2800857 The Phoenix Contact 2800857 is a 1-position thermomagnetic device circuit breaker with a 0.5A rated current and a maximum voltage rating of 277V AC. It features a fast-blow fuse type and a 1 PDT contact.
Mfr Part #:

2800857

Mfr Name: Phoenix Contact
Phoenix Contact
The Phoenix Contact 2800857 is a 1-position thermomagnetic device circuit breaker with a 0.5A rated current and a maximum voltage rating of 277V AC. It features a fast-blow fuse type and a 1 PDT contact.
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2800857 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Breaker Type
Country of Origin
Current Rating (Amps)
Design
Fuse Type
Height
Insulation Resistance
Mounting Type
Number of Poles
Number of Positions
Voltage Rating

2800857 Description

Short technical summary and product information.

The Phoenix Contact 2800857 is a thermomagnetic device circuit breaker designed for reliable circuit protection. It features a compact design with precise nominal current levels, rated for 0.5A at 240V AC (IEC) or 277V AC (UL).

 

This 1-position breaker utilizes a thermomagnetic tripping method with a fast-blow fuse type and includes a 1 PDT contact. It offers a rated surge voltage of 2.5 kV and a rated insulation voltage of up to 277V AC. The operating temperature range is -30°C to 60°C.

 

Designed for mounting on a base element, this gray device has a width of 12.3mm and a depth of 52mm. Its inflammable class is V0 according to UL 94, and it has a degree of protection of IP30 at the actuation area. The country of origin is Germany.

2800857 Quick Information

Product Type: Circuit Breaker
Series: CB TM1
Canonical Name: Phoenix Contact CB TM1 0.5A F1 Thermomagnetic Device Circuit Breaker
Subcategory: Device Circuit Breaker

2800857 Compliance

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

2800857 Features

  • 0.5A rated current for circuit protection.
  • 277V AC maximum operating voltage.
  • Thermomagnetic tripping method.
  • 1 PDT auxiliary contact included.
  • Fast-blow fuse type (F1).

2800857 Applications

  • Provides reliable circuit protection.
  • Suitable for AC and DC circuits.
  • Compact design for modular systems.
  • Enables remote monitoring capabilities.

2800857 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the rated voltage of the Phoenix Contact 2800857 circuit breaker?

The circuit breaker is rated for 240V AC (IEC 60934), 277V AC (UL 1077), and 50V DC.

What are the dimensions of the 2800857 circuit breaker?

The device measures 45mm x 12.3mm x 52mm. The complete module including base is 90mm x 12.3mm x 77.3mm.

What is the operating temperature range of the 2800857?

-30°C to 60°C.

What is the tripping characteristic of the 2800857?

F1 fast-blow (thermomagnetic).

What is the short-circuit switching capacity of the 2800857?

300A at 240V AC and 600A at 50V DC.

What is the rated current of the 2800857?

0.5A.

What is the mounting type for the 2800857?

On base element.

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