Eaton S506-3.15-R 3.15 A 250 Vac Time-Delay Glass Tube Fuse

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pEaton S506-3.15-R — 3.15 A, 250 V, time-delay glass cartridge fuse, 35 A at 250 Vac, 50 Hz interrupting./p

Eaton S506-3.15-R 3.15 A 250 Vac Time-Delay Glass Tube Fuse belongs to the Eaton range. It uses a time-delay element, in a glass body.

Parameter	Rating
Parameter	Value
Orderable part number	S506-3.15-R (BK- prefix = 100 pcs carton, BK1- = 1,000 pcs polybag)
Agency	cURus (E19180, JDYX2); SEMKO; VDE; BSI; IMQ; PSE (JET); KC; CCC
Interrupting rating	35 A at 250 Vac, 50 Hz
Melting I2t (typical)	96.4 A2s
Typical cold resistance	0.0185 Ohm
Time-delay class	T (time-lag)
Typical drop	68.5 mV at rated current
Power dissipation	0.22 W
Body / package	5 x 20 mm glass tube, nickel-plated brass end caps
Design standard	IEC 60127-1 and 60127-2
Voltage	250 Vac
In (rated)	3.15 A

Interrupting capability is 35 A at 250 Vac, 50 Hz — confirm the circuit's prospective fault current stays below this.
Time-delay element rides through motor starting and capacitive inrush without nuisance opening.
Startup surges of several times rated current are tolerated for a short window.
Glass body lets you inspect the element after a fault.
Best kept for lower fault-current circuits where visual diagnosis matters.

Typical places this fuse turns up:

Order code S506-3.15-R from Eaton, supplied in 5 x 20 mm glass tube, nickel-plated brass end caps. Confirm the exact suffix before release.

Is the S506-3.15-R fast-acting or time-delay?

It is time-delay. It tolerates short inrush surges.

Can the S506-3.15-R be used on a higher fault-current circuit?

No — its interrupting rating is 35 A at 250 Vac, 50 Hz. Choose a part whose breaking capacity exceeds the prospective fault current.

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