Allen-Bradley 1489-M3D300 1489 M Miniature Circuit Breaker, Standard configuration, AC
$819.99
Out of stock
Request QuoteAllen-Bradley 1489-M3D300 — The 1489-M3D300 is an Allen-Bradley 1489-M thermal-magnetic miniature circuit breaker — 3-pole, Trip Curve D (highly inductive, 10…20× In magnetic trip), rated 30 A continuous at 480Y/277V AC (UL/CSA) and 400V AC (IEC/EN). Suitable for branch-circuit and supplementary protection per UL 489 and IEC/EN 60947-2; DIN-rail mounted with dual terminals, current-limiting construction, and 15 kA (IEC) / 10 kA (UL/CSA) interrupting capacity.
| Trip Curve | D (Highly Inductive, 10…20 × In magnetic) |
| Poles | 3-pole |
| Rated Current (In) | 30 A |
| Max Voltage (UL/CSA, 3-pole) | 480Y/277V AC |
| Max Voltage (IEC/EN, 3-pole) | 400V AC |
| Interrupting Capacity | 10 kA (UL 489) / 15 kA (IEC 60947-2) |
| Dimensions (H × D × W) | 111 × 75 × 52.5 mm (4.37 × 3.0 × 2.07 in.) |
Description
Allen-Bradley 1489-M3D300
The 1489-M3D300 is an Allen-Bradley 1489-M thermal-magnetic miniature circuit breaker — 3-pole, Trip Curve D (highly inductive, 10…20× In magnetic trip), rated 30 A continuous at 480Y/277V AC (UL/CSA) and 400V AC (IEC/EN). Suitable for branch-circuit and supplementary protection per UL 489 and IEC/EN 60947-2; DIN-rail mounted with dual terminals, current-limiting construction, and 15 kA (IEC) / 10 kA (UL/CSA) interrupting capacity.
| Product Overview | |
|---|---|
| Catalog Number | 1489-M3D300 |
| Product Family | Bulletin 1489-M Thermal-Magnetic Miniature Circuit Breaker |
| Poles | 3 |
| Trip Curve | D — Highly Inductive (magnetic trip at 10…20 × In) |
| Rated Current (In) | 30 A |
| Standards | UL 489, CSA C22.2 No. 5, IEC/EN 60947-2 |
| Mounting | DIN Rail (EN 60715, 35 mm) with fast clip |
| Mounting Position | Any |
| Housing | Insulation group II, RAL 7035 |
| Indicator Window | Red ON / Green OFF |
| Protection Degree | IP20 (IP40 in enclosure with cover) |
| Electrical Ratings (UL/CSA) | |
|---|---|
| Standards | UL 489, CSA C22.2 No. 5 |
| Max Voltage (3-pole, D curve, 0.5…35 A) | 480Y/277V AC |
| Max Voltage (3-pole, D curve, 40…63 A) | 240V AC |
| Rated Interrupting Capacity (UL 489) | 10 kA |
| SWD (Switch Duty) Rating | Yes for 0.5…20 A models |
| HACR Rating | Rated as Heating, A/C, Refrigeration circuit breaker per UL 489 §6.7 |
| Current-Limiting Rating | Rated per UL 489 §8.6 |
| Reference Temperature | 40 °C (104 °F) |
| Electrical Endurance (UL/CSA) | 6,000 operations (AC and DC) — cycle 1 s ON / 9 s OFF |
| Electrical Ratings (IEC/EN 60947-2) | |
|---|---|
| Rated Operational Voltage (Ue, 2-/3-pole) | 400V AC |
| Rated Operational Voltage (Ue, 1-pole) | 230V AC |
| Highest Utilization Voltage (Umax, 2-/3-pole AC) | 440V AC |
| Highest Utilization Voltage (Umax, 2-pole DC) | 96V DC |
| Min Operating Voltage | 12V AC / 12V DC |
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | 15 kA |
| Rated Service SCB Capacity (Ics) ≤40 A | 11.25 kA |
| Rated Service SCB Capacity (Ics) > 40 A | 7.5 kA |
| Rated Impulse Withstand Voltage (Uimp, 1.2/50 µs) | 4 kV (test voltage 6.2 kV sea level, 5 kV at 2,000 m) |
| Dielectric Test Voltage | 2 kV (50/60 Hz, 1 min) |
| Reference Temperature | 30 °C (86 °F) |
| Electrical Endurance (IEC, In < 30 A) | 20,000 operations (1 cycle: 2 s ON, 13 s OFF) |
| Electrical Endurance (IEC, In ≥ 30 A) | 10,000 operations AC (2 s ON, 28 s OFF); 1,000 operations DC |
| Rated Insulation Voltage (Ui, IEC/EN 60664-1) | 250V AC (phase-to-ground), 440V AC (phase-to-phase) |
| Overvoltage Category | III |
| Pollution Degree | 3 |
| Short-Circuit Current Limiting (Trip Curve D) | |
|---|---|
| ≤ 35 A at 480Y/277V | 10,000 A RMS, PF 0.45…0.5 — I Peak: 9.5 kA, I²t: 80.0 kA²·s |
| > 35 A at 240V | 10,000 A RMS, PF 0.45…0.5 — I Peak: 8.0 kA, I²t: 110.0 kA²·s |
| Let-Through Behavior | Interrupts short-circuit current within the first half cycle of the fault |
| Tripping Characteristics | |
|---|---|
| Standard Tripping Characteristic | Bulletin 1489-M available in Type C and Type D |
