Remote Delay

Remote Delay Interlocks

Many industrial machines have inertial overrun when turned off. Existing braking methods are not instantaneous and are not suited to some processes. In these cases, it is vital that the unlocking should be delayed until the hazard is removed. Unimax Remote delay models have a safety bolt built into the fail safe switching unit which has to be electrically withdrawn, meaning operating the switch alone won't turn off the device, which is important in many sectors and applications, for example power control infrastructure within nuclear substations.

The remote delay interlock relies on outside sensing to trigger the electromechanical bolt which prevents the handle from being turned from OFF to OPEN until all the control elements for safety have been met. Available with either the GW or SAF locking systems.

Actuators

SAF2 Extended Knob:
Suitable for use on light machinery in clean operating conditions. The knob is black plastic with integral stainless steel key.
SAF4 Lever Handle:
For heavy duty operations particularly in greasy areas or when gloves must be used. Handle gives full visual indication of interlock status.The die-cast handle is finished in red with Integral stainless steel key.
SAF41 Lock Lever Handle:
Same as the SAF4 handle with the added security lock and removable key. The handle can be locked in the open position to prevent anyone starting the machine during maintenance. It may also be locked CLOSED/POWER OFF or CLOSED/POWER ON to prevent unauthorized operation.
SAF5 Heavy Duty Knob:
Suitable for heavy duty use the Knob features a patented shroud which protects the key and prevents it from being turned until fully engaged with the lock. This extra large knob also provides excellent grip. It is Die-cast and finished in red.
GW5 Extended Knob:
Suitable for manual operation especially where a guard may require regular removal.
GW7 Lever Handle:
For heavy duty operations particularly in greasy areas or when gloves must be used. Handle gives full visual indication of interlock status.
GW61 Flush Button:
Button is operated by an Allen-Key, useful where surface obstructions must be minimised.

Click here for further detail on Locks.

Click here for further detail on Actuators

Click here for further details on Enclosures

Click here for Maintenance Override Systems.

Ordering Process

 

 

RD

 

C

                                       

ACTUATOR WITH STAINLESS STEEL LOCK

KNOB

2B

 

RD

 

C

LEVER HANDLE

4B

 

RD

 

C

LOCKABLE LEVER HANDLE

41B

 

RD

 

C

HEAVY-DUTY KNOB

5B

 

RD

 

C

ACTUATOR WITH BRASS LOCK

KNOB

GW5 

 

RD

 

C

FLUSH BUTTON

GW61

RD

C

LEVER HANDLE

GW7 

 

RD

 

C

SWITCH CIRCUIT

SINGLE POLE

 

11

RD

 

C

DOUBLE POLE

 

21

RD

 

C

CHANGEOVER

 

22

RD

 

C

THREE POLE

 

31

RD

 

C

DOUBLE POLE + INDICATOR

 

32

RD

 

C

CHANGEOVER + INDICATOR

 

33

RD

 

C

CIRCUIT VOLTAGE

230 V AC 50/60 HZ

   

RD

2

C

120 V AC 50/60 HZ

   

RD

3

C

24 V 50HZ

   

RD

5

C

24 V DC

   

RD

6

C

Order Examples

4B32RD2C       LEVER HANDLE ACTUATED STAINLESS STEEL LOCK. OPERATING A DOUBLE POLE FAIL SAFE SWITCH. INDICATOR SWITCH 230 V AC 50/60 HZ CIRCUIT.

GW533RD5C   KNOB HANDLE ACTUATED BRASS LOCK. OPERATING A CHANGEOVER FAIL SAFE SWITCH.  INDICATOR 24 V 50 HZ.

Unimax also supply a indicator unit which shows the Guard release status for the Remote Delay Interlock

L2

L3

L5

L6

230 V AC 50/60 HZ

120 V AC 50/60 HZ

24 V 50HZ

24 V DC