Overview
The Potter & Brumfield CDB-38-70005 is a general-purpose on-delay time delay relay designed for industrial automation and control applications. This DPDT relay provides adjustable time delays from 1.8 to 180 seconds, making it suitable for motor soft-start circuits, delayed shutdown sequences, equipment interlocks, and protective timing functions. The compact socketable design integrates easily into control panels and junction boxes.
Key Features
- Adjustable on-delay time range: 1.8 to 180 seconds
- Dual pole double throw (DPDT / 2 Form C) contact configuration
- 10A maximum switching current at rated voltage
- Rated for 277VAC operation (socket-mounted)
- Compact general-purpose relay form factor
- Low power consumption control circuit
Technical Specifications
- Contact Configuration: DPDT (2 Form C)
- Maximum Switching Capacity: 10A @ 277VAC
- Time Delay Range: 1.8 to 180 seconds
- Delay Type: On-Delay (energize to delay)
- Mounting Style: Plug-in socket / Base connector
- Manufacturer: Potter & Brumfield (TE Connectivity)
- Operating Temperature: Standard industrial range
- Control Voltage: Per circuit design (adjustable delay potentiometer)
Typical Applications
- Motor soft-start and controlled acceleration circuits
- Pump sequencing and delayed pump shutdown
- Equipment startup interlocks and lockout timers
- Furnace ignition delay and fuel valve control
- Compressor unload and bleed-down cycles
- Conveyor belt and drive protection timing
Compatibility & Replacements
Compatible With
- Standard relay sockets and bases for Potter & Brumfield CDB series
- Industrial control panels and NEMA enclosures
- 24VDC, 120VAC, and 277VAC control circuits
- Motor control centers (MCCs) and starter circuits
Replaces / Drop-In Replacement For
The CDB-38-70005 directly replaces other CDB series on-delay relays with identical pin configurations and socket compatibility. Verify base compatibility with your specific control circuit before ordering. Do not assume interchangeability with other relay types without consulting the circuit diagram and relay base specifications.
Works With
- Allen-Bradley control systems and motor starters
- Square D / Schneider Electric panels
- Eaton / Cutler-Hammer starter circuits
- Siemens industrial controls
- General-purpose 24VDC and 120VAC control logic
- Motor control interlocks and sequencing logic
