Overview
The Amperite 50C30 time delay relay is a proven thermostatic delay component designed for industrial control and automation circuits. The “C” designation indicates a normally closed contact form with delay on break (1 form B SPST), while the “30” specifies the factory-preset delay time of 30 seconds. This relay is rated for 50V heater voltage, one of the standard voltages available in the Amperite thermal relay family.
Key Features
- Compatible with AC, DC, and pulsating current
- Hermetically sealed design, unaffected by altitude or moisture
- Heater consumes approximately 2W and may be operated continuously, with a minimum life of 5000 hours
- 8-pin octal socket mounting for easy installation and replacement
- Precision timing control with automatic voltage regulation on low-voltage heaters
- SPST normally closed configuration for delay-on-break applications
Technical Specifications
- Part Number: 50C30
- Heater Voltage: 50V AC/DC
- Contact Form: SPST (Single Pole Single Throw)
- Contact Type: Normally Closed (Delay on Break)
- Delay Time: 30 seconds (factory preset)
- Package: 8-Pin Octal
- Heater Wattage: Approximately 2W
- Minimum Life: 5000 hours
- Operating Principle: Thermostatic (bimetal heater-actuated)
Typical Applications
Amperite time delay relays, flashers and controlling devices are used in electronic distribution and original equipment manufacturer (OEM) applications. Common uses include:
- Industrial equipment startup sequencing and soft-start delay circuits
- Protective time delay functions in power distribution and motor control
- Electronic equipment initialization and warm-up delay circuits
- Automated switching and relay circuit timing functions
- Alarm and detection system timing control
Compatibility & Replacements
Compatible With
- Standard 8-pin octal relay sockets
- Industrial control panels and switchboards
- Equipment requiring 50V heater supply
- AC and DC powered circuit applications
- Circuits requiring normally closed delay-on-break operation
Replaces / Drop-In Replacement For
- Verify compatibility with your original equipment specifications before ordering. The 50C30 designation is specific; substitution should be confirmed with system documentation or your integrator.
Works With
- Standard 8-pin octal relay sockets and bases
- Low-voltage DC and AC control circuits
- Industrial PLC and automation relay logic systems
- Protective relay schemes and time-delay circuits
- Legacy equipment utilizing octal-style relay packages
