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HomeProductsCircuit ProtectionCircuit BreakersGA1-B0-20-660-11-DC
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GA1-B0-20-660-11-DC - Carling Technologies

Manufacturer Part Number
GA1-B0-20-660-11-DC
Manufacturer
Carling Technologies
Allelco Part Number
98D-GA1-B0-20-660-11-DC
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
39,082 pcs available, New & Original
Parts Description
CIRCUIT BREAKER
Package
Bulk
Data sheet
-
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 39082
  • Unit Price: $64.905
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $64.905 $64.91
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

GA1-B0-20-660-11-DC Tech Specifications
Carling Technologies - GA1-B0-20-660-11-DC technical specifications, attributes, parameters and parts with similar specifications to Carling Technologies - GA1-B0-20-660-11-DC

Product Attribute Attribute Value
Manufacturer Carling Technologies
Voltage Rating - DC 125 V
Voltage Rating - AC 240 V
Series G
Package Bulk
Number of Poles 1
Mounting Type DIN Rail
Product Attribute Attribute Value
Illumination Voltage (Nominal) -
Illumination None
Current Rating (Amps) 60A
Breaker Type Magnetic (Hydraulic Delay)
Approval Agency CCC, UL
Actuator Type Lever

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8536.20.0020

Frequently Asked Questions(FAQ)

