VE Transfer Switch

Introduction

The VE Transfer Switch is a device used to switch between two AC
power sources. It is available in two models, 5kVA and 10kVA.

Operation

The VE Transfer Switch automatically switches between two AC
power sources, such as shore power and generator power, when one
source fails or becomes unstable. It ensures that a stable power
supply is always available.

Installation

WARNING: Make sure that all AC power sources are switched off or
disconnected before and during installation. Incorrect connections
can cause dangerous overheating of the terminals.

The VE Transfer Switch comes with connection diagrams for both
the 5kVA and 10kVA models. When used with a MultiPlus and a Digital
Multi Control panel (DMC), additional connections are required. The
transfer switch is ready for use straight after installation, but
in some specific circumstances, an adjustment of the switch on
delay of input 1 may be needed. Make the delay time adjustment
using a small flat-blade screwdriver.

Technical Specifications

	5kVA (COS 0)	10kVA (COS 0)
Input voltage range	200 – 250Vac, single-phase	200 – 250Vac, single-phase
Input current (max)	20A	40A
Output current (max)	20A	40A
Power rating	1.3kW	8kW
Standby power consumption	6VA	6VA
Switching time (typical)	10 – 20ms	5 – 20ms
Switch-on delay time (adjustable)	Approximately 10s	Approximately 10s
Generator input	200 – 240Vac, 20A, cos phi = 1	Not included – installation dependent
Dimensions (mm)	175 x 215 x 120	175 x 215 x 120
Weight (kg)	1.85	1.65
Protection rating	IP 54 RAL 7035	IP 54 RAL 7035

Electrical Diagram

The VE Transfer Switch comes with electrical diagrams for both
the 5kVA and 10kVA models.

Dimensions

The VE Transfer Switch is available in two models with the
following dimensions:

5kVA: 175 x 215 x 120 mm
10kVA: 175 x 215 x 120 mm

Usage

Make sure all AC power sources are switched off or disconnected
before installation.
Refer to the connection diagram for the appropriate model and
follow the instructions carefully to connect the VE Transfer Switch
to the AC power sources.
If using the transfer switch with a MultiPlus and a Digital
Multi Control panel (DMC), additional connections are required.
Refer to the manual for detailed instructions.
After installation, the transfer switch is ready for use.
However, in some specific circumstances, an adjustment of the
switch on delay of input 1 may be needed. Use a small flat-blade
screwdriver to make the delay time adjustment if necessary.

View Fullscreen

ENGLISH
VE Transfer Switch
5kVA, 10kVA
Rev 00 – 12/2022
This manual is also available in HTML5.

VE Transfer Switch
Table of Contents
1. Introduction …………………………………………………………………………………………………………… 1 2. Operation ……………………………………………………………………………………………………………… 2 3. Installation …………………………………………………………………………………………………………….. 3 4. Technical specifications ……………………………………………………………………………………………… 5 5. Electrical diagram …………………………………………………………………………………………………….. 6 6. Dimensions ……………………………………………………………………………………………………………. 7

VE Transfer Switch
1. Introduction
The VE Transfer Switch is designed to take over automatic switching between different power sources. For example, between a generator and the shore, between an inverter and a generator, or between an inverter and the shore. It has two inputs and one output and automatically transfers the available AC power from one of the inputs to the output. It can be used with any Victron Energy inverter, providing the inverter power rating does not exceed the transfer switch power rating. The transfer switch can also be used to allow a MultiPlus inverter/charger to connect to two different AC sources, like shore power and a generator, instead of only being able to connect to a single AC source.

Page 1

Introduction

VE Transfer Switch
2. Operation
The transfer switch is situated between a generator or shore power and the inverter. If the voltage level or the frequency of the generator or the shore power varies on input 1, the transfer switch will switch to the inverter on input 2. Once the generator or the shore supply has remained continuously stable, the transfer will switch back to input 1 with a delay of approximately 10 seconds. This way, the appliances that are connected to the output are protected against damage from voltage drops. During transfer between one of the power sources from input 1 to input 2 or vice versa, the appliances are not supplied with power for a short time. Because of this, computers, electronic devices etc., that are connected to this group might lose data. The transfer switch can be used with any type of inverter, but the best results, however, are obtained with an inverter from Victron Energy.

Page 2

Operation

VE Transfer Switch
3. Installation
WARNING: Make sure that all AC power sources are switched off or disconnected before and during installation.
Mounting: · Install the transfer switch in a dry and well-ventilated area. · To gain access to the transfer switch, remove the four screws in the front panel. · The transfer switch can be wall-mounted by using the four holes in the rear of the casing. Electrical connections: · The input cables (mains/generator) and the inverter (or inverter/charger) and the output cable (to the appliances) should be
connected according to the connection diagram as shown below. · The input and output cables must have the correct core thickness for a safe installation. Undersized cables can cause
overheating of the cables. The maximum cable core thickness is 6mm². · Use the provided cable glands to pass the input and output cables through the casing. · Tighten all connections with a nominal torque moment of 1.2Nm. This is to limit transition resistance as far as possible. Loose
connections can cause dangerous overheating of the terminals.

Connection diagram VE Transfer Switch 5kVA.

Connection diagram VE Transfer Switch 10kVA.

Digital Multi Control panel connection:
When the transfer switch is used together with a MultiPlus and a Digital Multi Control panel (DMC):
· Connect the transfer switch Auxiliary contact 1 and 2 of relay K2 (NO) to the screw connector on the back of the DMC as indicated in the connection diagram below.
· When the transfer switch auxiliary contact is open, the MultiPlus current limit is controlled by the knob on the front of the DMC. The display on the DMC will show the current limit value.
· When the transfer switch auxiliary contact is closed, a pre-set (generator) current limit is sent to the MultiPlus. The display on the DMC will show the text: “GEN”.
· For more information on this feature and on how to set the preset (generator) current limit see the Digital Multi Control Panel manual.

Page 3

Installation

VE Transfer Switch
Connection diagram Digital Multi Control panel. Fusing, earth leakage protection and grounding: · The AC input and output wiring must be protected by fuses or miniature circuit breakers (MCBs) that are suitable for the
system’s wire cross-section. · External earth leakage switches (RCDs or RCCBs) must be integrated with the transfer switch wiring. · All ground connections of the power sources and power consumers must be connected to the central ground connection of the
ship or the electric installation. Configuration: In most cases, there is no need to configure the transfer switch. The transfer switch is ready for use straight after installation. However, in some specific circumstances, an adjustment of the “switch on delay” of input 1 is needed. Make the delay time adjustment using a small flat-blade screwdriver.

Page 4

Installation

VE Transfer Switch

4. Technical specifications
VE Transfer Switch Nominal voltage Nominal frequency Nominal current input 1 Nominal current input 2 Nominal output current Maximum electromotor (air-conditioner) power Power consumption input 1 Power consumption input 2 Transfer time by closing contacts Transfer time by opening contacts Contacts delay input 1 Auxiliary contact GENERAL Operating temperature Maximum humidity (non-condensing) Miniature circuit breaker (MCB) Earth leakage breakers (RCD) ENCLOSURE Protection category Colour Dimensions (mm) Weight (kg)

5kVA (COS 0)

10kVA (COS 0)

200 – 250Vac, single-phase

50 60Hz

20A

40A

20A

40A

20A

40A

1.3kW

8kW