Product Description
Relay time delay tdr40, 24v
Frequently Asked Questions
Q: What is the voltage rating and function of the CR 120103?
A: The CR 120103 is a time delay relay (TDR40) rated for 24 volts. It provides a programmable delay function in Crown electric lift truck control circuits to sequence electrical operations and protect components.
Q: Which Crown equipment models use the CR 120103 TDR40 relay?
A: The CR 120103 is used in Crown electric pallet jacks and lift trucks with 24-volt control systems requiring time delay relay functionality. Confirm your equipment voltage and control circuit design before ordering.
Q: What is the difference between CR 120102 and CR 120103?
A: The CR 120102 is a 12-volt time delay module, while the CR 120103 is a 24-volt time delay relay (TDR40). They are not interchangeable. Select the correct part based on your equipment voltage rating.
Q: What symptoms indicate the CR 120103 relay needs replacement?
A: Signs of time delay relay failure include loss of delay function with immediate motor engagement, no response to control inputs, intermittent operation, or audible relay chatter. These symptoms indicate the relay contacts or timing circuit have failed.
Q: Can the CR 120103 be used in 12-volt Crown equipment?
A: No. The CR 120103 is rated for 24 volts only. Using this relay in 12-volt systems will cause malfunction or damage to the control circuit. Verify your equipment voltage before installing this part.
Q: What is the typical lifespan of the CR 120103 TDR40 relay?
A: Time delay relay lifespan depends on control circuit switching frequency and electrical loads. Relays in heavy-use applications may need replacement every 2-3 years, while moderate-use equipment extends service life to 4-5 years or longer.