Stock bobbins come in a range of sizes, including extra-large

Description
Bobbins shown are examples from a wide range of stock bobbins made of DuPont Rynite® PET thermoplastic polyester resins.

Parts in rear of photo are representative of Michael's king-size bobbins for three-phase transformers for up to 10 kVA. Part at right rear, measuring 224 mm (8.8 in.) long by 68 mm (2.7 in.) high, serves in 4 to 5 kVA transformers. Bobbins in foreground comply with VDE 0551 specifications applicable to 'safety' transformers.

Benefits
Off-the-shelf bobbins to meet electrical standards.

Class B (130°C) and Class F (155°C) service, according to UL 1446. Michael's entire range of bobbins, molded in Rynite®, are available from stock.

Class H (180°C) and Class N (200°C), as well as Class B and F requirements. All bobbins are available in Rynite® on 10-day turnaround. The VDE 0551 bobbins shown in the foreground of the photo are made of this material.

Materials Used
Rynite® PET combines outstanding dielectric properties with excellent dimensional stability, strength, toughness, ease of molding, and high-temperature performance.

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