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Carling Technologies MU1B344701A21BC Miniature Hydraulic Circuit Breaker

The CARLING TECHNOLOGIES M-Series circuit breakers offer a cost-effective solution for demanding applications requiring space-saving features and aesthetics. These breakers are designed with a vertically mounted parallel pole configuration, making them suitable for telecommunication equipment fitting in one rack unit. They provide balanced circuit protection and are available in various styling options, including rocker actuator styles and colors, push-to-reset actuators, and illuminated versions. The M-Series circuit breakers are available in 1 & 2 poles or parallel poles, 0.02 to 50 amps, up to 250VAC or 80VDC, and comply with relevant industry standards.

Authorized Distributors
Source:DigiKey
Part No:MU1-B-34-470-1-A21-B-C
Stock:0
Inv Date:06-06-2026
Price: Unit price: $26.197
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Source:DigiKey
Part No:MU1B344701A21BC
Stock:0
Inv Date:06-06-2026
Price: Unit price: $26.197
Buy/RFQ:
Part No:MU1-B-34-470-1-A21-B-C
Stock:0
Inv Date:06-07-2026
Price: Unit price: $27.63
Buy/RFQ:
Part No:MU1-B-34-470-1-A21-B-C
Stock:0
Inv Date:06-06-2026
Price: Unit price: $21.25
Buy/RFQ:
Part No:MU1-B-34-470-1-A21-B-C
Stock:4
Inv Date:06-06-2026
Price: Unit price: $17.963
Buy/RFQ:
Part No:MU1-B-34-470-1-A21-B-C
Stock:4
Inv Date:06-06-2026
Price: Unit price: $17.963
Buy/RFQ:

Carling Technologies MU1B344701A21BC Miniature Hydraulic Circuit Breaker Specifications:

  • Voltage: 125/250 VAC, 80 VDC
  • Current Ratings: 0.100, 0.250, 0.500, 0.750, 1.00 thru 15.0 amps, 18.0, 20.0, 25.0, 30.0
  • Auxiliary Switch Rating: SPDT; 7A 250VAC, 7A (Res) 28VDC, 4A (Ind.) 28VDC, 0.25A 80VDC (Res), 0.1A 125VAC (gold contacts)
  • Insulation Resistance: Minimum 100 Megohms at 500 VDC
  • Dielectric Strength: UL, CSA 1500V, 50/60 Hz
  • Endurance: 10,000 ON-OFF operations @ 6 per minute
  • Trip Free: All M-Series Circuit Breakers will trip on overload
  • Poles: 1 or 2
  • Weight: Approximately 30 grams/pole
  • Operating Temperature: -40° C to +85° C
  • Current Tolerance: ±25% (0.10 - 20.0 amps), ±35% (20.1 - 50.0 amps)

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Frequently Asked Questions

Where can I buy Carling Technologies MU1B344701A21BC?

You can click on the BUY or RFQ button to purchase MU1B344701A21BC from an authorized Carling Technologies distributor.

How do I troubleshoot issues or seek technical support for part MU1B344701A21BC?

You can download the MU1B344701A21BC datasheet or visit the Carling Technologies website for support.

Who is the manufacturer of MU1B344701A21BC?

Carling Technologies

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