GIC MJ83BK Temperature Monitoring
The GIC MJ83BK Temperature Monitoring offers 110 - 240 VAC supply voltage, - 15 C to +60 C operating temperature, Base / DIN rail mounting, IP 20 for Terminals, IP 40 for Enclosure degree of protection. Manufactured by GIC under the GIC Temperature Monitoring category, this model belongs to the GIC MJ Series.
| Brand | GIC |
| Product Type | Temperature Monitoring |
| Model Number | MJ83BK |
GIC MJ83BK Temperature Monitoring – Technical Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 110 - 240 VAC |
| Supply Variation | -20% to + 10% |
| Supply Frequency | 50/60 Hz |
| Power Consumption(Max) | 4 VA |
| Trip Level | 2.7 kΩ, (± 5%) |
| Reset Level | 1.71kΩ (± 5%) |
| Sensor Short | <20Ω , (±4Ω ) |
| Hysterisis | 40Ω (±4Ω ) |
| Sensor Open | > 20kΩ (± 5%) |
| Max Cold Res( ) of Sensor Chain | < 1.5 kΩ |
| Reset Mode | Auto, Manual, Remote |
| Repeat Accuracy | 1% |
| ON Delay | < 350 ms |
| OFF Delay | 100 ms |
| Reset Time | 150 ms |
| Coil Output | 2 C/O |
| Contact Rating | 5A (Resistive) @ 250 VAC / 28 VDC |
| Electrical Life | 1 x 10^5 |
| Mechanical Life | 1 x 10^6 |
| Utilization Category AC - 15 | Rated Voltage (Ue): 120/240 V, Rated Current (Ie): 3.0/1.5 A |
| Utilization Category DC - 13 | Rated Voltage (Ue): 24/125/250 V, Rated Current (Ie): 2.0/0.22/0.1 A |
| Operating Temperature | - 15 C to +60 C |
| Storage Temperature | - 25 C to +80 C |
| Relative Humidity | 95% (Rh) |
| Degree of Protection | IP 20 for Terminals, IP 40 for Enclosure |
| Dimension (W x H x D) (in mm) | 22.5 X 83 X 100.5 |
| Enclosure | Flame Retardant UL94-V0 |
| Weight (unpacked) | 120 g |
| Mounting | Base / DIN rail |
The GIC MJ83BK Temperature Monitoring relay delivers precise protection for motors, transformers, and control systems by monitoring resistance levels in sensor chains. Designed to operate on a 110–240 VAC supply with ±20% variation tolerance, it maintains stable performance across different setups. With a trip level of 2.7 kΩ, reset level of 1.71 kΩ, and configurable auto, manual, or remote reset modes, it provides engineers with reliable control over system protection. The unit integrates safety functions such as short sensor detection below 20Ω and open sensor detection above 20kΩ, ensuring early fault identification and reducing downtime. Its 2 C/O relay outputs rated at 5A @ 250 VAC / 28 VDC make it highly versatile for integration with alarms and protection systems.
Built with a flame-retardant UL94-V0 enclosure and protected with IP20/IP40 ratings, the MJ83BK withstands tough industrial conditions, including up to 95% relative humidity and temperatures from -15°C to +60°C. It is compact (22.5 × 83 × 100.5 mm), lightweight at 120 g, and supports base or DIN-rail mounting for flexible installation. Its long service life is backed by 1 × 10⁵ electrical operations and 1 × 10⁶ mechanical operations, offering consistent reliability in continuous monitoring applications.
Applications of the MJ83BK Temperature Monitoring range from protecting induction motors and generator windings to safeguarding industrial heaters, cooling fans, and automation control panels. By preventing overheating and extending equipment lifespan, it helps industries reduce unplanned shutdowns and improve operational efficiency. With trusted engineering from GIC, this monitoring solution ensures dependable performance and enhanced system safety for diverse industrial environments.
