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ED43B125 | Siemens 3-Pole 125A 480V Molded Case Circuit Breaker, Thermal Magnetic
- Regular price
- $1,092.00
- Sale price
- $1,092.00
- Regular price
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Product Description P/N: ED43B125
Description
The Siemens ED43B125 is a 3-pole molded case circuit breaker designed for reliable protection of electrical systems in commercial and industrial applications. Rated at 125 amps with a maximum voltage of 480 VAC, this breaker provides thermal magnetic protection with long-time and instantaneous trip functions. Its bolt-on connection ensures secure installation in Sentron panelboards and SB switchboards.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breakers |
| Part Number | ED43B125 |
| Subcategory | Molded Case Circuit Breakers |
| Series | Sentron |
| Frame Type | ED |
| Amperage Rating | 125 A |
| Voltage Rating | 480 VAC / 250 VDC |
| Frequency Rating | 50/60 Hz |
| Number of Poles | 3 |
| Phase | 3 |
| Interrupting Rating | 18 kAIC @ 480 VAC |
| Trip Type | Thermal Magnetic (Long-Time & Instantaneous) |
| Connection Type | Bolt-On (Load Side Lug) |
| Wire Range | AWG 3–3/0 Cu, AWG 1–2/0 Al |
| Mounting Type | Panelboard / Switchboard |
| Standards | UL, IEC, HACR, RoHS |
| Temperature Rating | 40 °C |
| Dimensions (L x W x H) | 3.92 in x 3 in x 6.35 in |
| Actuator Type | Toggle |
| For Use With | SB Switchboards, Sentron Panelboards |
| Weight | 1.40 kg |
Information About ED43B125
The ED43B125 is part of Siemens’ Sentron ED series molded case circuit breakers, built for dependable circuit protection and compliance with UL and IEC standards. It is designed for three-phase systems, offering a 125 A current rating and 18 kA interrupting capacity at 480 VAC. The unit features a thermal magnetic trip mechanism to safeguard against overloads and short circuits. Its compact frame and bolt-on connection allow easy integration into panelboard and switchboard systems while maintaining high performance and safety.
Key Features:
- Amperage Rating: Provides 125 A current capacity for mid-range power distribution applications.
- Voltage Rating: Supports up to 480 VAC, ensuring compatibility with standard industrial systems.
- Interrupting Capacity: Rated 18 kAIC at 480 VAC for dependable fault interruption.
- Trip Protection: Thermal magnetic trip with long-time and instantaneous functions for overload and short-circuit protection.
- Pole Configuration: 3-pole design supports three-phase systems with balanced load protection.
- Mounting Style: Bolt-on connection type for secure installation in panelboards and switchboards.
- Wire Compatibility: Accepts copper and aluminum conductors, from AWG 3 to 3/0 Cu and AWG 1 to 2/0 Al.
- Certifications: Complies with UL, IEC, HACR, and RoHS standards for safety and environmental requirements.
The ED43B125 delivers the reliability and precision required for safe, efficient circuit protection in demanding electrical distribution environments.
Description
The Siemens ED43B125 is a 3-pole molded case circuit breaker designed for reliable protection of electrical systems in commercial and industrial applications. Rated at 125 amps with a maximum voltage of 480 VAC, this breaker provides thermal magnetic protection with long-time and instantaneous trip functions. Its bolt-on connection ensures secure installation in Sentron panelboards and SB switchboards.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breakers |
| Part Number | ED43B125 |
| Subcategory | Molded Case Circuit Breakers |
| Series | Sentron |
| Frame Type | ED |
| Amperage Rating | 125 A |
| Voltage Rating | 480 VAC / 250 VDC |
| Frequency Rating | 50/60 Hz |
| Number of Poles | 3 |
| Phase | 3 |
| Interrupting Rating | 18 kAIC @ 480 VAC |
| Trip Type | Thermal Magnetic (Long-Time & Instantaneous) |
| Connection Type | Bolt-On (Load Side Lug) |
| Wire Range | AWG 3–3/0 Cu, AWG 1–2/0 Al |
| Mounting Type | Panelboard / Switchboard |
| Standards | UL, IEC, HACR, RoHS |
| Temperature Rating | 40 °C |
| Dimensions (L x W x H) | 3.92 in x 3 in x 6.35 in |
| Actuator Type | Toggle |
| For Use With | SB Switchboards, Sentron Panelboards |
| Weight | 1.40 kg |
Information About ED43B125
The ED43B125 is part of Siemens’ Sentron ED series molded case circuit breakers, built for dependable circuit protection and compliance with UL and IEC standards. It is designed for three-phase systems, offering a 125 A current rating and 18 kA interrupting capacity at 480 VAC. The unit features a thermal magnetic trip mechanism to safeguard against overloads and short circuits. Its compact frame and bolt-on connection allow easy integration into panelboard and switchboard systems while maintaining high performance and safety.
Key Features:
- Amperage Rating: Provides 125 A current capacity for mid-range power distribution applications.
- Voltage Rating: Supports up to 480 VAC, ensuring compatibility with standard industrial systems.
- Interrupting Capacity: Rated 18 kAIC at 480 VAC for dependable fault interruption.
- Trip Protection: Thermal magnetic trip with long-time and instantaneous functions for overload and short-circuit protection.
- Pole Configuration: 3-pole design supports three-phase systems with balanced load protection.
- Mounting Style: Bolt-on connection type for secure installation in panelboards and switchboards.
- Wire Compatibility: Accepts copper and aluminum conductors, from AWG 3 to 3/0 Cu and AWG 1 to 2/0 Al.
- Certifications: Complies with UL, IEC, HACR, and RoHS standards for safety and environmental requirements.
The ED43B125 delivers the reliability and precision required for safe, efficient circuit protection in demanding electrical distribution environments.
