Product Description
The Sprecher+Schuh CEF 1-12 is a solid-state Electronic Motor Protection Relay designed for comprehensive motor protection in industrial applications. It provides thermal overload protection, single-phase and phase-unbalance protection, thermistor overtemperature protection, and overcurrent warning indication. Current settings are digitally adjusted via eight slide switches, with a built-in 20A base value and a full adjustable range of 0.5 to 180 amperes. This unit is part of the CEF1 series, which was scheduled for obsolescence by the manufacturer in 2006 and is considered a discontinued legacy product.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Sprecher+Schuh |
| Model / Part Number | CEF 1-12 |
| Product Type | Electronic Motor Protection Relay (Overload Relay) |
| Series | CEF1 |
| Current Range | 0.5 – 180 A |
| Base Current (built-in) | 20 A |
| Rated Motor Circuit Voltage (UL & CSA) | 600 VAC |
| Control Circuit Max Voltage | 440 VAC |
| Supply Voltage – AC (50/60 Hz) | 24, 36, 48, 110, 220, 240, 380, 415, or 440 VAC |
| Supply Voltage – DC | 24 VDC or 48 VDC |
| Power Consumption | AC: 2.5 VA (2 W) / DC: 2 W |
| Max Total Power Loss (CEF1-12) | AC: 4.5 VA (4 W) / DC: 4 W |
| Frequency | 50/60 Hz |
| Number of Phases | 3 |
| Protection Functions | Thermal Overload, Phase Failure, Phase Unbalance, Thermistor Overtemperature, Overcurrent Warning |
| Overcurrent Warning Threshold | 110% of set FLA (red LED flashes) |
| Current Setting Method | 8 digital slide switches |
| Reset Type | Manual (push button); Remote reset optional via CER1 module; Automatic reset available for thermal overload & thermistor functions |
| Output Relay Operation | Energized during normal operation; de-energizes on fault (fail-safe, closed circuit) |
| Degree of Inertia | Adjustable (selectable trip time) |
| Fault Indication | Individual LEDs (red = fault, green = ready/power on) |
| Mounting | Panel mount; DIN rail (EN 50022-35) via optional adapter |
| Dimensions (H x W x D) | 120 mm x 100 mm x 143 mm (approx., CEF1-11/12) |
| Weight | 2.40 lbs (approx.) |
| Technology | Solid State (Electronic) |
| Manufacturer Status | Discontinued / Obsolete |
| Standards | UL, CSA |
We warranty all items for 30 days from date of purchase.
Other Details
We warranty all items for 30 days from date of purchase. If you experience any issues with your item within this period, please contact us and we will work with you to resolve the problem. This warranty covers defects in functionality but does not cover damage caused by misuse, improper installation, or normal wear and tear.Product Videos
Custom Field
GTIN 679523686161
Full Load Amps 20 A
Manufacturer Sprecher+Schuh
Part Number CEF 1-12
Shelf K-9
Model CEF 1-12
MPN CEF 1-12
Type Overload Relay
