KEYS



Standard Lever Keys - Includes pictures of the contact sets.

1000 type keys

Abbreviations:-
M = Make, B = Break, C = Changeover, K = Make before break, N = Non-locking, L = Locking and S = Stop.
Keys which have a first side and a second side have a slash to differentiate number of contacts on each side e.g. 1st side / 2nd side.

Keys No. 68

Standard lever key.

Switching action and contact units:-
S / L2C

Ericsson Part Number - N5310
Siemens Part Number - No. 63
 

 
Keys No. 72

Standard lever key.

Switching action and contact units:-
N2C / S

Ericsson Part Number - N5305
 

 
Keys No. 73

Standard lever key.

Switching action and contact units:-
S / L4C

Ericsson Part Number - N5315
Siemens Part Number - No. 65
 
 
Keys No. 85

Standard lever key.

Switching action and contact units:-
S / L2C
 

 
Keys No. 89

Standard lever key.

Switching action and contact units:-
N2C / N2C
 

 
Keys No. 94

Standard lever key.

Switching action and contact units:-
N2C / S
 

 
Keys No. 96

Standard lever key.

Switching action and contact units:-
N2C / S
 

 
Keys No. 98

Standard lever key.

Switching action and contact units:-
S / L2M
 

 
Keys No. 103

Standard lever key.

Switching action and contact units:-
S / L1B, then 3M

Superseded by Key No. 207.
 

 
Keys No. 104

Standard lever key.

Switching action and contact units:-
S / L2M
 

 
Keys No. 107

Standard lever key.

Switching action and contact units:-
S / N2C

Superseded by Key No. 196.
 

 
Keys No. 112

Standard lever key.

Switching action and contact units:-
L2C / L3B, then 2M

Superseded by Key No. 213.

 

 
Keys No. 120

Standard lever key.

Switching action and contact units:-
S / L2C

 

 
Keys No. 121

Standard lever key.

Switching action and contact units:-
N2B, then 3M / L2B, then 3M

Superseded by Key No. 206.
 

 
Keys No. 124

Standard lever key.

Switching action and contact units:-
N2C / L2C

Superseded by key No. 174.
 

 
Keys No. 125

Standard lever key.

Switching action and contact units:-
L2C / L2C

Superseded by Key No. 212

 

 
Keys No. 131

Standard lever key.

Switching action and contact units:-
N2B, then 3M / L2M

Superseded by Key No. 227.

 

 
Keys No. 136

Standard lever key.

Switching action and contact units:-
S / L3B, then 3M

Superseded by Key No. 207.
 

 
Keys No. 171

Standard lever key.

Switching action and contact units:-
N3C / L3C
 

 
Keys No. 172

Standard lever key.

Switching action and contact units:-
N2C / L4C
 

 
Keys No. 174

Standard lever key.

Switching action and contact units:-
N2C / L2C

Ericsson Part Number - N5313
Siemens Part Number - No. 58
 

 
Keys No. 179

Standard lever key.

Switching action and contact units:-
N2B, then 3M / L2M

 

 
Keys No. 183

Standard lever key.

Switching action and contact units:-
L2K / L1B, then 4M
 

 
Keys No. 184

Standard lever key.

Switching action and contact units:-
S / N2B, then 4M
 

 
Keys No. 185

Standard lever key.

Switching action and contact units:-
N2K / N4M
 

 
Keys No. 194

Standard lever key.

Switching action and contact units:-
S / L2K
 

 
Keys No. 195

Standard lever key.

Switching action and contact units:-
S / L4M
 

 
Keys No. 196

Standard lever key.

Switching action and contact units:-
N2K / S

Siemens Part Number - No. 189
 

 
Keys No. 197

Standard lever key.

Switching action and contact units:-
L2C / L1C1M
 

 
Keys No. 198

Standard lever key.

