Bussmann (now a subsidiary of Eaton Corporation) offers a 315A fuse

Bussmann (now a subsidiary of Eaton Corporation) offers a 315A fuse element product line covering various voltage levels, breaking capacities, and application scenarios.

1. Core Models and Parameters
2. 170M1472 (690V AC)

Voltage/Current: 690V AC, 315A

Applications: Suitable for semiconductor protection, AC/DC drive systems, and power converters.

Breaking Capacity: 80kA (compliant with IEC 60269 standard).

Dimensions: 0.94 inches in height × 1.42 inches in width × 3.78 inches in length (24×36×96mm).

2. 315NH3M (500V AC)

Voltage/Current: 500V AC, 315A.

Applications: Motor protection, compliant with IEC/VDE certifications.

Technical Documentation: Available through the manufacturer’s official website or authorized distributors.

3. 315BMT (240V AC)

Voltage/Current: 240V AC, 315A.

Applications: Industrial, utility, and household circuits, compliant with BS88 standard.

Breaking Capacity: 50kA (UL certified).

4. PV-315A-3L-15 (1500V DC)

Voltage/Current: 1500V DC, 315A.

Applications: String protection in photovoltaic systems, compatible with SD 3L-S fuse holders.

Certifications: UL 2579 (photovoltaic-specific), IEC 60269-6.

Breaking Capacity: 33kA (at 1500V DC).

5. 315FM (690V AC/450V DC)

Voltage/Current: 690V AC/450V DC, 315A.

Applications: High-speed semiconductor protection, compliant with BS88 Part 4 and UL certification.

Breaking Capacity: 200kA (AC) / 40kA (DC).

1. Key Technical Features

Breaking Capacity: Ranging from 80kA (basic type) to 200kA (high-spec models), selection should be based on the short-circuit current of the circuit.

Certification Standards:

UL Certification: Models such as 315FM and PV-315A-3L-15 are suitable for the North American market.

IEC/BS88: European and internationally recognized standards, applicable to models like 170M3067 and 315BMT.

Installation Compatibility:

– Some models (e.g., PV series) require matching dedicated fuse holders (e.g., SD 3L-S).

– Dimensions comply with DIN 43620 (NH series) or BS88 (FM series) standards.

III. Purchasing Channels and Price Reference

1. Authorized Distributors

– Offer various models (e.g., 170M3067, 315LMT) with fast shipping within the United States.

RS Online: The unit price of 170M1472 is approximately $157.93 (bulk discounts can reach $122.85 per unit).

– The unit price of model 170M1322 is $192.50, and it can be reduced to $158.40 per unit for bulk orders of 100 or more.

– PV-315A-3L-15, suitable for photovoltaic systems, has a unit price of approximately $839.47.

2. Local Resources in Los Angeles

– Graybar has service centers near Los Angeles (e.g., Irvine, Santa Ana), with real-time inventory available on its official website.

– Local electrical distributors (WhatsApp: 0086-13811255435) may provide spot support.

1. Selection Recommendations
2. Voltage Matching: Prioritize models consistent with the nominal voltage of the circuit (e.g., photovoltaic systems require 1500V DC dedicated fuse elements).
3. Breaking Capacity: Select based on short-circuit current calculation results; for example, industrial equipment typically requires 80kA or higher.
4. Certification Compliance: For the North American market, UL-certified models (e.g., 315FM) are recommended; for the European market, prioritize IEC/BS88 standards.
5. Installation Method: Confirm the type of fuse holder (e.g., DIN rail-mounted, bolt-mounted) to avoid size incompatibility.
6. Technical Support and Documentation

Installation Guidelines:

– Ensure power is disconnected and verify with a voltage tester before operation. Pay attention to the direction of the fuse element during installation (e.g., the arrow on PV series should align with the current flow).

– After replacement, perform no-load and load tests to ensure good contact.

1. Notes

Replacement Compatibility: Fuse elements from different series (e.g., NH, FM, PV) must not be mixed; strictly match the original model.

Inventory Inquiry: For urgent needs, it is recommended to contact distributors directly (e.g., via WhatsApp: 0086-13811255435) to confirm spot availability in Los Angeles warehouses.

Price Fluctuations: Bulk purfor 100 units is $158.40 per unit.