可用万能表R×10Ω档测量继电器线圈的阻值，从而判断该线圈是否存在着开路现象。
测量吸合电压和吸合电流
找来可调稳压电源和电流表，给继电器输入一组电压，且在供电回路中串入电流表进行监测。慢慢调高电源电压，听到继电器吸合声时，记下该吸合电压和吸合电流。为求准确，可以试多几次而求平均值。

厦门市哲控工业设备有限公司
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3RT2325-1AP00-ZX95
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ETS7246-A-000
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ORE-V
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9001-KYSS3Y35
474925 PNOZ 7 24 V DC
LT1750M-R16-P-LI0EX-PVDF
3RT2016-2WB42
IG-3008-APKG
KI5006
NI40U-CP40-VP4X2
3RT1054-1AR36
XPT:8PT9999
3RT1016-5BB45-0KS0-ZW96
MK1-22UP-EX0/24VDC
PN-100-SBR14-HFPKG/US/V
XPT:8PT182
6GK1411-2AB20
XPT:8PT5952
3TC4417-4AP4
3RK1903-0AC10
7ML1998-1GL31
3RT1916-4KA1
PNOZ X7 48VAC 2n/o
3RT1944-5AH01
3RT1015-1BD42
3RA2922-1A
II0311
IFKC007-ASKG/M/V4A/US-104-DRS
PF-,25-REA01-MFRKG/US/P
9007BA1
IN-3004-BPKG/3,5M/US
PN-025-RBR14-HFPKG/US/V
6SE7041-1WM84-1CF0
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PK-100-SFG14-HCPKG/US/W
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HGP26060
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3NA6244-6
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IF-5515C
HDA3800-A-100-124(10m)
3RV1021-0FA10
XPT:8PT4725
3RT2026-2NB30
XPT:8PT24873
PNOZ X2P 48-240VACDC 2n/o

7ML1930-1BS
3RK1395-6KS71-3AD0
3RA1120-1EC24-0AP0
PB-100MSBR14-HFNKG/US/V
XPT:8PT30897
3TH4364-0AH0
OUN-HPKG
3RT2526-2AF00
PN5000
KHF3617521DCU
7ML1930-1CX
3VF6211-1BM44-1JA0
3RA1324-8XB30-1AL2
9007CB34S1
BI8-M18-AN6X-H1141
3TF2922-0AB0
6RY1803-0GA00
3RT2017-2AB01
3RS1041-1GW50-0FB0
XPT:8PT593
3RA1130-4EB34-0AB0
BI10R-W30-DAN6X-H1141
3RK1205-0BQ21-0AA3
6GT2491-0DN20
C74453-A56-B104
XPT:8PT8297
9001-KYK33
3RT1065-2AF36
3RT1944-5AK61
XPT:8PT12169
XPT:8PT20978
3RT2025-1AN10
3RT1025-1AL00
OJP-FPKG/FO/AS
3RA2425-8XH32-2BB4
3RT1036-3AL20-ZW97
XPT:8PT7698
OI5002
3TF2001-0DB4
3TH2082-0GU4
3RT1075-2AD36
3RK2400-1FG00-0AA2
3RT1336-1AP00-4AA0
BI15R-Q14-AP6X2-H1141
3RK1325-6KS41-3AA0
3RT2024-2AP04-ZX95
3RT1024-1BW44
3RA2318-8XB30-2AF0
XPT:8PT1026
HDA4445-A-600-000
3TX7003-2AF00
3VF3211-1BU41-1GC1
XPT:8PT10216
3RN1012-1CB00
3RA1220-1DD24-0AP0
3RF2050-1AA06
BI5-M18-VP4X
3RH1921-1FE11
XPT:8PT12433
3RT1025-1BF40
XPT:8PT20028
3RH2440-1BB40
3RT1025-1AC20-ZW96
A5E00117419
6SY7010-2AA21
XPT:8PT22835
9007C52D
7ML1998-5DN01
OG5017
C73451-A430-D55
3TH4262-0AL1
6SE7087-2AK85-0AA0
9007BA11
3RT2017-1AN62
XPT:8PT11029
IGA2008-FRKG/6M/PH/3D
3RT1024-1AL00
9007CA4S
BI10-G30-Y1X
XPT:8PT9894
3RT1026-3AK60-1AA0
ITB3002BAPKG/V4A/AS-514

