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HomeProductsCircuit ProtectionCircuit Breakers4435.05
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4435.05 - SCHURTER Inc.

Manufacturer Part Number
4435.05
Manufacturer
Schurter
Allelco Part Number
98D-4435.05
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
28,465 pcs available, New & Original
Parts Description
CIR BRKR THRM 1.5A 240VAC 32VDC
Package
Bulk
Data sheet
4435.05.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 28465
  • Unit Price: $11.803
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $11.803 $11.80
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

4435.05 Tech Specifications
SCHURTER Inc. - 4435.05 technical specifications, attributes, parameters and parts with similar specifications to SCHURTER Inc. - 4435.05

Product Attribute Attribute Value
Manufacturer Schurter
Voltage Rating - DC 32 V
Voltage Rating - AC 240 V
Series TA35
Package Bulk
Number of Poles 1
Mounting Type Panel Mount
Product Attribute Attribute Value
Illumination Voltage (Nominal) 240V
Illumination Red
Current Rating (Amps) 1.5A
Breaker Type Thermal
Approval Agency CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
Actuator Type Rocker

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) Vendor Undefined
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8536.20.0020

Frequently Asked Questions(FAQ)

How does the 4435.05 thermal circuit breaker perform under continuous load conditions compared to intermittent switching, and what margin should be applied for long-term reliability in industrial control panels?
The 4435.05 is rated for continuous operation at 1.5A with a maximum AC voltage of 240V and DC voltage of 32V, but its thermal trip mechanism responds gradually to sustained overcurrent. For designs requiring high reliability, derating by approximately 10–15% below the nominal 1.5A rating is advisable when operating near full capacity, especially in environments with elevated ambient temperatures or poor heat dissipation. This accounts for thermal drift and ensures consistent response times during fault events.
In what scenarios would the 4435.05 outperform a magnetic-hydraulic circuit breaker, and vice versa, particularly regarding response time and protection granularity?
The 4435.05, being purely thermal, offers slower response to short-circuit faults but provides more precise overload protection due to its reliance on bimetallic strip heating. It excels in applications where nuisance tripping must be minimized, such as motor start-up surges or variable loads. In contrast, magnetic-hydraulic breakers respond faster to high-current transients but may not distinguish between brief overloads and true faults as effectively. Thus, the 4435.05 is preferable for steady-state protection, while magnetic types suit environments with frequent transient spikes.
What are the key differences between the 4435.05 and similar 2-pole thermal breakers like the 4436.05 when selecting for single-phase 230V European installations?
The 4435.05 is a single-pole (1P) thermal breaker rated for 1.5A at 240V AC, designed for line-neutral or phase-to-ground protection. Unlike dual-pole models such as the 4436.05, it does not simultaneously disconnect both live conductors. For 230V single-phase systems where only one conductor requires disconnection—such as in lighting circuits or auxiliary power feeds—the 4435.05 suffices and reduces component count and panel space. However, in safety-critical applications per IEC 61008/61009, a 2P breaker may be mandated for double isolation.
How does the panel mounting configuration of the 4435.05 affect installation spacing and heat transfer in densely populated control cabinets?
With a rocker actuator and standard DIN rail compatibility via the TA35 series footprint, the 4435.05 requires minimal front clearance for access but generates localized heat during operation. In high-density layouts, maintaining at least 5 mm between adjacent units prevents thermal coupling that could accelerate aging of nearby components or cause premature tripping due to elevated ambient temperature. Proper airflow and mounting orientation should consider the thermal mass of the bimetallic element to avoid false triggering.
Can the 4435.05 be used in DC applications above 32V, and what failure modes might occur if operated beyond its specified DC voltage rating?
No, the 4435.05 is explicitly rated for DC up to 32V; exceeding this limit risks arcing across contacts during disconnection, leading to contact erosion, weld bonding, or insulation degradation. Although thermal mechanisms respond similarly in AC and DC, arc energy in higher-voltage DC circuits exceeds the breaker’s interruption capability. For DC loads above 32V, alternative protection solutions with appropriate arc-quenching design must be selected instead of relying solely on the 4435.05.
What is the typical mechanical life expectancy of the 4435.05 under normal operating conditions, and how does actuation frequency impact longevity?
While exact mechanical endurance isn’t published, SCHURTER typically specifies tens of thousands of operations for TA35-series thermal breakers under standard conditions. Frequent manual resetting or cycling through fault states accelerates contact wear and actuator fatigue. In automated systems, remote-controlled reset mechanisms reduce human interaction and preserve operational life. Designers should minimize unnecessary manual interventions to extend service intervals beyond initial warranty periods.
Does the red illumination feature of the 4435.05 require an external power source, and how does it behave when the main supply is interrupted?
The 4435.05 includes built-in illumination activated by the presence of 240V AC, meaning the LED lights up only when power is applied. There is no battery backup or capacitor-based retention—once the circuit is de-energized, the indicator turns off immediately. This self-powered design simplifies wiring but means status indication ceases during outages, which may affect fault diagnosis unless supplemented with additional signaling devices.
What environmental qualifications make the 4435.05 suitable for use in automotive or marine applications despite lacking explicit IP ratings?
Although the 4435.05 carries approvals including UL1077, EN 60934, and CSA C22.2 No 235, these certifications focus on electrical performance rather than ingress protection. Its robustness stems from solid-state-free thermal operation and robust plastic housing, making it viable in dry, indoor environments compliant with IEC 60934 standards. However, exposure to moisture, salt spray, or vibration without enclosure protection limits suitability for harsh outdoor or mobile platforms unless housed in conformally sealed panels.
How does the 4435.05 compare thermally to fast-blow fuses in protecting resistive loads with slow thermal buildup?
