BEP MARINCO 771-S-EZ - User Manual

EZ Mount Selector Battery Switch
771-S-EZ 400A EZ Mount Selector (Retail Packed)
771-S-EZ-B (Bulk Packed)
www.bepmarine.com | www.mastervolt.com | www.marinco.com
Features & Benefits:
•Easiest surface mounting, saves installation time and cost
•Front access studs match Pro Installer Busbar range intercon-
nection height for direct linking and most compact mounting
footprint
•Actuator assembly can be  tted at any 90 degree angle for
optimal cabling  exibility
•Removable knob for isolation/safety
•Includes back cover and three side panels for security and
cable protection
•Designed to withstand harsh marine environments
•High temperature reinforced plastics
Specifications:
•Continuousrating:400A*
•Intermittentrating(5minutes):600A*
•Crankingrating(10seconds):1500A*
•Connectionstudsize:M10(3/8”)
•12-48VDC
•IP66–protectionfrompowerfulwaterjets
•Ignitionprotected
•IndependentlytestedtomeetUL1107standards
•CE
*Electricalratingsachievedusingcablesize120mm²
5 YEAR WARRANTY
Installation Instructions: IMPORTANT!
Read before installing
•It is recommended that electrical terminations and connections
are carried out by a marine electrical technician.
•These battery switches are for isolation purposes and are not
designed for switching under load.
•Ensure there are no circuits with high inductive loads directly
connected to the switch in order to prevent any sudden in-rush
of current which may cause damage to the switch.
•Although specially selected chemical resistant materials have
been used, we recommend that for maximum product life only
plastic safe corrosion inhibiting sprays are used.
•Ensureallcablesaresizedcorrectlyfortheloadstheycarry.
Please refer to www.bepmarine.com to calculate correct cable
sizes.
•Ensure all electrical connections are correctly tightened to
prevent any damage to the battery switch.
•WARNING:Donotswitchbatteryswitchtooffpositionwhile
the engine is running.
Plastic safe
Petroleum
based
solvents
1 2
Aseasytomountas1,2,3,theserevolutionarybatteryswitches
allow you to wire from the front.
1. Fit base
2.Addwiring
3.Cliponactuator
With their shared interconnection height, EZ-Mount Selector
batteryswitches“cluster”directlywiththeProInstallerBusbar
Range, resulting in the fastest, most compact installations. All
ratings, footprints and construction of the EZ-Mount Selector
switches match the high quality of our standard switches.
1 2
Loads
Engine
Loads
Battery
2
+
-
+
-
Battery
1
DVSR
Negative
Bus
Battery
1
Fuse
Battery
2 Fuse
Example System: NOTE -This
diagram is a guide only showing
Selector connections and is not
intended as a full electrical systems
wiring diagram.
DVSR (710-140A)
provides automatic
battery charging
of second bank
Note: Battery 1 and 2
designation when viewing
EZ mount base with
Actuator removed

Summary

EZ Mount Selector Battery Switch Overview

Features and Benefits

Highlights ease of mounting, cabling flexibility, durability, and high-quality construction for marine environments.

Technical Specifications

Details continuous, intermittent, and cranking ratings, connection stud size, voltage, IP rating, and certifications.

Installation and Operation Guide

Important Installation Instructions

Read before installing. Electrical terminations by technician recommended. Not for switching under load.

EZ Mount Installation (Surface Mount Only)

Step-by-step guide for mounting the switch base, connecting cables, and securing the actuator.

Actuator Removal and Replacement

Procedure for removing and replacing the actuator, ensuring the switch is in the 'OFF' position.

Switch Operation Check

Verification steps to confirm correct functionality in different switch positions.

Product Dimensions

Provides physical measurements for surface and rear panel mounting of the switch.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Marinco BEP Products EZ Mount Selector Battery Switch is a robust and versatile device designed for isolating and managing battery power in marine environments. It is available in two retail packages: the 771-S-EZ 400A EZ Mount Selector (Retail Packed) and the 771-S-EZ-B (Bulk Packed). This switch is engineered for ease of installation and integration with other Pro Installer Busbar Range components, offering a compact and efficient solution for electrical systems.

