The 50R single-phase voltage monitor has a voltage-sensing circuit which constantly monitors the single-phase power for a low voltage condition. Single-phase motors on fans, compressors, air conditioners, heat pumps, well pumps, sump pumps and small conveyor motors are all applicable to the Model 50R. When a harmful condition is detected, the output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to an acceptable level and a specified amount of time has elapsed (restart delay). The trip delay prevents nuisance tripping due to rapidly fluctuating power line conditions.

Interface between MPU-32 or FPU-32 and 5-A-secondary, 1-A-secondary, and sensitive current transformers.

SE-325DNT is a neutral-grounding resistor monitor with a supply voltage of 120 ac-dc and a ground-fault trip level of 0.5–4.0 A.

SE-330-00-00 is an advanced ground-fault and neutral-grounding resistor monitor with a supply voltage ac of 65–265 and a supply voltage dc of 85–275. Network communications is offered via USB.

VAr Load Sharer. 415/480V 5A. The T4900 is designed to control a generator operating in parallel with the grid, or a generator operating in parallel with other generators (which are also controlled by T4900 units). The T4900 will continuously measure and compare the reactive current on the generator to an external DC reference signal connected to the “parallel line” input. The T4900 will increase or decrease the voltage of the generator (through the AVR) if it finds the reactive current level to be either too low or too high. Two built-in relays provide the increase and decrease pulses for the automatic voltage regulator (AVR). The strength (width) of the pulses is proportional to the voltage deviation. The E7800 Motorised Potentiometer can be used to adapt the contact pulses to a signal suitable for most AVR’s.

The ABB RMM1BB20RL is a high-performance motor control relay designed for industrial automation and process control applications. Engineered by ABB - Electrification, a leader in power and automation solutions, this relay ensures reliable operation in demanding environments. With robust construction and advanced features, it provides precise control and protection for motors and other electrical loads. Ideal for use in manufacturing, HVAC systems, and industrial machinery, the RMM1BB20RL delivers efficiency and durability. Its compact design and easy installation make it a versatile choice for various industrial applications.

Remote indication and reset for the SE-105 and SE-107. NEMA 4 and NEMA 13 rating.

3 Channel GF-GC Monitor. The SE-145 is a three-channel, microprocessor-based, combination ground-wire monitor and ground-fault relay for resistance-grounded or solidly grounded systems. It continuously monitors the integrity of the ground wire to protect portable equipment from hazardous voltages caused by ground faults. The SE-145 is designed for use on three-way splitter box applications. COMPUTER TO RELAY CONNECTION: Connect the SE-145 to the network using a standard Ethernet patch cable. Use of a crossover cable to connect the SE-145 directly to the computer running SE-MON-GFGC is not recommended. A typical router will assign an IP address to all connected computers that are using DHCP. The SE-145 does not support the use of DHCP. If the SE-145 is being set-up for first time, it is recommended to only have one SE-145 connected to the network to prevent communication errors.

SE-325D is a neutral-grounding resistor monitor with a supply voltage of 120 ac-dc and a ground-fault trip level of 0.5–4.0 A.

Load Sharer. 415/480 VAC 5A. The T4400 is designed to control a generator operating in parallel with the grid, or a generator operating in parallel with other generators (which are also controlled by T4400 units). The T4400 includes built-in frequency control and an optimized regulation scheme. These two features provide near perfect stability and compensates for any drift within the speed controller. A soft load/unload facility is also included.

50-W ground-check termination assembly with convenient mounting holes and screw terminals.

Allows 5-kV systems to be connected to relay.