Content:

Introduction

1.70VDC Fuse

2.150VDC Fuse

3.500VDC Fuse

4.800VDC Fuse

5.1000VDC Fuse

6.1500VDC Fuse

7.690Vac~1250Vac Fuse

8.Pyrofuse

9.DC Contactor

Bussmann has more products for ESS application, and will continue to develop new products to meet customer’s requirement

This article is intended to present product data and provide technical information that will help the end user with design application. Eaton reserves the right, without notice, to change design or construction or any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this catalog. Once a product has been selected, it should be tested by the user in all possible applications. 

Power demand is forever increasing. Traditional energy generation has been supported, in the last decade, by the growth ofrenewable energy technology such as solar, wind and tidal. The need to store the energy generated, by both traditional andrenewable methods, is becoming necessary to make sure power is continually provided where and when required.

Battery storage systems provide a number of advantages of being modular, easily deployable in proximity to power generationapplications and even retro fitted to existing systems.

IEC 60269-7 Battery storage fuse links standard

The protection requirements within battery Storage systems are quite different when compared to typical grid connected ACsystems. in batery systems the protective devices are required to operate in DC systems which may have high faults currentsand a number of lower over curent situations. For this reason, Eaton has conducted extensive research and development of itsEaton's Bussmann series fuse links that are specifically designed and tested to safely protect battery storage systems with highDC voltages and low fault currents

The International Electrotechnical Commission (lEC) has recognised the protection of Battery Storage systems is different tostandard electrical instalations, This is refected in the proposed standard lEC 60269-7 which wil define specific characteristicsthat a fuse link is required to meet for protecting Batery Storage Systems, with the inclusion utilisation classes gBat and aBatThe two classes reflect the configurations where ful range or partial range protection is required. The proposed standard alsoreflects the battery storage systems may have high fault curents, Eaton's range of Bussmann series battery storage fuse linkshas been specifically designed to meet this proposed standard.

To identify fuse links to the proposed standard the combination of thesymbols for fuse-link and a single cell are used to indicate a fuse-linkis suitable for protecting batteries, particularly in storage systems, see Figure 1.

Battery storage system applications

Battery storage systems have become one of the most common form of electrical energy storage that converts electrical energytrom the arid, solar and wind farms into a stored form for ater use in residentialhomes, commercialbuildings industrial sites.Eaton's Bussmann series has a vast array of fuse links able to support your applications.

Residential battery storage applications

Commercial scale battery storage applications

Utility scale battery storage applications

PCS Fuse Solution 

BESS Fuse Solution

1. 70VDC Fuse

(1)Bussmann EVH Series Fuse: 

DC low voltage circuit protection fuse with compact size

Standards / Agency information

• ISO20934-2019(Type SF51)

• RoHS and ELV Compliant

• UL Recongnized (EVHXXX&EVH-XXX-M6)

Typical applications

• High current protection for battery, other

• similar DC circuit application

2. 150VDC Fuse

(1)Bussmann BS88 Series (LCT, LET, LMT, LMMT): 

BS88 style high speed fuse links.

Technical data

• Rated voltage LCT, LMT, LMMT:

• 240V a.c./150V d.c. (IEC)

• 250V a.c./150V d.c. (UL)

• Rated voltage LET

• 280V a.c./150V d.c. (UL 25-160 A)

• 250V a.c./150V d.c. (UL 180 A)

• Rated current

• LCT: 6-20 A

• LET: 25- 180 A

• LMT: 160- 450 A

• LMMT:400-900A

• Breaking capacity LCT, LET

• 200 kA RMS Sym

• 50 kA DC at 125V d.c.

