Electrical parts

The bistable installation contactors are only switched on and off with a pulse or manually. When switched, the coil does not consume any power and therefore does not cause any additional heat in the control cabinet. 

The double-breaking contacts increase switching reliability. They are therefore suitable for switching all types of electrical loads such as: electrical devices and units, AC and three-phase motors, pumps, air conditioning systems, electrical heaters and a wide variety of types of lighting.

The bistable installation contactors are only switched on and off with a pulse or manually. When switched, the coil does not consume any power and therefore does not cause any additional heat in the control cabinet. 

The double-breaking contacts increase switching reliability. They are therefore suitable for switching all types of electrical loads such as: electrical devices and units, AC and three-phase motors, pumps, air conditioning systems, electrical heaters and a wide variety of types of lighting.

The bistable installation contactors are only switched on and off with a pulse or manually. When switched, the coil does not consume any power and therefore does not cause any additional heat in the control cabinet. 

The double-breaking contacts increase switching reliability. They are therefore suitable for switching all types of electrical loads such as: electrical devices and units, AC and three-phase motors, pumps, air conditioning systems, electrical heaters and a wide variety of types of lighting.

The bistable installation contactors are only switched on and off with a pulse or manually. When switched, the coil does not consume any power and therefore does not cause any additional heat in the control cabinet. 

The double-breaking contacts increase switching reliability. They are therefore suitable for switching all types of electrical loads such as: electrical devices and units, AC and three-phase motors, pumps, air conditioning systems, electrical heaters and a wide variety of types of lighting.

The bistable installation contactors are only switched on and off with a pulse or manually. When switched, the coil does not consume any power and therefore does not cause any additional heat in the control cabinet. 

The double-breaking contacts increase switching reliability. They are therefore suitable for switching all types of electrical loads such as: electrical devices and units, AC and three-phase motors, pumps, air conditioning systems, electrical heaters and a wide variety of types of lighting.

Pluggable replacement module for surge arrester BSA-GPJ-20

MOV: high-performance varistor and gas-filled spark gap

The devices of the BSA-GPJ series were developed to protect sensitive devices and electronics in connection with upstream class I+II devices.

The BSA-GPJ-20 (2+0) includes metal oxide varistors and gas-filled spark gap for protection in the TN-S network. In the event of a defect, the two-part device enables a simple and quick replacement without new wiring, by pulling out the plug-in module and inserting a new module. The devices have a mechanical status display and a remote signaling contact.

Pluggable replacement module for surge arrester BSA-W1-12.5

MOV: High-performance varistor 

The devices of the BSA-W1 series were developed to protect against direct and indirect lightning discharges. They offer protection in zone transitions 0A - 1 according to IEC 62305.

The BSA-W1 (4+0) consist of four high-performance metal oxide varistors to protect three-phase TN-S networks with separate N and PE conductors.

In the event of a defect, the two-part device enables a simple and quick replacement without new wiring, by pulling out the plug-in module and inserting a new module. The devices have a mechanical status indicator and a remote signaling contact.

Pluggable replacement module for BSA-W1L-25

MOV surge arrester: High-performance varistor 

The devices of the BSA-W1L series were developed to protect against direct and indirect lightning discharges. They offer protection in the zone transition 0A - 1 according to IEC 62305.

The BSA-W1L (4+0) consist of four gas-filled spark gaps in series with high-performance metal oxide varistors. They are free of leakage current and can therefore be used in the pre-counter area. In the event of a defect, the two-part device enables a simple and quick replacement without new wiring, by pulling out

the plug-in module and inserting a new module. The devices have a mechanical status indicator and a remote signaling contact.

Replacement module for surge arrester BSA-W2-20

The devices of the BSA-W2 series were developed to protect against the effects of indirect lightning discharge and induction voltage. They offer protection in zone transitions 1-2 according to IEC 62305. The BSA-W2 (4+0) contains four high-performance metal oxide varistors to protect three-phase TN-S networks with separate

N and PE conductors. In the event of a defect, the two-part device enables a simple and quick replacement without new wiring, by pulling out the plug-in module and inserting a new module. The devices have a mechanical status indicator and a remote signaling contact.

