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Quad Circuit Breaker · 2 x 15A 1-Pole + 1 x 30A 2-Pole · Type QT Plug-In, Non-CTL · Siemens Q21530CTNC
SKU: Q21530CTNC
Siemens Q21530CTNC is a Type QT plug-in quad circuit breaker with two 15A 1-pole circuits and one 30A 2-pole common-trip circuit in a 2-space format. Commonly used to add a 120/240V branch circuit while retaining two 15A circuits in Siemens loadcentres that accept QT breakers; always confirm panel compatibility and local code before ordering.
Delivered to you by Sep 20 (Within Western Canada)
If shipping issues arise, contact us and we’ll work with the courier to keep your job on track.
What this product is for
This Siemens Type QT quad plug-in circuit breaker is used to provide two 15A single-pole circuits and one 30A double-pole circuit from a compact 2-space breaker footprint. It is intended for Siemens loadcentres that are listed to accept Type QT breakers.
Use for
Use for panel upgrades, renovations, and service work where you need to add a 30A 120/240V circuit and keep two 15A 120V circuits without using additional panel spaces. Typical applications can include dryer, small A/C, or other 30A two-pole branch circuits, depending on the equipment nameplate and code requirements.
Avoid for
Avoid using this breaker in panels not identified for Siemens Type QT breakers, or where a full-size breaker is specifically required. Do not assume tandem or quad breakers are permitted in every loadcentre position; panel labelling and local electrical code take precedence.
Best for
Best for electricians and contractors working on Siemens residential or light commercial distribution panels where space is limited and a compact branch-circuit solution is needed. This format is especially useful when a 2-space breaker must serve both 120V and 240V loads.
Installed in
Installed in compatible Siemens plug-in loadcentres. The breaker occupies 2 panel spaces and uses a half-module style layout, approximately 1 in overall width per pole grouping with 1/2 in (12.7 mm) per pole.
Why this product exists
Quad breakers exist to increase circuit count in approved panels without expanding the loadcentre. This model combines two outer 15A single-pole breakers with one inner 30A double-pole common-trip breaker, helping make use of limited panel space during retrofit or service work.
Compared with similar products
Compared with a standard 2-pole breaker, this quad format adds two extra 15A circuits in the same 2-space footprint. Compared with other Siemens QT quads, the key differentiator here is the 15A/30A/15A arrangement and the Non-CTL suffix. As typical circuit guidance, 15A branch circuits are commonly paired with #14 AWG copper and 30A circuits with #10 AWG copper, but actual conductor sizing depends on temperature rating, termination limits, equipment instructions, and local code.
Actual performance and suitability depend on panel design, conductor type, termination range, load characteristics, and local electrical code.
Specifications
- Manufacturer: Siemens
- Manufacturer part number: Q21530CTNC
- Breaker type: Type QT quad plug-in
- Configuration: 2 x 15A 1-pole outer circuits + 1 x 30A 2-pole inner circuit
- Voltage rating: 120/240 VAC
- Interrupting rating: 10 kAIC
- Trip arrangement: Common trip on centre 2-pole circuit
- Panel space required: 2 spaces
- Module format: 1/2 in per pole (12.7 mm per pole)
- Catalogue designation: Non-CTL
- Typical wire range: #14 to #6 AWG copper, #12 to #6 AWG aluminium for the 15/30 common-trip QT family listing
- BrandSiemens Breakers
- Warranty5 year
- Electrical
- PolesQuad
- Amps2P15A-1P30A
- Physical
- MountingPush on
- Breaker TypeStandard
Minimum Order $20
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Standard Shipping-Free on orders over $500 in Metropolitan Areas / Subject to $750 in Rural Areas.
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998(Updated August 2026)
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.
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