TRASA3 Knowledge Base

Electrical Component Parameter Reference

An open technical reference for electrical component types, their applications, and selection parameters.

This material is also available in PL and RU.

Device description

Coil Surge Suppression Module

External module for suppressing switching overvoltage and EMC disturbance generated when an inductive coil is de-energized.

A coil surge suppression module is connected in parallel with the coil of a contactor, relay, solenoid or another inductive actuator.

Depending on the technology, it may use a diode, varistor, RC network or another clamping element.

Its purpose is to limit the voltage spike when the coil is switched off, reduce electromagnetic interference and reduce stress on the control output.

Key parameters include suppressor type, coil operating voltage, clamping voltage, polarity requirements where applicable and compatibility with the host device.

Components in this subcategory

Coil surge suppression modules for contactors, relays, solenoids and other inductive loads.

Available parameters

Coil Surge Suppression Module

38 parameters
General3
Product Series

Commercial or technical designation of a manufacturer's product family sharing a common design and compatible characteristics.

Application

Range of tasks and systems for which the manufacturer recommends the component.

Intended Use

Primary function of the device and its intended use as defined by its design and the manufacturer's documentation.

Dimensions6
Widthmm

External horizontal dimension of the product between its outermost lateral points.

Heightmm

External vertical dimension of the product from its lowest to its highest point.

Depthmm

External distance between the foremost and rearmost surfaces of the product.

Lengthmm

External linear dimension of the product along its longitudinal direction or principal length axis.

Diametermm

Transverse dimension of a product or its circular element measured through the centre between opposite points of the circumference.

Net Weightkg

Mass of the product itself, excluding transport packaging, additional accessories, and external equipment.

Mounting and Installation8
Mounting Method

Method used to mechanically secure the product to a support, surface, or load-bearing structure.

Mounting Type

Installation arrangement permitted by the product design, such as wall-mounted, flush-mounted, floor-mounted, or another specified mounting type.

Orientation

Permissible spatial orientation of the component during installation and operation.

DIN Rail Mounting Supported

Indicates whether the design provides for mounting equipment on a DIN rail.

Number of Mounting Holes

Number of holes provided in the product for mechanical fixing.

Mounting Hole Diametermm

Diameter of the hole provided for a fixing element used when mounting the product.

Horizontal Mounting Hole Spacingmm

Distance between the centres of mounting holes in the horizontal direction.

Vertical Mounting Hole Spacingmm

Distance between the centres of mounting holes in the vertical direction.

Electrical Parameters7
Rated VoltageV

Voltage value assigned to the product by the manufacturer for specified application conditions and characteristics.

Coil Suppression Type

Electrical suppression technology integrated in or explicitly supplied with the contactor control coil.

Rated CurrentA

Current assigned to the product by the manufacturer for the declared operating and thermal conditions.

Suppression Clamping VoltageV

Voltage at which the suppression device significantly clamps the inductive switching transient.

Rated PowerW

Rated active electrical power of the product declared by the manufacturer for specified operating conditions.

Rated FrequencyHz

AC frequency assigned to the product for normal operating conditions.

Power ConsumptionW

Electrical power consumed by the product itself in the declared normal operating mode.

Environmental Conditions10
IP Rating

Degree of enclosure protection against access to hazardous parts and ingress of solid objects and water, designated by the IP code.

IK Rating

Class of enclosure resistance to external mechanical impacts designated by the IK code.

Minimum Operating Temperature°C

Minimum ambient temperature at which normal operation of the product is permitted.

Maximum Operating Temperature°C

Maximum ambient temperature at which normal operation of the product is permitted.

Minimum Storage Temperature°C

Minimum ambient temperature permitted during storage of the product while not in operation.

Maximum Storage Temperature°C

Maximum ambient temperature permitted during storage of the product while not in operation.

Minimum Relative Humidity%

Minimum relative air humidity permitted for the declared operating or test condition.

Maximum Relative Humidity%

Maximum relative air humidity permitted for the declared operating or test condition.

Vibration Resistant

Indicates whether the product's resistance to vibration has been verified under the declared conditions.

Mechanical Shock Resistant

Indicates whether the product's resistance to short-duration mechanical shocks has been verified.

Standards and Compliance4
CE Marked

Indicates whether the CE marking is applied to the product where applicable.

RoHS Compliant

Indicates whether product compliance with applicable RoHS restrictions on hazardous substances has been declared.

IEC 60529 Compliant

Indicates whether the manufacturer declares product compliance with IEC 60529.

IEC 60068 Tested

Indicates whether the product has been tested according to applicable methods of the IEC 60068 series.