Q1-290VHIN - 90 Amp Circuit Breaker

Q1-290VHIN - 90 Amp Circuit Breaker

Keep your electrical systems safe and dependable with the Q1-290VHIN 90A circuit breaker. Designed for residential and light commercial use, this two-pole, 120/240 V unit delivers strong protection against overloads and short circuits with a 22,000 A interrupting capacity. Its plug-on frame (Q1 type) makes installation into panelboards fast and clean, while taking up just four spaces in your distribution panel. Whether you're replacing an aging breaker or upgrading a load circuit, the Q1-290VHIN gives you peace of mind with consistent performance under demanding conditions.

Key Features & Benefits

• High Interrupting Capacity (22 kAIC): Safeguards your circuits from fault currents, minimizing risk of damage or fire
• Thermal-Magnetic Protection: Combines long-term overload sensitivity with fast response to short circuits
• Compact Footprint: Uses only four panel spaces, making it ideal for panels with limited room
• Plug-On Mounting: Enables tool-free, secure installation to standard bus bars
• Long Service Life: Built from corrosion-resistant materials to deliver years of steady protection

Technical Specifications

• Amperage: 90 A
• Poles: 2 (two-pole)
• Voltage Rating: 120/240 VAC
• Interrupting Rating (AIC): 22,000 A
• Frame Type: Q1
• Dimensions:
  • Width: 1.50 inches
  • Length: 6.38 inches
  • Depth: 2.31 inches
• Weight: ~3.50 lb
• Panel Spaces Required: 4 slots

Material Compliance & Certifications

• Construction: Constructed with premium, corrosion-resistant metals and robust internal components, this circuit breaker meets rigorous industry-standard safety and performance requirements.
• Compliance: It is tested to comply with applicable UL/CSA or ANSI standards (depending on regional regulations), ensuring your installation aligns with electrical code requirements and inspection criteria.

Where It Works Best (Suitability & Use Cases)

• The Q1-290VHIN 90A breaker is ideal for retrofit or maintenance tasks in existing panels, especially where space is tight but you still need high-capacity protection. It fits nicely in residential or light commercial switchboards, particularly in installations feeding heavy loads like HVAC units, large motor circuits, or service feeders. If you're upgrading circuits or replacing older breakers, this unit gives you the safety upgrade without demanding more panel space or complex wiring modifications.