The 4435.05 provides superior coordination with slow-changing loads such as heaters or incandescent lighting, where its time-delay thermal characteristic avoids nuisance trips during startup. Fast-blow fuses, conversely, interrupt instantaneously regardless of current duration, potentially failing to protect against gradual overloads. However, for surge-heavy or short-circuit-prone circuits, fuses offer faster fault clearing. Therefore, the 4435.05 is better matched to predictable, low-surge loads where resetability and visibility outweigh speed.
Are there any known limitations in using the 4435.05 for inductive loads like small motors, and how should inrush currents be managed?
Yes, inductive loads such as motors exhibit high inrush currents (up to 6–8× rated current) during startup, which may trigger the 4435.05 prematurely despite being within safe operating parameters. To mitigate this, either select a higher-rated breaker (e.g., 2A model) or implement soft-start circuitry or timed delays in the control logic. Alternatively, combine the 4435.05 with a current-limiting fuse upstream for added protection during transient events.
What is the recommended storage condition for unused 4435.05 units prior to integration, given its MSL status is vendor undefined?
Since Moisture Sensitivity Level (MSL) is unspecified, standard industrial handling applies: store in original packaging in a cool, dry environment (<85% RH, <40°C) to prevent condensation-induced corrosion during PCB assembly. Avoid prolonged exposure to humidity before soldering or mounting, and inspect terminals for oxidation if stored beyond six months. While RoHS3 compliance ensures material stability, environmental conditioning remains critical for long-term reliability.
How does the 4435.05 comply with international safety standards, and which agencies recognize its approval for use in North America versus Europe?
The 4435.05 holds UL1077 recognition in the U.S., UL recognized component status, and CSA certification under C22.2 No 235 for supplementary protection. In Europe, it meets EN 60934 requirements and bears CE marking implications. Additionally, it complies with IEC 60934 for global harmonization. These approvals allow use in secondary protection roles per NEC Article 409 and IEC 61439, provided proper coordination with primary overcurrent devices exists.
Can the 4435.05 be reset programmatically in a smart control system, and what considerations apply for contact wear and arc suppression?
Manual reset is standard, but some industrial implementations use auxiliary contacts or relay-driven mechanisms to enable remote reset. However, each actuation introduces contact bounce and potential arcing, especially at 240V AC. If automated reset is required, incorporate snubber circuits or opt for breakers with electronic trip units. Otherwise, frequent resets degrade contact integrity and reduce lifespan, offsetting convenience gains.
What is the significance of the TA35 series designation for the 4435.05, and how does it influence interchangeability with other SCHURTER thermal breakers?
The TA35 series defines a standardized form factor and mounting interface, enabling drop-in replacement across compatible models within SCHURTER’s lineup. This allows designers to maintain consistency in panel layout and procurement logistics. However, electrical ratings and response characteristics vary by specific part number; thus, substituting another TA35 device requires verifying current/voltage limits and trip curves to ensure functional equivalence—especially when upgrading from 1A to 1.5A variants like the 4435.05.
How does the 4435.05 handle harmonic-rich environments common in switch-mode power supplies, and what mitigation strategies exist?
Thermal breakers like the 4435.05 react primarily to RMS current magnitude, so they generally tolerate harmonics well since total effective heating depends on integral of I²dt. However, peak currents from SMPS can approach or exceed instantaneous trip thresholds if waveform distortion is severe. Monitoring RMS values and ensuring load profiles remain below 80% of 1.5A minimizes risk. Adding line chokes or EMI filters reduces harmonic content and improves compatibility without affecting the breaker’s fundamental protection role.
Is there a difference in response time between the 4435.05 operating at 240V AC versus lower voltages like 120V, assuming constant current?
Response time remains largely unaffected by voltage within the rated range because the thermal mechanism depends on current magnitude and duration, not voltage level. However, at lower voltages, contact separation produces less disruptive arc energy, potentially improving reliability over repeated operations. Thus, while trip timing is consistent, longevity may improve at reduced voltages due to diminished arc damage during disconnection.
What documentation or test data supports the 4435.05’s performance claims, and where can engineers validate its suitability for custom applications?
Full technical validation relies on SCHURTER’s internal test reports aligned with IEC 60934 procedures, including dielectric strength, mechanical endurance, and temperature cycling. Engineers should request application notes or conduct controlled tests simulating expected load profiles, ambient conditions, and fault scenarios. Third-party verification through accredited labs adds confidence, particularly for non-standard usage such as DC conversion stages or pulsed loads where datasheet limits may not fully capture real-world behavior.

Parts with Similar Specifications

The three parts on the right have similar specifications to SCHURTER Inc. 4435.05

Product Attribute 4435.0504 4435.0501 4435.0506 4435.0503
Part Number 4435.0504 4435.0501 4435.0506 4435.0503
Manufacturer SCHURTER Inc. SCHURTER Inc. SCHURTER Inc. SCHURTER Inc.
Number of Poles - - - -
Voltage Rating - AC - - - -
Series - - - -
Voltage Rating - DC - - - -
Actuator Type - - - -
Illumination Voltage (Nominal) - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Approval Agency - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Illumination - - - -
Breaker Type - - - -
Current Rating (Amps) - - - -

4435.05 Datasheet PDF

Download 4435.05 pdf datasheets and SCHURTER Inc. documentation for 4435.05 - SCHURTER Inc..

PCN Design/Specification
Mult Devs - Label chg 09/FEB/2021.pdf Mult Devs - Label chg 06/OCT/2021.pdf

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
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We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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  • ISO 9001: 2015
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4435.05 Image

4435.05

SCHURTER Inc.
98D-4435.05

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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