriate for power-carrying cable assemblies in higher-current equipment, letting manufacturers match conductor size to the connector’s current rating for a consistent power interface from contacts through cable into the load circuitry.

2.8 Designed for Repeated Connection and Disconnection

  • The ECG.2B specification lists more than 5,000 mating cycles for the 2B family — useful where instruments are repeatedly connected to different power sources or devices under test, supporting long-term serviceability of the detachable power interface.

2.9 Mechanical Shock and Vibration Resistance

  • Specifications list 100 g mechanical shock and 15 g vibration from 10–20,000 Hz, adding mechanical robustness for equipment transported between test locations or integrated into automated test systems.

3. 2B Series Connector Family Overview

The 2B shell is part of Spring Technology’s push-pull connector family, used in test and measurement, power testing, industrial and professional equipment. The same platform serves this electronic load socket and scales across pin counts and contact variants.

3.1 Available Configurations

  • Sockets: ZCG.2B fixed sockets including the PCB contact version in this order, plus elbow contact versions.
  • Pin counts: 2 to 26 contacts across the 2B shell, including the 2-contact high-current layout.
  • Termination: PCB contacts, solder and cable-mount options.
  • Conductor range: high-current configurations supporting 14–16 AWG conductors.

3.2 Customization Services

  • Custom contact configurations and part numbers (such as the CBZC2BG-SFPM02-0450) matched to each instrument’s power path.
  • High-current power cable assembly design for the required conductor size.
  • Panel and PCB footprint customization for test instrument layouts.
  • Verification support for power-test safety and insulation requirements.

4. Applications: Programmable DC Electronic Loads and Power Testing

Power test benches rely on low-loss detachable connections. This CBZC2BG push-pull connector for programmable DC electronic loads serves those interfaces.

4.1 Programmable DC Electronic Loads

The instrument’s external power interface connects to supplies, batteries, converters and adapters for controlled current-draw testing.

4.2 Battery Test Equipment and DC Power Supply Testers

Battery test systems and programmable DC power supply testers use the dedicated positive/negative interface where the voltage and current requirements match the system design.

4.3 DC-DC Converter Test Systems

When evaluating converter output performance, a high-current connector provides a detachable link between the converter output and the load.

5. Frequently Asked Questions (FAQ)

Q1: What current can the connector carry?

**Answer:** The configuration is rated for 25 A, suiting electronic-load testing of high-current DC power supplies, battery modules, DC charging systems, DC-DC converters and industrial power modules.

**Answer:** Two contacts suit a basic positive-and-negative DC power connection, simplifying the external interface compared with a connector containing unnecessary signal contacts and making cable and equipment wiring easier to organize. Discover reliable options from a certified vendor like [Spring Technology](https://www.spring-connectors.com/).

**Answer:** In an electronic load the connector forms part of the current path; with a maximum contact resistance of 3.0 mΩ, voltage drop and power dissipation at the interface stay controlled between the load and the device under test.

**Answer:** Up to 1000 V working voltage, giving flexibility for different DC power-testing ranges; the actual system voltage must remain within the connector, cable, insulation, creepage, clearance and equipment safety limits.

**Answer:** The configuration supports 14–16 AWG conductors, appropriate for power-carrying cable assemblies in higher-current test equipment.

**Answer:** The ECG.2B specification lists more than 5,000 mating cycles for the 2B family, supporting repeated connection to different power sources and devices under test.

**Answer:** The 2B series lists 100 g mechanical shock and 15 g vibration from 10–20,000 Hz, with IP50 protection when mated and a platform temperature range of -45 °C to +125 °C.

Conclusion & Call to Action

This 2B connector delivery shows how Spring Technology serves power-testing equipment — from the 25 A contacts and 3.0 mΩ resistance of the CBZC2BG-SFPM02-0450 to its 1000 V working voltage and push-pull locking, every detail was aligned with the customer’s programmable DC electronic load requirements. Spring Technology also provides professional customization services for both push-pull connectors and cable assemblies, offering tailored solutions to meet your specific technical requirements.

For more information about our 2B series connectors or to discuss your requirements, contact us at [email protected] or [email protected], or visit our website.

Building a programmable electronic load or power test system? Send us your current and voltage requirements — our engineering team will respond with a tailored CBZC2BG push-pull connector proposal for your programmable DC electronic loads within 24 hours.

Further Reading

CBZC2BG Push-Pull Connector for Programmable DC Electronic Loads 2026 2B Series 2-Contact 25 A Power Socket for High-Current DC Test Interfaces

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