• Breaking capacity LMT, LMMT

• 200 kA RMS Sym., 40 kAat 150V d.c.(IEC)

• 200 kA RMS Sym., 50 kAat 150V d.c. (UL)

• Operating class: aR

Agency information

• CE

• Designed and tested to BS88 part 4

• IEC 60269 Part 4

• UL recognised

• All the fuse links have been tested at 318 V a.c.,

Features and benefits

• Excellent cycling capability and DC performance

• Low arc voltage and low energy let-through (I2 t)

Typical applications

• DC common bus

• AC and DC drives

• Power converters/rectifiers

• Reduced voltage starters

 IEC: 240vac./150vdc

UL: 250vac/150vdc

3. 500VDC Fuse

(1)Bussmann BS88 Series Fuse(CT, ET, FE, EET, FEE, FM, FMM, MT, MMT): 

BS88 style high speed fuse links.

Technical data

• Rated current: 6 - 710 A

• Operating class: aR

• Breaking capacity

Agency information

• CE

• Designed and tested to BS88 part 4

• IEC 60269 Part 4

• CCC for ET, FE, EET, FEE, FM and FMM

Features and benefits

• Excellent cycling capability and DC performance

• Low arc voltage and low energy let-through(I2 t)

• Low watts loss

Typical applications

• DC common bus

• DC drives

• Power converters/rectifiers

• Reduced voltage starters

 690 V a.c. / 500 V d.c. (IEC)
700 V a.c. / 500 V d.c. (UL)

(2)Bussmann FWH-C Series Fuse: 

Bolted tags high speed fuse links

Standards / Agency information

• CCC & UL (AC 200kA)

• UL (DC 50kA)

Typical applications

• DC common bus

• Power converters/rectifiers

• Reduced voltage starters

4. 800VDC Fuse 

(1)Bussmann 170M17xx Series: 

Bolted tags high speed fuse

Standards / Agency information

• UL DC Recognized, 800 Vdc L/R 1 ms max

Typical applications

• Protection to IGBT modules

• Optimization for use in IGBT inverter circuits

Specifications:

Description: High speed fuse links for the protection of IGBT modules, optimized for use in IGBT inverter

circuits with DC-link voltages up to 750Vdc. Low inductance ≤15nH.

Ratings:

Volts: 690Vac / 750Vdc - Tested at 863Vdc according to IEC 60269-4.

700Vac / 800Vdc - Tested at 800Vdc according to UL 248-1

Amps: 25 - 630A

IR: 200kA RMS Sym / 50kA dc(1ms tc)

Operating Class: aR

Agency Information: UL DC recognized, 800Vdc LR 1mS. min.

(2)Bussmann CBX000S Series Fuse:

The battery storage fuses are specifically designed to protect and isolate battery strings and converters system at DC side.

Standards / Agency information

• IEC60269-4/GB135394

Typical applications

• Battery strings and converters system at DC side

5. 1000VDC Fuse

(1)Bussmann 170M18xx Series: 

Bolted tags high speed fuse

Standards / Agency information

• UL DC Recognized, 1000 Vdc L/R 1 ms max

Typical applications

• Protection to IGBT modules

• Optimization for use in IGBT inverter circuits

Specifications:

Description: High speed fuse links for the protection of IGBT modules, optimized for use in IGBT inverter

circuits with DC-link voltages up to 1000Vdc. Low inductance ≤20nH.

Ratings:

Volts:1000Vac / 1000Vdc - Tested at 1150Vdc according to IEC 60269-4.

1000Vac / 1000Vdc - Tested at 1000Vdc according to UL 248-1

Amps: 25 - 5000A

IR: 100kA RMS Sym / 50kA dc(1ms tc)

Operating Class: aR

Agency Information: UL DC recognized, 1000Vdc LR 1mS. min.

(2)Bussmann CBX01S Series Fuse: 

These fuse links are capable of interrupting extremely high fault currents provided by battery storage system.

