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Product Specifications:
| Item | Semiconductor Fuse |
| Ac Max I.r./breaking Capacity I1 | 40 kA |
| Ac Voltage | 700V AC |
| Ac/dc | AC/DC |
| Amps | 500A |
| Body Material | Fiberglass |
| Body Style | Bolt On |
| Body/insulating Material | GMG |
| Connection/terminal Material | Copper |
| Connection/terminal Type | Blade |
| Dc Voltage Rating | 700V DC |
| Diameter | 50.8 mm |
| Element | Single |
| Equivalent Brand And Series | A70Qs, Bussman Fwp, Littlefuse L70Qs, Mersen A70P Series |
| Equivalent Series | A70P, A70Qs, Fwp, L70Qs |
| Finish | Tin Plated |
| Fits Fuse Block Style | Nonrejection |
| Frequency | 50/60 Hz |
| Fuse Size | 5 1/16" x 2" |
| Indication System | Yes |
| Indication System Type | Il Indicator |
| Interrupt Rating | 100 kA at 700V DC, 200 kA at 700V AC |
| Length | 129.3 mm |
| Mounting | Bolted |
| Product Datasheet | mersen-ferraz-a70qs100-4.pdf |
| Product Group | Semiconductor Protection Fuses |
| Rated Voltage Ac Ul | 700V |
| Rated Voltage Dc Ul | 700V |
| Rohs Compliant | Yes |
| Series | A70QS Series |
| Speed | Fast Acting |
| Speed Characteristic | High Speed |
| Speed Type | High Speed |
| Standards | Ce, Ul Recognized, Guide Jfhr2, File 60314, Csa Certified Lr12636 |
| Visual Indication | Indicating |
Shipping Info:
| Ship weight (kg) | 0.09 |
| Ship height (cm) | 8.41 |
| Ship length (cm) | 34.29 |
| Ship width (cm) | 13.18 |
| Country of Origin | MX |
Product Details:
- With IL Indicator
Documentation:
Product Variants
| Product | Model | Amps | Diameter | Visual Indication | Body Material | Speed Type | Fuse Size | Dc Voltage Rating | Speed | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
A70QS100-4 | 100A | 25.4 mm | - | GMG | High Speed | - | - | - | €154.68 | |
![]() |
A70QS100-4IL | 100A | 25.4 mm | Indicating | Fiberglass | High Speed | 4 3/8" x 1" | 700V DC | Fast Acting | €219.20 | |
![]() |
A70QS125-4 | 125A | 31 mm | Non Indicating | Fiberglass | High Speed | 4 3/8" x 1 1/4" | 700V DC | Fast Acting | €199.35 | |
![]() |
A70QS125-4IL | 125A | 31 mm | Indicating | Fiberglass | High Speed | 4 3/8" x 1 1/4" | 700V DC | Fast Acting | €243.21 | |
![]() |
A70QS125-4K | 125A | 31 mm | Non Indicating | Fiberglass | High Speed | 5 1/16" x 1 1/4" | 700V DC | Fast Acting | €214.69 | |
![]() |
A70QS125-4KIL | 125A | 31 mm | - | GMG | High Speed | - | - | - | €349.34 | |
![]() |
A70QS150-4 | 150A | 31 mm | Non Indicating | Fiberglass | High Speed | 4 3/8" x 1 1/4" | 700V DC | Fast Acting | €206.42 |
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Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
MERSEN FERRAZ A70QS500-4IL Semiconductor, High Speed, 700V, 500A, aR Class, Type 4
€581.24 /unit





