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Specializing In  Circuit Breakers & Transfer Switches!

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Motor Coach ~ RV ~ Marine
Automatic Transfer Switches - Todd Engineering Replacements

 Section #1... Model TS-30, 30S & TS-50, 50S.... For Marine or RV Applications 

A... 17-REL30030 Replaces Todd TS-30S  

B... 17-REL30050MRD Replaces Todd TS-50S  

Part Number 17-REL30030 ~ Replaces TS-30S Part Number 17-REL30050MRD ~ Replaces TS-50S
3 Wire, 120Vac, 30A  30 Amp Max 3 Wire, 120Vac, 50A  50 Amp Max
4 lbs.  6.5 x 6.5 x 3.5  5 lbs.  7.5 x 8.5 x 4 
TS-30 Electrical Drawing Timer Pcb & Component Layout TS-50 Electrical Drawing
Automatic Transfer Switches
 

 Section #2... 50 AMP Model.... 2 or 3 Wire For Marine or RV Applications 

AUTOMATIC SWITCHOVER: Switch from power cord to generator simply by starting generator!  
A... 17-REL35050 Heavy Duty Relay Overview *  B... Electrical Overview - 35050 & 35075   

          

   

Click To Enlarge
 

  Click To Enlarge

Part Number Description  Generator or Inv Dimensions  Wt.
17-REL35050 * 2 or 3 Wire 50 Amp Max 8" w x 9" h x 5" d 12 Lbs
 
* This Part Number Is Currently Superseded By 17-REL36050... See Below...
 
Automatic Transfer Switches
 

 Section #2 A... 50 AMP Model.... 2 or 3 Wire For Marine or RV Applications 

AUTOMATIC SWITCHOVER: Switch from power cord to generator simply by starting generator!  
A... 17-REL36050 Heavy Duty Relay Overview  B... Electrical Overview - 17-REL36050   

          

   

Click To Enlarge
 

  Click To View
Electrical Drawing

 

Part Number Description  Generator or Inv Dimensions  Wt.
17-REL36050 2 or 3 Wire 50 Amp Max 8" w x 9" h x 5" d 12 Lbs
Replaces Todd TS30-30 Units
Replaces Todd TS-50... 120V 2 Wire/Ground  50 Amp Units
Replaces Todd TS-50S... 240V 3 Wire/Ground 50 Amp Units
Replaces Todd PS250, 260S & 262S... 240V 3 Wire/Ground 50 Amp Units
Automatic Transfer Switches

 

 Section #2 B... 30 & 50 AMP Models... 2 or 3 Wire For Marine or RV Applications 

AUTOMATIC SWITCHOVER: Switch from power cord to generator simply by starting generator!  
A... Transfer Sw 30A & 50A-120v... MRD Series B... Transfer Sw 50A-120/240v... BRD Series  
Electrical drawing for LPT-50MRD Series Designed with a terminal block to simplify connections

             

      Click To Enlarge
 

    Future Click To Enlarge

Part Number Description  Generator or Inv Dimensions  Wt.
17-REL30030MRD 30A - 2 Wire/Grnd 30A-120v 6" w x 6" h x 3" d 5.0 Lbs
17-REL30050MRD 50A - 2 Wire/Grnd 50A-120v 9" w x 9" h x 5" d 10 Lbs
Replaces Todd TS30, TS50
 
17-REL30050BRD 50A - 3 Wire/Grnd 50A-120/240v 9" w x 9" h x 5" d 10 Lbs
Replaces Todd 245L, 245S, 260S & 262S Units - 50 Amp - 120/240V 3 Wire/Ground 
Designed with a terminal block to simplify connections
Automatic Transfer Switches
 

 Section #2 C... 50 AMP Inverter Model.... 2 or 3 Wire For Marine or RV Applications 

AUTOMATICALLY Switch from power cord to generator to inverter...  
A... 17-REL36350 Heavy Duty Relay Overview  B... 17-REL36350 Electrical Overview 


