The versatile RELAY-URM Series relay module can switch up to eight 15 A loads using low-level input signals from PLCs, process controllers, and indicators. Its flexible inputs will accept a wide variety of control signals. Selectable input allows activation of output relays on a direct-acting or reverseacting signal. Similarly, input signals can range from 5 to 24 Vdc. Conditioning of input allows open-collector or logic level inputs (e.g., TTL, CMOS) from PLCs or controllers to be used for switching output relays. In addition to working with control/logic level signals, the RELAY-URM can activate output relays on contact closure.
Many process-control instruments have low-power relays that provide contact closure for low-amperage switching but are not suitable for handling heavy loads. Simply connect the low-power relay contact output to the RELAY-URM unit and instantly get up to eight 15 A load switching relays.
Input and output connections are made through Euro-style pluggable connectors, conveniently located on the top and bottom of the unit. Screw-in terminals allow for quick connect/disconnect of wires.
The unit is housed in a versatile enclosure that can be mounted on a DIN rail or a wall. If desired, the same enclosure can be panel mounted, with relay and AC and DC supply status visible on the front. LEDs on the front panel turn on when a relay is energized.
Both 4- and 8-relay module units come with a built-in universal power supply that operates on 100 to 240 Vac. This supply provides power to the internal electronics and relays and puts out up to 20 W (5 Vdc), available for external applications.
SPECIFICATIONS Relay Specifications: Type: Electro-mechanical relay, SPDT Current Rating: 15 A Switched Voltage: Up to 250 Vac Coil Voltage: 5 Vdc Operating Time (Typical): 10 ms Release Time: 5 ms Mechanical Life Expectancy: 10 million operations Temperature Rise: 25°C (45°F) at nominal coil voltage Output Connections: Type: Euro-style pluggable connectors Terminals: Screw-type Terminal Spacing: 5 mm (0.196') Stripped length: 6 mm (0.236') Current Rating: 15 A Wire Size: 22-14 AWG Input Connections: Type: Euro-style pluggable connectors Terminals: Screw-type Terminal Spacing: 3.51 mm (0.137') Stripped Length: 7 mm (0.275') Current Rating: 8 A Wire Size: 28-16 AWG Power Supply: Universal Input: 100 to 240 Vac Power: 25 W Overvoltage Protection: 115 to 135% of output Leakage Current: Less than 0.5 mA Efficiency: 75 to 78% typical Output Termination: Euro-style screw terminal; dual supply output available (consult Engineering) Dimensions: Case: 114 L x 69 W x 140 mm D (4.5 x 2.7 x 5.5') Bezel size: 76 W x 146 H x 1.5 mm D (3.0 x 5.75 x 0.06') Weight: 0.9 kg (2 lb)