Description
The Square D EGB34025 is a 3-pole thermal-magnetic circuit breaker designed for reliable branch circuit protection in lighting and power distribution applications. Rated at 25 amps and 480Y/277 VAC, this breaker uses a bolt-on mounting design and is engineered for use in NF series panelboards where high interrupting capacity is required.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Electrical Protection |
| Part Number |
EGB34025 |
| Subcategory |
Circuit Breakers |
| Series |
EGB |
| Frame Type |
EGB (E-Frame) |
| Type |
Branch Circuit Breaker |
| Amperage Rating |
25 A |
| Number of Poles |
3 |
| Voltage Rating |
480Y/277 VAC |
| Phase |
Three Phase |
| Interrupting Rating |
35 kAIC at 480Y/277 VAC |
| Protection Type |
Thermal Magnetic |
| Trip Functions |
LI – Long-Time and Instantaneous |
| Mounting Type |
Bolt-On |
| Terminal Type |
Aluminum Lugs |
| Wire Size |
AWG 12–6 Aluminum, AWG 14–6 Copper |
| Standards |
UL, CSA, NOM 117, HACR, HID |
| Temperature Rating |
40 °C |
| For Use With |
Square D NF Panelboards |
| Dimensions (W x D x H) |
2.94 in x 4.05 in x 5.66 in |
| Weight |
2 lb |
Information About EGB34025
The EGB34025 is part of Square D’s EGB series, a compact E-frame breaker line developed for commercial and industrial panelboard systems. It features a rugged molded case construction with bolt-on connections to ensure secure installation and stable electrical performance. This breaker supports three-phase systems and incorporates long-time and instantaneous (LI) thermal-magnetic protection to manage overloads and short-circuit events. Designed for operation at a 40 °C ambient temperature, it is commonly used in lighting and general branch circuit applications within NF panelboard environments.
Key Features:
- Three-Pole Design: Provides coordinated protection for three-phase branch circuits.
- 25 Amp Current Rating: Suitable for controlled lighting and power distribution loads.
- 480Y/277 VAC Voltage Rating: Supports common commercial and industrial electrical systems.
- High Interrupting Capacity: Rated up to 35 kAIC at 480Y/277 VAC for fault protection.
- Thermal-Magnetic Protection: Combines long-time overload and instantaneous short-circuit response.
- Bolt-On Mounting: Ensures secure mechanical and electrical connection to panelboards.
- NF Panelboard Compatibility: Designed specifically for use with Square D NF series panels.
- UL and cULus Approvals: Certified for compliance with recognized safety standards.
The EGB34025 delivers the reliability and precision required for branch circuit protection in commercial and industrial lighting and distribution systems.
