ESC-SFT Handles with Built-in Safety Switch

Designed to monitor the status of dangerous guards on board the machine

The ESC-SFT handle is a coded sensor with redundant channels that can be used in safety circuits designed to monitor the status of dangerous guards on board the machine. In combination with an appropriate certified control logic, in the case of accidental opening of doors, casings, protective covers of machinery or production lines, it activates the interruption of the machinery's power circuit.

The interlocking device consists of a magnetic sensor and the corresponding actuator, incorporated into the two elements of the handle. The approach of the coded magnet to the sensor (closing of the door) involves the switching of the contacts inside the sensor and the relative closure of the safety outputs of the control unit connected to it.

A green LED is on when the two elements of the handle are in contact and the guard is closed. The ESC-SFT handle is classified as a low coding level type 4 magnetic interlock device in accordance with EN14119. If used as an input to a certified safety control unit, it permits a system architecture up to SIL3 in accordance with the IEC 62061 standard or category 4 - PLe in accordance with the EN ISO 13849-1 standard.

The two parts that make up the product are equipped with a mechanical coupling system that allows the door to remain closed. The opening force required to open the door is approximately 2 kg.

The handle is fitted with a mechanical self-centring system with respect to its matching part which compensates for any misalignment of the door or bending of it due to the weight. It can be used for sliding or swing doors.

Available with contact blocks NO+NC or NC+NC, this product reaches IP67 protection class in accordance with the EN 60529 standard.

Material:

- Handle body: Glass-fibre reinforced polyamide based (PA) technopolymer, certified self-extinguishing UL-94 V0, black colour.

- Clamp element: acetal-based technopolymer (POM), black colour.

- Screw cover: Glass-fibre reinforced polyamide based (PA) technopolymer, certified self-extinguishing UL-94 V0, black colour.

- LED light diffusor: UL-94 V0 self-extinguishing polycarbonate, opal colour.

- Fixing plates: stainless steel.

Standard executions:

- ESC-SFT-C-A: 8 pole male connector M12, top axial output.

- ESC-SFT-C-C: 8 pole male connector M12, bottom axial output.

- ESC-SFT-C-B: 8 pole male connector M12, back output.

- ESC-SFT-F-A: cable length 2 or 5 metres, top axial output.

- ESC-SFT-F-C: cable length 2 or 5 metres, bottom axial output.

- ESC-SFT-F-B: cable length 2 or 5 m, back output.