Switching action and contact units:-
L4C / L4C

Ericsson Part Number - N5318
 

 
Keys No. 199

Standard lever key.

Switching action and contact units:-
L2C / L3C
 

 
Keys No. 204

Standard lever key.

Switching action and contact units:-
N2C / L2M
 

 
Keys No. 205

Standard lever key.

Switching action and contact units:-
N2M / L1B, then 2M (6 springs)
 

 
Keys No. 206

Standard lever key.

Switching action and contact units:-
NC3 / LC3

Ericsson Part Number - N5333
 

 
Keys No. 207

Standard lever key.

Switching action and contact units:-
S / L3C

Ericsson Part Number - N5319
 

 
Keys No. 208

Standard lever key.

Switching action and contact units:-
L2C / L4C

Ericsson Part Number - N5310
 

 
Keys No. 212

Standard lever key.

Switching action and contact units:-
L2C / L2C

Ericsson Part Number - N5303
57
 

 
Keys No. 215

Standard lever key.

Switching action and contact units:-
L2K / L2C

Siemens Part Number - No. 82
 

 
Keys No. 216

Standard lever key.

Switching action and contact units:-
N2C / N2C

Ericsson Part Number - N5320
60
 

 
Keys No. 218

Standard lever key.

Switching action and contact units:-
N2K / L3M
 

 
Keys No. 219

Standard lever key.

Switching action and contact units:-
N2C / L2K
 

 
Keys No. 223

Standard lever key.

Switching action and contact units:-
L2B, then 3M / L2B, then 3M
 

 
Keys No. 227

Standard lever key.

Switching action and contact units:-
N2C1M / L2M

Siemens Part Number - No. 87
 

 
Keys No. 231

Standard lever key.

Switching action and contact units:-
N3C / S
 

 
Keys No. 232

Standard lever key.

Switching action and contact units:-
N3C / L2C
 

 
Keys No. 236

Standard lever key.

Switching action and contact units:-
L3C / L3C

Ericsson Part Number - N5327
 

 
Keys No. 237

Standard lever key.

Switching action and contact units:-
S / L6M
 

 
Keys No. 238

Standard lever key.

Switching action and contact units:-
S / L4B
 

 
Keys No. 242

Standard lever key.

Switching action and contact units:-
N2C / L2C2M2B
 

 
Keys No. 243

Standard lever key.

Switching action and contact units:-
S / L2C2M2B

Siemens Part Number - No. 136
 

 
Keys No. 244

Standard lever key.

Switching action and contact units:-
N2K / N2K

Siemens Part Number - No. 129
 

 
Keys No. 245

Standard lever key.

Switching action and contact units:-
N2B, then 3M / N2B, then 3M

Siemens Part Number - No. 102
 

 
Keys No. 246

Standard lever key.

Switching action and contact units:-
N2K1M / L2B
 

 
Keys No. 249

Standard lever key.

Switching action and contact units:-
L2K / L2K2C
 

 
Keys No. 250

Standard lever key.

Switching action and contact units:-
L2M, then 2B / L1B, then 3M
 

 
Keys No. 251

Standard lever key.

Switching action and contact units:-
L3M, then 2B / L3M
 

 
Keys No. 253

Standard lever key.

Switching action and contact units:-
S / L4K

Siemens Part Number - No. 161
 

 
Keys No. 257

Standard lever key.

Switching action and contact units:-
S / L2K1C
 

 
Keys No. 259

Standard lever key.

Switching action and contact units:-
N2K / L2K
 

 
Keys No. 260

Standard lever key.

Switching action and contact units:-
L2C / L3K
 

 
Keys No. 263

Standard lever key.

Switching action and contact units:-
L4M / L4M

Ericsson Part Number - N5376
Siemens Part Number - No. 165
 

 
Keys No. 264

Standard lever key.

Switching action and contact units:-
L2K / L2K
 

 
Keys No. 265

Standard lever key.

