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BT1-B4-14-625-122-D Littelfuse BT1-B4-14-625-122-D is a 25A, 1-pole magnetic hydraulic delay circuit breaker rated at 277V. It features a lever actuator and panel mount design.
Mfr Part #:

BT1-B4-14-625-122-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse BT1-B4-14-625-122-D is a 25A, 1-pole magnetic hydraulic delay circuit breaker rated at 277V. It features a lever actuator and panel mount design.
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BT1-B4-14-625-122-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
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BT1-B4-14-625-122-D Description

Short technical summary and product information.

This Littelfuse BT1-B4-14-625-122-D is a single-pole magnetic hydraulic delay circuit breaker rated at 25A and 277V. It uses a lever actuator and is designed for panel mount installation. The hydraulic delay mechanism provides time-delayed overcurrent protection.

 

With approvals from CCC, CSA, UL, and VDE, this breaker is suitable for various applications. The magnetic (hydraulic delay) type offers reliable protection with minimal nuisance tripping. It is unilluminated and has a 1-pole configuration.

 

The panel mount mounting type allows for easy integration into enclosures. The breaker type is magnetic (hydraulic delay), providing precise current sensing and adjustable time delay characteristics.

BT1-B4-14-625-122-D Quick Information

Product Type: Circuit Breaker
Series: BT1
Canonical Name: Magnetic (Hydraulic Delay) Circuit Breaker, 25A, 277V, 1 Pole, Panel Mount
Subcategory: Magnetic Circuit Breaker

BT1-B4-14-625-122-D Compliance

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

BT1-B4-14-625-122-D Features

  • Rated 25A continuous current at 277V.
  • Single-pole magnetic hydraulic delay design.
  • Lever actuator for manual operation.
  • Panel mount installation style.
  • Approved by CCC, CSA, UL, VDE.

BT1-B4-14-625-122-D Applications

  • Branch circuit protection in industrial panels.
  • Lighting circuit protection for 277V systems.
  • Motor protection with hydraulic delay characteristics.
  • Power distribution in commercial HVAC equipment.
  • Overcurrent protection for control transformers.

BT1-B4-14-625-122-D FAQs

6 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the BT1-B4-14-625-122-D?

277V.

What current rating does this circuit breaker have?

25A.

What type of breaker is the BT1-B4-14-625-122-D?

Magnetic (Hydraulic Delay).

How many poles does this circuit breaker have?

1 pole.

What actuator type is used on this breaker?

Lever.

What agency approvals does this circuit breaker have?

CCC, CSA, UL, VDE.

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