EHB34045 - 45A Circuit Breaker

EHB34045 - 45A Circuit Breaker

Keep your electrical system safe and performing at its best with the Square D EHB34045 circuit breaker. Delivering dependable overload and short‑circuit protection, this 45‑amp, 3‑pole unit is built to handle both home and light commercial environments with confidence. Its bolt‑on design makes installation straightforward and secure—saving you effort and time on the job.

Key Features & Benefits

• High fault‑clearing ability – Handles up to 14 kA at 480 VAC and 65 kA at 240 VAC, giving you peace of mind when unexpected power issues occur.
• Straightforward bolt‑on installation – Just line it up and bolt it down for a tight, reliable fit; minimal fuss means less room for error and quicker setup.
• Flexible compatibility – Great for a variety of uses—homes, offices, and light‑duty commercial spaces—and especially handy for electricians managing mixed environments.
• Consistent performance – Designed for long‑term use under normal conditions without letting you down.

Technical Specifications

Feature Description

• Poles 3
• Amperage 45 A
• Interrupting Capacity 14 kA @ 480 VAC; 65 kA @ 240 VAC
• Frame Type EHB‑4
• Wire Size #12–#2 AWG (Aluminum or Copper)
• Temperature Rating 75 °C
• Dimensions 3.00 "W × 3.50 "L × 2.63 "D
• Ship Weight Approximately 3 lb

Material Compliance & Certifications

Crafted with UL‑listed components, this breaker meets established safety standards for residential and commercial use. Built from durable materials and engineered to be reliable under typical load conditions, it also aligns with relevant environmental and safety regulations.

Where It Works Best

This breaker fits and functions best in the NEHB Panelboard only—a streamlined match that ensures optimal safety and compatibility. It’s an ideal solution whether you're upgrading home circuits or outfitting a light‑commercial setup.