How does the GA1-B0-20-660-11-DC compare to other Carling Technologies circuit breakers in terms of interrupting capacity and thermal stability under sustained overload conditions?
The GA1-B0-20-660-11-DC is rated for 60A continuous current with a 240V AC and 125V DC operational range, which aligns with standard industrial magnetic-hydraulic delay mechanisms designed for moderate-duty applications. Its hydraulic delay feature provides controlled tripping during short-duration overcurrents, reducing nuisance trips while still protecting against sustained overloads. Compared to higher-end models like the G Series with enhanced arc suppression or multi-pole configurations, this single-pole unit prioritizes simplicity and reliability in space-constrained DIN rail installations. Thermal stability is maintained through internal bimetal and electromagnetic coil integration, but prolonged operation above 70% of rated current may accelerate contact erosion over time.
What design considerations should engineers evaluate when integrating the GA1-B0-20-660-11-DC into a system requiring compliance with both UL and CCC certifications?
When designing systems using the GA1-B0-20-660-11-DC, engineers must ensure that the overall assembly adheres to regional safety standards. Although the breaker itself is certified by both UL and CCC, the complete installation—including wiring practices, enclosure ratings, and fault isolation—must meet local regulatory requirements. For instance, proper creepage and clearance distances must be maintained on the DIN rail mounting surface, and the lever actuator must remain accessible per panel layout guidelines. Additionally, since the device lacks illumination, visual status indication must be addressed elsewhere in the control logic if required.
How does the hydraulic delay mechanism in the GA1-B0-20-660-11-DC affect response time compared to purely electromagnetic trip units?
The hydraulic delay in the GA1-B0-20-660-11-DC introduces intentional latency in tripping to distinguish between harmless inrush currents (such as motor starting) and true faults. Under normal load fluctuations below approximately 8–10 times rated current, the mechanism suppresses immediate actuation, allowing transient surges to pass without interruption. In contrast, pure electromagnetic breakers trip instantaneously at roughly 3–5× rated current. This makes the GA1 model more suitable for circuits where temporary high-current events are expected, improving system availability while still providing protection above 10× I_n within seconds.
Can the GA1-B0-20-660-11-DC be used in DC-only applications exceeding 125 VDC, and what risks does this pose?
Operating the GA1-B0-20-660-11-DC above its specified 125 VDC rating is not recommended and increases the risk of arcing across contacts during disconnection. While the internal dielectric strength may support brief excursions, extended exposure can degrade insulation materials and compromise contact integrity, especially given the absence of active arc quenching features typical in AC-rated devices. Even though the physical construction appears robust, derating for DC voltage is essential due to the lack of zero-crossing inherent in DC waveforms, which prolongs arcing duration.
How does the single-pole configuration of the GA1-B0-20-660-11-DC influence grounding and fault current path management in an industrial control panel?
As a single-pole breaker, the GA1-B0-20-660-11-DC interrupts only the hot leg of a circuit, assuming a separate grounding conductor is present elsewhere in the system. This simplifies wiring in non-grounded or ungrounded delta configurations but requires careful coordination with downstream devices to ensure full de-energization during faults. Engineers must verify that protective earth connections are properly bonded and that residual current monitoring is implemented if needed, particularly in environments with sensitive electronics vulnerable to transient ground shifts.
What environmental and mechanical constraints should be considered when selecting bulk-packaged GA1-B0-20-660-11-DC units for mass production?
The GA1-B0-20-660-11-DC is supplied in bulk packaging, making it ideal for high-volume manufacturing where automated DIN rail insertion is feasible. However, storage conditions must maintain relative humidity below 90% to prevent moisture ingress that could compromise solder joints or corrosion-prone components. Mechanical shock during handling must also be minimized; although designed for rail-mounted durability, excessive vibration near resonant frequencies could fatigue internal latches. Assembly line personnel should use ESD-safe tools, as static discharge may affect adjacent control circuitry even though the breaker itself lacks sensitive solid-state elements.
In what scenarios would the lack of illumination on the GA1-B0-20-660-11-DC necessitate additional diagnostic measures?
Since the GA1-B0-20-660-11-DC has no built-in LED or indicator light, technicians cannot visually confirm whether the breaker is in the ON or OFF position without physical interaction. This becomes problematic in panels with densely packed components or remote access points. To mitigate this, engineers might integrate auxiliary contacts or opt for external status LEDs triggered via relay outputs. Alternatively, firmware-level monitoring could log trip events from a supervisory controller, adding intelligence but increasing system complexity beyond basic protection needs.
How does the lever-type actuator on the GA1-B0-20-660-11-DC compare to toggle or rocker actuators in terms of user ergonomics and maintenance accessibility?
The lever actuator offers a clear, tactile feedback mechanism that allows users to easily discern position without visual inspection—a significant advantage over small toggles prone to misreading. Compared to rocker actuators, the lever provides better leverage for manual resetting after tripping, particularly useful in confined spaces. However, it occupies slightly more vertical space on the DIN rail than compact rockers, potentially limiting density in ultra-slim enclosures. Maintenance crews generally prefer levers due to their intuitive orientation and resistance to accidental reactivation during servicing.
What implications does the RoHS3 compliance of the GA1-B0-20-660-11-DC have for global supply chain compatibility and end-of-life disposal?
RoHS3 compliance ensures the GA1-B0-20-20-660-11-DC contains no restricted substances such as lead, mercury, cadmium, or phthalates above permitted thresholds, facilitating use across major markets including EU, China, and North America. This reduces customs delays and supports corporate sustainability reporting. However, engineers should still verify supplier declarations annually, as certification can vary between production lots. At end-of-life, the unit should be recycled through certified e-waste programs due to its metal content and potential presence of brominated flame retardants in printed circuit boards or insulating plastics.
How does the magnetic-hydraulic delay characteristic influence the selection of upstream fusing or downstream protection schemes when using the GA1-B0-20-660-11-DC?
