中间继电器(intermediate relay)：用于继电保护与自动控制系统中，以增加触点的数量及容量。 它用于在控制电路中传递中间信号。中间继电器的结构和原理与交流接触器基本相同，与接触器的主要区别在于：接触器的主触头可以通过大电流，而中间继电器的触头只能通过小电流。所以，它只能用于控制电路中。 它一般是没有主触点的，因为过载能力比较小。所以它用的全部都是辅助触头，数量比较多。新国标对中间继电器的定义是K，老国标是KA。一般是直流电源供电。少数使用交流供电。
3G3IV-PLKEB27P5
3G3IV-PLKEB4011
3G3IV-PLKEB4015
3G3IV-PLKEB4018
3G3IV-PLKEB4022
3G3IV-PLKEB4030
3G3IV-PLKEB4037
3G3IV-PLKEB4045
3G3IV-PLKEB40P7
3G3IV-PLKEB41P5
3G3IV-PLKEB42P2
3G3IV-PLKEB43P7
3G3IV-PLKEB45P5
3G3IV-PLKEB47P5
3G3IV-PP0010
3G3IV-PP0020
3G3IV-PPO36F
3G3IV-PUZBAB 1.3A 18.0MH
3G3IV-PUZBAB2A7.0MH
3G3JV-A2001
3G3JV-A2002
3G3JV-A2004
3G3JV-A2007
3G3JV-A2015
3G3JV-A2022
3G3JV-A2037
3G3JV-A4002
3G3JV-A4004
3G3JV-A4007
3G3JV-A4015
3G3JV-A4022
3G3JV-A4037
3G3JV-AB001
3G3JV-AB002
3G3JV-AB004
3G3JV-AB007
3G3JV-AB015
3G3JV-PRS1010J
3G3JV-PRS1020J
3G3JV-PRS2010J
3G3JV-PRS2020J
3G3JV-PRS2030J
3G3JV-PRS3005J
3G3JV-PRS3010J
3G3JV-PRS3020J
3G3JV-PSI232J
3G3JV-PSI232JC
3G3JV-PSI485J
3G3MV-A2001
3G3MV-A2002
3G3MV-A2004
3G3MV-A2007
3G3MV-A2015
3G3MV-A2022
3G3MV-A2037
3G3MV-A2055
3G3MV-A2075
3G3MV-A4002
3G3MV-A4004
3G3MV-A4007
3G3MV-A4015
3G3MV-A4022
3G3MV-A4037
3G3MV-A4055
3G3MV-A4075
3G3MV-AB001
3G3MV-AB002
3G3MV-AB004
3G3MV-AB007
3G3MV-AB015
3G3MV-AB022
3G3MV-AB037
3G3MV-PDRT1-SINV1
3G3MV-PDRT2
3G3MV-PRS1010V
3G3MV-PRS1020V
3G3MV-PRS1030V
3G3MV-PRS1040V
3G3MV-PRS2010V
3G3MV-PRS2020V
3G3MV-PRS2030V
3G3MV-PRS2050V
3G3MV-PRS3005V
3G3MV-PRS3010V
3G3MV-PRS3020V
3G3MV-PRS3030V
3G3RV-A2004
3G3RV-A2007
3G3RV-A2015
3G3RV-A2022
3G3RV-A2037
3G3RV-A2055
3G3RV-A2075
3G3RV-A2110
3G3RV-A2150
3G3RV-A2185
3G3RV-A4004
3G3RV-A4007
3G3RV-A4015
3G3RV-A4022
3G3RV-A4037
3G3RV-A4055
3G3RV-A4075
3G3RV-A4110
3G3RV-A4150
3G3RV-A4185
3G3RV-B211K
3G3RV-B2220
3G3RV-B2300
3G3RV-B2370
3G3RV-B2450
3G3RV-B2550
3G3RV-B2750
3G3RV-B2900
3G3RV-B411K
3G3RV-B413K
3G3RV-B416K
3G3RV-B4220
3G3RV-B4300
3G3RV-B4370
3G3RV-B4450
3G3RV-B4550
3G3RV-B4750
3G3RV-B4900
3G3RV-PDRT2
3G3RV-PFS5972-10-07
3G3RV-PFS5972-130-35
3G3RV-PFS5972-18-07
3G3RV-PFS5972-35-07
3G3RV-PFS5972-60-07
3G3RV-PFS5972-70-52
3G3RV-PFS5973-100-07
3G3RV-PFS5973-130-35
3G3RV-PFS5973-160-40
3G3RV-PFS5973-240-37
3G3RV-PFS5973-35-07
3G3RV-PFS5973-60-07
