SCHURTER FST 5×20 mm fuse-link, time-lag T, 250 V AC, 0.05–20 A, glass

SCHURTER FST 5×20 is a glass miniature fuse to IEC 60127-2 with time-lag T characteristic and low breaking capacity. Rated voltage 250 V AC, currents 0.05–20 A. It fits a 5×20 holder or clip and is compatible with SCHURTER FPG and FPG1 holders.

FST is used where capacitive inrush currents occur (power supplies, small transformers) and the high breaking capacity of ceramic fuses is not needed. Breaking capacity depends on the rating, from 35 to 200 A at 250 V AC. The order number 0034.xxxx is tied to the current: e.g. 0034.3104 for 0.05 A, 0034.3125 for 6.3 A. The rating is marked on the end cap.

Key features:

• IEC 60127-2, T (time-lag) characteristic, withstands inrush currents
• Glass tube, low breaking capacity 35–200 A
• Current range 0.05–20 A at 250 V AC
• Rating marked on the end cap, convenient for service and spares
• Compatible with SCHURTER FPG, FPG1 holders and 5×20 clips

Specifications:

• Standard: IEC 60127-2
• Size: 5 × 20 mm
• Characteristic: time-lag T, low breaking capacity (L)
• Voltage: 250 V AC
• Currents: 0.05–20 A, steps per datasheet
• Breaking capacity: 35–200 A depending on rating
• Material: glass tube, metal end caps
• Mounting: holder or clip
• Example order numbers: 0034.3104 = 0.05 A; 0034.3125 = 6.3 A

Application: Secondary protection of power supplies and control boards, spare parts for repair of industrial and consumer electronics, laboratory and measuring instruments.

Scope of supply: 1 fuse-link in a bag with rating label; packs of 10 contain one rating only.

Before ordering: Before ordering, specify the rated current. Not for primary mains protection where the prospective short-circuit current exceeds the fuse breaking capacity; do not confuse with high-breaking-capacity ceramic fuses or F/FF characteristics.