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Eaton Bussmann FNQR310 Control Circuit Fuse

This is a slow blow, time lag fuse designed for control circuit transformer protection with a voltage rating of 600 VAC and a current rating of 0.3 Amperes. It features a cylindrical case measuring 10.30mm in diameter and 38.00mm in length, made with a 5AG midget case, suitable for mounting in fuse holders. The fuse provides high inrush time-delay, making it ideal for control transformers that experience high startup currents up to 85 times full load. It protects downstream components against damaging thermal and magnetic effects of short-circuit currents, and uses a melamine tube with nickel-plated brass endcaps for durability.

Authorized Distributors
Source:DigiKey
Part No:FNQ-R-3-10
Stock:0
Inv Date:06-12-2026
Price: Unit price: $94.814
Buy/RFQ:
Source:DigiKey
Part No:FNQ-R-3/10
Stock:0
Inv Date:06-12-2026
Price: Unit price: $94.814
Buy/RFQ:
Part No:FNQ-R-3/10
Stock:0
Inv Date:06-13-2026
Price: Unit price: $111.53
Buy/RFQ:
Part No:FNQ-R-3/10
Stock:4
Inv Date:06-12-2026
Price: Unit price: $134.95
Buy/RFQ:
Part No:FNQ-R-3/10
Stock:28
Inv Date:06-12-2026
Price: Unit price: $68.88
Buy/RFQ:
Part No:FNQ-R-3/10
Stock:28
Inv Date:06-12-2026
Price: Unit price: $68.88
Buy/RFQ:

Eaton Bussmann FNQR310 Control Circuit Fuse Specifications:

  • Voltage Rating: 600 VAC
  • Current Rating: 0.3 Amperes
  • Package Size: 10.30mm diameter, 38.00mm length
  • Case Type: 5AG midget
  • Construction: Melamine tube with nickel-plated brass endcaps
  • Type: Slow blow, time lag fuse
  • Designed for control circuit transformer protection
  • Features high inrush time-delay suitable for transformer startup currents
  • Interrupting Rating: 200,000A RMS Sym.
  • Compliance: UL Listed, CSA Certified, CE
  • Mounting: Designed for holder mounting

Buy the Buy Bussmann Time-Delay Fuses Part Number FNQR310 Online

Purchase the Bussmann FNQR310 fuse online today to ensure optimal protection for your control circuit transformers. With its 600V voltage rating, 0.3A current capacity, and slow blow delay, it effectively handles high inrush currents up to 85 times the full load. Its durable construction with a cylindrical case and nickel-plated brass endcaps ensures longevity and reliable operation. Ideal for control transformers, this fuse safeguards downstream components against short-circuits and thermal effects, providing peace of mind in your electrical systems. Order now and experience seamless protection and high-quality craftsmanship.

Buy Bussmann FNQR310 fuse now and experience unmatched reliability and performance in control circuit transformer applications.

Frequently Asked Questions

Where can I buy Eaton Bussmann FNQR310?

You can click on the BUY or RFQ button to purchase FNQR310 from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part FNQR310?

You can download the FNQR310 datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of FNQR310?

Eaton Bussmann

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