SURE-SEAL CONNECTIONS

Sure-Seal circular connector contacts accommodate wire sizes from 20 to 14 AWG, depending on the specific contact. For example, the 820TE0 male crimp contact accepts 20 to 18 AWG (0.4-0.75 mm²), while the 820TC6 male crimp contact handles 18 to 14 AWG. The female contacts, such as the 820TF9, also cover 18 to 14 AWG. It is important to match the contact's wire range to the actual conductor size to ensure a proper crimp and reliable connection. Using a wire outside the specified range may result in inadequate crimp strength or damage to the contact.

Sure-Seal contacts are available with tin, gold, or silver plating over a copper alloy base. Tin plating is common for general-purpose applications and offers good solderability and corrosion resistance. Gold plating, as seen on the 820TC7 male contact, provides low contact resistance and is suitable for low-level signal applications. Silver plating, used on the 820TH7 male contact, offers high conductivity and is often chosen for power applications. The choice of plating depends on the mating interface, environmental conditions, and electrical requirements. It is advisable to match the plating on both mating halves to avoid galvanic corrosion.

Yes, Sure-Seal circular connectors and contacts are rated for both AC and DC voltages. For instance, the 820TC6 male contact is rated for 400V AC, while the 820TJ9 male contact is rated for 48V DC. The voltage rating depends on the specific contact and connector combination. When selecting components, ensure that the voltage rating meets or exceeds the application's requirements. It is also important to consider the dielectric withstand voltage and creepage distances, especially in higher-voltage applications. Always refer to the manufacturer's datasheet for precise ratings.

Insulation support contacts, such as the 820TC6, have an additional crimp barrel that grips the wire insulation, providing strain relief and reducing the risk of wire breakage due to vibration or flexing. Non-insulation support contacts, like the 820TF9, only crimp to the conductor, resulting in a more compact connection but without the strain relief benefit. The choice depends on the application's mechanical requirements. Insulation support is often preferred in high-vibration environments, while non-insulation support may be used where space is limited and the wire is adequately supported elsewhere.

Sure-Seal offers contacts specifically designed for the Mini Sure-Seal circular connector series, such as the 820TE0 male crimp contact. These contacts are not interchangeable with standard Sure-Seal connectors due to differences in contact size and retention mechanisms. The Mini Sure-Seal series uses smaller contacts that accommodate 20 to 18 AWG wire, while standard Sure-Seal contacts typically handle 18 to 14 AWG. It is essential to select the correct contact for the connector series to ensure proper fit and function. Always verify compatibility using the manufacturer's cross-reference.

Sure-Seal circular connectors are used in industrial control panels, sensors, outdoor equipment, and transportation systems where environmental sealing is required. They are suitable for applications exposed to moisture, dust, and vibration. The sealed design helps maintain signal integrity and power transmission in harsh conditions. Common industries include automation, energy, and transportation. The connectors are available in various shell sizes and insert arrangements to accommodate different signal and power requirements. When specifying, consider the IP rating, temperature range, and mating cycles needed for the application.