Switching action and contact units:-
N2C / N2C2M
 

 
Keys No. 267

Standard lever key.

Switching action and contact units:-
N2K / L2C
 

 
Keys No. 269

Standard lever key.

Switching action and contact units:-
N2C2M / N2C2M
 

 
Keys No. 271

Standard lever key.

Switching action and contact units:-
L2K1C / L3C
 

 
Keys No. 273

Standard lever key.

Switching action and contact units:-
L3C / L3B, then 2M
 

 
Keys No. 276

Standard lever key.

Switching action and contact units:-
N2C / L3C
 

 
Keys No. 277

Standard lever key.

Switching action and contact units:-
N2C / L2K2C
 

 
Keys No. 280

Standard lever key.

Switching action and contact units:-
S / L2C4M2B
 

 
Keys No. 282

Standard lever key.

Switching action and contact units:-
N3C / L2K1C
 

 
Keys No. 286

Standard lever key.

Switching action and contact units:-
N2C1M / L4M
 

 
Keys No. 287

Standard lever key.

Switching action and contact units:-
N2C / N4C

Siemens Part Number - No. 153
 

 
Keys No. 289

Standard lever key.

Switching action and contact units:-
S / L6C

Ericsson Part Number - N5382
 

 
Keys No. 290

Standard lever key.

Switching action and contact units:-
N4C / L6C
 

 
Keys No. 291

Standard lever key.

Switching action and contact units:-
N4C / S

Siemens Part Number - No. 174
 

 
Keys No. 293

Standard lever key.

Switching action and contact units:-
N2C / L4K

Siemens Part Number - No. 155
 

 
Keys No. 294

Standard lever key.

Switching action and contact units:-
S / L4K1C

Ericsson Part Number - N5320
 

 
Keys No. 295

Standard lever key.

Switching action and contact units:-
N4C / L6C
 

 
Keys No. 296

Standard lever key.

Switching action and contact units:-
S / L4C4M

Drawing 60635
 

 
Keys No. 297

Standard lever key.

Switching action and contact units:-
L2C / L6C

Drawing 60645
 

 
Keys No. 298

Standard lever key.

Switching action and contact units:-
N4C / L4K

Drawing 60713
 

 
Keys No. 300

Standard lever key.

Switching action and contact units:-
L2K2C / L2K2C

Siemens Part Number - No. 187
 

 
Keys No. 301

Standard lever key.

Switching action and contact units:-
N3C / L4C
 

 
Key No. 302A & 302B

Single button key unit fitted to 300 type telephones.

302A - Button in position 2 (1K)
302B - Button in position 2 (1C)

Key No. 302A shown to the right.

Key No. 303A

Double and treble button key unit fitted to 300 type telephones

303A - Buttons in position 1, 2 & 3 (4K/1K/4K)
303B - Buttons in positions 1 & 3 (5K/-/4K)

Key No. 303A shown to the right.

 

Key No. 304A

Treble button key unit fitted to 300 type telephones.

Buttons in positions 1 to 3 (2K/1K/1K)

 

Keys No. 305

Standard lever key.

Switching action and contact units:-
S / N6C

Siemens Part Number - No. 208
 

 
Keys No. 306

Standard lever key.

Switching action and contact units:-
N2C / L6M

Siemens Part Number - No. 198
 

 
Keys No. 307

Standard lever key.

Switching action and contact units:-
S / L2C4B

 

 
Keys No. 319

Standard lever key.

Switching action and contact units:-
N4C / L8B
 

 
Keys No. 320

Standard lever key.

Switching action and contact units:-
L3C2M / L3C2M
 

 
Keys No. 321A

Fitted to 300 type telephones that have three switch holes in the case.

Drawing CD 1331.

 

Keys No. 322A

Fitted to 300 type telephones that have three switch holes in the case.

Drawing CD 1332.

 

Keys No. 323

Standard lever key.

