Industrial / Control Panels
SJE Rhombus TimeZone Digital Timer Control Panel
Quick guide for the SJE Rhombus TimeZone digital timer control panel. Learn about installation, specifications, component identification, and operating features for this NEMA 4X rated timer.
Table of contents
Quick guide from the manual
The SJE Rhombus TimeZone is a digital timer control panel designed for applications requiring dependable on/off timing cycles, such as pool pumps, irrigation systems, and lighting. It features a large LCD display, a rotary dial for easy programming, and a super capacitor that provides up to 5 days of power backup without the need for batteries.
Panel Components
- Enclosure: NEMA 4X (ultraviolet stabilized thermoplastic) suitable for indoor or outdoor use, measuring 20.32 x 15.24 x 10.16 cm.
- Padlockable Latch: Provides added security.
- Mounting: Integral mounting feet.
- Circuit Breaker: Integrated breaker for pump disconnect and branch circuit protection.
- Display: Large LCD timeclock display visible in direct sunlight.
- Selector Switch: ON/OFF/AUTO selector switch for manual override and operation.
- Ground Lug: Included for electrical grounding.
Specifications
Operation: Four timers (4 x ON/OFF cycles per day) available.
Input Voltage: 100 to 250 VAC, 50/60Hz.
Pump Ratings: 110/230 VAC, 50/60Hz.
- 20A CB Model: 0-12 FLA.
- 25A CB Model: 9-20 FLA.
Power Relay: 2-pole, 25A rated.
Operating Temperature: -10°C to 50°C.
Clock: Real-time clock with super capacitor power backup (5 days).
Accuracy: Turn ON/OFF time set accuracy of 1 second.
Enclosure Rating: Thermoplastic, IP65.
Operation and Maintenance
The unit is designed for simple operation using the rotary dial and LCD interface. The built-in circuit breaker allows for easy maintenance and load disconnection. The enclosure is weatherproof, but ensure the padlockable latch is secured if required. For pricing or quotes, contact the factory or visit the official website.
Practical help
Common problems
Power outage exceeding backup capacity
The super capacitor provides backup for up to 5 days. If power is out for longer, the clock settings may need to be reset.
Load compatibility issues
Ensure the pump/motor Full Load Amps (FLA) matches the specific circuit breaker model installed (0-12A for 20A CB model or 9-20A for 25A CB model).
Before use
- Verify input voltage is between 100-250 VAC.
- Confirm the pump/motor FLA is compatible with the circuit breaker rating.
- Ensure the enclosure is mounted securely using the integral feet.
- Check that the circuit breaker is in the correct position for operation.
- Verify the ON/OFF/AUTO switch is set to the desired mode.
Specs in practice
- Input Voltage
- 100 to 250 VAC, 50/60Hz compatibility.
- Operating Temperature
- Suitable for environments between -10°C and 50°C.
- Enclosure Rating
- NEMA 4X / IP65, indicating protection against dust and water ingress.
Images and diagrams
- The control panel features a large LCD display and a rotary dial for setting time cycles.
- The internal wiring section includes a circuit breaker for pump disconnect and branch circuit protection.
- The enclosure includes a padlockable latch for safety.
Model compatibility
- Suitable for residential, commercial, and industrial applications.
- Ideal for pool pumps, irrigation systems, lighting, and fans.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.