Allen-Bradley 700-CPM Bulletin 700 Compact Control Relay

The Allen-Bradley 700-CPM, also cataloged as the 700-CPM Bulletin 700 Compact Control Relay, provides switching for AC and DC control circuits with configurable contact arrangements. The relay supports control coils, main contacts, auxiliary contacts, and optional plug-in surge suppression for PLC output protection.

Hardware Specifications

Industrial Control Relay Characteristics

The 700-CPM uses mechanical contact switching for discrete control circuits and supports both AC and DC coil configurations. Its fixed main contact arrangement can be supplemented with top-mounted auxiliary contact blocks when additional signaling points are required.

Optional plug-in surge suppression can be installed across the control coil. RC networks and varistors apply to AC coils, while diode suppression applies to compatible DC coil configurations.

The relay supports 35 mm DIN rail installation or direct panel mounting. Screw terminals provide the electrical connection between field wiring and the relay contact or coil circuits.

Contact selection determines the applicable thermal current and switching capacity. Therefore, the selected contact arrangement and load category must match the connected control circuit.

Frequently Asked Questions

Q: Can the 700-CPM be used directly with PLC outputs?

A: The relay coil can interface with a PLC output when the selected coil voltage and coil current requirements match the output circuit. Optional surge suppression can reduce coil-generated transients.

Q: Can the contact configuration be expanded after installation?

A: The supplied data specifies 4-pole base configurations with snap-on auxiliary blocks supporting expansion up to 8 poles.

Q: Is the relay suitable for both AC and DC switching?

A: Yes. The specified device supports AC and DC coil variants and provides separate AC-15 and DC-13 switching ratings according to the selected contact configuration.

Field Installation Guidelines

Mount the relay on a compatible 35 mm DIN rail or secure it directly to the panel using the specified mounting arrangement.

Verify the coil voltage before wiring. AC and DC coil variants require different supply characteristics and may require different suppression components.

Keep coil wiring separated from sensitive low-level signal wiring where practical. Route switching conductors to minimize unnecessary coupling into analog or communication circuits.

Install the selected surge suppressor directly at the relay coil terminals when suppression is required. Confirm that the suppressor type matches the coil circuit before energizing the device.

Terminate conductors securely at the screw terminals and maintain the enclosure clearances required by the panel design. Do not exceed the applicable contact voltage, current, or load-category ratings.

For grounded control systems, connect protective and functional grounding conductors according to the panel grounding scheme. Do not use signal shields as substitutes for protective grounding conductors.

After installation, verify contact continuity, coil energization, auxiliary contact operation, and suppression component installation before connecting the relay to the controlled circuit.