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Siemens Q330 Miniature Circuit Breaker

  • 30A
  • 3 Pole
  • Plug-On
Siemens Q330
Miniature Circuit Breaker
Brand Siemens
SKU Q330
Select Item Condition
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  • 30A
  • 3 Pole
  • Plug-On

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Siemens Q330 - 30A 3 Pole Miniature Circuit Breaker

Siemens Q330 - 30A 3 Pole Miniature Circuit Breaker

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$63.95 In Stock

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Description

Designed for everyday commercial and industrial branch circuit protection, this 30-amp QP series device offers reliable thermal-magnetic tripping. The three-pole configuration ensures all phases disconnect simultaneously during an overload or short circuit event. It easily installs into standard Siemens panelboards and load centers, while also acting as an exact replacement for legacy Murray MP330 units.

Specifications

Key specifications
Brand Siemens
Part Number Q330
Series QP
Amperage 30A
Poles 3
Mounting Style Plug-On
Voltage 240VAC
Phase 3
AIC Rating 10kA @ 240VAC
Fit and installation
Frame Type Q
Terminal Type Lugs
For Use With Siemens Load Centers, Siemens Panelboards
Wire Gauge 14-6 AWG (Cu), 12-6 AWG (Al)
Max Wire 6 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Padlock Attachment
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Common Trip

Product FAQs

6 answers
Does this breaker replace older ITE 30A 3-pole breakers?

Yes, the Siemens Q330 is the direct replacement for obsolete ITE EQ-P 3-pole 30A breakers. It fits the same panel spaces and utilizes the identical plug-on connection.

Which load centers accept the Siemens Q330 breaker?

This Type QP breaker is compatible with modern Siemens PL, ES, and EQ series load centers, as well as legacy ITE panelboards that accept standard 1-inch plug-on breakers.

How much panel space is required to install this breaker?

Because it is a 3-pole breaker with a standard 1-inch width per pole, it requires three adjacent spaces (3 inches total) on the panel bus.

Is the Q330 rated for HVAC equipment?

Yes, this thermal-magnetic breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment that requires overcurrent protection.

What if my electrical system requires a higher interrupting rating?

If your application requires a 22kAIC rating instead of the standard 10kAIC, you will need the Siemens Q330H (Type QPH). It is a direct physical match that provides higher fault current protection.

Can I use this plug-on breaker in a bolt-on panelboard?

No, the Q330 features a plug-in connection designed for standard load centers. For a bolt-on application in Siemens commercial panels, you will need a Type BQ equivalent.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
1 review
  • IG
    Igor G.
    Flag of United States
    I recommend this product
    Rated 5 out of 5 stars
    7/29/18
    Placed my order, got the

    Placed my order, got the item fast, moved on with my project. What else would you want. Perfect service.