Power Controllers improve process performance and save on energy costs. Covering all types of load and voltage, these reliable products offer features such as high performance alarm strategies and advanced diagnostic load fault detection. Southern Heat offers a range of Mercury and Solid State Relays.
Browse through our products below or Contact Us to discuss your project.
Mercury Relays
Mercury Relays use mercury as the switching element and are able to handle constant cycling. Mercury relays are known for being durable and handling difficult and dirty environments. 1 Pole, 2 Pole, and 3 Pole Relays are available.
- Hermetically sealed housing
- Virtually maintenance free operation
- UL, CSA, TUV, and CE approved
- Temperature range of -35° F to 85° F
- Metal strapped for strength
Crydom Series 1 Solid State Relays
Solid-state relays (SSR) have no moving parts or switching contacts allowing them to turn on and off faster and providing longer service lives than mechanical relays. They use semiconductors that activate when an input voltage is applied and are unlikely to be disturbed by environmental factors like shock, vibration, and electronic noise.
- AC or DC control
- Series 1 product family
- SCR output
- Life expectancy of 1 billion operations
- Panel mount
- Zero Cross switching standard
Crydom 3-Phase Solid State Relays
These 3-Phase Solid State Relays are ideal for 3 phase loads in a Delta or Wye configuration where only one control signal is required.
- AC/DC control
- SCR output
- 25-50 Amps
- Status Indicator LED
Crydom CMRD Series Solid State Relays
The Series CMRD solid state relays utilize Crydom’s proprietary thermal management technology providing a compact and efficient design. Built-in DIN rail attachment, easy-to-use cage type terminals, LED status indicator and heat sink complete the package.
- AC/DC control
- SCR output
- 35-65 Amps
- Status Indicator LED
- 240/480/660 Vrms
- AC Switching
- Integrated heat sink
Watlow DIN-A-MITE A
The DIN-A-MITE® A power switching device controller is designed and manufactured with quality features expected from Watlow. DIN-A-MITE A capabilities include single-phase zero-cross switching up to 25 amperes at 600VAC (see rating curve). A unique integrated design removes the guesswork associated with selecting a proper heat sink and adequate terminations for the application. DIN-rail and back panel mounting is standard on this family of power switching devices. The DIN-A-MITE is also mercury free. Variable time base, 4-20mA process control or VAC/VDC input contactor versions are available. All configurations are model number dependent and factory selectable. This power controller includes 200KA short circuit current rating (SCCR) tested up to 480VAC to prevent arc flash with required fusing.
Watlow DIN-A-MITE B
The DIN-A-MITE® B is a low-cost, highly compact and versatile solid state electric heat controller. The DIN-A-MITE B capabilities include single-phase and three-phase zero-cross switching up to 40 and 22 amperes, respectively at 600VAC (see rating curve). This electric heat controller’s design includes proper heat sinking and terminations simplifying integration into applications. DIN-rail and back panel mounting is standard on this electric heat controller. The DIN-A-MITE controller is also mercury free. Variable time base, 4-20mA process control or VAC/VDC input contactor versions are available. A shorted silicon controlled rectifier (SCR) alarm option is also available. All configurations are model number dependent and factory selectable. This power controller also includes 200KA short circuit current rating (SCCR) tested up to480VAC to prevent arc flash with required fusing.
Watlow DIN-A-MITE C
The DIN-A-MITE C silicon controlled rectifier (SCR) power controller provides a low cost, compact and versatile solid state controller option for controlling electric heat. This solid state controller is designed and manufactured with the quality features expected from Watlow. DIN-rail and standard panel mounting plus a cabinet thru-wall mount version are available. Basic features of the solid state controller include single-phase, three-phase/two leg, and three-phase/three leg, 24-600VAC operation. Current switching capabilities range from 30 to 80A depending on the model ordered. Variable time base, linear voltage and current process control or VAC/VDC input contactor versions are available. Single-phase, phase angle firing and current limiting are also available. All configurations are model number dependent and factory selectable. This solid state power controller includes 200KA short circuit current rating (SCCR) tested up to 480VAC to prevent arch flash with required fusing.