Switching action and contact units:-
L2C / L6K
 

 
Keys No. 324

Standard lever key.

Switching action and contact units:-
N2K / L4C
 

 
Keys No. 325

Standard lever key.

Switching action and contact units:-
L2K / L4C
 

 
Keys No. 329

Standard lever key.

Switching action and contact units:-
N2K / N2K2C
 

 
Keys No. 331

Standard lever key.

Switching action and contact units:-
L2K / L4C2K
 

 
Keys No. 1001

Miniature 1000 type lever key.

Switching action and contact units:-
L2C2K / N2C2K

Ericsson/Plessey Part N9323MAT
 

Keys No. 1002

Miniature 1000 type lever key.

Switching action and contact units:-
L4C / N4C

Ericsson/Plessey Part N9318MAT
 

Keys No. 1003

Miniature 1000 type lever key.

Switching action and contact units:-
L6M / N2C2K

Ericsson/Plessey Part N9402MAT 

Keys No. 1004

Miniature 1000 type lever key.

Switching action and contact units:-
L4C / N2C2K

Ericsson/Plessey Part N9403MAT 

Keys No. 1005

Miniature 1000 type lever key.

Switching action and contact units:-
L2K / N4C

Ericsson/Plessey Part N9385MAT 

Keys No. 1006

Miniature 1000 type lever key.

Switching action and contact units:-
L2C2K / N4C

Ericsson/Plessey Part N9404MAT 

Keys No. 1101

Miniature 1000 type lever key.

Switching action and contact units:-
L2C2K / L2C2K

Ericsson/Plessey Part N9316MAT
 

Keys No. 1102

Miniature 1000 type lever key.

Switching action and contact units:-
L4C / L4C

Ericsson/Plessey Part N9315MAT
 

Keys No. 1103

Miniature 1000 type lever key.

Switching action and contact units:-
L6M / L6M

Ericsson/Plessey Part N9345MAT

Keys No. 1104

Miniature 1000 type lever key.

Switching action and contact units:-
L2C2K / L4C

Ericsson/Plessey Part N9379MAT
 

Keys No. 1105

Miniature 1000 type lever key.

Switching action and contact units:-
L4C / L4K

Ericsson/Plessey Part N9386MAT
 

Keys No. 1106

Miniature 1000 type lever key.

Switching action and contact units:-
 /

Ericsson/Plessey Part N9412MAT
 

Keys No. 1107

Miniature 1000 type lever key.

Switching action and contact units:-
 /

Ericsson/Plessey Part N9412MDT
 

Keys No. 1201

Miniature 1000 type lever key.

Switching action and contact units:-
N2C2K / N2C2K

Ericsson/Plessey Part N9324MAT
 

Keys No. 1202

Miniature 1000 type lever key.

Switching action and contact units:-
N4C / N4C

Ericsson/Plessey Part N9317MAT
 

Keys No. 1301

Miniature 1000 type lever key.

Switching action and contact units:-
S / L2C2K

Ericsson/Plessey Part N9326MAT
 

Keys No. 1302

Miniature 1000 type lever key.

Switching action and contact units:-
S / L4C

Ericsson/Plessey Part N9320MAT
 

Keys No. 1303

Miniature 1000 type lever key.

Switching action and contact units:-
S / L6M

Ericsson/Plessey Part N9330MAT
 

Keys No. 1304

Miniature 1000 type lever key.

Switching action and contact units:-
S / L4K

Ericsson/Plessey Part N9378MAT
 

Keys No. 1305

Miniature 1000 type lever key.

Switching action and contact units:-
S / L3C1K

Ericsson/Plessey Part N9329MAT
 

Keys No. 1306

Miniature 1000 type lever key.

Switching action and contact units:-
 /

Ericsson/Plessey Part N9365MAT
 

Keys No. 1351

Miniature 1000 type lever key.

