40A 12V/24V/48V Automatic over-current DC circuit breaker / switch for panel or recess mount

Description

This 40A circuit breaker combines functions of a resettable 40A fuse and on/off switch in one unit. It is ideal for any DC system that requires both overcurrent protection and manual isolation of the circuit. The breaker is suitable for a wide range of DC system voltages from 12V to 48V.

Like any fuse, this circuit breaker is designed to protect the system from overcurrent as a result of high power draw, short-circuits, wiring mistakes, equipment faults or any other high current event. The circuit breaker is resettable which makes it a superior alternative to fuses which require replacement when blown.

Additionally, the breaker has a manual-break option which allows it to be used as an isolator on/off switch for simple disconnection and reconnection of the system.

The circuit breaker is made from strong thermal plastic engineered to withstand high temperatures (UL94V-0 rated). The breaker is also water resistant (IP67 rated) and ignition protected (meets international standards S.A.E. J1625, J1171, UL1500).

This product is suitable for a wide range of DC applications including:

• Connecting solar or wind charge controllers to batteries;
• Sitting between off-grid inverter DC input and batteries;
• DC power distribution or charging circuits;
• Other DC automotive and marine applications.

Please note this product is suitable for panel or recess mount.

Click on the Details and Specifications tab for more information.

Specifications

Circuit breaker specifications:

• Rating: 40A
• Type: Thermal overcurrent protection device
• Material: Thermal plastic (UL rated 94V-0)
• Operating temperature: -32C to 82C
• Storage temperature: -34C to 149C
• Terminals size: M6
• Enclosure: IP67
• Size: 74 x 48 x 37 mm
• Weight: 110g
• Waterproof rating: IP67
• International standard ratings (S.A.E. J1625, J1171, UL1500)

Installation

Please note that this circuit breaker is intended for panel or recess mounting.

Documents and links

The following documents are available to download:

Time vs Rated Current graph for Photonic Universe 40A Circuit breaker (CBR40)

Temperature derating graph for Photonic Universe 40A Circuit breaker (CBR40)