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Carling Technologies MU1B346151A21BC Miniature Hydraulic Circuit Breaker

The CARLING TECHNOLOGIES M-Series circuit breaker offers a cost-effective solution for demanding applications requiring space-saving features and aesthetics. Its vertically mounted parallel pole configuration is UL489A listed up to 50 amps, making it suitable for telecommunication equipment. The circuit breaker provides design flexibility with choices of rocker actuator styles, colors, and imprinting, and features a Rockerguard bezel to prevent inadvertent actuation. It is available in 1 & 2 poles or parallel poles, 0.02 to 50 amps, up to 250VAC or 80VDC.

Authorized Distributors
Source:DigiKey
Part No:MU1-B-34-615-1-A21-B-C
Stock:0
Inv Date:06-06-2026
Price: Unit price: $26.197
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Source:DigiKey
Part No:MU1B346151A21BC
Stock:0
Inv Date:06-06-2026
Price: Unit price: $26.197
Buy/RFQ:
Part No:MU1-B-34-615-1-A21-B-C
Stock:0
Inv Date:06-07-2026
Price: Unit price: $34.46
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Part No:MU1-B-34-615-1-A21-B-C
Stock:0
Inv Date:06-06-2026
Price: Unit price: $21.25
Buy/RFQ:
Part No:MU1-B-34-615-1-A21-B-C
Stock:0
Inv Date:06-06-2026
Price: Unit price: $20.68
Buy/RFQ:
Part No:MU1-B-34-615-1-A21-B-C
Stock:0
Inv Date:06-06-2026
Price: Unit price: $20.68
Buy/RFQ:

Carling Technologies MU1B346151A21BC 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
  • Tolerance: ±25% (0.10 - 20.0 amps), ±35% (20.1 - 50.0 amps)

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Frequently Asked Questions

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You can click on the BUY or RFQ button to purchase MU1B346151A21BC from an authorized Carling Technologies distributor.

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You can download the MU1B346151A21BC datasheet or visit the Carling Technologies website for support.

Who is the manufacturer of MU1B346151A21BC?

Carling Technologies

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