Chandlery World: Isolators

Isolators

Catalogue > Power & Electrical > Isolators

Sure Power Line Battery Isolators

Battery Sensed Isolator.
Modern Voltage Regulators fall into two groups: Battery Sensed Regulators, which have their sensing point on the battery. Machine Sensed Regulators, which have their sensing point on or in the alternator. It is important to determine the type of sensing being used;
- in order to avoid 0.8 voltage drop in the charging system.
- to determine the type of isolator to be installed.
Sure Power Machine Sensed Isolators were specifically designed with a compensation diode for the European market and properly installed will not suffer from 0.8 voltage drop.
The Sure Power range of battery isolators, known to us better as blocking diodes. All units suitable for up to 36V systems. Negative earth.
Sure Power Isolators can be used for single or twin engine (1 or 2 alternator) installations.

SURE POWER LINE BATTERY ISOLATOR 70 AMP - 2 BATTERY / 1 ALTERNATOR
050BIS000003 Specifications

Price: £36.97 (Including: VAT)

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SURE POWER LINE BATTERY ISOLATOR 70 AMP - 3 BATTERY / 1 ALTERNATOR
050BIS000001 Specifications

Price: £54.41 (Including: VAT)

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SURE POWER LINE BATTERY ISOLATOR 120 AMP - 3 BATTERY / 1 ALTERNATOR
050BIS000004 Specifications

Price: £90.59 (Including: VAT)

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Zinc Saver II Galvanic Isolators

Interrupts galvanic circuit with other boats and the dock when your boat is plugged into a shore power system. Maintains AC safety ground and solves most common cause of galvanic corrosion. Protects against zinc loss. Tested to ne ABYC A-28 recommendations for galvanic isolators. The Zinc Saver II available in two versions, the standard version without capacitor and a version with a capacitor. There are those who believe the addition of this capacitor provides additional protection from stray AC current in the galvanic system. While the ABYC recommendation does not require a capacitor the specification allows for it.

Dissimilar metals (dissimilar meaning they have a different position on the Noble Scale) attached together in an electrolyte (current carrying liquid or paste) from a battery with voltage and current. The metal nearer the magnesium end of the Noble Scale is more active and will erode, protecting the metal toward the gold side of the Noble Scale. The further apart on the scale, the higher the voltage difference and activity. Example: flashlight battery - two common metals and an electrolyte paste that produce 1.5 volts when connected through a flashlight bulb. Note: the metals we use on boats are a mixture of metals. To make a battery just add water.

When the relative voltage of immersed metals is raised 250 millivolts or more above its normal voltage that metal will not corrode. An immersed zinc attached to all our immersed fittings, if large enough, will raise the relative voltage, sacrificing itself to protect these immersed fittings. Similarly, an outboard or outdrive will sacrifice itself protecting bronze fittings, an immersed attached zinc would protect both. This zinc actually forms a more active battery than we had originally, but the damage is confined to the zinc itself.

ZINC SAVER II GALVANIC ISOLATOR 30 AMP
079GLV000001 Larger Image

Price: £90.46 (Including: VAT)

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ZINC SAVER II GALVONIC ISOLATOR 30 AMP CAPACITOR
079GLV000003 Larger Image

Price: £112.27 (Including: VAT)

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ZINC SAVER II GALVANIC ISOLATOR 50 AMP
079GLV000002 Larger Image

Price: £121.08 (Including: VAT)

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ZINC SAVER II GALVANIC ISOLATOR 50 AMP CAPACITOR
079GLV000004 Larger Image

Price: £152.89 (Including: VAT)

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1 ALTERNATOR 2 BATTERY ISOLATOR DIODE 160 AMP 050BIS8-30526
For switching and distributing the appropriate charge from engine alternator(s) to boats battery system and preventing discharge from one battery to another. Constructed of anodised aluminium heat sink and resin filled. Unlike mechanically operated switches it distributes charge correctly regardless of size and condition of batteries.

Price: £92.83 (Including: VAT)

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Catalogue > Power & Electrical > Isolators

All Trademarks acknowledged as the property of their respective owners. Product information, specification and prices as supplied by the Manufacturers and subject to change without prior notification. Images for illustrative purposes only. E. & O.E.

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Nateby Crossing Lane, Nateby, Garstang, Lancashire, PR3 0JJ, UK
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