Votronic Switch Unit 100 - User Manual

Installation and Operating Manual
Switch Unit 100 Switching Capacity 12V or 24 V / 100 A No. 2072
VOTRONIC Switch Unit 100 works on basis of a bistable relay allowing very high capacities combined with a very low
own consumption. It suits especially as a remote-controlled main switch or load relay which is on long-term power. The
current carrying capacity conducts 100 A.
Switch Unit 100 can be mote-controlled by a normal switch (1 pol. ON / OFF).
Furthermore the consumer can be switched on and off through an emergency switch at the relay by hand.
The ranges of application are campers, intervention vehicles and boats:
• Easy selection through ON / OFF switch
• High switching current 100 A, short time to 150 A loadable
• Applicable as battery main switch through ON / OFF switch (remote-controlled)
• Switching state monitor is visible from the outside
• Electronical delay prevent fast reactions like voltage drop or using strong consumer
• Suitable for long-term usage due to a very low consumption of the Switch Unit (compliant EN13976)
• No own electricity consumption if switched off with an external switch (remote-control)
• Automatical disconnection by under voltage 8.5 V (minimum operating voltage of Switch Unit 100)
Switch Unit 100 cannot be used as a safety relay (emergency switch) to switch off dangerous
machines or engines. Please check safety regulations!
Please read this operating and installation manual thoroughly prior to connection and
start-up.
Installation:
1. Chose an installation place being cleaned and being protected from humidity and dust.
2. The installation place of the unit should be chosen in such a way, that the cables of battery and consumers can
be as short as possible (losses) and that the pushbutton "EMERGENCY" is easily accessible. The unit should
never be covered by any objects.
3. The switch unit is fastened solidly with screws in the casing flanges. The unit can be installed in any position.
But please make sure that the connection terminals are easy to reach
4. Observe to fasten the connection cables in such a way, that neither high tensible force, nor high force of
pressure is acting on the terminals.
Connection: (Please regard the connection plan)
ALWAYS DISCONNECT THE POWER SUPPLY TO THE BATTERY PRIOR TO WORKING ON THE
ELECTRIC SYSTEM TO AVOID SHORT-CIRCUITS!
It is recommendable to use connection cables of different colours to avoid malfunctions due to mixed up connections.
Observe: Only use red cables for plus "+" connection and black cables for minus "-" connection.
The 2pol. screw terminal is connected correctly when cable lengths show to the right and the crews show up. The unit
will not be damaged by eventual wrong polarization, but it will not be operating. Imperatively observe the cable cross
sections and the polarity. Insert the fuses near the battery (safety for cable fire).

Summary

Switch Unit 100 Product Overview

Installation Guide

Provides instructions for selecting a clean, protected installation location and securing the unit.

Connection Instructions

Details on disconnecting power, using correct cable colors, and ensuring secure terminal connections.

Start-up and Operation

Switching the Unit ON

Methods for activating the Switch Unit via external switch or manual lever.

Switching the Unit OFF

Procedures for deactivating the unit using external controls or automatic undervoltage.

Application Example: Remote Main Switch

Demonstrates using the Switch Unit as a remote-controlled main switch in a living area.

Safety Regulations and Usage

Appropriate Application Restrictions

Defines the intended use as a power relay and outlines where it should not be applied.

General Safety Precautions

Covers cable management, environmental protection, electrical work, and user supervision.

Warranty and Liability Information

Details the warranty period, conditions for voiding warranty, and liability exclusions.

Technical Specifications and Compliance

Key Technical Data

Summarizes operating voltage, current consumption, switching capacity, and temperature range.

Declaration of Conformity

Lists directives, standards, and normative documents the product complies with.

Delivery Scope Contents

Outlines the items included in the product package.

Overview

1. Function Description
2. Switching ON
3. Switching OFF
4. Usage Features
5. Important Safety Regulations and Installation Notes
6. Technical Specifications
7. Compliance
8. Delivery Scope

The VOTRONIC Switch Unit 100 is a bistable relay designed for high-capacity switching with very low power consumption, making it ideal for use as a remote-controlled main switch or a load relay that remains powered for extended periods. It is capable of carrying a continuous current of 100 A, with a short-term load capacity of up to 150 A for 10 seconds. The unit operates on either 12 V or 24 V systems, with an operating voltage range of 8.5 V to 32 V.

Function Description:

The Switch Unit 100 can be remotely controlled by a standard single-pole ON/OFF switch. Additionally, it features an emergency switch on the relay itself, allowing for manual switching of the consumer ON or OFF.

Switching ON:

• External Switch: The unit can be switched ON via an external switch when the voltage at the sensor cable exceeds 10 V.
• Manual Override: It can also be switched ON manually using the switch lever on the product, moving it towards "ON" (labeled "EMERGENCY").

