SINOFUSE EV315-L-3EC Lower Bolt-On Road Vehicle Fuse Series, 10–50A, DC500V
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SINOFUSE EV315-L-3EC is a lower bolt-on road vehicle fuse series covering six verified rated-current models from 10A to 50A. The series is rated DC500V, uses the EV protection category, and provides a DC breaking capacity of 20kA with a 2 ±0.5ms time constant. All included models share the L-3EC mechanical construction with M6 lower-bolt mounting, while rated current, pre-arcing I²t, clearing I²t, power loss and identification color vary by model. This page consolidates the exact purchasable MPNs and manufacturer-published electrical characteristics for vehicle electrical-system selection, replacement review and B2B procurement.
EV315-L-3EC Series Overview
The EV315-L-3EC family includes 10A, 15A, 20A, 30A, 40A and 50A variants. SINOFUSE specifies conformity to ISO 8820, JASO D622 and GB/T 31465 and identifies the series as RoHS compliant. The L-3EC construction uses lower M6 bolt connections with a recommended installation torque of 6 ±1 N·m. Published unit weight is 14.8 ±1.5g. Manufacturer I²t data is obtained under a DC520V, 20.6kA test condition with L/R = 2.63ms, and the published time-current data specifies a minimum breaking current of at least 2 × In.
Technical Specifications
| Specification | Series Data |
|---|---|
| Product Type | Lower bolt-on road vehicle fuse |
| Rated Voltage | DC500V |
| Rated Current Range | 10A–50A |
| Protection Category | EV |
| Breaking Capacity | DC 20kA, time constant 2 ±0.5ms |
| Minimum Breaking Current | At least 2 × In |
| Mounting | Lower bolt, M6 |
| Recommended Torque | 6 ±1 N·m |
| Standards | ISO 8820, JASO D622, GB/T 31465 |
| Normal Ambient Temperature | -5°C to 40°C |
Technical data reference: SINOFUSE EV315-H-3EB/L-3EC/3EN/3EC/3EF Road Vehicle Fuse Specification, document ZR/YC-0155 B1.
EV315-L-3EC Model Selection
The EV315-L-3EC series provides six verified current options from 10A through 50A. Select the required model according to rated current, then compare pre-arcing I²t, clearing I²t and power loss with the requirements of the protected circuit. Each current rating also has a manufacturer-specified identification color. SINOFUSE notes that actual fuse selection should consider whether the load is continuous or impulsive, the presence of switching surge current and the duration of the load. Confirm the complete MPN, DC500V rating, EV protection category and M6 lower-bolt mechanical fit before replacement or ordering.
| Exact MPN | Rated Current | Pre-Arcing I²t | Clearing I²t | Power Loss | Color |
|---|---|---|---|---|---|
| EV315-L-3EC10A | 10A | 19 A²s | 64 A²s | 2 W | Red |
| EV315-L-3EC15A | 15A | 47 A²s | 144 A²s | 3 W | Blue |
| EV315-L-3EC20A | 20A | 83 A²s | 256 A²s | 4 W | Yellow |
| EV315-L-3EC30A | 30A | 333 A²s | 1,025 A²s | 6 W | Green |
| EV315-L-3EC40A | 40A | 748 A²s | 2,306 A²s | 8 W | Orange |
| EV315-L-3EC50A | 50A | 1,330 A²s | 4,100 A²s | 10 W | White |
Verified Applications
SINOFUSE specifies this fuse family for road vehicle applications requiring resistance to temperature shock, mechanical vibration and shock, current shock and chemical load. Published applications include EV drive power, power-conversion systems, energy storage and power batteries, energy-storage capacitors, inverter controllers, chargers, wires and other vehicle devices and equipment requiring short-circuit and backup protection.
B2B Sourcing and Replacement Support
Apexon Supply provides B2B sourcing support for the SINOFUSE EV315-L-3EC series, including exact-model identification and technical alignment for vehicle electrical-system procurement and replacement requirements. Confirm rated current, DC500V rating, EV protection category, I²t characteristics, power loss and the M6 lower-bolt mounting arrangement before replacing an existing fuse.
For RFQ review, submit the complete EV315-L-3EC MPN, required quantity and application requirements. Apexon Supply can review sourcing options and help align the requested model with the documented electrical and mechanical specifications before ordering.
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