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Standard Basic Lock is suitable for use with a wide range of electrical switchgear. Lock is available in Pin type ( I#L ) and Figure Type ( I#S ) with standard and customised accessories to suit most suppliers of switchgears equipment (#: L for Brass and S for Stainless Steel). The Standard version comes with a 9.5 mm square shaft or a 14.5 mm round shaft on the rear side, which engages with the actuating lever on the switchgear/isolator. Power isolation is done by turning the key, which can be transferred to an access lock to enforce an interlocking sequence. The standard basic lock is also used to ensure that multiple power suppliers are not connected to a common busbar. Please contact PSPC for standard suggested schemes.

Operating Sequence

Key Trapped in Clockwise, 9.5 mm Sq/14.5 mm Dia Shaft rotates in Clockwise direction and Key Trapped in Anti Clockwise, 9.5 mm Sq/14.5 mm Dia Shaft rotates in Anti Clockwise direction

Technical Specification

MODEL MATERIAL FINISH
ILA-100 BRASS UNPLATED BRASS
ILA-100 N BRASS NICKEL PLATED
ISA-100 (WITHOUT FLANGE) STAINLESS STEEL MIRROR FINISH

Ordering Information

MODEL SHAFT SPECIFICATION KEY ROTATION DEGREE OF ROTATIONo FLANGE DETAIL FLIP CAP
ILA-100 SQ: 9.5 mm SQUARE
SHAFT OR RD: 14.5 mm
ROUND SHAFT
CW/ACW 45/65/90 FL1 : 45o FLANGE/
FL2 : 135o FLANGE/
NFL : NO FLANGE
0=NO 1=YES
ISA-100 (WITHOUT FLANGE) SQ : 9.5 mm SQUARE
SHAFT OR RD: 14.5 mm
ROUND SHAFT
CW/ACW 45/65/90 NFL : NO FLANGE 0=NO 1=YES

Associated Keys : ILK-100, ILK-200, ILK-300

Dust Cap : ILM-100

Example : ILA-P-100 N-SQ-CW-45-FL-1-0 is a Basic Lock, Pin Type, Brass, Nickel Plated, with 9.5 mm SQ shaft, clockwise key rotation for 45o with Flange at 45o, without flip cap.


Operating Sequence

Type 1 : LH Lock Key is in released position, RH Lock Key with Rear shaft 9.5 mm Sq / 14.5 mm Dia rotates in Clockwise while key trapped in Clockwise direction, and vice versa.

Type 2 : Both LH Lock & RH Lock keys are in released position: first release the LH Lock key, then RH Lock with rear shaft 9.5 mm Sq/14.5 mm Dia shaft rotates in anticlockwise direction, while RH Lock key released from the lock.

Technical Specification

MODEL MATERIAL FINISH
ILA-2 BRASS UNPLATED BRASS
ILA- 2N BRASS NICKEL PLATED
ISA-2 STAINLESS STEEL MIRROR FINISH

Ordering Information

MODEL SHAFT SPECIFICATION KEY ROTATION LOCK TYPE FLIP CAP
ILA 2 9.5 mm SQUARE
SHAFT OR 14.5 mm
ROUND SHAFT
CW/ACW TYPE 1 : KEY EXCHANGE
TYPE 2 : BOTH KEYS TRAPPED
0=NO 1=YES
ISA2 9.5 mm SQUARE
SHAFT OR 14.5 mm
ROUND SHAFT
CW/ACW TYPE 1 : KEY EXCHANGE
TYPE 2 : BOTH KEYS TRAPPED
0=NO 1=YES

Associated Keys : ILK-100, ILK-200, ILK-300

Dust Cap : ILM-100

Example : ILA-P-2N-SQ-CW-1-0 is a double basic lock, Pin Type, Brass, Nickel Plated, with 9.5 mm Sq stem, exchange type, clockwise without flip cap.


