SINOFUSE EV315-3EN Road Vehicle Fuse Series, 10–50A, DC500V, EV Protection Category
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SINOFUSE EV315-3EN is a DC500V road vehicle fuse series covering six verified current ratings from 10A to 50A. The series uses the EV protection category and provides a DC breaking capacity of 20kA with a 2 ±0.5ms time constant. All EV315-3EN models share the same M4 bolt-mounted construction while rated current, pre-arcing I²t, clearing I²t, power loss and identification color vary by model. This page consolidates the exact purchasable MPNs and their manufacturer-published electrical characteristics for vehicle electrical-system design review, replacement identification and B2B procurement.
EV315-3EN Series Overview
The EV315-3EN 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 3EN construction uses M4 bolt mounting with a recommended torque of 2 ±0.5 N·m and a published unit weight of 13.5 ±1g. Manufacturer I²t values are measured under a DC520V, 20.6kA test condition with L/R = 2.63ms. The published time-current characteristics specify a minimum breaking current of at least 2 × In.
Technical Specifications
| Specification | Series Data |
|---|---|
| Product Type | 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 | M4 bolt mounting |
| Recommended Torque | 2 ±0.5 N·m |
| Standards | ISO 8820, JASO D622, GB/T 31465 |
| Compliance | RoHS compliant |
Technical data reference: SINOFUSE EV315-H-3EB/L-3EC/3EN/3EC/3EF Road Vehicle Fuse Specification, document ZR/YC-0155 B1.
EV315-3EN Model Selection
The EV315-3EN series provides six verified current options from 10A through 50A. Select the required model according to rated current and compare its pre-arcing I²t, clearing I²t and power loss against the requirements of the protected circuit. The manufacturer also assigns a different identification color to each current rating. Confirm the complete MPN, DC500V requirement, EV protection category, M4 mounting arrangement and actual vehicle load profile before replacement or ordering.
| Exact MPN | Rated Current | Pre-Arcing I²t | Clearing I²t | Power Loss | Color |
|---|---|---|---|---|---|
| EV315-3EN10A | 10A | 19 A²s | 64 A²s | 2 W | Red |
| EV315-3EN15A | 15A | 47 A²s | 144 A²s | 3 W | Blue |
| EV315-3EN20A | 20A | 83 A²s | 256 A²s | 4 W | Yellow |
| EV315-3EN30A | 30A | 333 A²s | 1,025 A²s | 6 W | Green |
| EV315-3EN40A | 40A | 748 A²s | 2,306 A²s | 8 W | Orange |
| EV315-3EN50A | 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 EV315-3EN series, including exact-model identification and technical alignment for vehicle electrical-system procurement and replacement requirements. Confirm the complete MPN, rated current, DC500V rating, EV category, I²t characteristics, power loss and M4 mounting requirements before replacing an existing fuse.
For RFQ review, submit the complete EV315-3EN 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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