Mersen Protistor® PC70UD13C63PA (A301185) Square‑Body High‑Speed Fuse-Link — 63A, 1250 V AC (IEC) / 1300 V AC (UL), Size 70, aR Semiconductor Protection, Striker Indication, Plain Blade Terminals — Pack of 3

Product overview The Mersen Protistor® PC70UD13C63PA (item A301185) is a square‑body, ultra‑fast acting fuse‑link engineered for semiconductor protection in high‑voltage power conversion equipment. Designed for aR (semiconductor) protection, this Size 70 fuse‑link provides high interrupting capability and low I²t to protect diodes, thyristors, GTOs and IGBTs. Supplied in packs of three (3).

Key specifications

• Manufacturer / Brand: Mersen (Protistor®)
• Part / Catalogue number: PC70UD13C63PA / A301185
• Product family: Protistor® Size 70 — Square‑body high‑speed fuse‑link
• Application: Semiconductor protection — power converters, rectifiers, inverters, industrial power electronics
• Amperage rating: 63 A
• Voltage rating: 1250 V AC (IEC) / 1300 V AC (UL) — AC rating specified; use IEC/UL rating as applicable
• Utilization category / Characteristic: aR (accompanied semiconductor protection)
• Fuse size: Size 70 (listed as Fuse Size 72 in dataset; Size 70 family, square‑body) — compact square‑body form factor
• Mounting: Clip mount (plain blade terminals)
• Connection / Terminal: Plain blades, silver‑plated copper terminals (all contact surfaces silver plated)
• Indication system: Yes — Striker (top striker indicator for visual/low‑voltage trip indication; can operate field‑mountable microswitch)
• Clearing I²t at rated voltage: 1680 A²s
• Melting I²t: 210 A²s
• Breaking capacity / AC Max I.R. (I1): 126 kA
• Construction: Die‑cut pure silver element embedded in solidified sand; ceramic body / insulating material; non‑magnetic hardware
• Power dissipation at rated current: 26 W
• Product dimensions: Width 39.8 mm × Length 123.4 mm × Height 49.5 mm
• Product weight: 0.364 kg (each)
• Sell pack quantity / Packaging: Pack of 3 (3 EA) — pack weight 1.092 kg; pack dimensions 143 × 140 × 65 mm
• Compliance & benefits: Designed for worldwide mounting styles, high interrupting rating, low I²t for superior semiconductor protection

Features & benefits

• Ultra‑fast aR characteristic optimized to protect sensitive semiconductor devices with minimal I²t.
• High dielectric AC ratings (1250 IEC / 1300 UL) support high‑voltage converter topologies.
• High breaking capacity (126 kA) for robust fault interruption in high‑energy systems.
• Silver die‑cut element and solidified sand construction stabilize arcing and reduce I²t.
• Striker indication provides immediate visual status and interfaces with switchgear monitoring.

Installation & safety notes

• Verify clip mounting compatibility for Protistor® Size 70 and ensure plain blade terminal clearance.
• Use provided clearing and melting I²t values for coordination and thermal/short‑circuit calculations.
• Apply IEC or UL voltage rating according to system standard: 1250 V AC (IEC) or 1300 V AC (UL).
• For switching/monitoring with the striker indication, fit appropriate microswitch accessory per Mersen guidelines.
• Refer to the official Mersen datasheet for full time‑current curves, detailed installation instructions and certification information.