The Bolt Interlock has an extendable bolt driven by a robust driving link inside the lock body. It is widely used to control the movement of the operating handle of Electrical Switchgear. The Standard version comes with a 9.5 mm Ø or 16 mm Ø bolt. It is used to control the movement of the toggles, levers or cam of the switchgear. The brass version is called ILB and the stainless-steel version is ISB. The Bolt interlock can be supplied with mounting kits or special attachments if required. (‘P’ for Pin type; ‘F’ for Figure type).

Bolt Specification :

The initial Bolt length from block is available in options 0, 6, 19 and 25 mm. The standard bolt travel length is 20mm. For other special requirements, please contact PSPC.

Operating Sequence

Key Trapped in clockwise condition, bolt retracted from its position, and Key released condition bolt extended to initial length 20 mm (L+20 mm).

Technical Specification

MODEL MATERIAL FINISH
ILB BRASS UNPLATED BRASS
ILB N BRASS NICKEL PLATED
ISB STAINLESS STEEL MIRROR FINISH

Ordering Information

MODEL DIA OF THE BOLT KEY ROTATION BOLT ORIENTATION BOLT INITIAL POSITION FROM BLOCK(mm) KEY POSITION
ILB 9.5/16(mm) CW/ACW L/R/T/B
L : LEFT
R : RIGHT
T : TOP
B : BOTTOM
0/6/19/25 0 : KEY IN BOLT IN
1 : KEY OUT BOLT IN

Associated Keys : ILK-100, ILK-200, ILK-300

Dust Cap : ILM-100

Example : ILB-F-N-9.5-CW-L-6-0 is a Bolt Lock, Figure Type, Brass, Nickel Plated, with 9.5 mm with 9.5 mm Ø Bolt clockwise rotation for 90o with 6mm initial length without flip cap.

This version of double bolt interlock has an extendable bolt driven by a robust driving link inside the lock boy. The components are made of Brass hot stamp forgings and extrusion process. They are finished with bright Nickel plating for durability and attractive appearance. They are available in Double Lock & Key exchange options.
These locks are widely used in electrical switchgears and guard locking with suitable accessories. ISB2 is the stainless-steel version of these locks.


Operating Sequence

Type 1 : Both keys released and bolt extended (L+20 mm)

First release the RH Lock key, now shaft extended to L+20 mm, then release the LH Lock key and vice versa.

Type 2 : Key exchange type: RH Lock key trapped, LH Lock key released, bolt extended to L+20 mm

To retract the bolt, first LH Lock key trapped, now release the RH Lock key, and vice versa.

Technical Specification

MODEL MATERIAL FINISH
ILB2 BRASS UNPLATED BRASS
ILB 2N BRASS NICKEL PLATED
ISB2 STAINLESS STEEL MIRROR FINISH

Ordering Information

MODEL DIA OF THE BOLT KEY ROTATION BOLT ORIENTATION BOLT INITIAL POSITION FROM BLOCK LOCK TYPE
ILB2 Ø16 CW/ACW L/R/T/B L : LEFT
R : RIGHT
T : TOP
B : BOTTOM
0/6/19/25 mm TYPE1 : KEY EXCHANGE
TYPE2 : BOTH KEYS TRAPPED
L/R/T/B L : LEFT TYPE1 : KEY
INITIAL LENGTH L (KEY TRAPPED POSITION)
FINAL LENGTH L+20 mm (KEY RELEASED POSITION)
ISB2 Ø16 CW/ACW R : RIGHT
T : TOP
B : BOTTOM
0/6/19/25 EXCHANGE
TYPE2 : BOTH KEYS TRAPPED

Associated Keys : ILK-100, ILK-200, ILK-300

Dust Cap : ILM-100

Example : Example: ILB2-P-N-16Ø-CW-0-1-0 is double bolt interlock, pin type, Brass, Nickel Plated, with 16Ø bolt, clockwise, Initial length 0mm, left hand bolt, key exchange type, without flip cap.