The Anderson SB 50 connectors, building on a design pioneered in 1953, are the industry standard for DC power distribution and battery connections. These two-pole connectors feature a robust one-piece plastic housing with stainless steel springs to secure low-resistance contacts. Designed for versatility, they accommodate wire sizes from 16 to 6 AWG (1.5 to 13.3 mm) and are suitable for applications requiring up to 120 amps. Key advantages include low resistance silver or tin-plated copper contacts for high current capacity, UL rating for hot-plugging up to 50 amps, and compatibility with wire, PCB, and busbar contacts, enabling a unified connection system for diverse needs.
| Specification | Value | Notes |
|---|---|---|
| Current Rating (UL 1977 Wire-to-Wire) | 120 Amps | (6 AWG) |
| Current Rating (UL 1977 Wire-to-PCB) | 50 Amps | (6 AWG) |
| UL Hot Plug Current Rating | 50 Amps | 250 Cycles at 120V DC (Wire to Wire) |
| PCB Hot Plug Current Rating | 40 Amps | (Vertical Mini Powerclaw) |
| Voltage Rating (AC/DC) | 600 Volts | UL 1977 |
| PCB Connector Recommended Voltage | 950 Volts | Standard Contact, per IEC 60950-1 Table 2L |
| Dielectric Withstanding Voltage | 2,200 Volts AC | |
| Avg. Mated Contact Resistance | 0.200 mOhms | 1 1/4 of 6 AWG wire |
| PCB Contact to Wire Resistance | 0.500 mOhms | |
| Wire Size Range (Wire Contacts) | 16 to 6 AWG (1.3 to 13.3 mm) | With bushings |
| Max. Wire Insulation Diameter | 0.440 in. (11.200 mm) | |
| Operating Temperature (Standard) | -20C to 105C (-4F to 221F) | |
| Operating Temperature (Chemical Resistant) | -40C to 105C (-40F to 221F) | |
| Mating Cycles (Silver Plated) | 10,000 | No Load |
| Mating Cycles (Tin Plated) | 1,500 | No Load |
| Avg. Mating / Unmating Force (Low Force Contacts) | 10 Lbf. (44 N) | Wire to Wire |
| Avg. Mating / Unmating Force (High Force Contacts) | 15 Lbf. (67 N) | Wire to Wire |
| Avg. Mating / Unmating Force (Standard Powerclaw) | 15 Lbf. (66 N) | Standard Powerclaw to Wire |
| Avg. Mating / Unmating Force (Mini Powerclaw) | 8 Lbf. (36 N) | Mini Powerclaw to Wire |
| PCB Mounting Style | Plated Through Hole | |
| Max PCB Thickness (Standard) | 0.15 in. (0.381 mm) | |
| Max PCB Thickness (Mini) | 0.25 in. (0.635 mm) | |
| Min. Contact / Spring Retention Force (Wire Housing) | 50 Lbf. (222 N) | |
| Mechanical Shock | 50 gs | MIL-STD-202 Method 213 Condition A |
| Vibration (High Frequency) | 10 gs | MIL-STD-202 Method 204 Condition A |
| Environmental Sealing (with Boots) | IP64 | |
| Touch Safety (Mated) | IEC 60529 - IP20 | Wire Contacts & PCB Mating Interface |
| Touch Safety (Unmated) | IEC 60529 IP10 |