   Click To Enlarge
 

  Click To Enlarge

Part Number Description  Generator or Inv Dimensions  Wt.
17-REL36350 2 or 3 Wire 50 Amp Max 12" w x 12" h x 6" d 17 Lbs
  Coil Volts 120 Ac      
         
Replaces Todd PS 2-262
Automatic Transfer Switches
 

 Section #3... 75 AMP Model.... 3 Wire For Marine or RV Applications 

AUTOMATIC SWITCHOVER: Switch from power cord to generator simply by starting generator!  
A... Overview 75 Amp Heavy Duty Transfer Relay B... 17-REL35075 Electrical Overview    

 

Click To View

 

 

Click To View

 

Part Number Description  Generator or Inv Dimensions  Wt.
17-REL35075 3 Wire 70 Amp Max 12 w x 8" h x 4" d 12.0 Lbs
Replaces Todd PS-275
Call For Spec & Pricing
Automatic Power Transfer Switches
 

 Section #4... 100 AMP Model.... 3 Wire For Marine, RV, Motor Coach & Specialty Vehicle 

AUTOMATIC SWITCHOVER: Switch from power cord to generator simply by starting generator!  
A... Overview 100 Amp Heavy Duty Transfer Relay   B... Electrical Overview 100 Amp Unit


     

Click To Enlarge Graphics
 

Click To View
Electrical Drawing
 

Part Number Description  Generator or Inv Dimensions  Wt.
17-REL36100 * 3 Wire 100 Amp Max 12" w x 12" h x 6" d 15.0 Lbs
* Discontinued & Superseded By... 17- REL36100-A  See Section 4A Below
Automatic Power Transfer Switches
 

 Section #4A... 100 AMP Model.... 3 Wire For Marine, RV, Motor Coach & Specialty Vehicle 

AUTOMATIC SWITCHOVER: Switch from power cord to generator simply by starting generator!  
A... Overview 100 Amp Heavy Duty Transfer Relay   B... Electrical Overview 100 Amp Unit


     

Click "Overview & Electrical Drawing" For Graphic

Section 4B ------------------------------->
 

Operation & Electrical

Overview & Electrical Drawing

Part Number Description  Generator or Inv Dimensions  Wt.
17-REL36100-A 3 Wire/Grnd 100 Amp Max 12" w x 10" h x 4" d 14.0 Lbs
Call For Pricing
Automatic Power Transfer Switches
 

 Section #5... Delay Timers... Todd & Replacement Automatic Transfer Relays

Timer delays relay or contactor closing for 20-30 seconds to provide generator warm up period.
A... 120V AC to DC-4 Terminals   B... 120V AC to AC-4 Terminals   C... 120V AC to AC-4 Terminals D... 120V AC to AC-10 Terminals

Click To View OLD STYLE Timer
 PIC & PCB Component Layout

REPLACED By PN: 17-TIM3050

Click To Enlarge Graphic
ES50M-65N Units

  

Click To Enlarge Graphic
Todd PS-250 (old units - 1986)


Click To Enlarge Graphic
LPT50CA Units

 


Click To  View NEW STYLE Timer
 PIC & PCB Component Layout
 PN: 17-TIM3050

 

Click To Enlarge Graphic

Voltage operating range... 95-135V AC (Cutout @ 78-85v)
P/N... 17-TIM3050 P/N... 17-TIM5050M  OBSOLETE PN... 17-TIM3050-2 P/N... 17-TIM5050
4 Terminals 8 Terminals 4 Terminals 10 Terminals
Dim... 3.0" W x 1.4" H Dim: 1.5" w x 5.5" h Dim: 3.0" w x 2.0" h Dim: 5.0" w x 2.0" h x .68" d
    REPLACED BY...
PN: 17-TIM3050-A *
 
Todd TS-30 & 50  ES50M-65N  LPT-50CA
Todd PS-245S, 260S, 262S, 450S & 850S    Wiring Diagram  
    * 4 Wire Leads Required **
** PN: 17-TIM3050-L
 
Connect coil wires to terminals J1=DC- & J2=DC
Connect AC power wires to terminals J3 & J4
   
Automatic Transfer Switches
 

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 Revised:03/18/2014 07:49:32