We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
BUSSMANN CBT-M Type II Automotive Circuit Breaker - Plug-In Mount Automotive Circuit Breakers
BUSSMANNPlug-In Mount Automotive Circuit Breakers

BUSSMANN CBT-M Type II Automotive Circuit Breaker

The BUSSMANN CBT-M Automotive Circuit Breaker is a Type II automotive circuit breaker with a blade terminal connection, designed for plug-in mount applications. It operates at 12V DC and is part of the CBT-M series…

SKU 3G-OTH-19651

Also listed as: CBT20M · CBT 20M

Brand
BUSSMANN
Item
CBT-M Type II Automotive Circuit Breaker
Part Number
CBT-20M
Category
Plug-In Mount Automotive Circuit Breakers
Available to Order
Also known as:CBT-20MBUSSMANN
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

BUSSMANN
Manufacturer Part Number
CBT-20M
Series
CBT-M
Voltage
12V DC
Interrupt Rating
Not Rated
Terminal Connection
Blade
Circuit Breaker Type
Type II Automotive Circuit Breaker

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BUSSMANN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BUSSMANN CBT-M Automotive Circuit Breaker is a Type II automotive circuit breaker with a blade terminal connection, designed for plug-in mount applications. It operates at 12V DC and is part of the CBT-M series, with an interrupt rating of Not Rated. This product, identified by MPN CBT-20M, provides overcurrent protection in automotive electrical systems.

Frequently Asked Questions

What is the BUSSMANN CBT-M automotive circuit breaker used for?

The BUSSMANN CBT-M automotive circuit breaker provides overcurrent protection in 12V DC automotive electrical systems. It is commonly used in vehicles, trucks, and marine applications to protect wiring and components from short circuits and overloads, automatically resetting after the fault clears.

What are the specifications of the BUSSMANN CBT-20M circuit breaker?

The BUSSMANN CBT-20M is a Type II automotive circuit breaker from the CBT-M series. It operates at 12V DC, features a blade terminal connection for plug-in mounting, and has an interrupt rating of Not Rated. The manufacturer part number is CBT-20M, and it is designed for overcurrent protection in automotive systems.

Where to buy BUSSMANN CBT-M circuit breakers worldwide?

You can source BUSSMANN CBT-M circuit breakers worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine BUSSMANN components for automotive overcurrent protection.

How to install a BUSSMANN CBT-M blade circuit breaker?

To install a BUSSMANN CBT-M blade circuit breaker, ensure the power is off. Insert the blade terminals into a compatible fuse block or panel slot designed for Type II breakers. Press firmly until seated. The breaker automatically resets after a fault; no manual reset is needed. Always follow the vehicle manufacturer's wiring guidelines.

Used in

Common applications for BUSSMANN
Industrial drives — BUSSMANN FWC series fast-acting cylindrical fuses protect power semiconductors in AC/DC drive circuits.
Control transformers — BUSSMANN FNQ-R series time-delay fuses handle inrush currents in control power circuits.
Semiconductor protection — BUSSMANN KAC series bolt-on fuses safeguard diodes, thyristors, and IGBTs in AC-only applications.
Electrical panels — BUSSMANN FP-2, FP-3, FP-4, and FP-6 fuse pullers enable safe fuse replacement in distribution panels.
Automotive electrical systems — BUSSMANN FP-A3 fuse puller removes and installs 1/4 in and 1/2 in automotive fuses.
Power supplies — BUSSMANN FWC series fuses provide overcurrent protection in AC/DC power supply circuits.
Not sure this is the right part? Photo-identify it

BUSSMANN Products

3G Electric supplies BUSSMANN plug-in mount automotive circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BUSSMANN

View all BUSSMANN parts
Type I ATC plug-in mount circuit breaker rated for 12V DC with an interrupt rating of 100A. Features blade terminal connection and automatic reset after fault clearance. Suitable for overload and short circuit protection in automotive electrical systems
BUSSMANN
Type I ATC plug-in mount circuit breaker rated for 12V DC with an interrupt rating of 100A. Features blade terminal connection and automatic reset after fault clearance. Suitable for overload and short circuit protection in automotive electrical systems
Plug-in mount automotive circuit breaker from the CB227 series. Rated for 28V DC with an interrupt rating of 2 kA at 28V DC. Features a blade terminal connection and Type III ATC footprint for automatic reset after fault clearance. Suitable for protecting wiring and components in 28V DC electrical systems
BUSSMANN
Plug-in mount automotive circuit breaker from the CB227 series. Rated for 28V DC with an interrupt rating of 2 kA at 28V DC. Features a blade terminal connection and Type III ATC footprint for automatic reset after fault clearance. Suitable for protecting wiring and components in 28V DC electrical systems
Plug-in mount circuit breaker with Type II ATC footprint and blade terminal connection. Rated for 12V DC systems with an interrupt rating of 225 A at 14V DC. Automatically resets after fault clearance. Suitable for overload and short circuit protection in vehicle electrical systems
BUSSMANN
Plug-in mount circuit breaker with Type II ATC footprint and blade terminal connection. Rated for 12V DC systems with an interrupt rating of 225 A at 14V DC. Automatically resets after fault clearance. Suitable for overload and short circuit protection in vehicle electrical systems
This BUSSMANN circuit breaker is a MAXI Type I, footprint design for plug-in mount applications in 14V DC automotive electrical systems. It provides overcurrent protection with a 150 A interrupt rating at 14V DC and features blade terminal connections. Suitable for use in vehicle power distribution and auxiliary circuits
BUSSMANN
This BUSSMANN circuit breaker is a MAXI Type I, footprint design for plug-in mount applications in 14V DC automotive electrical systems. It provides overcurrent protection with a 150 A interrupt rating at 14V DC and features blade terminal connections. Suitable for use in vehicle power distribution and auxiliary circuits
Plug-in mount automotive circuit breaker with Type III ATC footprint. Rated 28V DC with 2 kA interrupting capacity. Blade terminal connection for easy installation in fuse blocks or power distribution panels. Suitable for overcurrent protection in vehicle electrical systems
BUSSMANN
Plug-in mount automotive circuit breaker with Type III ATC footprint. Rated 28V DC with 2 kA interrupting capacity. Blade terminal connection for easy installation in fuse blocks or power distribution panels. Suitable for overcurrent protection in vehicle electrical systems

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first