Standards / Agency information

• UL248

• UL Recongnized

Typical applications

• Battery storage system

(3)Bussmann PV-ANH Series Fuse

• A range of 1000Vdc NH size photovoltaic fuse

Standards / Agency information

• UL Listed, Guide JFGA, File E335324, Photovoltaic to UL 248-19, IEC 60269-6 gPV, CSA Class 1422-30, File 53787 (32-160 A), UL Listed, IEC gPV, CSA, CCC Pending, RoHS compliant

Features

• Compact size saves panel space and extends design flexibility

• Bolt-on versions have common hole centers for standardizing busbar designs across 63-400 amp range

• Low power loss for greater efficiency and lower operating temperature

• Dual indication feature and optional microswitches make system monitoring easier

Typical applications

• Recombiner boxes

• Inverters

6. 1500VDC Fuse

(1)Bussmann ESS Series Fuse:

• The battery storage fuses

Standards / Agency information

• UL (ESS2)

• UL and TUV (ESS3, ESS5)

Typical applications

• Coordinated with battery module fuses to save the safe of the battery modules and electricity continuity.

ESS2L-450, ESS2L-400, ESS2L-350, ESS2L-315, ESS2L-250, ESS2L-200, ESS2L-160, ESS2L-125, ESS2L-100, ESS2H-450, ESS2H-400, ESS2H-350, ESS2H-315, ESS2H-250, ESS2H-200, ESS2H-160, ESS2H-125, ESS2H-100, ESS2B-450, ESS2B-400, ESS2B-350, ESS2B-315, ESS2B-250, ESS2B-200, ESS2B-160, ESS2B-125, ESS2B-100, ESS2J-450, ESS2J-400, ESS2J-350, ESS2J-315, ESS2J-250, ESS2J-200, ESS2J-160, ESS2J-125, ESS2J-100,ESS-1800

(2)Bussmann CBMG Series Fuse

The fuses are excellent DC performance, they could be well designed for solar inverter system, ESS PCSS and similar DC application

Standards / Agency information

• UL248-13

Typical applications

• Solar inverter system

• ESS converters

(4)Bussmann PV15M Series Fuse

The battery storage fuses are specifically designed to protect and isolate battery strings and converters

system at DC side.

Standards / Agency information

• UL (PV15M-XXX) UL248-19

• TUV (PV15MT-XXX) IEC60269-6

Feature

• These fuse links are capable of interrupting both low over currents and high short circuit currents.

• The fuses are excellent DC performance

• Typical applications

• PV strings and arrays

• Solar inverter system

• EV DC fast chargers and similar DC application

(4)Littelfuse PSX Series Fuse

Features/Benefits :

High dc voltage rating up to 1500 VDC

Dc interrupting rating is 250 kA 

 Extremely fast acting for high speed performance 

Low watt loss provides energy efficiency for BESS applications

Compact NH 1XL and 3XL sizes offer flexibility

Applications 

Battery energy storage systems (BESS) 

Power conversion systems 

Dc common bus systems 

Hybrid PV-BESS inverters 

Regenerative drives 

Industrial heaters and welding equipment 

Metal processing equipment

PSX1XLFL0080, PSX1XLUB0080, PSX1XLDB0080, PSX1XLFL0100, PSX1XLUB0100, PSX1XLDB0100, PSX1XLFL0125, PSX1XLUB0125, PSX1XLDB0125, PSX1XLFL0160, PSX1XLUB0160, PSX1XLDB0160, PSX1XLFL0200, PSX1XLUB0200, PSX1XLDB0200, PSX1XLFL0250, PSX1XLUB0250, PSX1XLDB0250, PSX1XLFL0280, PSX1XLUB0280, PSX1XLDB0280, PSX1XLFL0315, PSX1XLUB0315, PSX1XLDB0315, PSX1XLFL0350, PSX1XLUB0350, PSX1XLDB0350, PSX1XLFL0400, PSX1XLUB0400, PSX1XLDB0400, PSX1XLFL0450, PSX1XLUB0450, PSX1XLDB0450, PSX1XLFL0500, PSX1XLUB0500, PSX1XLDB0500, PSX1XLFL0550, PSX1XLUB0550, PSX1XLDB0550, PSX1XLFL0630, PSX1XLUB0630, PSX1XLDB0630, PSX3XLFL0450, PSX3XLUB0450, PSX3XLDB0450, PSX3XLFL0500, PSX3XLUB0500, PSX3XLDB0500, PSX3XLFL0550, PSX3XLUB0550, PSX3XLDB0550, PSX3XLFL0630, PSX3XLUB0630, PSX3XLDB0630, PSX3XLFL0700, PSX3XLUB0700, PSX3XLDB0700, PSX3XLFL0800, PSX3XLUB0800, PSX3XLDB0800, PSX3XLFL0900, PSX3XLUB0900, PSX3XLDB0900, PSX3XLFL1000, PSX3XLUB1000, PSX3XLDB1000, PSX3XLFL1100, PSX3XLUB1100, PSX3XLDB1100, PSX3XLFL1250, PSX3XLUB1250, PSX3XLDB1250, PSX3XLFL1400, PSX3XLUB1400, PSX3XLDB1400