Switching OFF:

• External Switch: The unit can be switched OFF at any time via the external (remote-controlled) switch.
• Automatic Undervoltage Disconnection: It automatically disconnects when the operating voltage drops below a minimal point (undervoltage at sensor cable < 8.5 V). The switch-off point is 8.5 V, with a 1-second power-off delay. The automatic return cut-in point is 10.0 V, with a 2-second power-up delay.
• Manual Override: It can also be switched OFF manually using the switch lever on the product, moving it towards "OFF" (labeled "EMERGENCY").

Usage Features:

The Switch Unit 100 is suitable for a variety of applications, including campers, intervention vehicles, and boats. Key usage features include:

• Easy Selection: Simple ON/OFF control via an external switch.
• High Switching Current: Handles 100 A continuously, with a short-term capacity of 150 A.
• Remote-Controlled Main Switch: Functions effectively as a battery main switch controlled remotely.
• Switching State Monitor: An external indicator allows visibility of the switching state.
• Electronic Delay: Incorporates an electronic delay to prevent rapid reactions to voltage drops or the use of strong consumers.
• Low Consumption: Designed for long-term usage with very low power consumption (3 mA; 0.003 A when ON, 0 mA when OFF with external control). This compliance with EN13976 standards ensures minimal drain on the battery.
• Automatic Disconnection: Features automatic disconnection at an undervoltage of 8.5 V to protect the battery and system.
• Short-Circuit Protection: A supplied protection cover can be used for short-circuit protection.
• Flexible Installation: Can be installed in any position, provided the connection terminals are easily accessible.

Important Safety Regulations and Installation Notes:

• Not a Safety Relay: The Switch Unit 100 cannot be used as a safety relay (emergency switch) to power off dangerous machines or engines. Users must check relevant safety regulations.
• Read Manual: It is crucial to read the operating and installation manual thoroughly before connection and start-up.
• Installation Environment: Choose a clean installation location protected from humidity and dust. The unit should be installed in a well-ventilated room, free from rain, humidity, dust, aggressive battery gas, and condensation water. Never use the unit in locations with a risk of gas or dust explosion.
• Cable Management: Cables for the battery and consumers should be as short as possible to minimize losses. The "EMERGENCY" pushbutton must be easily accessible and never covered. Fasten connection cables securely to prevent high tensile or pressure forces on the terminals.
• Wiring: Always disconnect the power supply to the battery before working on the electrical system to avoid short-circuits. Use different colored connection cables to prevent malfunctions, specifically red for plus (+) and black for minus (-). Ensure correct polarization and cable cross-sections.
• Fuses: Fuses must be connected directly at the batteries (e.g., with VOTRONIC Power Fuse Holder and Cable Fuse Holder) for cable fire protection. The application example shows a 125 A fuse for the main battery connection and a 3 A fuse for the control circuit.
• Maintenance: Periodically check live cables and leads for insulation faults, breaks, or loosened connections, and remedy any defects immediately. The unit is not equipped with user-replaceable parts.
• Professional Consultation: If the non-commercial end-user cannot recognize the characteristic values or regulations, a specialist must be consulted.
• Warranty: The warranty period is 36 months from the purchase date. It becomes void with inappropriate utilization, use beyond technical specifications, improper operation, or external intervention not authorized by VOTRONIC.

Technical Specifications:

• Nominal Operating Voltage (DC): 12 V / 24 V
• Operating Voltage Range (DC): 8.5 V – 32 V
• Current Consumption ON: 3 mA; 0.003 A
• Current Consumption OFF (with control input): 0 mA
• Switching Current (load current) max.: 100 A permanent, 150 A for 10 sec.
• Undervoltage Disconnection:
  • Switch-off point: 8.5 V
  • Power-off Delay: 1 sec.
  • Cut-in Point (automatic return): 10.0 V
  • Power-up Delay: 2 sec.
• Fitting Position of Unit: Any
• Working Temperature Range: -20/+50 °C
• Protection Class: IP21
• Dimensions (mm): 105 x 77 x 38 mm
• Weight: 180 g
• Ambient Conditions, Humidity of Air: max. 95% RH, no condensation

Compliance:

The Switch Unit 100 complies with Directives 2014/35/EU, 2014/30/EU, 2009/19/EC, and relevant standards (EN55014-1, EN55022 B, EN61000-6-1, EN61000-4-2, EN61000-4-3, EN61000-4-4, EN62368-1, EN50498). It is also RoHS compliant, adhering to Directive 2011/65/EU for the Reduction of Hazardous Substances in electrical and electronic equipment. The product is manufactured under a Quality Management System certified to DIN EN ISO 9001.

Delivery Scope:

The package includes:

• Switch Unit 100
• Protection Cover for Capacity Connection Terminals
• 2 Screws M6 for Capacity Connection Terminals
• 2 Fixing-Screws for Protection Cover
• Operating Manual

Votronic Switch Unit 100 Specifications