ISB-G group block for group formation

ISB-Z central control block, central on/off

Connection bridge for looping through the plus and minus pole of the 17.5mm supply voltage.

With the limit switch RG 3300, Relmatic expands the product range of modules for interface technology with the highest functionality and reliability.

The current monitor RG 3300 is used for limit value monitoring of 0 ... 1/5 A DC and AC currents. The high level of reliability and safe isolation are essential features that guarantee trouble-free system operation.

Two switching output channels can be configured independently of each other. The switching point and the switching hysteresis can each be set with a 12-turn potentiometer on the front of the device. The switching status is displayed with a yellow LED on the front of the device. 

The current monitoring relay SIW-25 serves for monitoring the current level in 1-phase AC circuits. It is suitable for:

- remote equipment diagnostics (short-circuit, increased

peak current)

- Priority switching (2 devices may not be active

simultaneously - protection against overload)

- Current flow display (informs which devices are

switched on)

- Switchover of devices

On exceeding the set current level, the relay switches

on after the set delay. The hysteresis comes into effect

when resetting to the normal state.

The advantage of the SIW-25 is that the cable is fed

through underneath the distributor cover.

Relmatic's SIW-1 series current monitoring relays monitor AC currents in 5 ranges from 0.1 - 1A, 0.2 - 2A, 0.5 - 5A, 0.8 - 8A and 1.6 - 16.0 A (high range) and are used to monitor all 1-phase AC low-voltage circuits for use.

The monitoring of the maximum current can be set from 10% to 100% of the end value. To suppress brief peaks, the delay time can be set from 0 - 10 seconds.

In building automation, as well as in process control, it is very practical to switch a relay contact on or off during commissioning and service. This means operating a valve, a pump, heating or ventilation in manual mode. With the switch feedback, the controller is informed whether the coupling module is in automatic or manual mode.

The KBD-1 coupling module contains 1 circuit with 1 changeover contact for a load of 12 A / 250 V AC, which can be controlled with 24V AC/DC.

Switching on lights can lead to very high inrush

current peaks.

A closing contact can bounce 3 to 7 times until it has

closed completely. This creates a light arc which can

melt the contact surface. Micro-welding can take

place when the contact cools down (contact sticks).

To prevent sticking of the contact, relays with a

preceding tungsten contact are used.

Inrush current peaks for filament lamps of 165 A /

max. 20 ms, or for fluorescent lamps of 800 A / max.

200 µs can be switched with these.

• 1 switching circuit with 12 A The switching circuit is capable of switching an output of 12 A /250 V AC. • Minus activation For the new generation of controllers with minus outputs, the A3 activation is activatable with a minus.

• AUTO-OFF-ON with feedback The switching circuit can switch to automatic or manual mode. In automatic mode the contact with feedback is closed, therefore a logic 1 results on the controller. Multiple feedbacks can be connected in series.

• DIN 45 mm housing The standardised housing enables the KBD-1 to be installed by means of a 45 mm cut-out behind the covering, it only requires a width of 17.5 mm for this. It only requires a width of 17.5 mm.

In building automation, as well as in process control, it is very practical to switch a relay contact on or off during commissioning and service. This means operating a valve, a pump, heating or ventilation in manual mode. With the switch feedback, the controller is informed whether the coupling module is in automatic or manual mode.

The KBD-2 coupling module contains 2 circuits, each with 1 changeover contact for a load of 12 A / 250 V AC, which can be controlled with 24V AC/DC.  

Switching on lighting fixtures can result in very high inrush currents. A closing contact bounces 3-7 times until it closes completely. This creates an arc that can melt the contact surface. If the closed contact cools down, micro-welding can occur (contact sticks).

To avoid contact sticking, relays with a leading tungsten contact are used.

This allows switch-on peaks of 165 A / max. 20 ms for incandescent lamps, or 800 A / max. 200 µs for fluorescent lamps.  

An 8-pole connection comb is available for faster wiring of the supply A1 – A2.