KO 128
HOLE SIZE
SPECIFICATIONS
Ratings:
FEATURES & BENEFITS
4A @ 125 VAC
2A @ 250 VAC
Zinc alloy die cast housing and cylinder, chrome plated
11 Blade criss cross tumblers.
Contact Resistance:
20 mΩ max. initial @ 2-4 VDC, 100 mA
Reversible, double bitted keys
Insulation Resistance: 200 MΩ min.
Dielectric Strength: 1,500 V rms @ sea level
Part
Number
Lock Configuration
(as viewed from key end)
Connected Terminals
Pos. 1 Pos. 2 Pos. 3 Pos. 4
Key Pull
Possible
1
OFF
1-2
1-2
1-2
1-2
KO128A
KO128B
KO128E
KO128F
90 indexing
Pos. 1
Pos. 1, Pos. 2
Pos. 1
2
1
90 indexing
OFF
OFF
OFF
2
1
90 indexing
2
1
90 indexing
Pos. 1
2
1
KO128G
KO128H
90 indexing
OFF
OFF
1-2
1-2
Pos. 1, Pos. 2
Pos. 1
2
1
90 indexing
2
= Detent Position
= Keypull Possible
= Momentary
KO 129
SPECIFICATIONS
Ratings:
FEATURES & BENEFITS
Lock: bright nickel plated zinc alloy with nickel facing
(black and polished chrome facing available)
4A @ 125 VAC
2A @ 250 VAC
Tumbler mechanism: 4-disc tumbler cylinder
Keys: brass with code no.
Contact Resistance:
20 mΩ max. initial @ 2-4 VDC, 100 mA
Contacts: silver plated copper alloy
Terminals: silver plated copper alloy
Mounting nut: nickel plated zinc alloy
Insulation Resistance: 200 MΩ min.
Dielectric Strength: 1,500 V rms @ sea level
Part
Number
Lock Configuration
Connected Terminals
Key Pull
Possible
(as viewed from key end)
Pos. 1
Pos. 2
Pos. 3
Pos. 4
Pos. 5
3
2
KO129A (SP)
45 - 90 indexing
7-8
8-1
1-3
Pos. 3, Pos. 5
Pos. 1, Pos. 3
5
3
4
90 - 45 indexing
45 - 45 indexing
45 - 45 indexing
45 indexing
1-2
7-1
8-1
6-7
7-8
KO129B (SP)
KO129C (SP)
KO129D (DP)
KO129E (SP)
KO129F (DP)
KO129G (SP)
1
3
1-2
2
4
Pos. 3
Pos. 3
Pos. 3
Pos. 3
Pos. 3
1-2, 5-6 8-1, 4-5 7-8, 3-4
8-1 1-2
3
4
8-1, 4-5 1-2, 5-6
8-1
45 indexing
7-8
45 indexing
3
2
45 indexing
7-8, 3-4 8-1, 4-5
1-2 8-1
1-2, 5-6 8-1, 4-5 7-8, 3-4
7-8 8-1 1-2
7-8, 3-4 8-1, 4-5 1-2, 5-6
KO129H (DP)
KO129J (SP)
KO129K (DP)
KO129L (SP)
KO129M (DP)
3
3
45 - 45 indexing
45 - 45 indexing
45 - 45 indexing
7-8
2
4
2
4
45 - 45 indexing
= Keypull Possible
= Detent Position
= Momentary
227
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