Siemens 5SJ4120-6HG40 Miniature Circuit Breaker 1-Pole, 20A, 240V, 14kA, UL 489 Rated Original Brand New
$41.71
High-performance, single-pole miniature circuit breaker (MCB) designed for superior branch circuit protection. Rated at 20A and 240V, it features a 14kA interrupting capacity and complies strictly with UL 489 standards, ensuring safety and reliability in demanding electrical environments.
Availability: In stock
Overview
The Siemens 5SJ4120-6HG40 is part of the renowned Sentron series, specifically engineered for the North American market. This B-characteristic MCB provides essential protection against overloads and short circuits. With a compact mounting depth of 70 mm and “equal polarity” design, it is an ideal choice for industrial control panels and commercial electrical distribution where UL 489 compliance is mandatory.
Key Benefit
-
Certified Safety: Fully compliant with UL 489 and CSA C22.2, making it suitable for branch circuit protection in the US and Canada.
-
High Breaking Capacity: Handles up to 14kA at 240V, protecting sensitive equipment from high-energy faults.
-
Space-Efficient: The 70 mm design allows for seamless integration into standard enclosures and DIN rail setups.
-
Global Reliability: Siemens engineering ensures long-term operational stability and reduced downtime.
Function
-
Overcurrent Protection: Prevents thermal damage to wiring by tripping during sustained overloads.
-
Short-Circuit Protection: Instantaneous magnetic tripping (B-characteristic) to mitigate the risks of electrical faults.
-
Circuit Isolation: Provides a reliable means of manually disconnecting electrical circuits for maintenance.
Technical Specification
-
Brand: Siemens
-
Product Number: 5SJ4120-6HG40
-
Type: Miniature Circuit Breaker (MCB)
-
Rated Voltage: 240 V
-
Breaking Capacity: 14 kA
-
Poles: 1-Pole
-
Tripping Curve: B-Curve
-
Rated Current: 20 A
-
Depth (D): 70 mm
-
Standard: UL 489
-
Polarity: Equal polarity
Visit 5SJ4120-6HG40 for more detail info
For more our products visit turll
Download
| Weight | 0.163 kg |
|---|---|
| Dimensions | 21.00 × 93.00 × 83.00 mm |
| Brand | SIEMENS |
| product brand name | SENTRON |
| product designation | Miniature circuit breakers |
| design of the product | Miniature circuit-breaker 5SJ4 |
| number of poles | 1 |
| tripping characteristic class | B |
| mechanical service life (switching cycles) / typical | 10 000 |
| installation environment regarding EMC | Suitable for environment B (immunity to interference not applicable) |
| reference code / acc. to DIN 40719 extended according to IEC 204-2 / acc. to IEC 750 | F |
| overvoltage category | 3 |
| degree of pollution | 3 |
| type of voltage / of the operating voltage | AC/DC |
| insulation voltage (Ui) / at AC / rated value | 440 V |
| supply voltage / at AC / rated value | 400 V |
| operating voltage | – |
| ● at AC / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum | 120 V |
| ● at DC / rated value / maximum | 60 V |
| ● at DC / single channel / acc. to UL 489 and CSA C22.2 No. 5-02 / maximum | 60 V |
| protection class IP | IP20, with connected conductors, IP 40 in the handle range |
| switching capacity current | – |
| ● acc. to EN 60898 / rated value | 10 kA |
| ● acc. to IEC 60947-2 / rated value | 15 kA |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole | 2.7 W |
| operational current | – |
| ● at 30 °C / rated value | 20 A |
| ● at 40 °C / rated value | 20 A |
| ● at 45 °C / rated value | 19.4 A |
| ● at 50 °C / rated value | 18.8 A |
| ● at 55 °C / rated value | 18.1 A |
| ● at 60 °C / rated value | 17.6 A |
| ● at AC / rated value | 20 A |
| type of voltage supply / at AC / acc. to UL 489 and CSA C22.2 No. 5-02 | 240/120 |
| suitability for operation | Mechanical engineering / industry |
| product component / neutral conductor switching | No |
| product feature / touch protection | Yes |
| product component | – |
| ● tunnel terminals top | No |
| ● tunnel terminals bottom | No |
| ● combined terminal top | Yes |
| ● combined terminal bottom | Yes |
| product feature | – |
| ● halogen-free | Yes |
| ● sealable | Yes |
| ● silicon-free | Yes |
| product extension / installable / supplementary devices | Yes |
| product function / note | Terminal tightening torque for Cu, 60/75°C; 3.5Nm/31lb.in |
| breaking capacity short-circuit current (Icn) / at AC / acc. to UL 1077 and CSA C22.2 No.235 | 14 kA |
| connectable conductor cross-section / finely stranded / with core end processing | – |
| tightening torque / with screw-type terminals / maximum | 3.5 N·m |
| position / of power supply cord | Any |
| installation depth | 70 mm |
| number of modular width units | 1 |
| fastening method | on standard mounting rail |
| mounting position | any |
| vibration resistance | 50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec) |
| ambient temperature / during operation | – |
| ambient temperature / during storage | – |
| ● minimum | -40 °C |
| ● maximum | 75 °C |
| reference code | – |
| ● acc. to DIN EN 61346-2 | F |
| ● acc. to IEC 81346-2 | F |
| Test Certificates | other |
| Special Test Certificate | Miscellaneous |
You must be logged in to post a review.
Reviews
There are no reviews yet.