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Home > Electrical & Electronics > Power Supply & Distribution > Switchgear > Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated thumbnail-3

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated thumbnail-4

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated thumbnail-5

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated photo-1

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated photo-2

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated photo-3

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated photo-4

Battery Disconnect Switch for 12V, 24V, 36V, 48V Systems, 250A Continuous Duty Rated photo-5

Product Spotlights

Heavy-duty 250A manual disconnect switch for 12V-48V DC systems. Features universal voltage compatibility, robust silver-plated contacts for minimal voltage drop, and an IP65-rated, weather-resistant housing. Provides safe battery isolation for maintenance, system protection, and theft deterrence with a lockable option. Ideal for marine, RV, automotive, and industrial applications.

US$ 5 ≥10 Units

Key Specifications

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Rated Voltage:

12V, 24V, 36V, 48V DC Systems

Continuous Current Rating:

250 Amps

Material:

High-strength engineering plastic and metal alloy

Contact Supplier Request Quote Chat Now

Jinhua Dika Electrical Equipment Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Rated Voltage 12V, 24V, 36V, 48V DC Systems

Continuous Current Rating 250 Amps

Material High-strength engineering plastic and metal alloy

Contact Type Heavy-duty silver-plated contacts

Mounting Type Panel mount with lockable knob

Terminal Type Stud terminals for secure cable connection

Application Marine, RV, automotive, industrial battery systems

Safety Feature Manual operation with clear ON/OFF indication

IP Rating IP65 (Dust-tight and protected against water jets)

As a leading manufacturer of electrical safety components, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our robust Battery Disconnect Switch, engineered for reliability in demanding 12V to 48V DC systems. With over a decade of experience and a commitment to quality, we design this switch to provide a fail-safe method for isolating battery power, protecting valuable equipment and ensuring operator safety. Our product is a cornerstone for system integrity in applications ranging from recreational vehicles to critical industrial machinery, reflecting our dedication to delivering components that professionals trust.

This heavy-duty disconnect switch is built to handle the rigorous demands of high-current applications. Its core design focuses on safety, durability, and ease of use, making it an indispensable component for any electrical system requiring a reliable master cutoff.

Universal Voltage Compatibility: Engineered to work seamlessly with 12V, 24V, 36V, and 48V DC electrical systems, this switch offers exceptional versatility. This broad compatibility makes it a single-solution component for fleets or workshops managing vehicles and equipment with different voltage requirements.
High-Current Capacity: Rated for 250 amps of continuous duty, the switch ensures stable performance under normal load conditions. The robust internal construction, featuring silver-plated contacts, minimizes voltage drop and heat generation, which is critical for maintaining system efficiency and preventing thermal failure.
Enhanced Safety and Security: The manual rotary operation provides positive, tactile feedback for ON and OFF positions. A lockable knob (lock optional) allows the switch to be secured in the OFF position, preventing unauthorized or accidental re-engagement—a vital feature for maintenance safety and theft deterrence.
Rugged and Weather-Resistant Construction: Housed in a high-strength engineering plastic and metal alloy body, the switch is built to withstand vibration, impact, and harsh environmental conditions. An IP65 rating guarantees protection against dust ingress and water jets, ensuring reliable operation in marine, agricultural, or outdoor settings.
Straightforward Installation: Designed for panel mounting with clear stud terminals, installation is quick and secure. The large terminal studs accommodate heavy-gauge cables, ensuring a solid, low-resistance connection that is crucial for high-current paths.

For system integrators and equipment manufacturers, incorporating this disconnect switch translates into tangible benefits:

System Protection: Acts as a primary safety device, allowing for the complete isolation of the battery to prevent electrical shorts, fire hazards, and battery drain during storage or maintenance.
Maintenance Efficiency: Provides a safe and convenient point to cut all power, streamlining troubleshooting and repair work without the need to disconnect battery cables manually.
Extended Component Life: By providing a reliable master cutoff, it helps protect sensitive electronics like alternators, inverters, and control modules from voltage spikes or fault conditions.
Regulatory Compliance Aid: The switch helps meet safety standards in various industries that require a readily accessible means of disconnecting all power sources.

Below is a summary of key technical specifications:

Parameter	Specification
Rated Voltage	12V, 24V, 36V, 48V DC
Continuous Current Rating	250 A
Peak Current (Surge)	Up to 1000 A for 10 seconds
Contact Resistance	< 0.5 mΩ
Dielectric Strength	1000 V AC for 1 minute
Mechanical Life	10,000 cycles minimum
Operating Temperature	-40°C to +85°C
Terminal Stud Size	M8
Mounting Hole Diameter	22 mm

Backed by Jinhua Dika's established manufacturing expertise and a comprehensive quality management system, this Battery Disconnect Switch represents a reliable choice for global partners. Our annual export value of US$1-1.5 Million to diverse markets including North America, Europe, and Southeast Asia is a testament to the consistent performance and trust our products garner. Sourced from our facilities in Zhejiang, China, and shipped via major ports like Shanghai and Ningbo, we ensure timely delivery and robust supply chain support. Choose this switch to add a critical layer of safety and control to your 12V-48V systems, and experience the durability that comes from a manufacturer dedicated to precision and electrical safety. Contact us today to discuss your requirements or to request samples.

Frequently Asked Questions (FAQ)

Q: Can this switch be used as an emergency stop device?
A: While it provides a master power cutoff, it is a manual rotary switch and not designed for instantaneous emergency stop applications that require a push-button or mushroom-head actuator. It is intended for planned isolation and safety during maintenance.
Q: Is the switch suitable for both lead-acid and lithium-ion battery systems?
A: Yes, the switch is designed for DC circuits and is compatible with common battery chemistries including lead-acid, AGM, gel, and lithium-ion, provided the system voltage (12V, 24V, 36V, 48V) is within the rated specification.
Q: What is the difference between continuous duty and intermittent rating?
A> Continuous duty (250A) means the switch can handle that current flow indefinitely under normal conditions. An intermittent or surge rating (much higher, e.g., 1000A) refers to the short-term current it can withstand, such as during motor starting, without damage.
Q: How do I wire the switch into my system?
A: The switch is wired in series on the main positive or negative cable from the battery. It features two stud terminals. The battery cable connects to one terminal, and the cable leading to the distribution system connects to the other. Always follow local electrical codes.
Q: Does the IP65 rating mean it's fully waterproof for submersion?
A: No, IP65 indicates protection against dust and low-pressure water jets from any direction. It is not rated for prolonged submersion. For applications requiring submersion protection, a higher IP rating (like IP67/68) would be necessary.
Q: Can the switch handle the high inrush current of an inverter?
A: The switch's surge rating is designed to handle short-duration high currents. However, for large inverters with very high inrush currents, it is recommended to verify that the peak current does not exceed the switch's specified surge rating for the expected duration.
Q: Is a locking mechanism included?
A> A lockable knob is a common feature, but the specific inclusion of a padlock or lock tab may vary. Please confirm with the product specification or supplier, as locks are often an optional accessory.
Q: What certifications does this product hold?
A: As a manufacturer, Jinhua Dika operates under a certified quality management system. The specific certifications applicable to this switch model can be confirmed upon request, as they may vary based on production batches and destination market requirements.