| D Curve Magnetic Trip (AC) | 10…20 × In |
| D Curve Magnetic Trip (DC) | 15…30 × In (1.5 × AC value) |
| Thermal Trip (AC and DC) | Same times apply; thermal portion reflects overload protection |
| Non-Tripping Limit (I1) | 1.05 × In |
| Tripping Limit (I2) | 1.3 × In |
| Reference Ambient for Curves | 30 °C (86 °F) |
| Power Loss (30 A, per pole) | 3.5 W |
| Mechanical & Installation | |
|---|---|
| Dimensions (H × D × W) | 111 × 75 × 52.5 mm (4.37 × 3.0 × 2.07 in.) |
| Pole Weight | 125 g (4.4 oz) per pole — 3-pole ≈ 375 g (0.83 lb) |
| Terminal Type | Dual terminal (front + back slot) |
| Wire Size — Solid/Stranded (front/back slot) | 35 / 35 mm² (18…4 / 18…10 AWG) |
| Wire Size — Flexible (front/back slot) | 25 / 10 mm² |
| Multi-wire Rating (UL/CSA) | 1 wire: 18…4 AWG | 2–4 wires: 18…10 AWG |
| Tightening Torque (IEC) | 2.8 N·m |
| Tightening Torque (UL/CSA) | AWG 18…16: 13.3 lb·in | AWG 14…10: 17.7 lb·in | AWG 8…4: 39.8 lb·in |
| Screwdriver | No. 2 Pozidriv |
| Bus Bar Cross-section (back terminal slot) | 10 mm² |
| Mechanical Endurance | 20,000 operations |
| Environmental | |
|---|---|
| Ambient Operating Temperature | -25…+55 °C (-13…+131 °F), non-condensing |
| Storage Temperature | -40…+70 °C (-40…+158 °F) |
| Damp Heat Endurance (IEC/EN 60068-2-30) | 28 cycles at 55 °C / 90…96% RH and 25 °C / 95…100% RH |
| Shock Resistance (IEC/EN 60068-2-27) | 25 g half sine, 2 shocks per axis, 13 ms |
| Vibration Resistance (IEC/EN 60068-2-6) | 5 g — 20 cycles at 5…150…5 Hz with load 0.8 × In |
| Application Note (Below 0 °C) | Non-condensing atmosphere only; not certified for ice presence |
| Zero-Stack Derating (side-by-side mounting) | |
|---|---|
| 1 Device (standalone) | 1.0 × In (no derating) |
| 2 or 3 Adjacent Devices | 0.9 × In |
| 4 or 5 Adjacent Devices | 0.8 × In |
| ≥ 6 Adjacent Devices | 0.75 × In |
| Available Accessories | |
|---|---|
| Shunt Trip (110…415V AC / 110…250V DC) | Catalog 1489-AMST1 (right mount) |
| Shunt Trip (12…60V AC/DC) | Catalog 1489-AMST2 (right mount) |
| Signal Contact (1 C.O.) | Catalog 1489-AMRS3 — operates only when breaker trips; 1 A @ 480V AC / 2 A @ 60V DC |
| Auxiliary Contact (1 C.O.) | Catalog 1489-AMRA3 — up to 2 wires per terminal; 1 A @ 480V AC / 2 A @ 60V DC |
| Lock-out Attachment (1-pole MCB) | Catalog 189-ALOA1 |
| Lock-out Attachment (multi-pole MCB) | Catalog 189-ALOA2 |
| Combination Limit | Max 2 auxiliary contacts OR 1 signal + 1 aux contact, with/without 1 shunt trip |
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 1489-M3D300
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 1489-M3D300 units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Alternative Part Numbers & Names for 1489-M3D300
The 1489-M3D300 by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 1489M3D300
- Allen Bradley 1489-M3D300
- Allen-Bradley 1489-M3D300
- 1489 M3D300
- 1489/M3D300
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 0.83 lbs |
|---|---|
| Dimensions | 4.4 × 2.1 × 3.0 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 885630618319 |
| mpn | 1489-M3D300 |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 1489-M3D300
| Shipping Dimensions | |
|---|---|
| Weight | 0.83 lbs |
| Length | 4.4 in |
| Width | 2.1 in |
| Height | 3.0 in |
| Box Dimensions (L×W×H) | 4.4 × 2.1 × 3.0 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Where can I find the technical datasheet for the 1489-M3D300?
The official manufacturer datasheet is available for download on the 1489-M3D300 product page at PLC Exchange. Look for the Tech Data PDF link in the product description.
Does the 1489-M3D300 include a warranty?
Yes. Every 1489-M3D300 sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 1489-M3D300?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 1489-M3D300 ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 1489-M3D300?
The 1489-M3D300 is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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