Spare parts

GENERAL DESCRIPTION

The PTC protection unit protects electrical equipment against all causes of failure.
The protection unit consists of a set of PTC thermistors and a relay. The unit does not trip until the trigger temperature is reached.
The thermistor set is connected to the relay terminals. When the equipment temperature exceeds the maximum permitted limit, the relays open. When the temperature falls below safe levels, the relays reset.

TECHNICAL DATA

Supply voltage

110-230-380-415 V AC, 21-24-220 V DC, 50 Hz.

Output contacts

1 NO 2 NC

Inputs

max. 9 PTCs

Ambient temperature

–5 °C to +55 °C

Service life

1 million cycles

All types of sensors (PT1000 – PT100 – RTD – BTD) can be supplied to meet every need.

State the supply voltage when ordering.

The "V" series spring-applied electromagnetic brake works on direct current. Its main features are:

A very strong structure, maximum quietness when engaging and running,
low cost thanks to the simple brake-unit assembly, with the advantage that the electromagnet serves as the motor cover,
high braking torque,

excellent heat dissipation the fan also acts as the brake disc, carrying away the heat produced during braking while keeping wear of the friction lining to a minimum,

a wide range of possible uses. In fact this brake can be fitted to any type of standardised motor. Insulation class F,
This brake comes with a fan cover.

OPERATION

The brake is designed to be intrinsically safe at rest, by means of a spring. When the electromagnet is energised, the anchor is drawn towards it, compressing the springs. This lets the fan, keyed to the mechanical shaft, turn freely. If the power fails, the magnetic field disappears and the springs push the anchor against the fan, which brakes the shaft.

Supply

through a dedicated power supply

We recommend the S4 power supply for a 380–400 V supply, and N2 for a 220–240 V supply

*B.T. = static braking torque (Nm)

Packaging

single pieces

Note the "V" series brake complies with directives 89/336 CEE, 92/31 CEE and 93/69 CEE. Available with 100 V on request.

Various brush holders for different electric motors and tools.

The models shown in this catalogue are the types most commonly used. Customers are informed that any other model can be supplied to specific requirements.

Packaging

single items.

The models shown in this catalogue are the types most commonly used. Customers are informed that any other model can be supplied to specific requirements.

Packaging

single items.

Rotation

one direction, right

Stationary ring

with O-ring

Maximum pressure

16 bar

Temperature -25° to max. +90 °C

Use

water, clean liquids

On request, the seals listed are also available in other versions, depending on the liquid being pumped.