High Tech Parts Mini Relay – 12V – 4-Pin (PR48)

Description

High Tech Parts · Part no. PR48

High Tech Parts PR48 is a 12V mini changeover relay with a built-in fuse and a resistor across the coil, rated at 40 amps. Its pins are 30, 85, 86, 87 and 87a, so it can move a heavy feed between two circuits while the fuse on the relay itself guards the switched side.

Good to know

• Why a relay with its own fuse? It puts the protection right at the relay, handy on an add-on circuit such as spotlights where there is no spare fuse box position; check the fuse value suits your load.
• How many pins does it have? The title says 4-pin, but the maker lists five pins including 87a, so compare it with the base or holder you are using before buying.
• Who should fit it? The maker advises a qualified auto electrician, and with a changeover relay it matters which output, 87 or 87a, carries the load when the relay is off.

Which one?

Without the built-in fuse, the PR46 is a 40A mini changeover with a resistor across the coil, and the PR44 is the plain 40A changeover.

Key features

• 12V mini changeover relay
• Built-in fuse
• Resistor across the coil
• Pins 30, 85, 86, 87, 87a
• 40 amp rating

Specification