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Siemens ED21B025 Molded Case Circuit Breaker

  • 25A
  • 1 Pole
  • Bolt-On
Siemens ED21B025
Molded Case Circuit Breaker
Brand Siemens
SKU ED21B025
Select Item Condition
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  • 25A
  • 1 Pole
  • Bolt-On

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Siemens ED21B025 1 Pole Circuit Breaker

Siemens ED21B025 - 25A 1 Pole Molded Case Circuit Breaker

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$135.43 In Stock

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Description

Providing reliable power distribution, the Siemens ED21B025 is a 1-pole, 25A molded case circuit breaker. It belongs to the Sentron ED2 family, offering fixed long-time and instantaneous trip functions for commercial facilities. This unit mounts into Siemens P1, P2, P3, and Sentron panelboards via a secure bolt-on connection. It includes factory-installed load side lugs. With an interrupting rating of 10kAIC at 120VAC, it safely clears electrical faults and is HACR rated for HVAC applications.

Specifications

Key specifications
Brand Siemens
Part Number ED21B025
Series ED2
Amperage 25A
Poles 1
Mounting Style Bolt-On
Voltage 120VAC, 125VDC
Phase 1
AIC Rating 10kA @ 120VAC, 5kA @ 125VDC
Fit and installation
Frame Type ED
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards, Sentron Panelboards, Switchboards
Wire Gauge 14-10 AWG (Cu), 12-10 AWG (Al)
Max Wire 10 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Non-Interchangeable Trip

Product FAQs

5 answers
Can the Siemens ED21B025 replace an older ITE or Gould 25A breaker?

Yes. Siemens acquired ITE and Gould's electrical divisions, maintaining the original ED frame design. The Siemens ED21B025 is a direct, code-compliant drop-in replacement for obsolete ITE or Gould ED21B025 circuit breakers.

Which panelboards accept the ED21B025 circuit breaker?

As a bolt-on ED frame breaker, it installs directly into the bus of Siemens P1, P2, and P3 panelboards, along with legacy Sentron panelboards and switchboards. It is not compatible with standard plug-on load centers.

How does the ED21B025 connect to the panel and load?

The line side features a bolt-on connection that mounts directly to the panelboard bus. The load side includes factory-installed lugs that accept 14-10 AWG copper or 12-10 AWG aluminum conductors.

Is the ED21B025 circuit breaker HACR rated?

Yes, this 25-amp ED frame breaker is HACR rated, meaning it is tested and approved for use with heating, air conditioning, and refrigeration equipment.

Are the trip settings adjustable on the ED21B025?

No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time and instantaneous trip functions are factory-set and non-interchangeable.

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