903

Frequently Asked Questions

Q: What is the 903 battery connector contact set used for?
A: The 903 is a heavy-duty battery connector contact set (SB50A #6) for electric lift truck applications. It provides the critical electrical connection points in Anderson SB50 series connectors rated for 50A continuous current.

Q: What are the electrical specifications of the 903 contact set?
A: The 903 is rated for 50A continuous current, 600 VDC maximum voltage, and #6 AWG stranded wire. Copper alloy construction with silver plating reduces resistance and extends service life in high-current charging circuits.

Q: Which electric lift trucks and charger systems are compatible with the 903?
A: The 903 works with Crown, Toyota, Raymond, Yale, Hyster, and other electric lift trucks using Anderson SB50 series connectors. It is also compatible with many battery chargers and DC power systems rated for 50A at 48V or higher.

Q: How do I know if the 903 contacts need replacement?
A: Signs of worn 903 contacts include excessive heat during charging, arcing, loose connections, corroded or discolored contact surfaces, or intermittent charging problems. Replace contacts showing these failure symptoms.

Q: Is the 903 installed with crimp or compression terminals?
A: The 903 uses crimp installation on #6 AWG stranded wire. Proper crimp connection is critical for reliable electrical contact and current flow in battery charging applications.

Q: Can the 903 contact set be used in high-amperage forklift chargers?
A: The 903 is rated for 50A continuous current. For chargers exceeding this rating, verify the charger specification against the 50A limit. Oversized chargers may require higher-amperage contact sets.