BT1-B2-52-610-221-D 1-pole magnetic hydraulic delay circuit breaker from Littelfuse rated for 10A at 277V with lever actuator and panel mount.
Mfr Part #:

BT1-B2-52-610-221-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
1-pole magnetic hydraulic delay circuit breaker from Littelfuse rated for 10A at 277V with lever actuator and panel mount.
Stock on Request

BT1-B2-52-610-221-D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
Voltage Rating

BT1-B2-52-610-221-D Description

Short technical summary and product information.

The Littelfuse BT1-B2-52-610-221-D is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection in a variety of applications. It is rated for 10A continuous current and 277V AC operation, making it suitable for branch circuit protection in commercial and industrial settings.

 

The breaker uses a magnetic hydraulic delay mechanism, which provides precise tripping characteristics over a wide temperature range. The lever actuator allows for manual reset and on/off control. This component is panel-mounted, making it straightforward to integrate into control panels and distribution boards.

 

Approvals include CCC, CSA, UL, and VDE, indicating compliance with international safety standards. The unilluminated actuator is standard for this series. With a 1-pole configuration, it is ideal for single-phase circuits or individual branch protection.

BT1-B2-52-610-221-D Quick Information

Product Type: Circuit Breaker
Canonical Name: BT1-B2-52-610-221-D 1-Pole Magnetic Hydraulic Delay Circuit Breaker, 10A, 277V
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

BT1-B2-52-610-221-D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BT1-B2-52-610-221-D Features

  • Rated for 10A continuous current at 277V.
  • Single-pole magnetic hydraulic delay design.
  • Lever actuator for manual reset.
  • Panel mount for easy installation.
  • Approved by UL, CSA, VDE, and CCC.

BT1-B2-52-610-221-D Applications

  • Overcurrent protection for lighting circuits
  • Motor protection in industrial control panels
  • Branch circuit protection in distribution panels
  • Panel board protection for commercial buildings

BT1-B2-52-610-221-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the BT1-B2-52-610-221-D circuit breaker?

The voltage rating is 277V.

What is the current rating of this Littelfuse circuit breaker?

The current rating is 10A.

What type of circuit breaker is the BT1-B2-52-610-221-D?

It is a magnetic (hydraulic delay) circuit breaker.

How many poles does this circuit breaker have?

It has 1 pole.

What actuator type is used on this part?

It uses a lever actuator.

What are the approval agencies for this circuit breaker?

It is approved by CCC, CSA, UL, and VDE.

What is the mounting type for the BT1-B2-52-610-221-D?

It is panel mounted.

BT1-B2-52-610-221-D Alternate Parts

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The Littelfuse Inc. BA1-B0-12-610-522-D is a 1-pole magnetic hydraulic delay circuit breaker. It features a 10A current rating and a 277V voltage rating.
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BT1-B2-52-610-121-D
BT1-B2-52-610-121-D
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The Littelfuse Inc. BT1-B2-52-610-121-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 10A current rating and a 277V voltage rating.
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BA1-B0-12-610-111-D
BA1-B0-12-610-111-D
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The Littelfuse Inc. BA1-B0-12-610-111-D is a 1-pole, panel mount circuit breaker. It features a magnetic hydraulic delay mechanism and a 10A current rating.
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BA1-B0-14-610-222-D
BA1-B0-14-610-222-D
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The Littelfuse Inc. BA1-B0-14-610-222-D is a 1-pole circuit breaker with a 10A current rating and 277V voltage rating. It features a magnetic hydraulic delay and lever actuator.
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