Function Description:

The primary function of the EZ Mount Selector Battery Switch is to provide a means of isolating and selecting battery banks. It allows users to connect to Battery 1, Battery 2, or both (1&2), and to completely disconnect power (OFF). This capability is crucial for maintenance, safety, and managing power distribution from multiple battery sources. The switch is designed for surface mounting, allowing for front access to wiring, which simplifies installation and maintenance. It is intended for isolation purposes and should not be used for switching under load, meaning the engine or other high-current devices should be off before changing the switch position. The device also features a removable knob for enhanced security and safety, preventing accidental or unauthorized operation.

Important Technical Specifications:

• Continuous Rating: 400A
• Intermittent Rating (5 minutes): 600A
• Cranking Rating (10 seconds): 1500A
• Connection Stud Size: M10 (3/8")
• Voltage Range: 12-48V DC
• Environmental Protection: IP66 (protection from powerful water jets)
• Ignition Protected: Yes
• Compliance: Independently tested to meet UL1107 standards, CE certified.
• Material: High temperature reinforced plastics.
• Electrical Ratings: Achieved using cable size 120mm².
• Warranty: 5-year warranty.

Usage Features:

• Easy Surface Mounting: The design allows for quick installation in three steps: fit base, add wiring, and clip on actuator. This front-access wiring significantly reduces installation time and cost.
• Compact Integration: With a shared interconnection height, the EZ-Mount Selector battery switches "cluster" directly with the Pro Installer Busbar Range, facilitating fast and compact installations.
• Flexible Actuator Positioning: The actuator assembly can be fitted at any 90-degree angle (0, 90, 180, or 270 degrees) to optimize cabling flexibility and suit various installation layouts.
• Removable Knob: The knob can be removed for isolation and safety, preventing unintended operation.
• Cable Protection: Includes a back cover and three side panels for enhanced security and protection of cables.
• Durability: Designed to withstand harsh marine environments, ensuring long-term reliability.
• Visual Indicators: The actuator clearly indicates the selected position (OFF, 1, 2, 1&2). The locking mechanism is also visually indicated as "UNLOCKED" or "LOCKED."

Maintenance Features:

• Recommended Installation: Electrical terminations and connections should be carried out by a marine electrical technician to ensure proper and safe installation.
• Load Management: It is critical not to switch the battery switch under load. Users must ensure that there are no circuits with high inductive loads directly connected to the switch to prevent sudden in-rush of current that could cause damage. The warning explicitly states: "Do not switch battery switch to off position while the engine is running."
• Cleaning and Protection: While specially selected chemical-resistant materials are used, it is recommended to use only plastic-safe, corrosion-inhibiting sprays for maximum product life. Petroleum-based solvents should be avoided.
• Cable Sizing: All cables must be correctly sized for the loads they carry. Users are advised to refer to www.bepmarine.com for cable size calculations.
• Connection Tightness: All electrical connections must be correctly tightened to prevent damage to the battery switch. Stud nuts should be tightened to 13.5 Nm (10 lbf).
• Actuator Removal and Replacement: The actuator should always be removed and replaced with the knob in the "OFF" position. This involves undoing light grey fastening screws by rotating 45 degrees anticlockwise. When replacing, ensure both the switch base and actuator are in their "OFF" positions and the fastening screws are locked.
• Regular Checks: Before final use, check switch operation to confirm that loads have no voltage in "OFF" position, voltage from battery 1 in "1 ON" position, voltage from battery 2 in "2 ON" position, and all connections are paralleled in "1&2" position. Ensure spring washers are fitted beneath nuts for secure connections.

BEP MARINCO 771-S-EZ Specifications

General

Brand	BEP
Model	MARINCO 771-S-EZ
Category	Switch
Language	English