3G3XV-A2001-EV2
3G3XV-A2002-EV2
3G3XV-A2007-EV2
3G3XV-A2015-EV2
3G3XV-A2022-EV2
3G3XV-A2037-EV2
3G3XV-A4002-EV2
3G3XV-A4004-EV2
3G3XV-A4007-EV2
3G3XV-A4015-EV2
3G3XV-A4022-EV2
3G3XV-AB001-EV2
3G3XV-AB002-EV2
3G3XV-AB004-EV2
3G3XV-AB022-EV2
3G3XV-AB037-EV2
3G3XV-PJVOP110
3G5A2-IA121-E
3G5A2-IA121-PE
3G5A2-ID001-PE
3G5A2-IM211-E
3G5A2-IM211-PE
3G5A2-OC221-E
3G5A2-OC221-PE
3G5A2-OD411-PE
3G5A2-OF002-050
3G5A2-OF002-100
3G5A2-OF002-150
3G5A2-OF002-200
3G5A2-OF002-300
3G5A2-OF002-400
3G5A2-OF002-600
3G5A2-OF002-800
3G8B3-DRM21-E
3G8E2-DRM21-EV1
3G8F5-CLK21-E
3G8F5-SLK21-E
3G8F7-CLK12-EV1
3G8F7-CLK21-EV1
3G8F7-CLK52-EV1
3G8F7-SLK11-E
3G8F7-SLK21-E
3X2C9-6A
3Z49-LMP FLE9S73(W)4
3Z49-LMP LM-100
3Z49-LMP LM-50
3Z4L-C5000
3Z4L-C6000
3Z4L-S501R
3Z4L-S503R
3Z4L-S506R
3Z4L-S512R
3Z4S-LE B1214D-2
3Z4S-LE B2514D
3Z4S-LE B5014A
3Z4S-LE B618CX
3Z4S-LE B7514C
3Z4S-LE C1614A
3Z4S-LE C418DX
3Z4S-LE C815B
3Z4S-LE EX-C6
3Z4S-LE MML2-65
3Z4S-LE MML4-65
3Z4S-LT MFL-015A
3Z4S-LT MHF-100L
3Z4S-LT MHF-H50LR
3Z4S-LT MKG50-1500S
3Z4S-LT MKP180-1500S
3Z4S-LT MLK-50
3Z4S-LT MLP-180
3Z4S-LT MLZ-100
3Z4S-LT MPP60-1500S
3Z4S-LT MRG31-1500S
3Z4S-LT MRG61-1500S
3Z4S-LT MSG-1100S
3Z4S-LT MWG-1000S
3Z4S-LT MWG-500R
3ZBD3-1N
3ZBD3-2
3ZBD3-4N
3ZBD4-1N
3ZBD4-4N
3ZBQ2-1N
3ZBQ2-2
3ZBQ2-4N
3ZBQ3-1N
3ZBQ3-2
3ZBQ3-4N
4ZBD3-1N
4ZBD3-2
4ZBD4-1N
4ZBQ2-1N
4ZBQ2-2
4ZBQ2-4N
4ZBQ3-1N
4ZBQ3-2
5ZBQ2-2
5ZBQ3-4N
61F-03B
61F-04B
61F-11
61F-11D
61F-11H
61F-11L 2KM
61F-11L4K
61F-11N
61F-11ND
61F-11NH
61F-11NL 2KM
61F-11NL 4KM
61F-11NR
61F-11T
61F-AN AC110
61F-AN AC120
61F-AN AC220
61F-AN AC240
61F-APN2 AC100V
61F-APN2 AC110V
61F-APN2 AC200V
61F-APN2 AC220V
61F-G 110/220VAC C
61F-G AC100/200
61F-G AC110/220
61F-G AC120/240
61F-G AC220/380V
61F-G1 110/220VAC C
61F-G1 AC110/220
61F-G1 AC120/240
61F-G1 AC220/380
61F-G1D AC110/220
61F-G1H AC110/220
61F-G1L AC110/220 2KM
61F-G1L AC110/220 4KM
61F-G1N AC110/220
61F-G1N AC120/240
61F-G1ND AC110/220
61F-G1ND AC120/240
61F-G1NH AC110/220
61F-G1NH AC120/240
61F-G1NL AC110/220 2KM
61F-G1NL AC110/220 4KM
61F-G1NL AC120/240 2KM
61F-G1NL AC120/240 4KM
61F-G1NR AC110/220
61F-G1NR AC120/240
61F-G1P 220AC