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The Selec TC513A, TC513AX, TC513BX, and TC513CX are a series of compact, 3-digit digital temperature controllers for industrial and commercial use. The different suffixes—A, AX, BX, and CX—denote slight variations in features, particularly regarding the specific type of relay output and output configuration. Common features

• Sensor input: All models support multiple sensor types, including thermocouples (J, K, T, R, S) and RTD (Pt100).
• Control modes: The controllers can be configured for either basic ON-OFF control or more advanced auto-tune PID control.
• Single set point: Each unit uses a single set point to regulate temperature.
• Output: The devices provide a control output through a relay or a solid-state relay (SSR) driver.
• Display: A single, 3-digit, 7-segment LED display is used to show the temperature.
• Power supply: They are designed for a wide universal supply voltage of 90 to 270V AC/DC.
• Dimensions: All have a compact, 48 x 48 mm panel-mount size.
• Compliance: The series is CE, RoHS, and UL certified

The TC303AX and TC303CX are single-display, single-setpoint digital temperature controllers manufactured by Selec Controls. They are primarily used for industrial applications requiring basic, accurate temperature regulation, such as in ovens, furnaces, packaging, and plastic processing. The key distinction between the two models is the size and display configuration: 

• TC303AX: Features a single 3-digit LED display and a compact 48 x 48 mm size.
• TC303CX: Also has a single 3-digit LED display but is a larger 96 x 96 mm size

The Selec 800SD-2 is a star-delta motor starting timer designed for use with three-phase induction motors. It manages the transition between star (Y) and delta (Δ) configurations to reduce starting current and stress on the motor. The 800SD-2 is an analog timer that mounts on a 22.5mm DIN rail and features LED status indicators

Product: 600PSR

•  Monitors Phase Sequence,Phase Failure & Phase Asymmetry
• 3P - 3W wiring configuration
• Relay output: 1 C/O SPDT
• Supply voltage: 154-500 V AC (L-L)
• Mounting : DIN-raiL

The Selec MA302 is a digital ammeter used for measuring current in industrial electrical applications. It features a bright, 4-digit LED display for single-phase, 2-wire electrical networks. The ammeter can be programmed for various current transformer (CT) primary ratings

The Selec MA302 is a digital ammeter used for measuring current in industrial electrical applications. It features a bright, 4-digit LED display for single-phase, 2-wire electrical networks. The ammeter can be programmed for various current transformer (CT) primary ratings. Key specificationsAccording to the Selec Controls and Voltkart websites, the MA302 has the following specifications: 

• Display: 4-digit, 7-segment LED
• Electrical connection: Single-phase, 2-wire
• Accuracy: ±0.5% of full scale
• Programmable CT primary: 5 to 4000 A (in programmable steps)
• CT secondary: Fixed at 5A
• Supply voltage: 240V AC ±20% or 110V AC ±20%
• True RMS measurement: Yes
• Size: 96 x 96mm (panel mount)
• Certifications: CE and RoHS (UL also available on some variants)