Littelfuse.com/PSX

© 2022 Littelfuse, Inc.

Rev: 041122

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PSX SERIES HIGH-SPEED SQUARE BODY

Specifications

Voltage Rating

Dc: 1500 V

Amperage Rating

80 A–1400 A

Interrupting Rating

Dc: 250 kA

Time Constant

1XL: </= 3 ms

3XL: </= 5 ms

Microswitch

Yes

Mounting

Bolted-blade style, DIN-blade style,

Metric flush-end style

Material

Body: ceramic

Contacts: plated copper (bladed)

plated brass (flush end)

Approvals

cURus Recognized (File: E71611)

Applicable Standards

UL 248-13, IEC 60269-7

Environmental

RoHS Compliant, REACH

Operating Temperature

-55 °C to +125 °C

Storage Temperature

Up to +35 °C with relative humidity <65 %

Country of Origin

Mexico

Ordering Part Number

PSX 3XL UB 1400 X

Termination

UB = bolted blade

DB = DIN blade

FL = flush-metric

Case Size

1XL, 3XL

Series

Packing Quantity

X = (1 pc/box)

Amperage

Catalog Number

SERIES CASE

SIZE TERMINATION AMPERAGE

CATALOG

NUMBER

ORDERING

PART NUMBER

PSX

3XL

UB

1400

PSX3XLUB1400 PSX3XLUB1400X

Recommended Accessories

Microswitch: MSXL2000C

Web Resources

Download technical documents: Littelfuse.com/PSX

Battery Protection Fuses • 1500 V Dc Class aBat • 80 A–1400 A

Description

Littelfuse PSX series 1500 V dc high-speed square body

fuses are specially designed to protect battery energy

storage systems (BESS), photovoltaic inverters, and many

dc applications such as dc common bus systems, larger

industrial regenerative drives, rectifiers and metal processing

equipment.

The PSX series fuses are extremely fast-acting, offering

high-speed performance up to 1500 V dc, ranging from

80 A to 1400 A in the smallest NH XL package sizes. The

PSX series is available with multiple mounting terminations

including flush-end, DIN, and bolted-blade styles. Visual

blown fuse indication is standard on all fuses and optional

micro-switch is available for external indication.

The PSX series is certified to UL248-13 and designed to

meet IEC 60269-7 (Class aBat) battery protection fuse

standard.

Features/Benefits



High dc voltage rating up to 1500 V dc



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 (BESSs)



Power conversion systems



Dc common bus systems



Hybrid PV-BESS inverters



Regenerative drives



Industrial heaters and welding equipment



Metal processing equipment