--- product_id: 512080106 title: "Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip" brand: "westinghouse" price: "€ 1.75" currency: EUR in_stock: false reviews_count: 1 url: https://www.desertcart.hr/products/512080106-westinghouse-ul-489-ac-miniature-circuit-breaker-30-amp-single store_origin: HR region: Croatia --- # 30 Amp Power 277V AC Ready 10kA Protection Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip **Brand:** westinghouse **Price:** € 1.75 **Availability:** ❌ Out of Stock ## Summary > ⚙️ Power Up Your Protection! ## Quick Answers - **What is this?** Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip by westinghouse - **How much does it cost?** € 1.75 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/512080106-westinghouse-ul-489-ac-miniature-circuit-breaker-30-amp-single) ## Best For - westinghouse enthusiasts ## Why This Product - Trusted westinghouse brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** UL489 Certified for ultimate peace of mind. - • **Rapid Response:** Interrupts within the first half AC cycle. - • **Quick Installation:** Easily snaps onto 35mm DIN Rails. - • **Reliable Performance:** Designed for both AC and DC circuits. - • **Versatile Applications:** Perfect for HVAC, PLCs, and more. ## Overview The Westinghouse UL 489 AC Miniature Circuit Breaker is a robust 30 Amp, single pole device designed for superior thermal overload and short circuit protection. With a C Curve rating and a 10kA interrupting capacity, it meets stringent UL489 standards, making it ideal for various applications including HVAC systems and motor control circuits. This non-polarized breaker is easy to install on DIN rails and is UL Listed for safety in both the US and Canada. ## Description Product description 1P Miniature Circuit Breaker 2P Miniature Circuit Breaker 3P Miniature Circuit Breaker Available in 0.5A to 60A Available in 1A to 60A Available in 15A to 60A Trip Curve Options C-Curve C-Curve, D-Curve AC Rated Operating Voltage 277 VAC 480Y/277 VAC DC Rated Operating Voltage 60 VDC 125 VDC -- Product Dimensions 108mm x 61mm x 17.5mm 108mm x 61mm x 35mm 108mm x 61mm x 52.5mm Captive Screws The screw is permanently attached to the circuit breaker, ensuring a secure and stable connection every time. Captive Screws The screw is permanently attached to the circuit breaker, ensuring a secure and stable connection every time. Contact Position Indicator Provides a visual indication of the breaker's status, making it easy to identify problems and troubleshoot issues. Contact Position Indicator Provides a visual indication of the breaker's status, making it easy to identify problems and troubleshoot issues. Lockable Handle Prevent unauthorized access or tampering with the circuit breaker. Lockable Handle Prevent unauthorized access or tampering with the circuit breaker. Terminal Shield w/ IP20 Touch Safe Twin Terminals Compliant with international safety standards, ensuring safe and reliable operation. Terminal Shield w/ IP20 Touch Safe Twin Terminals Compliant with international safety standards, ensuring safe and reliable operation. Accessory Connection Compatibility with accessories allows for easy customization and expansion of electrical systems. Accessory Connection Compatibility with accessories allows for easy customization and expansion of electrical systems. Easy Installation The standard DIN rail clip allows for seamless integration into existing electrical systems. Easy Installation The standard DIN rail clip allows for seamless integration into existing electrical systems. Review: Works! - Been in use for over a year now. Zero issues ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BC2P8VDD | | Best Sellers Rank | #844,745 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #710 in Miniature Circuit Breakers | | Brand | Westinghouse | | Brand Name | Westinghouse | | Circuit Breaker Type | Standard | | Current Rating | 30 Amps | | Customer Reviews | 5.0 out of 5 stars 4 Reviews | | Manufacturer | Westinghouse | | Model | 30 Amp C-Curve | | Mounting Type | DIN Rail Mount | | Number Of Poles | 1 | | Number of Poles | 1 | | Part Number | WMBB1C30-1 | | Voltage | 60 Volts | ## Images ![Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip - Image 1](https://m.media-amazon.com/images/I/61XuNScGK2L.jpg) ![Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip - Image 2](https://m.media-amazon.com/images/I/615R9WvmamL.jpg) ![Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip - Image 3](https://m.media-amazon.com/images/I/812jz02NJ4L.jpg) ![Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip - Image 4](https://m.media-amazon.com/images/I/71nN+uEtNqL.jpg) ![Westinghouse UL 489 AC Miniature Circuit Breaker, 30 Amp, Single Pole, C Curve, 10kA, 277V AC, 60V DC, Non-Polarized, UL Listed, DIN Rail Breaker with Thermal Magnetic Trip - Image 5](https://m.media-amazon.com/images/I/81+oIMiAgIL.jpg) ## Questions & Answers **Q: Why does this circuit breaker have extensions on the side? Many others do not have this design.** A: Westinghouse Miniature Circuit Breakers are certified UL-489 which means suitable for branch circuit protection. The extended barriers are necessary for UL-489 approval. Other MCBs without the extended barriers are either NOT UL certified, or only UL approved as supplementary protectors meaning the MCB must be used with a fully rated breaker within the same panel. Applying Westinghouse MCBs will assure that your installation is utilizing fully UL approved breakers. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works! *by R***W on May 24, 2025* Been in use for over a year now. Zero issues --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/512080106-westinghouse-ul-489-ac-miniature-circuit-breaker-30-amp-single](https://www.desertcart.hr/products/512080106-westinghouse-ul-489-ac-miniature-circuit-breaker-30-amp-single) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*