KHF3625026MU
3RA2110-0KD15-1BB4
IM9208
6SE7041-3TL84-1GG0
6ES7322-1FH00-0AA0
PSEN op4B-L-2-050
XPT:8PT672
3RT2028-4AK60
3RT2016-2KB41
XPT:8PT17075
3TC4817-0AF4
3RT1446-1AG60
BI5-G18-AN6X-B1341
3RA1941-1B
3RV1721-1HD10
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474910 PZE 5 24 V DC 4S1?
3RT2016-1BF41
C79000-G5278-C216
3RT1017-2BP41
7MH4106-5HC01
LT700M-Q21-LC-LI0-H1141
3UF1843-2AA00
NI15-S30-AZ3X/S97
BI1-EG05-AP6X-V1331
PF-025-SEB34-KFPKG/US/P
3TC4417-4AM4
C71450-A180-A11
3RT2916-1BF00
HDA3840-A-400-124(10m)
XPT:8PT1374
LI5042
3RT1025-3AB00-ZW98
9001-OA12
3VF3211-1BW41-2PC2
3RT2026-1BB40
6SE7035-4HF85-0EA0
3TK2827-1BB40
9007CR61J
3TH2040-0BQ4
3RT1026-1AF00
9007C52N
PL2658
3RT2025-1AD04
MEK3060-BPKG/AS-514-TPS
IN505A
FCL34045
3RT1044-3AR60
KAL26150V1212
OHP-DPKG/0,20M/AS
3RT1045-3XF00-0GA0
3RA1315-8XB30-1AF0
3RF2440-1AC45
BI3-Q06-AN6X2
6SY7000-0AB63
3TH2031-0AD0
3VF7212-2DM30-0AA0
XPT:8PT14208
9007C62J
9001-70W
7ML1998-1CL21
7ML1998-1DT01
3RV1041-4LA10-0FH0
PNOZ e1p C 24VDC 2so
XPT:8PT453
3RT2016-2AH01
3RT1046-3AF06
HDA4446-A-600-000
6GT2401-2BB00
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9001-D4G4S
C72453-A315-B23
3RT2024-1NP30
3RK1325-6LS41-0AA3
874130B PNOZelog? Driver CD
PN-250-SBM12-HFPKG/US/V
3RT1955-5AU32
XPT:8PT10376
IF-3004-APKG
3VF3111-3BQ41-0AC1
OU5035
3RT1025-1AH20
OBF-FPKG/AS-610
6SY8101-0AB07
3RT2028-2AP00-ZX95
3TF2222-1BF4
BI20U-CK40-AN6X2-H1141
3RV1421-4AA10
EDS3316-3-0016-000-E1
XPT:8PT1295
BI5-M18T-AP6X
XPT:8PT13238
BI2-EG08-VP6X-H1341
PNOZ ml1p safe b
3TH2031-0BB4
3RH2122-1BF40-0AA6
3TH4262-0AJ1
9001-L16
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XPT:8PT2614
XPT:8PT18333
NI12U-EG18SK-VN4X
3RT1024-1BN40
3RH2140-1HB40
3RT1975-5NP31
MK13-22AEX0-R/24VDC
IF5959
3TX7005-1LF00
3RA1923-2AA00-0KS2-ZW96
LHL26300
3NE1332-0
3RT2018-2BW42
EDS3146-1-02,5-000-F1
3RT2028-2BW40
630109 PSEN op2H-30-150
3RT1035-1BB44
3RT1016-1JB41-ZX95
3UF7946-0AA00-0
6SL3945-5NN41-8AF0
3RT1075-2NP36
3RT1064-2AT36
XPT:8PT11921
XPT:8PT24627
Set spring term mi1p/mi2p/mo1p/mo3p/ml1p
3RT1034-1AH24
3RT1045-3EL28-0KS8
570232 PSEN me3.2? / 2AR
BI20R-Q14-AP6X2
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7ML1830-1JP
PY7002
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3RT2924-5AB01
3RA2210-0KH15-2BB4
3RK1301-0CB13-0AA4
3RT1945-5AK62
HDA 4446-A-400-000
3TF2001-0JB4
LT250M-Q21-LU2X3-H1141
NI5-EM12WD-AP6X
DNI12U-M18E-AP4X3
XPT:8PT13631
6SB2073-1CA00-0AA0