Because the GA1-B0-20-660-11-DC exhibits time-delayed response to moderate overcurrents, coordination with upstream fast-acting fuses or downstream electronic protection ICs requires careful curve matching. If fuses trip too quickly, they may conflict with the breaker’s intended protection zone, leading to unnecessary downtime. Conversely, if downstream devices react slower, fault energy dissipation may shift toward the breaker, increasing stress. Proper coordination typically involves ensuring that fuses provide backup protection above the breaker’s ultimate breaking capacity while respecting thermal limits of connected loads.
What factors determine whether the GA1-B0-20-660-11-DC is suitable for use in high-vibration industrial environments such as mobile machinery or HVAC compressors?
The GA1-B0-20-660-11-DC is engineered for DIN rail mounting in stationary control cabinets, but moderate vibration levels up to 5g RMS (per IEC 60068-2-6) are generally tolerable due to its robust mechanical linkage and spring-loaded contacts. However, severe vibration common in mobile platforms may cause premature wear on the hydraulic delay piston or loosen mounting screws over time. In such cases, supplemental damping or alternative mounting brackets should be evaluated. Additionally, thermal cycling associated with vibration-heavy applications must be factored into long-term reliability assessments.
How does the absence of multi-pole functionality in the GA1-B0-20-660-11-DC affect phase balancing in three-phase systems?
The single-pole nature of the GA1-B0-20-660-11-DC means it protects only one phase in a three-phase system, leaving the other two phases unmonitored unless separately protected. This can lead to unbalanced loading and potential overheating in unused phases if not carefully managed. Engineers must either apply identical breakers to all legs or implement centralized monitoring to detect imbalance conditions. This limitation makes the GA1 less ideal for critical three-phase loads requiring simultaneous disconnection, though acceptable in single-phase-fed sub-circuits derived from balanced mains.
What are the consequences of operating the GA1-B0-20-660-11-DC continuously at 80% versus 60% of its rated current in terms of contact life and maintenance intervals?
Continuous operation at 80% of rated current (48A) increases resistive heating in contacts due to elevated Joule losses, accelerating oxidation and pitting. While modern silver-alloy contacts resist this, lifespan may decrease significantly compared to 60% loading (36A), where thermal stress is minimal. Maintenance intervals should be shortened accordingly, and periodic contact cleaning or resistance testing may be warranted. In contrast, running consistently at 60% extends service life and improves efficiency, aligning with best practices for long-term reliability in mission-critical systems.
How does the Carling Technologies G Series platform differentiate the GA1-B0-20-660-11-DC from other members like GA2 or GB variants in application suitability?
Within the G Series, the GA1-B0-20-660-11-DC targets medium-current, single-pole applications requiring magnetic-hydraulic delay and DIN rail mounting. Variants like the GA2 offer higher pole counts or lower current ratings, while GB models may include integrated diagnostics or different actuator types. The GA1’s specific combination of 60A, 240V AC/125V DC, and lever actuation makes it optimal for main branch protection in control panels rather than sub-circuit distribution. Selection hinges on whether the application demands simplicity, cost-efficiency, and proven field performance over advanced features.
What role does the lever actuator play in preventing accidental re-energization during equipment servicing, and how does it compare to push-button designs?
The lever actuator on the GA1-B0-20-660-11-DC requires deliberate upward motion to close, which acts as a natural safeguard against accidental restarts during maintenance. Unlike push-button types that can be inadvertently pressed, the lever’s travel distance and mechanical detent make unintended activation unlikely. This enhances operator safety in accordance with lockout-tagout (LOTO) protocols. Additionally, the visible open/closed state aids supervisors in verifying isolation, reducing human error in high-risk environments such as manufacturing floors or utility substations.
How should the GA1-B0-20-660-11-DC be stored before installation to preserve long-term reliability?
To maintain reliability, the GA1-B0-20-660-11-DC should be stored in a dry environment with temperature between -40°C and +85°C, avoiding direct sunlight and corrosive atmospheres. Moisture absorption can affect internal lubricants in the hydraulic delay mechanism and promote galvanic corrosion between dissimilar metals. If stored for over six months, periodic functional checks should be performed to ensure the lever moves freely and contacts remain clean. Bulk packaging should be opened just prior to installation to minimize exposure to ambient contaminants.
In what ways does the absence of arc suppression technology in the GA1-B0-20-660-11-DC impact its use in capacitive load switching applications?
Capacitive loads generate high inrush currents upon connection, which can exceed the GA1-B0-20-660-11-DC’s delayed trip threshold and trigger unwanted disconnection. Without dedicated arc suppression—common in molded-case circuit breakers—the device may repeatedly cycle or sustain contact welding if switched frequently. Engineers should instead use soft-start circuits or pre-charge resistors to limit peak current, ensuring the breaker operates within its intended protection profile rather than acting as a switch. This preserves contact life and prevents system instability.
How does the HTSUS code 8536.20.0020 inform import duties and regulatory classification for the GA1-B0-20-660-11-DC in international trade?
The Harmonized Tariff Schedule of the United States (HTSUS) code 8536.20.0020 classifies the GA1-B0-20-660-11-DC as a “Automatic circuit breakers” under Chapter 85, indicating it is subject to standard electronics tariffs rather than higher-tier machinery codes. This simplifies customs processing in U.S.-bound shipments and reflects its functional equivalence to industrial-grade protective devices. Exporters should retain this classification during documentation to avoid delays, especially when shipping in bulk quantities to regions with strict import controls.

Parts with Similar Specifications

The three parts on the right have similar specifications to Carling Technologies GA1-B0-20-660-11-DC

Product Attribute GA1-B0-20-620-11-DC GA1-B0-20-630-11-DC GA1-B0-20-615-11-DC GA1-B0-22-460-11-DE
Part Number GA1-B0-20-620-11-DC GA1-B0-20-630-11-DC GA1-B0-20-615-11-DC GA1-B0-22-460-11-DE
Manufacturer Carling Technologies Carling Technologies Carling Technologies Carling Technologies
Number of Poles - - - -
Voltage Rating - DC - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage Rating - AC - - - -
Series - - - -
Actuator Type - - - -
Current Rating (Amps) - - - -
Illumination Voltage (Nominal) - - - -
Approval Agency - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Illumination - - - -
Breaker Type - - - -

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Carling Technologies

GA1-B0-20-660-11-DC

Carling Technologies
98D-GA1-B0-20-660-11-DC

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