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Blue Sea Systems 9012 L Solenoid - 12/24V DC 250A User Manual

Installation, L-series solenoid switch with coil economizer, Marine electrical products

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Marine Electrical Products

L-Series Solenoid Switch

with Coil Economizer

Features

• Hermetically sealed contacts • Vaporproof • Function as a remote battery switch

• Ignition protected - safe for installation aboard gasoline powered boats

• Pulse circuit requires low current draw when contact is closed

• UL Recognized - UL 508 Industrial Control Equipment

• Meets SAE J1171 - external ignition protection requirements

• Activated by an ON-OFF switch mounted anywhere

• Used as a manual battery paralleling switch • CE marked for EC applications

• Integrated coil control minimizes heating and amperage draw

Specifications

Coil Circuit:

Input Voltage:

9 to 36 Volts Maximum

Power Consumption:

Inrush, 130ms:

3.8 Amperes@12-36 VDC

Holding 12 Volts:

0.13 Amperes@12 VDC

0.07 Amperes@24 VDC

Main Power Contacts:

Voltage Rating

60 Volts DC

Stud Terminal Size

M8 (accepts 5/16” terminals)

Contact Form

SPST-NO

Inrush Rating: 0.25sec. (10 repeats)*

2000 Amperes

Mechanical Life

1 Million Cycles

Make Current@10,000 Cycles:

2000 Amperes@28V

Break Current@10,000 Cycles:

2000 Amperes@28V

Switch Ratings

The issue of switch ratings for engine starting is a tricky one. The reason

is that Underwriter’s Laboratories (UL), the only agency that establishes

standards for marine battery switch ratings, does not establish a standard

appropriate to engine starting situations. There are two ratings in the UL

marine battery switch standard, Intermittent and Continuous.

Intermittent is a 5 minute rating and is based on temperature rise of various

sections of the switch as the rated current is applied over a 5 minute period.

The Continuous rating is the same, but the time period is 1 hour.

As these standards demonstrate, there are three variables involved in

rating battery switches: time, current and temperature. For any given switch

the relationship of the variables is TEMPERATURE = TIME x CURRENT.

Clearly, neither of these ratings is applicable to engine starting situations

where the current draw is very high but the time period is very short,

typically 10 seconds or less. You will see some manufacturers rating their

switches at very high amperages, but close inspection will show that they

either fail to specify the time period or the time period is very short.

To correct this problem Blue Sea Systems has created an additional

standard to which its battery switches are rated. This standard is called the

Engine Start Standard and consists of ten 10-second cycles with a 2 second

rest between each cycle. The first .25 seconds of the cycle is the Inrush

Current and the last 9.75 seconds of the cycle is the Cranking Current. The

Engine Start Standard is designed to represent a worst case engine starting

event in which the engine is cranked for 10 seconds, the ignition switched

off for 2 seconds to rest the battery and then repeated another 9 times.

Blue Sea Systems Inc.

Phone (360) 738-8230

425 Sequoia Drive

Fax (360) 734-4195

Bellingham, WA 98226 USA

E-mail [email protected]

www.bluesea.com

Guarantee

Any Blue Sea Systems product with which a customer is not satisfied may

be returned for a refund or replacement at any time.

8703 Rev. 010

Wire Size

Cranking Rating

9.75 sec. (10 repeats)*

Intermittent Rating

5 min. (UL 1107)

Continuous Rating

(UL 1107)

1/0

500A

275A

250A

2/0

500A

400A

300A

2x2/0

800A

600A

450A

* Blue Sea Systems Engine Starting Standard

PN 9012

2.120"

53.85mm

MOUNTING HOLE

FOR #10 SCREW

3.170"

80.52mm

2.691"

68.35mm

2.630"

66.80mm 2.300"

58.42mm

.500"

12.7mm
2.860"

72.64mm

Installation

Electrical Connections

1 Disconnect the positive battery connection before beginning the

installation. The wiring diagram is general in nature and is not meant to

be a guide for the wiring of any specific vessel. There are a wide range of

wiring configurations possible. Consult your marine electrical

professional for the wiring system applicable to your boat.

2 Make electrical connections based on the wiring diagram. Consult a wire

sizing chart to determine the appropriate wire sizes.

Main Disconnect and Starting Solenoids

High amperage electronic solenoid switches allow heavy cable runs to be

shortened dramatically by eliminating the need to route cables for

convenient operator access for manual switching operations. Shortened

cable runs save labor and material costs, reduce weight, conserve space,

reduce exposure to short circuits, and deliver higher circuit voltages.

Solenoid switches also allow high amperage switching operations to be

automated, allowing high amperage circuits to be completely disconnected

when not in use.

These switches can be used for:

1. Starting Circuit Disconnects

2. Main Distribution Panel Disconnects

Electrical Connection Illustration

This schematic is to illustrate the general placement of the switch in a

circuit. It is not meant to provide detailed wiring instructions for any

particular boat.

Battery 1

Battery 2

MINI SWITCH

9005 OR 9006

FOR EMERGENCY

CROSS CONNECT

Alternator

Starter

Engine

OUT TO

DC LOADS

IGNITION SWITCH

"START" POSTION

OR

MANUAL SPST SWITCH

DC HOUSE

DISTRIBUTION PANEL

12�VOLT�DC�DISTRI

BUTION

1

3

2

FROM DC

POSITIVE

TO DC

NEGATIVE

Wiring Diagram

PN 9012 L-Series Solenoid Switch with Coil Economizer

PN 9012

L-Series

Solenoid Switch

BUSSMANN SERIES 187

CIRCUIT BREAKER

A1

A2

BLACK WIRE

RED WIRE