Relay selection guide

For easy selection of the correct relay for your application first select the functionality below.
You will scroll down automatically to the relay group of your choice.The next step is defining the number of contacts and rated current.
Click on the relay series of your choice for more information.

Explanation about the different relay platforms

Click here to read a detailed explanation about the different available relay platforms.

Select the relay functionality:

 

Instantaneous Relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
D-U200 D 4 C/O 10 A DC option option Product details
D-U200-W D 4 N/O - N/C 10 A DC yes option Product details
D-U300 D 4 C/O 10 A AC no option Product details
DGG-U200 D 2 C/O 10 A DC no option Product details
D8-U200 D 8 C/O 10 A DC no option Product details
A 400 A 4 C/O 8 A DC or AC option no Product details
AG 400 A 4 C/O 5 A DC or AC option yes Product details
AK 400 A 4 C/O 8 A DC or AC option no Product details
AM 400 A 4 C/O 8 A DC or AC option no Product details
B 400 B 4 C/O 12 A DC or AC yes no Product details
BG 400 B 4 C/O 5 A DC or AC option yes Product details
BK 400 B 4 C/O 12 A DC or AC yes no Product details
BM 400 B 4 C/O 12 A DC or AC option no Product details
CU/CP-U200-G CU 2 C/O 6 A DC yes option Product details
CU/CP-U300-G CU 2 C/O 6 A AC yes option Product details
CU/CP-U200-B CU 2 C/O 8 A DC yes no Product details
CU/CP-U200-D CU 1 C/O + 1 N/O 6 A DC yes option Product details
CU/CP-U200-U CU 1 C/O 8 A DC no option Product details
CU/CP-U300-U CU 1 C/O 8 A AC no option Product details
C C 9 N/O - N/C 8 A DC yes no Product details
CG C 9 N/O - N/C 5 A DC or AC yes yes Product details
CK C 9 N/O - N/C 8 A DC or AC yes no Product details
CM C 9 N/O - N/C 8 A DC yes no Product details



Latching relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
BD-U200 D 3 C/O + 1 N/C 10 A DC no option Product details
KCD-U200 D 2 C/O 6 A DC yes option Product details
KDN-U200 D 8 C/O 10 A DC no option Product details
SB B 4/3 C/O 8 A DC or AC option no Product details
TFBBU 400 B 4 C/O 12 A DC yes no Product details
KCS/KCP-U200 CU 2 C/O 6 A DC yes option Product details
SC C 8 N/O - N/C 6 A DC yes no Product details


Timer relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
CTD4-U D 4 C/O 10 A DC or AC no option Product details
TDB2-U2001 D 2 C/O 6 A DC  yes option Product details
TDB4-U2001 D 4 C/O 10 A DC no option Product details
TDE4N-U2
D 4 C/O 10 A DC and AC no option Product details
TDBE4-U200/300 1+2 D 3C/O + 1 N/C 10 A DC or AC no option Product details
TBAA 400 1 B 4 C/O 8 A DC no no Product details
TBAR 400 2 B 4 C/O 8 A DC no no Product details
TBAU 400 1 or 2 B 4 C/O 8 A DC or AC option no Product details
TBLAU 400 1 or 2 B 4 C/O 8 A DC option no Product details
TEAU 1 or 2 A 4 C/O 8 A DC option no Product details
TELAU 400 1 or 2 A 4 C/O 8 A DC option no Product details
TBBAO 400 1 B 4 C/O 12 A DC yes no Product details
TBSBAO 400 1 B 4 C/O 12 A DC yes no Product details
TBBOR 4002 B 4 C/O 12 A DC yes no Product details
TBBU 400 1 or 2 B 4 C/O 12 A DC yes no Product details
TBLBU 400 1 or 2 B 4 C/O 12 A DC yes no Product details
NTBBOR 4002 B 4 C/O 12 A DC yes no Product details
THBBU 4001 or 2 B 4 C/O 12 A DC yes no Product details