(5)Mersen/Ferraz HelioProtection HP15NH Fuse

Voltage DC: 1500 VDC

Ampere Range(A): 50-500A

Speed/Characteristic: gPV

Product Size: NH1XL, NH2XL, NH3L

Operating temperature: -40°C - +70°C I.R (DC) 1XL/2XL 50kA@L/R=1ms 3L up to 400A 150kA@L/R=3ms 3L from 450A to 500A 200kA@L/R=3ms

7. 690VAC~1250VAC Fuse

(1)Bussmann 690Vac DIN 43653 Size 1/2/3

Square body DIN 43653 bolted tags high speed fuse

Standards / Agency information

• Designed and tested to IEC 60269 Part 4

• UL Recognized, JFHR2*, E125085

• CSA Class 53787, File 1422-30*

• CCC except where noted

• CE

Typical applications

• DC common bus

• DC drives

• Power converters/rectifiers

• Reduced voltage starters

Specifications

Description: Square body DIN 43 653 stud mount high speed fuse links, for the protection of DC common

bus, DC drives, power converters/rectifiers and reduced voltage starters.

Ratings:

Volts: 690Vac (IEC) / 700Vac (UL)

Amps: 40-2000A

IR: 200kA RMS Sym.

Operating Class: aR

(2)Bussmann 690Vac flush end size4

Square body, flush-end contact, high speed fuse

Standards / Agency information

• Designed and tested to IEC 60269 Part 4

• UL Recognized, JFHR2, E125085

• CE

Typical applications

• power rectifiers

Specifications

Description: High speed square body fuse links, for the protection of the power rectifier section of the equipment.

Ratings:

Volts: 690Vac

Amps: 1000-4000A

IR: 200kA RMS Sym.

Operating Class: aR

(3)Busmann 1000Vac DIN 43653 Size 1/2/3

Square body DIN 43653 bolted tags high speed fuse

Standards / Agency information

• Designed and tested to IEC 60269 Part 4

• UL Recognized, JFHR2, E125085 (only sizes 2 and 3)

• CCC (only size 3, 315-1100 A)

• CE

Typical applications

• DC common bus

• DC drives

• Power converters/rectifiers

• Reduced voltage starters

Specifications

Description: Square body DIN 43 653 stud mount high speed fuse links, for the protection of DC common

bus, DC drives, power converters/rectifiers and reduced voltage starters.

Ratings:

Volts: 1000Vac

Amps: 50-1400A

IR: 125kA RMS Sym.

Operating Class: aR

(4)Bussmann 1000Vac flush end size4

Square body, flush-end contact, high speed fuse

Standards / Agency information

• Designed and tested to IEC 60269 Part 4

• UL Recognized, JFHR2, E125085

• CE

Typical applications

• power rectifiers

Specifications

Description: High speed square body fuse links, for theprotection of the power rectifier section of the equipment.

Ratings:

Volts: 1000Vac

Amps: 1000-3200A

IR: 125kA RMS Sym.