3RT2015-1BF41
3TH2262-0BF4
3RA1415-8XB31-1AF0
3RH2140-4BB40
3RT1935-5AG61
XPT:8PT10883
3RA1110-1KF15-1AB0
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3NE3637
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3RT1916-1BD00
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3RT1264-6AP36
9001-D4G2XR
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3RT2018-2BM42
IG5949
3TX4411-2A
XPT:8PT6293
HDA4446-A-600-000
6RY1242-0CA10
XPT:8PT17339
C79000-G5200-C216
3RA2210-1FH15-2AP0
9001-KYSK201
3RA2210-0DD15-2AP0
OJPGFPKG/FO/0,15M/US
XPT:8PT2033
A5E00141523
3RT2024-1CK64-3MA0
3RT2028-2AC24
XPT:8PT14016
3TH4244-0BV4
XPT:8PT11880
LHL36225
3TH4373-0AB0
3RT1526-1BM40
3RT2024-1BB44-3MA0
EDS3148-5-01,0-000-F1
PI-2,5-REA01-KFPKG/US/P
OG0013
3RA1220-1FB24-0AB0

7MF1570-5NA02
3RA2326-8XB30-2AG2
3RP1505-1AP30
3RT1017-2BM42
IFK3004BBPKG/M/US-104-DPSB01
3RT2016-1AP02-ZX95
XPT:8PT30887
XPT:8PT4022
KI-2015-BBOA/NI/29’RT
HDA4346-A-0040-000-F1
7ML1998-5BD12
3RT1934-5AP61
XPT:8PT235
IFM216
XPT:8PT16941
6ES7400-0HR51-4AB0
XPT:8PT13690
LAL26200
BI2-EH6,5K-AP6X
3RT2017-1AH01
3RF2320-2AA26
3RA2220-4BD26-0AP0
3RA1220-1CD24-0AP0
6RY1802-0AA07
PNOZ e3vp 10/24VDC 1so 1so t
XPT:8PT22437
3RT1975-5AS31
EDS345-1-006-000
3RT1064-2AD36
PNOZ 2 230VAC 3n/o 1n/c
3RA1126-4AD26-7BB4
MK91-R11/24VDC
3RT1934-5AC22
NI50U-CP40-VP4X2
HDA4744-A-160-000
XPT:8PT9261
3RT1046-3AN60
9001-SK43J38LGFG
ED63A040
3RA1125-0GL16-4BB4
6RY1705-0CM00
3RT1934-5AV62
A5E00123069
3NA7250-6
3RT1064-6NB36
3RT1934-5AB01
IN-3002-BPKG/10M
HDA 5500-0-2-AC-000
JJL36250
XPT:8PT16229
3RF2350-3AA06
6GK1288-1SB20
3NA7240-6
BI8-M18-LIU
XPT:8PT12438
PN4226
3RT1316-2AN60
NI15-S30-AN6X
PCANdn 24VDC
ED61B020BP
3RT2326-1AC20
HLL36050
XPT:8PT30733
3RV1041-4JA10-0FH0
HDA3840-A-100-124(6m)
BI5-G18-AP6X-B1341
PSEN 1.1p-10/PSEN 1.1-10/3mm  1unit
XPT:8PT5120
3RT2018-1AP02-ZX95
IF530N
XPT:8PT30801
3RT1035-3XF06-0GA0
3RT2926-2PA01-0MT0