1 Delay on pull-in

2 Delay on drop-out


Timer & Instantaneous relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
TDDB-U200 1 2 C/O + 2 C/O 8 A DC  no no Product details
TDDB-U300 1 2 C/O + 2 C/O 8 A AC  no no Product details
TDD4B2-U200 1 4 C/O + 2 C/O 10 A / 6 A DC  no option Product details
TTBCA 200 1 1 C/O + 1 C/O 6 A DC yes no Product details
TTBCR 200 2 1 C/O + 1 C/O 6 A DC yes no Product details
TTBCA 400 1 2 C/O + 2 C/O 6 A DC yes no Product details
TTBCR 400 2 2 C/O + 2 C/O 6 A DC yes no Product details

Delay on pull-in

Delay on drop-out


Timer & Monitoring Relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
MTDV4-U200 2 D 4 C/O 10 A DC no option Product details

Delay on pull-in

Delay on drop-out


1-Shot Relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
WDE4-U200 D 4 C/O 10 A DC no option Product details
WDE4-U300 D 4 C/O 10 A AC no option Product details
TPBAU 400 B 4 C/O 8 A DC option no Product details
TPBAUN 400 B 4 C/O 8 A DC option no Product details
TPBBU 400 B 4 C/O 12 A DC yes no Product details

 

 

1-Shot & Instantaneous Relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
WDDE-U200 D  2 C/O + 2 C/O 8 A  DC no no Product details
WDDE-U300 D 2 C/O + 2 C/O 8 A AC no no Product details

2-Shot Relay

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
T2PBAU 400 B 4 C/O 8 A DC option no Product details

Flashing Relays

  Platform Contacts Max. cont current Coil input Safety critical option Low level switching  
FDC4-U200 D 4 C/O 10 A DC no option Product details
FDA-U200 D 2 C/O 8 A DC no no Product details
FDA-U300 D 2 C/O 8 A AC no no Product details
FDA4-U200 D 4 C/O 10 A DC no option Product details
FDC-U200 D 2 C/O 6 A DC no no Product details
FDG-U200 D 1 N/O + 1 N/C n/a DC no no Product details
TCBBU 400 B 4 C/O 10 A DC yes no Product details
T2CBBU 400 B 4 C/O 12 A DC yes no Product details
T2CBLBU 400 B 4 C/O 12 A DC yes no Product details
1019 C 2 N/O n/a DC no no Product details

Monitoring

  Platform Contacts Max. cont. current Coil input Safety critical Low level switching  
DI-U900 D 2 C/O 10 A DC or AC no option Product details
               
               
UMD-U300 D 1 C/O + 1 N/O 6 A AC yes option Product details
IB 200 B 2 C/O 1 A DC no no Product details
UB 001 / 002 / 003 B 1 / 2 / 3 N/O 0.25 A DC no no Product details
UB 200 B 2 C/O 0.2 A DC no no Product details
UB C200 B 2 C/O 3 A DC no no Product details
UB A400 B 4 C/O 5 A DC no no Product details
CU/CP-U900-D CU 1 C/O + 1 N/O 6 A DC or AC yes option Product details
CU/CP-U900-I CU 1 C/O 6 A DC or AC yes option Product details
UTC C 1 N/O 3 A DC no no Product details



Mors Smitt relay Platforms

CU-platform      

Small relays up to 2 change-over contacts. These relays all have the same base of 20 x 30 mm and  different models  are available for different applications.

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D-platform        

Compact multi-functional relays for all different kind of applications. Up to 4 change-over contacts these relays all have the same base of 40 x 40 mm. 8-pole configurations in different types also available.
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A - / B-platform        

Heavy duty multi-functional relays with very long mechanical contact life of 100 million cycles. Up to 4 change-over contacts these relays all have the same base of 45 x 45 mm. Different types available for many different applications. B-relays with higher continuous contact load and higher relay cover than A-relays.
platforms-3.png

C-platform       

Flat multi-functional relays up to 9 change-over contacts and very long mechanical contact life of 100 million cycles. These relays all have the same base of 33 x 65 mm. Different models  are available for different applications.

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