Switching action and contact units:-
L8C / S

Ericsson/Plessey Part N242091T
 

Keys No. 1401

Miniature 1000 type lever key.

Switching action and contact units:-
S / N2C2K

Ericsson/Plessey Part N9325MAT
 

Keys No. 1402

Miniature 1000 type lever key.

Switching action and contact units:-
S / N4C

Ericsson/Plessey Part N9321MAT
 

Keys No. 1451

Miniature 1000 type lever key.

Switching action and contact units:-
N8C / S

Ericsson/Plessey Part N242092T
 

Keys No. 1601

Miniature 1000 type lever key.

Two key switching action and contact units:-
L2C2M1B / L2C2M1B
NL3C1M / L2C2M1B

Ericsson/Plessey Part N95303MA6T
 

 
Keys No. 1602

Miniature 1000 type lever key.

Two key switching action and contact units:-
S  / L1M1C
S / 4M2B

Ericsson/Plessey Part N95303MA46T
 

 
Keys No. 1701

Miniature 1000 type lever key.

Three key switching action and contact units:-
L2C2B1M / L2C2B1M
S/ 2C2B1M
L2M1C1K / S

Ericsson/Plessey Part N95304MA3T
 

 
Keys No. 1702

Miniature 1000 type lever key.

Three key switching action and contact units:-
L2C1B1K / L2C1B1K
S / 2C1B1K
L1M / L1M2B

Ericsson/Plessey Part N95304MA4T
 

 
Key No. 2001

Illuminated plunger key.

Uses Lamp No. 2 (Max power 1.5w).

Switching action and contact units:-
L2C
 

Key No. 2002

Illuminated plunger key.

Uses Lamp No. 2 (Max power 1.5w).

Switching action and contact units:-
L4C
 

Key No. 2003

Illuminated plunger key.

Uses Lamp No. 2 (Max power 1.5w).

Switching action and contact units:-
L6C
 

Key No. 2101

Illuminated plunger key.

Uses Lamp No. 2 (Max power 1.5w).

Switching action and contact units:-
N2C
 

Key No. 2102

Illuminated plunger key.

Uses Lamp No. 2 (Max power 1.5w).

Switching action and contact units:-
N4C
 

Key No. 2103

Illuminated plunger key.

Uses Lamp No. 2 (Max power 1.5w).

Switching action and contact units:-
N6C
 

Key No. 3001

Miniature 1000 type lever key.

Switching action and contact units:-
N8C / L8C

Ericsson/Plessey Part N9915MAT
 

Key No. 3002

Miniature 1000 type lever key.

Switching action and contact units:-
N12M / L12M

Ericsson/Plessey Part N9918MAT
 

Key No. 3101

Miniature 1000 type lever key.

Switching action and contact units:-
L8C / L8C

Ericsson/Plessey Part N9910MAT
 

Key No. 3102

Miniature 1000 type lever key.

Switching action and contact units:-
L12M / L12M

Ericsson/Plessey Part N9913MAT
 

Key No. 3201

Miniature 1000 type lever key.

Switching action and contact units:-
N8C / N8C

Ericsson/Plessey Part N9920MAT
 

Key No. 3202

Miniature 1000 type lever key.

Switching action and contact units:-
N12M / N12M

Ericsson/Plessey Part N9923MAT
 

Key No. 3301

Miniature 1000 type lever key.

Switching action and contact units:-
L8C /S

Ericsson/Plessey Part N9900MAT
 

Key No. 3302

Miniature 1000 type lever key.

Switching action and contact units:-
L12M / S

Ericsson/Plessey Part N9903MAT
 

Key No. 3401

Miniature 1000 type lever key.

Switching action and contact units:-
N8C / S

Ericsson/Plessey Part N9905MAT
 

Key No. 3402

Miniature 1000 type lever key.

Switching action and contact units:-
N12M / S

Ericsson/Plessey Part N9908MAT
 

   


 
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Last revised: November 18, 2021

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