Trapped Key Control Isolation Switches with Solenoid Controlled Key Release (Stainless Steel)
In Trapped Key Systems, the initial stage involves the isolation of either the switchgear or machinery, or both in complex operations. Traditionally, three common methods are utilized for isolation, which include mechanical, through the control system, or through the power circuitry.
IDEM has designed control circuit isolation switches with a 4-pole monitoring contact block and a solenoid-controlled key release to enforce a run-down period before the key can be removed. This measure ensures that the machine is safely stopped before entering the hazardous area, thereby safeguarding both machinery and personnel against harm.
The isolation key can be utilized to unlock an access lock with the same code. Alternatively, in the case of multiple access points, a key exchange unit can be used to release different coded keys, allowing several gates to be open simultaneously.
- Material: 316 Grade Stainless Steel
- IP Rating: IP67, IP69K
- Operating Temperature:-20C to 40C
External Mount Trapped Key Control Isolation Switch with Solenoid Controlled Key Release (SS-ISB4-SR)
The SS-ISB4-SR can be used to isolate the control circuitry, and is designed to be mounted externally. To turn the key, the solenoid requires a 24VDC signal to energise, allowing the key to be removed and transferred to the next stage in your Trapped Key System.
- Body Material: 316 Grade Stainless Steel
- Ingress Protection: IP69K
- Contacts: 2NC + 2NO, 3NC + 1NO Monitoring Contact Blocks
- Indication: LED 1 Solenoid Status Indication / LED 2 is an Optional Auxiliary Indication Circuit
- Connection: 3 x M20 or ½” NPT Conduits
NOTE: Key sold separately. Optional integral request button available.
Panel Mount Trapped Key Control Isolation Switch with Solenoid Controlled Key Release (SS-CS-SKR)
The SS-CS-SKR is the first stage in the Trapped Key Process and is designed to mount directly to your panel. To turn the key, the solenoid requires a 24VDC signal to energise, allowing the key to be removed and transferred to the next stage in your Trapped Key System.
- Body Material: 316 Grade Stainless Steel Barrel and Mounting Plate
- Contacts: 2NC + 2NO, 3NC + 1NO or 4NC Monitoring Contact Blocks
NOTE: Key sold separately.
