IDEM safety interlock switches

IDEM safety interlock switch product details

IDEM's Kobra INCH series is a tongue-operated safety interlock switch that can be mounted to sliding guards, hinged or removable machine guards. These safety switches feature positively operated switching contacts and a robust anti-tamper key mechanism, designed to provide robust position interlocking detection for movable guards.

Based on the risk assessment of the application, the Kobra INCH can be used alone, providing positively operated contacts in compliance with EN60947-5-1, or can be used in conjunction with any dual-channel safety monitoring relay, **compliant with 4 Category PLe ISO13849-1 or SIL3 EN62061. Two models are available:INCH-1 and INCH-3, with selectable contact blocks and various actuators to facilitate installation and ensure durability.

Actuator profile designed to match cam mechanisms

Replaceable contact blocks

8 actuator entry points

Rotatable stainless steel 316 head

Plastic housing

IP67 protection rating

INCH-1 safety switch

2-pole contact block,2 Normally closed or 1 Normally closed/1 Normally open

1 conduit entry point

M16 or M12(quick connect)8 way

Compact housing: 25mm wide,55mm long,17mm fixed

INCH-3 safety switch

3-pole contact block

3 conduit entry points

M16 or M12(quick connect)8 way

Housing: 25mm wide,79mm long,22mm fixed

IDEMSafety interlock switch notes

Actuator not included. Standard, flat and flexible actuators are supplied separately. Plastic flexible actuators are well suited for tight-radius guards. Stainless steel guide rods are also sold separately to assist with guard alignment.

IDEM safety interlock switch standard

EN1088、IEC 60947-5-1、EN60204-1、ISO 13849-1、EN62061、EN954-1、UL508。

IDEM safety interlock switch important notice:

Read and understand these instructions before installing, operating or maintaining this device.

These products are designed to be components of custom safety-oriented control systems. Each manufacturer is responsible for ensuring the overall correctness of its system and machine functionality. IDEM and its subsidiaries and affiliates cannot guaranteeIDEMall characteristics of the specific system or product design.

IDEM safety interlock switch applications:

INCH-1，INCH-3andMK1-SSThe interlock switch is designed for installation on hinged moving guards to sense the interlocked position.

They can be mounted on sliding leading edges, hinged or removable guards. In accordance with IEC 60947-5-1 standards, they feature positively driven contacts, and the switch design provides a tamper-resistant actuator key. They can be fitted with an angled or flat actuator to cover most fixed positions, and contact blocks are available for slow make/break1NC 1NO，2NCor2NC 1NO(depending on the model). The enclosure is protected toIP67（MK1-SSrated asIP69K）。

IDEM safety interlock switch operation:

The switch is operated by removing the actuator key from the switch, causing deflection of the switch plunger.

At the position of the actuator 5mm, positive drive of the contacts can be achieved.

IDEM safety interlock switch installation guide:

Correct installation of the interlock switch is essential for achieving optimal performance and ensuring safety and reliability.

Installation of all switches must comply with the risk assessment for the individual application.

Installation must only be performed by qualified personnel in accordance with these instructions.

IDEM safety interlock switch warnings:

Do not open, bypass, or tamper with this switch, as it may cause serious injury.

1. Never use the switch as a mechanical stop.

2. To ensure that the actuator and switch are not subjected to mechanical shock, guides and stops must be used to prevent mechanical damage.

3. By removing4screw heads and rotating90degrees, the head of the switch can be rotated to obtain the optimal switching direction. Always ensure4screws are tightened to1Nmto ensure the switch is secure. Always install the blanking plug (supplied) into unused actuator entry holes.

4. When installing to a guard door, use1.5Nmtightened at2pieceM4mounting bolts to align and secure the switch body and actuator.

5. Typical applications:

6. When installing electrical wiring, ensure correct routing and do not interfere with the switch cover during installation.

The recommended wire size is 1.5 - 2.5 mm², and the tightening torque for the contact terminals is1Nm。

7. The tightening torque for the cover screws and cable glands is1Nmto maintain theIPrating.

8. Check that the interlock guard is open, the machine has stopped, and cannot be started.

9. After installation, apply tamper-proof paint or compound to the actuator and switch mounting bolts.

IDEM safety interlock switch maintenance:

Weekly: Inspect the switch actuator and body for signs of mechanical damage and wear. Replace any switches showing damage.

Check that the interlock guard is open, the machine is stopped, and cannot be started.

Every 6 months: Inspect the switch mechanism or actuator for mechanical damage. Replace any switches showing damage.

Isolate the power supply and remove the cover. Check the sealing of the screw terminals and check for moisture ingress. Do not attempt to repair any switches. The system is configured to allow dual interlock switch circuits 11-12 and21-22

circuits to feed directly into the contactor coils K1 andK2. When the start button is pressed and then released, the auxiliary contacts (A) of the contactorK1andK2maintain the feed to the contactor coil. Opening the interlock switch or pressingEstop will isolate the power contactor coil.

Restarting can only occur when the Guard is closed andE Stopis reset.

The system indicates that the guard is closed and the machine can be started.

IDEM safety interlock switch standards:

EN1088,50047，IEC 60947-5-1，EN60204-1

ISO 13849-1，EN62061，UL508

IDEM safety interlock switch safety classification and reliability data:

Mechanical reliability B10d

Can perform under a 100mA load2.5 x 106operations

EN 954-1 to the safety relay's4category

ISO 13849-1 depends on system architecture

EN62061 depends on system architecture, ** isSIL3

Safety data - annual usage per hour8times/per day24hours/ 365days

PFHd 3.4×10-8

Proof test interval (lifetime) 35 years

MTTFd 356 years

Utilization category AC15 A300 3A

Thermal current (lth)10A

Rated insulation/withstand voltage600VAC / 2500VAC

Actuator travel/positive opening force6mm / 12N（Zbtype contacts)

Actuator entry minimum radius 175mm standard100mmFlexible

** Entry/retraction speed 600mm / s

Body material polyester/stainless steel316

Protection rating IP67 plastic orIP69Kstainless steel316

Operating temperature -25C + 80C

Vibration IEC 68-2-6 10-55Hz + 1Hz

Travel: 0.35 mm,1Octave/Minute

Various pipe inputs (see sales part numbers)

Repair 2 unitsM4

Any mounting position

Pollution degree 3

Short-circuit overload

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Weidou Intelligent Technology (Shanghai) Co., Ltd.
Weidu Intelligent Technology (Shanghai) Co., Ltd 
Add:No. 2601, Xietu Road, Xuhui District, Shanghai, China
Contact: Candy
Mobile: 0086 173 0212 6825
Tel:0086 021-50610211
QQ：204 666 9799
Email：candy@wdutech.com
Web：www. wdutech.com