The PELC PT521 is a multi-function time relay for DIN rail installation, offering both ON Delay and OFF Delay modes. The delay period is continuously adjustable from 0.1 seconds to 30 hours, covering a wide range of automation and control applications. It accepts a supply voltage of 24–240 VAC/DC and occupies a single DIN rail module (1M wide).

Output is via a single changeover contact rated at 8A/2000 VA (NO: 8A, NC: 6A). The unit is housed in a compact 9.0 × 5.8 × 1.9 cm enclosure, weighs 0.1 kg, and is rated IP20 for indoor panel installation.

Key Features

• ON Delay and OFF Delay functions in a single unit
• Adjustable delay from 0.1 sec to 30 hours
• Wide supply range: 24–240 VAC/DC
• Single changeover output contact: 8A/2000 VA (NO: 8A, NC: 6A)
• DIN rail mounting, 1M wide

Product Benefits

• Both ON and OFF delay modes eliminate the need for two separate relays in time-sequenced circuits
• 24–240 VAC/DC supply range covers most industrial and domestic panel voltages without additional components
• Repeatability error of ±0.1% ensures precise and consistent timing across activations
• Reset time ≤150 ms allows rapid re-triggering in fast-cycling applications
• 1M DIN rail width keeps the panel layout compact

Technical Specifications

• Model: PELC PT521
• Nominal Voltage (Un): 24–240 VAC/DC
• Operating Range: (0.9–1.1) × Un
• Operating Frequency: 50/60 Hz
• Output Contact: 1 changeover, 8A/2000 VA (NO: 8A, NC: 6A)
• Repeatability Error: ±0.1%
• Reset Time: ≤150 ms
• Delay Range: 0.1 sec – 30 hours
• Ambient Temperature: -5°C to +50°C
• Dimensions: 9.0 × 5.8 × 1.9 cm
• IP Rating: IP20
• Mounting: DIN rail, 1M wide
• Weight: 0.1 kg

Why You'll Love It

• One device covers both delay-on and delay-off functions — reduces panel component count
• 0.1 sec to 30-hour range handles everything from short motor-start delays to extended ventilation timers
• Terminal-block wiring with DIN rail clip makes installation and replacement quick
• Package includes: 1× PELC PT521 Delay Relay 1sec–30h DIN rail