Operating Class: aR

(5)Bussmann 1250Vac DIN 43653 Size 1/2/3

Square body DIN 43653 bolted tags high speed fuse

Standards / Agency information

• Designed and tested to IEC 60269 Part 4

• UL Recognized, JFHR2*, E125085

• CSA Class 53787, File 1422-30*

• CE

Typical applications

• DC common bus

• DC drives

• Power converters/rectifiers

• Reduced voltage starters

Specifications

Description: Square body DIN 43 653 stud mount high speed fuse links, for the protection of DC common

bus, DC drives, power converters/rectifiers and reduced voltage starters.

Ratings:

Volts: 1250Vac (IEC) / 1300Vac (UL)

Amps: 50-1400A

IR:100kA RMS Sym.

Operating Class: aR

(6)Bussmann 1250Vac flush end size4

Square body, flush-end contact, high speed fuse

Standards / Agency information

• Designed and tested to IEC 60269 Part 4

• UL Recognized, JFHR2, E125085

• CE

Typical applications

• power rectifiers

Specifications

Description: High speed square body fuse links, for the protection of the power rectifier section of the equipment.

Ratings:

Volts: 1250Vac .

Amps: 1400-2500A

IR: 125kA RMS Sym.

Operating Class: aR

8. Pyrofuse (Pyro Switch)

Pyrofuse is an advanced safety component designed for energy transition applications, known for its fast response, smart functionality, and reliability. This pyrotechnic switch activates quickly and securely in response to triggering events like over-current or collisions.

(1)Bussmann EBPS Series Pyrofuse

EBPS Series Pyrofuse include 2 types products:

• Single Triggering Pyro: can be triggered by external signal only

• Dual Triggering Pyro: Can be triggered either by external or by internal signal

Pyrofuse Typical application

• EV and charging station

• Energy storage system

• PV system

The latest design can act based on fault current without external signals, combining the functions of fuses, lightweight, and stable

Tesla Pyrofuse

9. DC Contactor 

(1)Bussmann EVC Series DC Contactor

Bussmann EVC Series DC Contactor, Rated Voltage from 500~1500VDC,current up to 400A. 

EVC-AS-400S-R, EVC-AT-400S-R, EVC-HS-400S-R, EVC-HT-400S-R, EVC-AB-40S, EVC-AB-60S, EVC-AS-300S, EVC-AS-400S, EVC-AB-150S, EVC-AB-200S, EVC-AB-20S, EVC-AB-250S, EVC-AB-100S

Power distribution design and protection requirements for on-board high-voltage systems

The main function of the vehicle mounted high-voltage distribution system is to quickly switch and protect against sudden overload or short circuit currents during use, without causing damage to the system. The traditional protection scheme is generally achieved by using DC contactors and fuses. Under normal working conditions, the system has two main contactors and one pre charging contactor. The main contactor is usually selected as a 250A~300A product, while the pre charging contactor is selected as a 50A product. When working, the pre charging contactor and the main negative contactor are first closed to power the circuit. The purpose of the pre charging resistor in the pre charging circuit is to protect the motor from the impact of instantaneous high current. When the bus capacitor is charged to a certain extent, the main positive contactor closes and the pre charging contactor opens, and the circuit is powered on normally and within the safety control protection range. If the system malfunctions, when a small overload current occurs (currently the data provided by the vehicle factory is below 2000A), due to the inverse time characteristic of the fuse, the action time may be too long or not act. Therefore, the DC contactor is mainly used to cut off. Therefore, the DC contactor also needs to have a certain overload breaking ability and can still make and break normally afterwards. When a short circuit current occurs (currently the maximum data provided by the vehicle factory is about 15KA), due to the inherent characteristics of the DC contactor product, it cannot be reliably broken. Therefore, the fuse needs to quickly respond to cut off the circuit for protection, and the action time is within 5ms. At the same time, during this period, the DC contactor cannot have fusion welding.