ADLER EF3 Fuse 200 Vdc / 150 A – MG5001323

This ADLER EF3 high-breaking-capacity DC fuse is rated at 150 A under 200 Vdc. It is primarily intended for protecting a battery bank in a properly sized MG Energy system, particularly in MG Energy DC protection panels.

The main electrical characteristics of this fuse are:

Rated current: 150 A
Rated voltage: 200 Vdc
Breaking capacity: 50 kA at 200 Vdc

The declared breaking capacity for this fuse is 50 kA at 200 Vdc.

This fuse has a compact EF3 format of 36 × 22 mm and an M8 bolt mounting.

Length (A): 77 ± 1 mmWidth (B): 25.0 ± 1 mmHeight (C): 2 mmMounting hole spacing (D): 62 ± 0.8 mmMounting hole diameter (H): φ8.5 ± 0.5 mm

Yes, this fuse is a UL-recognized component (file no. E506668). It is also designed to UL 248-20, ISO 8820-8, GB/T 31465, and IEC 60269-7 standards. It is manufactured under an IATF 16949 quality system and is RoHS and REACH compliant.

The exact reference for this fuse is MG5001323 from the MG Energy Systems catalog. The ADLER part number is EF33150220.

The power loss (watt loss) of this fuse is 23.1 W at 1.0 In (rated current).

Yes, this fuse meets the vibration test requirement C of section 8.6.2.3 of UL248-20, making it suitable for electric and marine applications subject to vibration.

The key features of this ADLER EF3 fuse include:

An exact rating of 150 A at 200 Vdc. A high breaking capacity of 50 kA at 200 Vdc. A compact EF3 format of 36 × 22 mm with M8 bolt mounting. Reliable DC fault current interruption capability. High cycling performance. Low watt losses. Overload protection as low as 410% of the rated current.

The recommended environmental conditions for satisfactory operation are:

Normal temperature: from -5°C to 40°C. Altitude: must not exceed 2000 m above sea level. Air: clean, with relative humidity not exceeding 50% at the maximum temperature of 40°C. Higher relative humidity is permitted at lower temperatures (e.g., 90% at 20°C), with occasional moderate condensation possible.

No, this product is not classified as dangerous goods for transport.

This fuse provides overload protection with operation as low as 410% of the rated current (In).

Selection of the fuse rating and coordination of protections, as well as installation or replacement of the fuse, must be performed by a qualified professional.

The recommended torque for ADLER M8 bolts is 12 ± 1 N·m. This torque must be confirmed based on the specific assembly of MG Energy Systems.

Before installing or replacing the fuse, it is essential to disconnect all DC sources in the system to ensure operator and equipment safety.

The fuse is supplied separately. You will need to provide separately:

A compatible fuse holder. A busbar (if required). The appropriate cables. The terminals and fasteners specific to your installation.

Yes, a selectivity study and validation of the fault current are required to ensure optimal and coordinated protection of your system.

The MG Energy Systems dealer portal indicates that this fuse can be installed in the Master LV and the Distributor LV.

No, it is critical to replace this fuse only with a 150 A fuse strictly validated for your MG Energy system architecture. Using an incorrect rating may compromise safety and proper operation of the installation.

No, the fuse’s rated current must never be selected solely based on the battery’s power rating. The correct amperage must be determined through precise calculation and coordinated protection design by a qualified professional, accounting for the entire system architecture.